LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 LM3519 High Frequency Boost White LED Driver with High-Speed PWM Brightness Control Check for Samples: LM3519 FEATURES DESCRIPTION * * * * * The LM3519 drives up to 4 white LEDs with constant current to provide LCD backlighting in handheld devices. The LED current is internally set to 20mA. The series connection allows the LED current to be identical for uniform brightness and minimizes the number of traces to the LEDs. Brightness control is achieved by applying a PWM signal on enable with frequencies up to 30kHz. 1 2 * * * * Drives 2 to 4 LEDs at 20mA Up to 30kHz PWM Dimming Control Capability >80% Peak Efficiency Up to 8MHz Switching Frequency Small External Components: 1H 3.3H(typ.2.2H) Inductor and 1F Output Capacitor True Shutdown Isolation Over-Voltage Protection Wide Input Voltage Range: 2.7V to 5.5V Small Footprint SOT-23 Package The LM3519 features a proprietary PFM regulation architecture with switching frequencies between 2MHz to 8MHz, minimizing inductor size. Over-voltage protection circuitry and high frequency operation permit the use of low-cost small output capacitors. During shutdown, the output is disconnected from the input in order to avoid leakage current path through the LEDs to ground. APPLICATIONS * * * LCD, White LED Backlighting on Mobile Phones Digital Still Cameras and PDAs General Purpose LED Lighting in Handheld Devices The LM3519 is available in a tiny 6-pin SOT-23 package. Typical Application L 2.2 PH D Vin Cin 4.7 PF + - Vin Vout Sw Cout 1 PF Vout LM3519 En Gnd Logic Voltage Signal Input LED_rtn Vx Figure 1. Typical Application Circuit 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 2005-2013, Texas Instruments Incorporated LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com Connection Diagram 6-Lead SOT-23 Package 1 6 2 5 3 4 Top View PIN DESCRIPTIONS Pin # Name 1 En Description 2 Gnd Ground Connection 3 VOUT Output Voltage Connection 4 LED_rtn 5 SW Drain Connection of the Internal Power Field Effect Transistor (FET) Switch 6 VIN Input or Supply Voltage Connection Device Enable Connection White LED Current Sensing Input Connection These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) -0.3V to +6.5V VIN , En, & LED_rtn Pin -0.3V to +21V VOUT , Sw Pin Maximum Junction Temperature, (TJ-MAX) +150C -65C to +150C Storage Temperature Range ESD Rating (2) Human Body Model: Machine Model: (1) (2) 2kV 200V Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply ensured limits. For ensured performance limits and associated test conditions, see the Electrical Characteristics table. The human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin. Operating Ratings (1) Junction Temperature (TJ) Range -40C to +125C Ambient Temperature (TA) Range -40C to +85C Input Voltage Range (1) 2.7V to 5.5V Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply ensured limits. For ensured performance limits and associated test conditions, see the Electrical Characteristics table. Thermal Properties (1) Junction-to-Ambient Thermal Resistance (JA) (1) 2 220C/W The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction-to-ambient thermal resistance, JA, and the ambient temperature, TA. See Thermal Properties for the thermal resistance. The maximum allowable power dissipation at any ambient temperature is calculated using: PD(MAX) = (TJ(MAX) - TA)/JA. Exceeding the maximum allowable power dissipation will cause excessive die temperature. Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 Electrical Characteristics (1) (2) Limits in standard typeface are for TJ = +25C. Limits in bold typeface apply over the full operating junction temperature range (-40C TJ +125C). VIN = 3.6V, unless otherwise stated. Symbol IQ Parameter Conditions Supply Current Min Typ Max Shutdown: VEN = 0V 0.1 Not Switching: VEN = 1.8V 360 500 Switching: VEN = 1.8V, LED_rtn current = 30mA 550 900 Uni ts A ILED(TOL) LED Current Tolerance/Variation VIN = 3.6V, 2.2H, 4LEDs -10 5.5 10 % OVP Over-Voltage Protection Threshold OVP ON OVP OFF 18 17.8 18.9 18.6 20 19.8 V ILIM Switch Current Limit L = 2.2H RDS(ON) Power NMOS Switch ON Resistance ILEAKAGE Switch Leakage RLED_rtn(ON) LED_rtn NMOS Switch ON Resistance FS Switching Frequency IEN Enable Pin Bias Current En (1) (2) (3) VSW = 3.6V, VEN = 0V (3) Enable Threshold 750 mA 455 m 0.1 2 A 8.0 ILED = 20 mA , L = 1H 4LEDs 5.4 MH z VEN = 0V VEN = 1.8V 0.1 1.1 Device On Device Off 2 0.9 0.3 A V Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply ensured limits. For ensured performance limits and associated test conditions, see the Electrical Characteristics table. Min and max limits are ensured by design, test, or statistical analysis. Typical numbers are not ensured, but do represent the most likely norm. Current flows into the pin. Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 3 LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com BLOCK DIAGRAM Vout 3 Sw 5 Vin OVER VOLTAGE PROTECTION 6 CURRENT LIMIT IREF En 1 VREF ERROR AMPLIFIER + ON-TIME GENERATOR N3 Vin - Vin R S R DRIVER LOGIC N1 Q N2 4 2 LED_rtn Gnd Figure 2. Block Diagram Circuit Description The LM3519 is a step-up converter for white LED applications that uses a unique and proprietary pulse frequency modulation (PFM) architecture to optimize high efficiency at high frequency operation. Unlike most PFM architecture implementations, the LM3519's unique architectural implementation results in non-pulse skipping variable frequency operation. The regulator is forced to operate at the edge of Continous Conduction Mode (CCM). The error amplifier will set the end of the on-time (IPEAK of inductor) based on the load (LEDs) current. During this operation, the inductor current ramps up and reaches a peak current at end of the on-time. At this point, the internal power switch is turned off until the inductor current reaches zero, and the cycle repeats again. The switching frequency is set based on the charge (on-time) and discharge(off-time) of the inductor current. The frequency can range between 2MHz to 8MHz over the operating input range. The LM3519 operation can be best understood through an examination of the block diagram in Figure 2. When LED current is out of regulation, the LED_rtn voltage falls below or rises above the internal reference voltage (VREF). The error amplifier will output a signal to increase or decrease the proper on-time duration of N1 power FET. This correction allows the inductor's stored energy to increase or decrease to a sufficient level that when transferred to the load will bring the LED_rtn current back into regulation. During steady-state operation for a typical switching cycle, the oscillator sets the driver logic and turns on N1 power device. N1 conducts current through the inductor and reverse biases the external diode. The LED current is supplied by the output capacitor when N1 is conducting. Once N1 on-time period is concluded, the internal power device is turned off and the external diode is forward baised. The inductor current then flows through the diode to the LED load to replenish the output capacitor and keep the LED current regulated at the trimmed target. 