MCP2036-I/P - Microchip Technology

MCP2036

Features:

• Complete Inductance Measurement System:

- Low-Impedance Current Driver

- Sensor/Reference Coil Multiplexer

- High-Frequency Detector

• Operating Voltage: 2.7 to 5.5V

• Low-Power Standby Mode

• Gain and Frequency set by external passive

components

Typi cal Applications:

• Harsh environment inductive keyboards

• Inductive rotational sensor interface

• Inductive displacement sensor interface

• Inductive force sensor interface

Description:

The MCP2036 Inductive Sensor Analog Front End

(AFE) combines all the necessary analog functions for

a complete inductance measurement system.

The device includes:

• High-frequency, current-mode coil driver for

exciting the sensor coil.

• Synchronous detector for converting AC sense

voltages into DC levels.

• Output amplifier/filter to improve resolution and

limit noise.

• Virtual ground reference generator for single

supply operation.

The device is available in 14-pin PDIP, SOIC and

16-pin QFN packages:

Package Types

VREF

LREF

LBTN

VDD

DRVOUT

DRVIN

CLK

VDET+

VDET-

VDETOUT

VSS

REFSEL

Reserved

LREF

LBTN

VDD

DRVOUT

DRVIN

CLK

REFSEL

VDET-

VDETOUT

VSS

Reserved

VDET+

VREF

MCP2036 16-pin QFN

MCP2036 14-pin PDIP, SOIC

Inductive Sensor Analog Front End Device

MCP2036

1.0 FUNCTIONAL DESCRIPTION

The MCP2036 measures a sensor coil’s impedance by

exciting the coil with a pulsed DC current and

measuring the amplitude of the resulting AC voltage

waveform. The drive current is generated by the

on-chip current amplifier/driver which takes the

high-frequency triangular waveform present on the

DRVIN input, and amplifies it into the pulsed DC current

for exciting the series combination of the sensor coils.

The AC voltages generated across the coils, are then

capacitively coupled into the LBTN and LREF inputs.

An input resistance of 2K between the inputs and the

virtual ground offsets the AC input voltages up to the

signal ground generated by the reference voltage

generator, as shown in Figure 1-1.

FIGURE 1-1: MCP2036 Block Diagram

Voltage

Reference

REFSEL

VDETOUT

DRVIN

CLK

DRVOUT

LBTN

LREF

VREF

VDD

VSS

Input MUX

Key Inductor Driver

Mixer

VDET+

VDET-

10K

Op. Amp. Block

MCP2036

FIGURE 1-2: MCP2036 Typical Application

The coil voltages are then multiplexed into the

Synchronous Detector section by the LBTN/LREF

multiplexer. This allows the microcontroller to select

which signal is sampled by the detector. The detector

converts the coil voltages into a DC level using a

frequency mixer, amplifier, and filter.

The mixer is composed of two switches driven by the

clock present on the CLK signal input. The switches

toggle the amplifier/filter between an inverting and

non-inverting topology, at a rate equal to the clock input

frequency. This inverts and amplifies the negative side

of the signal, while amplifying the positive side. The

result is a pulsed DC signal with a peak voltage,

proportional to the amplitude of the AC coil voltage.

The gain of the detector is set by two pairs of resistors;

one pair are the internal fixed series resistors between

the frequency mixer and the amplifier. The second

resistor pair are the two external gain set resistors

(RGAIN). The two capacitors (CFILTER) in parallel with

the external gain setting resistors form a low pass filter

which converts the pulsed DC output signal into a

smooth DC voltage which is proportional to the AC

sensor voltage input. The output of the system is

present on the VDETOUT pin, which drives the

microcontroller’s ADC input for conversion into a digital

value.

The virtual ground reference for the detector/amplifier

is generated by a second internal op amp which

produces a virtual ground equal to ½ the supply

voltage. The virtual ground is available externally at the

VREF output and used internally throughout the

detector circuit, allowing single supply operation. A

small external capacitance is required to stabilize this

output and limit noise.

MCP2036

LREF

LBTN

LREF

DRVOUT

10Ω

10nF

REFSEL

10nF

I/O

CD4052

Key Coils

PIC® Microcontroller

I/O

VDET-

VDETOUT

VDET+

VREF

CLK

DRVIN

PWM

ADC

CFILTER

RGAIN

CRGND

RIN

CIN

RADC

CADC

MCP2036

1.1 Coil Driver

The coil driver produces the excitation current for the

sensor coils.

