1/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
Small and high accuracy Temperature Sensor IC Series
Detect Temperature Changeable
Thermostat Output Temperature Sensor ICs
BDF□□□0G Series
●Description
Low quiescent current (16µA), high accuracy thermostat (temperature switch) ICs. Built in temperature sensor, reference
voltage regulator, D/A converter, and comparator. Detecting temperature by itself, OS terminal state is changed at logically.
Open Drain Output ( Active L ) is available in BDF□□□0G series.
●Features
1) Detection Temperature Range -10～+130℃ by 8 products.
2) ±2.5℃ Step Selectable Detection Temperature with C1 and C2.
3) Hysteresis Temperature ( typically 10℃ )
4) High Accuracy Analog Output ( typically ±3.5℃@Ta=30℃ )
5) Analog Output Temperature Sensitivity ( typically -10.8mV/℃ )
6) Low Supply Current ( typically 16µA )
7) Small Package ( typically 2.90mm×2.80mm×1.25mm )
8) ESD Rating 8kV ( HBM )
9) Excellent Ripple Rejection Characteristic
●Applications
Thermal Protection for Electrical Equipment (NoteBook PC, Cell phone, FPD-TV, etc.) FAN Control for Thermal Management
●Products Line up
BDF □□□ 0 G
Detection Temperature Output Format Package
(Center Temperature) (OpenDrain, Active Low) (SSOP6)
120:120℃ 040: 40℃
110:110℃ 030: 30℃
100:100℃ 020: 20℃
090: 90℃ 010: 10℃
080: 80℃ 000: 0℃
070: 70℃ 910:-10℃
060: 60℃ 920:-20℃
050: 50℃
Temperature / Output Format Table
C1, C2 status description ( L : Low, O : Open, H : High )
Product
Name
Detection Temperature (℃) OS Output
Format Marking
C1 L L L H H H O O O
C2 L H O L H O L H O
BDF1200G 110.0 112.5 115.0 117.5 120.0 122.5 125.0 127.5 130.0
Open
Drain
Active
Low
F0
BDF1000G 90.0 92.5 95.0 97.5 100.0 102.5 105.0 107.5 110.0 F4
BDF0800G 70.0 72.5 75.0 77.5 80.0 82.5 85.0 87.5 90.0 FA
BDF0600G 50.0 52.5 55.0 57.5 60.0 62.5 65.0 67.5 70.0 FE
BDF0400G 30.0 32.5 35.0 37.5 40.0 42.5 45.0 47.5 50.0 FJ
BDF0200G 10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5 30.0 FN
BDF0000G -10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 FS
BDF9200G -30.0 -27.5 -25.0 -22.5 -20.0 -17.5 -15.0 -12.5 -10.0 FW
No.09047EAT04
BDF□□□0G Series
Technical Note
2/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Absolute Maximum Ratings ( Ta = 25℃ )
Parameters Symbol Limit Unit
Power Supply Voltage VDD -0.3 to 7.0*1 V
Input Voltage ( C1, C2 ) VIN -0.3 to VDD+0.3 V
Input Current ( C1, C2 ) IIN -1.0, +0.1 mA
OS terminal Voltage VOS -0.3 to 7.0 V
OS terminal Current IOS 5.0 mA
Power dissipation Pd 540※2 mW
Storage Temperature Range Tstg -55 to 150 ℃
*1. Not to exceed Pd
*2. Reduced by 5.40mW for each increase in Ta of 1℃ over 25℃( mounted on 70mm×70mm×1.6mm Glass-epoxy PCB )
●Recommended Operating Condition
Parameters Symbol Min. Typ. Max. Unit
Power Supply Voltage VDD 2.9 3.0 5.5 V
Operating Temperature Range Topr -30 - 130 ℃
●Temperature Accuracy ( unless otherwise specified, VDD = 3.0V )
Parameter Symbol
Limit Unit Conditions
Min. Typ. Max.
Thermostat ( Temperature Switch )
Detection Temperature Accuracy Tacc - 0 ±4.0
±5.0 ℃ Ta = -30℃～115℃
Ta = ～130℃
Detection Temperature Hysteresis Thys 7.5 10.0 12.5 ℃
Analog Output
VTemp Temperature Accuracy TTe mp - - ±3.5 ℃ Ta = 30℃
●Electrical Characteristics ( unless otherwise specified, VDD = 3.0V, Ta = 25℃ )
Parameter Symbol
Limit Unit Conditions
Min. Typ. Max.