4 Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 Typical Performance Characteristics (See Figure 1: VIN = 3.6V, CIN = 4.7F and COUT = 1F, L = 2.2H and 4 LEDs. TA = +25C, unless otherwise stated.) Efficiency vs VIN Efficiency vs VIN 90 85 2.2 PH 3.3 PH 83 25C 81 EFFICIENCY (%) EFFICIENCY (%) 80 -40C 85C 79 1.5 PH 70 60 77 4 LEDs 4 LEDs 75 2.7 3.1 3.5 3.9 4.3 4.7 5.1 50 2.5 5.5 4.5 Efficiency vs VIN 5.0 5.5 5.0 5.5 100 90 EFFICIENCY (%) 2.2 PH 80 1 PH 1.5 PH 70 60 1 PH 3.3 PH 80 1.5 PH 70 60 2 LEDs 3 LEDs 3.0 3.5 4.0 4.5 5.0 50 2.5 5.5 3.0 3.5 4.0 4.5 VIN (V) VIN (V) IOUT_ACCURACY vs VIN IOUT_ACCURACY vs VIN 10 16 8 14 12 6 ACCURACY (%) ACCURACY (%) 4.0 Efficiency vs VIN 3.3 PH 25C 4 -40C 2 0 85C 10 1 PH 8 2.2 PH 6 4 3.3 PH -2 -4 2.7 3.5 VIN (V) 90 50 2.5 3.0 VIN (V) 100 EFFICIENCY (%) 1 PH 2 3.0 3.3 3.6 3.9 4.2 4.5 VIN (V) 0 2.7 3.0 3.3 3.6 3.9 4.2 4.5 VIN (V) Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 5 LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) (See Figure 1: VIN = 3.6V, CIN = 4.7F and COUT = 1F, L = 2.2H and 4 LEDs. TA = +25C, unless otherwise stated.) IOUT vs VIN IOUT vs VIN 30.0 32.0 30.0 28.0 2.2 PH 26.0 28.0 IOUT (mA) IOUT (mA) 1.5 PH 24.0 1 PH 22.0 20.0 2.2 PH 1.5 PH 26.0 24.0 1 PH 22.0 3.3 PH 20.0 3.3 PH 18.0 18.0 3 LEDs 4 LEDs 16.0 2.5 3.0 3.5 4.0 4.5 5.0 16.0 2.5 5.5 3.0 3.5 VIN (V) 4.0 4.5 5.0 5.5 VIN (V) IOUT vs VIN IOUT vs PWM Duty Cycle (VIN = 3.6V, L = 2.2H) 22 22.0 19 21.5 IOUT (mA) IOUT (mA) 16 21.0 25C -40C 20.5 EN =100 Hz and 500 Hz 13 10 7 85C 20.0 4 19.5 2.7 1 3.0 3.3 3.6 3.9 4.2 5 4.5 15 25 35 45 55 65 75 85 95 DUTY CYCLE (%) VIN (V) IOUT vs PWM Duty Cycle (VIN= 3.6V, L = 2.2H) IOUT vs PWM Duty Cycle (VIN = 3.6V, L = 1H) 23 22 30 kHz 20 19 50 kHz 17 16 IOUT (mA) IOUT (mA) EN = 100 Hz and 500 Hz 14 20 kHz 11 8 13 10 7 5 4 EN = 20 kHz, 30 kHz, and 50 kHz 2 1 5 15 25 35 45 55 65 75 85 95 DUTY CYCLE (%) 6 5 15 25 35 45 55 65 75 85 95 DUTY CYCLE (%) Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 Typical Performance Characteristics (continued) (See Figure 1: VIN = 3.6V, CIN = 4.7F and COUT = 1F, L = 2.2H and 4 LEDs. TA = +25C, unless otherwise stated.) IOUT vs PWM Duty Cycle (VIN = 3.6V, L = 1H) 25 Switching Frequency vs VIN 9.0 30 kHz 22 8.0 50 kHz 16 7.0 FREQUENCY (MHz) IOUT (mA) 19 20 kHz 13 10 7 1 PH 6.0 5.0 2.2 PH 4.0 3.0 3.3 PH 2.0 4 1.0 EN = 20 kHz, 30 kHz, and 50 kHz 1 10 20 30 40 50 60 70 80 3 LEDS 0.0 2.7 90 100 3.0 3.3 DUTY CYCLE (%) 3.6 3.9 4.2 4.5 VIN (V) Switching Frequency vs VIN Switching Frequency vs VIN 9.0 9.0 1 PH, 4 LEDs 8.0 8.0 1 PH FREQUENCY (MHz) FREQUENCY (MHz) 7.0 6.0 2.2 PH 5.0 4.0 3.0 3.3 PH 2.0 1.0 -40C and 85C 7.0 25C 6.0 5.0 2 LEDS 0.0 2.7 3.0 3.3 3.6 3.9 4.2 4.0 2.7 4.5 3.1 3.5 3.9 4.3 4.7 Switching Frequency vs VIN Peak Inductor Current vs VIN 10.5 400 9.0 350 2.2 PH 1 PH 300 IPEAK (mA) FREQUENCY (MHz) 1 PH 6.0 2.2 PH 4.5 3.3 PH 250 200 3.0 150 3.3 PH 4 LEDs 1.5 2.7 5.5 VIN (V) VIN (V) 7.5 5.1 3.1 3.5 3.9 4.3 4.7 5.1 4 LEDS 5.5 100 2.7 3.0 3.3 3.6 3.9 4.2 4.5 VIN (V) VIN (V) Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 7 LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) (See Figure 1: VIN = 3.6V, CIN = 4.7F and COUT = 1F, L = 2.2H and 4 LEDs. TA = +25C, unless otherwise stated.) Peak Inductor Current vs VIN Peak Inductor Current vs VIN 400 400 350 350 2 LEDS 300 IPEAK (mA) IPEAK (mA) 300 2.2 PH 1 PH 250 200 3.3 PH 250 150 150 2.2 PH 1 PH 200 3.3 PH 3 LEDS 100 2.7 3.0 3.3 3.6 3.9 4.2 100 2.7 4.5 3.0 3.3 VIN (V) 1100 CURRENT LIMIT (mA) CURRENT LIMIT (mA) 4.5 1200 1100 85C 1000 25C and -40C 900 800 1 PH 1000 900 800 2.2 PH 700 3.1 3.5 3.9 4.3 4.7 5.1 3.3 PH 600 2.7 5.5 3.1 3.5 VIN (V) 3.9 4.3 4.7 5.1 5.5 80 100 VIN (V) Iq (non switching) vs Temperature Iq (switching) vs Temperature 400 600 390 590 580 380 IQ SWITCHING (PA) IQ NON SWITCHING (PA) 4.2 Current Limit vs VIN 1200 370 360 350 340 570 560 550 540 530 520 330 320 -40 510 -20 0 20 40 60 80 100 TEMPERATURE (C) 8 3.9 VIN (V) Current Limit vs VIN (4LEDs, 1H) 700 2.7 3.6 500 -40 -20 0 20 40 60 TEMPERATURE (C) Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 Typical Performance Characteristics (continued) (See Figure 1: VIN = 3.6V, CIN = 4.7F and COUT = 1F, L = 2.2H and 4 LEDs. TA = +25C, unless otherwise stated.) LED Switch RDS_ON vs Temperature Power Switch RDS_ON vs Temperature 620 POWER SWITCH RDSON (m:) LED SWITCH RDSON (:) 11 10 9 8 7 6 -40 -20 0 20 40 60 80 100 570 520 470 420 370 320 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) TEMPERATURE (C) Start-up, (VIN = 3.6V, 4LEDs, 2.2H) Start-up (VIN = 3.6V, 4LEDs, 3.3H) Start-up (VIN = 3.6V, 2LEDs, 3.3H) Start-up, (VIN = 3.6V, 2LEDs, 2.2H) Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 9 LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) (See Figure 1: VIN = 3.6V, CIN = 4.7F and COUT = 1F, L = 2.2H and 4 LEDs. TA = +25C, unless otherwise stated.) 10 Typical Switching Waveform (VIN = 3.6V, 4LEDs, 3.3H) Typical Switching Waveform (VIN = 3.6V, 4LEDs, 2.2H) Typical Switching Waveform (VIN = 3.6V, 3LEDs, 2.2H) Typical Switching Waveform (VIN = 3.6V, 2LEDs, 2.2H) Typical Switching Waveform (VIN = 3.6V, 3LEDs, 1H) Typical Switching Waveform (VIN = 3.6V, 4LEDs, 1H) Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 APPLICATION INFORMATION Capacitor Selection To minimize output and input voltage ripple, low equivalent series resistance (ESR) ceramic capacitors are the best choice to use for the input and output filters. For most display applications, a 4.7F capacitor is recommended for CIN and 1F for COUT . Larger output capacitors can be used to reduce ripple voltage. To ensure good performance, a minimum of 0.47F COUT is required to trade off for large ripple voltage. Care must be taken to account for the true capacitance of a multilayer ceramic capacitor. Smaller case size capacitors typically have less capacitance for a given bias voltage as compared to a larger case size capacitor with the same bias voltage. Please confirm with capacitor manufacturer data before selecting the capacitor. Recommended capacitor manufacturers include but are not limited to: Table 1. Manufacturer AVX TDK Taiyo Yuden muRata Description Case Size 06033D105MAT-25V 0603 06036D475MAT-6.3V 0603 C2012X5R1A475M-10V 0805 TMK212BJ105KG-J 0805 EM212BJ475MG-16V 0805 GRM40-034B105K25 0805 GRM39X5R475K6.3 0603 Inductor Selection In order to maintain sufficient inductance, the saturation current rating of the inductor used with the LM3519 should be higher than the peak inductor current in the target application. Inductors with low DCR values have less power loss and higher efficiency. Larger inductor values such as 2.2H and 3.3H can be used to optimize efficiency, frequency and peak current. If 1H is used, the peak inductor current, frequency will be higher and the efficiency will be lower. Note that the switching frequency ranges will be higher at lower inductance. Typical frequency range is between 4 to 8MHz for 1H, 2 to 5MHz for 2.2H and 2 to 4MHz for 3.3H over the input range. Below is a sample list of low profile inductors. Some recommended inductor manufacturers include but are not limited to: Manufacturer L CoilCraft: DO3314-102 1H DO3314-222 2.2H DO3314-332 3.3H Coilcraft: LPO3310-102ML 1H LPO3310-222ML 2.2H LPO3310-332ML 3.3H Cooper: SD31121R0 1H SD3114-2R2 2.2H SD3114-3R3 3.3uH Taiyo Yuden: NR3015T1R0N 1H NR3015T2R2M 2.2H NR3015T3R3M 3.3H Case Size ISAT 2.1A 3.3x3.3x1.4mm 1.6A 1.4A 1.6A 3.3x3.3x1.0 mm 1.1A 0.95A 2.07A 3.1x3.1x1.4 mm 1.48A 1.15A 2.1A 3.0x3.0x1.5 mm 1.48A 1.21A Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 11 LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com Diode Selection Diodes with low forward voltage ratings (VF) and low junction capacitance magnitudes (CJ or CT or CD) are conducive to high efficiency. The chosen diode must have a reverse breakdown voltage rating (VR and/or VRRM) that is larger than the output voltage. The