The coil driver input is derived from the digital clock

supplied to the CLK input. The digital signal is first

filtered through a low-pass filter, composed of RIN and

CIN, and passed to the DRVIN input. The driver will

create a triangular current in phase and proportional

with the input voltage. Because the digital drive into the

RIN-CIN filter has a 50% duty cycle, the voltage on the

DRVIN input will be centered at VDD/2. The relationship

between voltage, current, inductance and frequency is

shown in Equation 1-1.

EQUATION 1-1:

1.2 Synchronous Detec tor and Output

Amplifier

The Synchronous Detector has two inputs, LREF and

LBTN, selectable by REFSEL. This routes either signal

into the frequency mixer of the detector. The frequency

mixer then converts the AC waveform into a pulsed DC

signal which is amplified and filtered.

The gain of the amplifier is user-settable, using an

external resistor, RGAIN (see Equation 1-2).

EQUATION 1-2:

An ADC plus firmware algorithm then digitizes the

detector output voltage and uses the resulting data to

detect a key press event.

1.3 Virtual Ground Voltage Reference

Circuit

To create both an inverting and non-inverting amplifier

topology, a pseudo split supply design is required. To

generate the dual supplies required, a rail splitter is

included, which generates the virtual ground by creat-

ing a voltage output at VDD/2. The output is used by the

external passive network of the Detector/Amplifier sec-

tion as a reference on the non-inverting input. A bypass

capacitor of 0.1uF is required to ensure the stability of

the output. For reference accuracy, no more than 3mA

should be supplied to, or drawn from the reference

output pin.

ΔVOUT ΔIDRV LCOIL

•2FDRV

••()=

VOUT Pulse d Output Voltage=

ΔIDRV AC Drive Current Amp litude=

FDRV AC Drive Current Frequenc y=

LCOIL Inductance of t he Sensor Coil=

Note: These equations assume a 50% duty cycle.

Note: The output amplifier/filter uses a

differential connection, so its output is

centered to VREF (VDD/2). The amplitude

of the detected signal should be calculated

as the difference between voltages at the

output of the detector and the reference

voltage.

Gain RGAIN 10kOhm⁄∼

MCP2036

2.0 PIN DESCRIPTION

Descriptions of the pins are listed in Table 2-1.

TABLE 2-1: PIN FUNCTION TABLE

2.1 Chip Select (CS)

The circuit is fully enabled when a logic-low is applied

to the CS input. The circuit enters in Low-Power mode

when a logic-high is applied to this input. During

Low-Power mode, the detector output voltage falls to

VREF and the supply current is reduced to 0.5 μA (typ.).

This pin has an internal pull-up resistor to ensure

proper selection of the circuit.

2.2 Voltage Reference (VREF)

VREF is a mid-scale reference output. It can source and

sink small currents and has low output impedance. A

load capacitor between 100nF and 1μF needs to be

located close to this pin.

2.3 Power Supply (VDD, VSS)

The VDD pin is the power supply pin for the analog and

digital circuitry within the MCP2036. This pin requires

an appropriate bypass capacitor of 100nF. The voltage

on this pin should be maintained in the 2.7V-5.5V range

for specified operation.

The VSS pin is the ground pin and the current return

path for both analog and digital circuitry of the

MCP2036. If an analog ground plane is available, it is

recommended that this device be tied to the analog

ground plane of the PCB.

2.4 Inductor Inputs (LREF, LBTN)

These pins are inputs for the external coils (reference

and sensor). The inputs should be AC coupled to the

coils by a 10nF ceramic capacitor.

2.5 Input Selection (REFSEL)

Digital input that is used to select between coil inputs

(reference and sensor).

2.6 Clock (CLK)

The external clock input is used for synchronous

detection of the AC waveforms on the coils. The clock

signal is also used to generate a triangular waveform

applied to coil driver input.

2.7 Inductor Driver Input (DRVIN)

The analog input to the coil driver. The triangular

waveform applied to this input should be in phase with

the clock signal for best performance.

2.8 Inductor Driver Output (DRVOUT)

Driver output used to excite the sensor coils. It is a

current-mode output designed to drive small inductive

loads.

Pad Name Pin Number I/O Type Description

14 Pins 16 Pins

VREF 1 16 OUT AN Voltage Reference

LREF 2 1 IN AN Reference Inductor Input

LBTN 3 2 IN AN Active Inductor Input

VDD 4 3 PWR AN Power Supply

DRVOUT 5 4 OUT AN Current Driver Output for Inductors

DRVIN 6 5 IN AN Current Driver Input

CLK 7 6 IN CMOS Clock Signal

REFSEL 8 7 IN CMOS Detector Select Input

CS 9 8 IN CMOS Chip Select, Active low

Reserved 10 9 — — Must be tied to GND for proper

operation.

VSS 11 10 PWR AN Power Supply Return

VDETOUT 12 11 OUT AN Detector Output Voltage

VDET- 13 12 IN AN Negative Input for Output Detector

VDET+ 14 13 IN AN Positive Input for Output Detector

NC 14 — — No connect

NC 15 — — No connect

MCP2036

2.9 Detector Output Voltage (VDETOUT)

The amplifier/filter output from the detector. This is a

low-impedance analog output pin (VOUT) for driving the

microcontroller ADC. The detector output is rail-to-rail.

2.10 Inputs for Output Detect or (VDET+,

VDET-)

The non-inverting and inverting inputs for the

amplifier/filter op amp. The two inputs are connected to

the output of the mixer circuit through two internal

10KΩ resistors.

MCP2036

3.0 APPLICATIONS

The MCP2036 is an Analog Front End device that uses

the electromagnetic interaction between a conductive

target and a sensing coil to detect the pressure applied

by the user on the surface of a touch panel. The device

incorporates all analog blocks for a simple inductor

impedance measurement circuit.

For an inductive touch system, two methods are used

for switching the driver and measurement circuitry

between the different sensor coils: analog multiplexers

and GPIO grounding (see Figure 3-1 and Figure 3-2).

The MCP2036 is designed to work with both

configurations:

FIGURE 3-1: Using Analog-Multiplexer for Key Selection (Example)

MCP2036

LREF

LBTN

LREF

DRVOUT

10Ω

10nF

REFSEL

10nF

I/O

CD4052

Key Coils

PIC® Microcontroller

LREF

MCP2036

LBTN

LREF

DRVOUT

REFSEL

I/O

10Ω

10nF

I/O

10nF

4K7

PIC® Microcontroller

I/O

4K7

Key Coils

MCP2036

FIGURE 3-2: Using GPIO for Key Selection (Example)

3.1 Application example

Figure 3-3 shows an example for a 4-key Inductive

Touch keyboard with key controlled by the IO pins of

the PIC® MCU.

FIGURE 3-3: MCP2036 Typical Application

The PIC® microcontroller is used to generate a square

wave signal and to do all the necessary operations for

proper detection of the key press event.

Then, RIN-CIN filter converts the square wave output of

the PWM into a quasi-triangular waveform.

To calculate the amplitude of the triangular signal, the

standard charging time equation for an RC network will

be used, as shown in Equation 3-1:

EQUATION 3-1:

For the first half of the square wave, the capacitor CIN

is charged through RIN, for the second half, it is

discharged through RIN, and assuming that clock

signal has a 50% duty cycle factor, we can consider:

EQUATION 3-2:

MCP2036

LREF

LBTN

LREF

DRVOUT

10Ω

10nF

REFSEL

10nF

I/O

CD4052

Key Coils

PIC® Microcontroller

I/O

VDET-

VDETOUT

VDET+

VREF

CLK

DRVIN

PWM

ADC

CFILTER

RGAIN

CRGND

RIN

CIN

RADC

CADC

Vt() Vstep 1tRC⁄–()exp–[]•=

Vstart VDD 2⁄-ΔV=

Vstop VDD 2⁄+ΔV=

MCP2036

When the PWM signal switches from low-to-high or

from high-to-low, the step voltage applied to the

capacitor CIN will be:

EQUATION 3-3:

Substituting in the equation for an RC network:

EQUATION 3-4:

Vstep VDD 2⁄ΔV+()=

ΔVVDD

-----------

1t–

RINCIN

------------------

⎝⎠

⎛⎞

exp–

1t–

RINCIN

------------------

⎝⎠

⎛⎞

exp+

-------------------------------------------•=

2ΔVV

DD 2⁄ΔV+()1tRC⁄–()exp–[]•=

MCP2036

The peak-to-peak amplitude of the resulting triangular

waveform, at the coil driver input, is shown in

Equation 3-5:

EQUATION 3-5:

From the previous equation, the designer should

choose values for VPKPK and RIN. Using the equation

above, the value of CIN will be:

EQUATION 3-6:

The amplitude of the pulsed current applied to key

inductors will be:

EQUATION 3-7:

This current produces a pulsed voltage to key inductors

ends. The amplitude of this voltage will be:

EQUATION 3-8:

The total voltage across both the reference and sensor

coils would be double (two series inductors). For a

specific power supply voltage, half of this power supply,

relative to the voltage reference, is available for output

amplifier/detector. Assuming a 30% margin, the

desired gain for the detector should be about:

EQUATION 3-9:

The gain of the amplifier is user-settable, using an

external resistor, RGAIN. The value of that resistor will

be determined using the following equation:

EQUATION 3-10:

With a 10-bit ADC, using oversampling and averaging

techniques, the effective resolution is close to 11 bits.