following criteria should be followed when choosing a diode: 1. VR (Diode Blocking Voltage Range) and VRRM (Diode Peak Repetitive Reverse Voltage Rating) > VOUT (Output Voltage) 2. IF or IO (Diode Average Forward Current Rating) ILOAD (Load Current) 3. IFRM (Diode Peak Repetitive Forward Current Rating) ILpeak (Peak Inductor Current) Some recommended diode manufacturers include but are not limited to: Manufacturer Vishay Description SS12(1A/20V) SS14(1A/40V) SS16(1A/60V) Central Semiconductor ONSemi CMSH1- 40M(1A/40V) MBRS1540T3(1.5A/40V) PWM DIMMING The LED current is set internally by the LM3519 to 20mA (typical); dimming control may be realized by applying a pulse width modulated(PWM) signal to the En pin. For example, a 50% duty cycle waveform will produce an average current of 10mA. A control signal frequency between 17kHz and 30kHz is suitable for dimming. Although the LM3519 is capable of operation outside this frequency range, it is not recommended to operate below 17kHz for the following reasons: 1) frequency below 100Hz is likely to cause visible flicker in the light emitted by the LED string. 2) frequency below 17kHz may induce audible noise due to combinations of some capacitance/PCB. A PWM frequency above 30kHz is possible but the current linearity vs duty cycle will be affected. If it is not possible to operate the dimming control above 17kHz, audible noise emission may be minimized by using capacitors with low susceptibility to piezoelectric induced stresses, such as poly film designs. Minimum audible noise is most likely to occur when the PWM frequency is less than 2kHz. It is recommended that any application using a PWM control signal below 17kHz be thoroughly evaluated for undesirable audible or visible noise. DRIVING 2 LEDs The LM3519 is optimized to drive up to 4LEDs. When driving 2LEDs, a minimum inductance of 2.2H is required to maintain good loop regulation and current accuracy. If a smaller inductor is used, the LED current will have more variation with input voltage than a typical application. The following curve illustrates the behavior. 12 Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 LM3519 www.ti.com SNVS394B - AUGUST 2005 - REVISED MAY 2013 50.0 45.0 IOUT (mA) 40.0 35.0 1 PH 30.0 1.5 PH 25.0 20.0 3.3 PH 2 LEDs 15.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VIN (V) Figure 3. IOUT vs VIN LAYOUT GUIDELINES The input capacitor, CIN, must be placed close to the LM3519. Placing CIN close to the device will reduce the metal trace resistance effect on input voltage ripple. Metal trace connections for the COUT capacitor can increase the effective series resistance, which affects output voltage ripple and efficiency. Trace connections to the inductor should be short and wide to reduce power dissipation, increase overall efficiency and reduce EMI radiation. The diode, like the inductor, should have trace connections that are short and wide to reduce power dissipation and increase overall efficiency. For more details regarding layout guidelines for switching regulators, refer to Application Note AN1149 SNVA021. Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 13 LM3519 SNVS394B - AUGUST 2005 - REVISED MAY 2013 www.ti.com REVISION HISTORY Changes from Revision A (May 2013) to Revision B * 14 Page Changed layout of National Data Sheet to TI format .......................................................................................................... 13 Submit Documentation Feedback Copyright (c) 2005-2013, Texas Instruments Incorporated Product Folder Links: LM3519 PACKAGE OPTION ADDENDUM www.ti.com 28-Feb-2017 PACKAGING INFORMATION Orderable Device Status (1) LM3519MK-20/NOPB ACTIVE Package Type Package Pins Package Drawing Qty SOT-23-THIN DDC 6 1000 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM Op Temp (C) Device Marking (4/5) -40 to 85 D52B (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. 