As shown in AN1239, “Inductive Touch Sensor

Design”, the typical shift in sensor impedance is typi-

cally 3-4%, so the actual number of counts per press is

typically between 20 and 40 counts. In this way, the

microcontroller firmware could easily detect press

event.

Note: VPKPK should not exceed specified value

(600mV) for best performance.

Note: Assuming a power supply of 5V and

VPKPK=500mV, for RIN=3.9KΩ, CIN should

have about 320pF. A 330pF capacitor will

be used.

Note: For a PWM frequency of 2 MHz and

inductor value of 2.7µH, the amplitude of

pulsed voltage will be:

VPKPK 2ΔV=

VPKPK VDD

1t–

RINCIN

------------------

⎝⎠

⎛⎞

exp–

1t–

RINCIN

------------------

⎝⎠

⎛⎞

exp+

-------------------------------------------•=

CIN t

RIN ln VDD VPKPK

–

VDD VPKPK

----------------------------------------

⎝⎠

⎜⎟

⎛⎞

•

-------------------------------------------------------------------1

2FR

VDD VPKPK

–

VDD VPKPK

----------------------------------------

⎝⎠

⎜⎟

⎛⎞

ln•••

-------------------------------------------------------------------------------------==

ΔIV

PKPK GDRV

•=

GDRV - Gain of Coil Driver

ΔULΔI

Δt

------•LV

PKPK GDRV

•• 2F•==

F - PWM Frequency

L - Inductance of Key Inductor

ΔU10.8mV=

Note: For a power supply of 5V and ΔU = 10mV,

the resulted gain is 81. To obtain this gain,

RGAIN = 820kOhm should be used.

Gain 70% VDD

-----------

⎝⎠

⎛⎞

•

2ΔU•

---------------------------------=

Gain RGAIN/10kOhm∼

MCP2036

4.0 ELECTRICAL CHARAC TERISTICS

4.1 Absolute Maximum Ratings

Ambient temperature under bias.................-40°C to +125°C

Storage temperature .................................. -65°C to +150°C

Voltage on VDD with respect to VSS............. -0.3V to +6.5V

Analog Inputs (VDET+, VDET-).............VSS-1.0V to VDD+1.0V

Voltage on all other pins with

respect to VSS ..................................... -0.3V to (VDD + 0.3V)

Current at Output and Supply Pins.............................±30 mA

Human Body ESD Rating............................................2000 V

Machine Model ESD Rating ..........................................200 V

Maximum Junction Temperature ……………………....+150°C

4.2 Specifications

TABLE 4-1: DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, TA = +25°C, VDD = +2.7V to +5.5V, VSS = GND.

Parameters Sym. Min. Typ. Max. Units Conditions

General Device Parameters

Supply Voltage VDD 2.7 — 5.5 V

Power-Down Current IPD —12—nACS = 1, VDD = +2.7V, (N ote 1)

IPD —25—nACS = 1, VDD = +5.5V, (N ote 1)

Quiescent Current IDD —2—mAV

DD = +2.7V,

DRVIN = 0V, CLK = Low

IDD —3.7—mAV

DD = +5.5V

DRVIN = 0V, CLK = Low

Active Current IDD —3.4—mAV

DD = +2.7V,

CLK = 2 MHz

IDD —6.8—mAV

DD = +5.5V

CLK = 2 MHz

Digital IO Parameters

Digital Input High Voltage VIH 0.7VDD —— V

Digital Input Low Voltage VIL ——0.3V

DD V

Input Pins Leakage Current ILKG ——±100nACS, CLK, REFSEL, LREF, LBTN

Output Ampl ifier /Filter Speci fic Param e ters

System Parameters

DC Open Loop Gain AOL 90 110 — dB

Power Supply Rejection Ratio PSRR — 86 — dB

Common Mode Rejection Ratio CMMR 60 76 — dB

Amplifier Input Characteristics

Input Offset Voltage VOS ——±7mV

Input Bias Current IB——±20pA(Note 1)

———±1nA(Note 1)

Input Offset Current IOS ——±1pA(Note 1)

Input Impedance ZIN —10

13||6 — Ω||pF Common mode impedance

——10

13||6 — Ω||pF Differential impedance

Amplifie r Output Charac t e r is tics

Minimum Output Voltage VOMIN VSS+20 — — mV

Maximum Output Voltage VOMAX ——V

DD-20 mV

MCP2036

TABLE 4-2: AC CHARACTERISTICS

Short Circuit Current ISC —±6—mAV

DETOUT

, VDD = 3V

——±10—mAV

DETOUT

, VDD = 5V

Voltage Reference Specific Parameters

Output Voltage VREF —V

DD/2 — mV

Output Short Circuit Current ISC —6—mAV

DD = 3V

——10—mA V

DD = 5V

Maximum Output Capacitance COUT ——1 µF(Note 1)

Series Output Resistance RSER — 250 — ΩInternal resistor used to stabilize

op amp output for pure

capacitive loads

Coil Driver Specific Parameters

System Parameters

Amplifier Current Gain AOL —3—mA/VV

DD = +2.7V

AOL —3.6—mA/VV

DD = +5.5V

Power Supply Rejection Ratio PSRR 60 — — dB

Input Characteristics

Input Voltage Range VMAX VDD/2

-300

—V

DD/2

+300

mV VDD = 5V

Input Bias/Leakage Current IB— — ±20 pA T = 85°C (Note 1)

IB— — ±1 nA T = 125°C (Note 1)

Input Impedance ZIN —10

13||6— Ω||pF Common mode impedance

——10

13||6— Ω||pF Differential impedance

Output Characteristics

Minimum Output Voltage VOMIN VSS+20 mV

Maximum Output Voltage VOMAX ——V

DD-20 mV

Short Circuit Current ISC — ±6 — mA DRVOUT, VDD = 3V

ISC — ±10 — mA DRVOUT, VDD = 5V

Resistor Specifications

Resistance Value of R1 R1 — 8 — KΩResistor between pass gates

and output amplifier input

Resistance Value of R2 R2 — 2 — KΩResistor between LBTN and

LREF inputs and voltage

reference

Electrical Characteristics: Unless otherwise indicated, VDD = +2.7V to +5.5V, and VSS = GND.

Parameters Sym. Min. Typ. Max. Units Conditions

Output Ampl ifier /Filter Speci fic Param e ters

Gain Bandwidth Product GBWP — 1 — MHz

Slew Rate SR — 0.6 — V/µs

Coil Driver Amplifier Parameters

Gain Bandwidth Product GBWP — 17.8 — MHz

Voltage Reference Specific Parameters

Gain Bandwidth Product GBWP — 1 — MHz

Slew Rate SR — 0.6 — V/µs

TABLE 4-1: DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise indicated, TA = +25°C, VDD = +2.7V to +5.5V, VSS = GND.

Parameters Sym. Min. Typ. Max. Units Conditions

MCP2036

TABLE 4-4: TIMING DIAGRAM

TABLE 4-3: TEMPERATURE SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, VDD = +2.7V to +5.5V, and VSS = GND.

Parameters Sym. Min. Typ. Max. Units Conditions

Temperature Ranges

Industrial Temperature

Range

TA-40 — +85 °C

Extended Temperature

Range

TA-40 — +125 °C

Operating Temperature

Range

TA-40 — +125 °C

Storage Temperature Range TA-65 — +150 °C

Thermal Package Resistances

Thermal Resistance,

14L-PDIP

θJA —70 —°C/W

Thermal Resistance,

14L-SOIC

θJA — 120 — °C/W

Thermal Resistance,

16L-QFN

θJA —47 —°C/W

Electrical Characteristics: Unless otherwise indicated, VDD = +2.7V to +5.5V, and VSS = GND.

Parameters Sym. Min. Typ. Max. Units Conditions

Input Clock Frequency FCLK —2 —MHz

Duty Factor D — 50 — %

Device Turn-On Time tON — 4 10 µs Time from CS= 0 to valid

VDETOUT output (Note 1)

Device Power-Down Time tOFF —1— — µsTime from CS= 1 to High-Z

outputs on all drivers

(Note 1)

Note 1: Not tested in production but it is

characterized.