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Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 28-Feb-2017 Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 3-Mar-2017 TAPE AND REEL INFORMATION *All dimensions are nominal Device LM3519MK-20/NOPB Package Package Pins Type Drawing SPQ SOT23-THIN 1000 DDC 6 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 178.0 8.4 Pack Materials-Page 1 3.2 B0 (mm) K0 (mm) P1 (mm) 3.2 1.4 4.0 W Pin1 (mm) Quadrant 8.0 Q3 PACKAGE MATERIALS INFORMATION www.ti.com 3-Mar-2017 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM3519MK-20/NOPB SOT-23-THIN DDC 6 1000 210.0 185.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated (TI) reserves the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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TI has not conducted any testing other than that specifically described in the published documentation for a particular TI Resource. Designer is authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or endorsement thereof. Use of TI Resources may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. TI RESOURCES ARE PROVIDED "AS IS" AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY DESIGNER AGAINST ANY CLAIM, INCLUDING BUT NOT LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF PRODUCTS EVEN IF DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, DIRECT, SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Unless TI has explicitly designated an individual product as meeting the requirements of a particular industry standard (e.g., ISO/TS 16949 and ISO 26262), TI is not responsible for any failure to meet such industry standard requirements. Where TI specifically promotes products as facilitating functional safety or as compliant with industry functional safety standards, such products are intended to help enable customers to design and create their own applications that meet applicable functional safety standards and requirements. Using products in an application does not by itself establish any safety features in the application. Designers must ensure compliance with safety-related requirements and standards applicable to their applications. Designer may not use any TI products in life-critical medical equipment unless authorized officers of the parties have executed a special contract specifically governing such use. Life-critical medical equipment is medical equipment where failure of such equipment would cause serious bodily injury or death (e.g., life support, pacemakers, defibrillators, heart pumps, neurostimulators, and implantables). Such equipment includes, without limitation, all medical devices identified by the U.S. Food and Drug Administration as Class III devices and equivalent classifications outside the U.S. TI may expressly designate certain products as completing a particular qualification (e.g., Q100, Military Grade, or Enhanced Product). Designers agree that it has the necessary expertise to select the product with the appropriate qualification designation for their applications and that proper product selection is at Designers' own risk. Designers are solely responsible for compliance with all legal and regulatory requirements in connection with such selection. Designer will fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of Designer's noncompliance with the terms and provisions of this Notice. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright (c) 2017, Texas Instruments Incorporated Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments: LM3519MK-20 LM3519MK-20/NOPB LM3519MKEV LM3519MKX-20 LM3519MKX-20/NOPB