MCP2036

NOTES:

MCP2036

5.0 TYPICAL PERFORMANCE CURV ES

5.1 Performance Plots

FIGURE 5-1: Driver Input Waveforms

MCP2036

FIGURE 5-2: Inductor Driver Transfer Function (Rload = 100 Ohm)

FIGURE 5-3: Pulsed Voltage on Active Key Inductor (I/O Configuration)

MCP2036

FIGURE 5-4: Pulsed voltage on Reference Inductor Series with Active Inductor

MCP2036

FIGURE 5-5: Output Detector Response Time

MCP2036

6.0 PACKAGING INFORMATION

6.1 Package Marking Information

14-Lead PDIP

XXXXXXXXXXXXXX

YYWWNNN

Example

MCP2036-I/P

0610017

14-Lead SOIC (.150”)

XXXXXXXXXXX

YYWWNNN

Example

MCP2036

-I/SL

0610017

XXXXXXX

16-Lead QFN

XXXXXXX

YYWWNNN

MCP2036

Example

-I/MG

0610017

Legend: XX...X Customer-specific information

Y Year code (last digit of calendar year)

YY Year code (last 2 digits of calendar year)

WW Week code (week of January 1 is week ‘01’)

NNN Alphanumeric traceability code

Pb-free JEDEC designator for Matte Tin (Sn)

*This package is Pb-free. The Pb-free JEDEC designator ( )

can be found on the outer packaging for this package.

Note: In the event the full Microchip part number cannot be marked on one line, it will

be carried over to the next line, thus limiting the number of available

characters for customer-specific information.

MCP2036

6.2 Package Details

The following sections give the technical details of the packages.

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 & "%-/0

1+21 & %#%! ))%!%% 

 3%& %!%4") '  %4$%%"%

%%255)))&&54

6% 7+8-

& 9&% 7 7: ;

7!&($ 7 

%  1+

%%  < < 

""44  0 , 0

1 %%  0 < <

!"%!"="% -  , ,0

""4="% -  0 >

:9%  ,0 0 0

%% 9 0 , 0

9"4  >  0

69"="% ( 0 ? 

9)9"="% (  > 

:)* 1 < < ,

NOTE 1

123

A1 b1

  ) +01

MCP2036

!"!##$%&'!"(



  !"#$%!&'(!%&! %(%")%%%"

 *$%+% %

, &  "-"%!"&"$ %!  "$ %!   %#"0&& "

 & "%-/0

1+2 1 & %#%! ))%!%% 

-32 $& '! !)%!%%'$$&%!  

%%255)))&&54

6% 99--

& 9&% 7 7: ;

7!&($ 7 

%  1+

:8%  < < 0

""44  0 < <

%"$$*   < 0

:="% - ?1+

""4="% - ,1+

:9%  >?01+

+&$@%A  0 < 0

3%9% 9  < 

3%% 9 -3

3% IB < >B

9"4   < 0

9"="% ( , < 0

"$% D0B < 0B

"$%1%%& E0B < 0B

NOTE 1

123

hα

  ) +?01

MCP2036

%%255)))&&54

MCP2036

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

MCP2036

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

MCP2036

APPENDIX A: REVISION HISTORY

Revision A (05/2009)

Original release of the document.

Revision B (09/2009)

Replaced the 4X4 QFN Package with the 3X3 QFN

Package; Replaced ML with MG in the 16-Lead QFN

Example; Added SOIC (SL) Land Pattern.

MCP2036

NOTES:

MCP2036

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

PART NO. X/XX XXX

PatternPackageTemperature

Range

Device

Device: MCP2036

VDD range 2.7V to 5.5V

Temperature

Range: I= -40°C to +85°C (Industrial)

E= -40°C to +125°C (Extended)

Package: MG = QFN

SL = SOIC

P=PDIP

Pattern: QTP, SQTP, Code or Special Requirements

(blank otherwise)

Examples:

MCP2036 - I/P 301 = Industrial temp., PDIP package,

QTP pattern #301.

MCP2036

NOTES:

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

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suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,

KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

rfPIC and UNI/O are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,

MXDEV, MXLAB, SEEVAL and The Embedded Control

Solutions Company are registered trademarks of Microchip

Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard,

dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,

ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial

Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified

logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code

Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,

PICtail, PIC32 logo, REAL ICE, rfLAB, Select Mode, Total

Endurance, TSHARC, UniWinDriver, WiperLock and ZENA

are trademarks of Microchip Technology Incorporated in the

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SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2002 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping

devices, Serial EEPROMs, microperiph erals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

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