Supply Current IDD - 16.0 20.0 µA C1, C2 = 3.0V
Analog Output
VTemp Output Voltage VTe mp 1.716 1.753 1.790 V Ta = 30℃
VTemp Temperature Sensitivity VSE -10.28 -10.68 -11.08 mV/℃Ta = -30 to 100℃
VTemp Load Regulation ⊿VTemp RL - - 1 mV difference of IOUT : 0µA / 2µA
OS Output Open Drain
OS Leakage Current IL - - 1.0 µA OS : 5.0V
OS Output Voltage VOL - - 0.4 V IINOS = 1.2mA
C1, C2
Input L Voltage VIL GND - 0.6 V
Input H Voltage VIH 2.4 - VDD V
*Radiation hardiness is not designed.
BDF□□□0G Series
Technical Note
3/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Package Outline
●Pin Description
Pin No. Pin Name Function Comment
1 C2 Detection temperature setting Refer to 2/7 page for the temperature set.
(Temperature / Output Format Table )
2 GND Ground
3 VTemp
Output voltage in inverse proportion to the temperature
( Typ. -10.68mV/℃)
Set the Open state or
Connect high impedance input node.
4 VDD Power Supply
5 C1 Detection temperature setting Refer to 2/7 page for the temperature set.
(Temperature / Output Format Table )
6 OS Digital thermostat output Open Drain type
Use the pull-up resistor over 10kΩ.
SSOP6 ( Unit：mm )
Lot No.
Product Type 5
6
BDF□□□0G Series
Technical Note
4/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Equivalence Circuit
●Block Diagram
C1, C2 OS
VTemp
VDD
GND
Please don’t connect the pull-down resistor
Please connect the pull-up resistor over 10kΩ.
GND
OS
C1, C2
VDD
GND
VTemp
VDD
C2
VTemp
GND
OS
+
-
1
2
3
5
4
Vref
Temp
Sensor Iref
Out 6
C1
BDF□□□0G Series
Technical Note
5/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Functional Diagram ( ex. Detection Temperature 100℃ )
OS Output Voltage ( VOS ) [V]
Vos
Temperature Hysteresis
( 10℃ Typical )
110 90
70 50
10 130
-30 30
-10 -50
Temperature [℃]
0
Analog Output Voltage ( VTemp ) [V]
1.0
1
VTem p @30℃
( 1.753V Typical )
TemperatureSensitivity
( -10.68mV/℃ Typical )
110 90
70 50
10 130
-30 30
-10 -50
Temperature [℃]
1.5
2.0
2.5
3.0
0.5
BDF□□□0G Series
Technical Note
6/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Reference Data
Fig1. VTemp Voltage vs. Temperature
(Temperature Sensitivity)
Fig2. Supply Current vs. Supply Voltage
Fig3. VTemp Voltage vs. Supply Voltage Fig4. VTemp Voltage vs. Output Current
Fig5. OS Output Voltage vs. Load Current
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 5 10 15 20 25
IOS [mA]
VOS[V]
VDD=3V, Ta=25℃
-200
-175
-150
-125
-100
-75
-50
-25
0
25
012345
ITemp [uA]
ΔVTemp [mV]
VDD=3V, Ta=25℃
0.0
0.5
1.0
1.5
2.0
2.5
3.0
012345678
VDD [V]
VTemp [V]
Ta=25℃
0
5
10
15
20
25
012345678
VDD [V]
IDD [uA]
Ta=25℃
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-80 -40 0 40 80 120 160
Temperature [℃]
VTemp [V]
VDD=3V
BDF□□□0G Series
Technical Note
7/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Notes for use
1) Absolute Maximum Ratings
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can
break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any
special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety
measures including the use of fuses, etc.
2) GND voltage
Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state.
3) Pin short and mistake fitting
When mounting the IC on the PCB, pay attention to the orientation of the IC. If there is a placement mistake, the IC may be
burned up.
4) Operation in strong electric field
Be noted that using ICs in the strong electric field can malfunction them.
5) Mutual impedance
Use short and wide wiring tracks for the power supply and ground to keep the mutual impedance as small as possible.
Use a capacitor to keep ripple to a minimum.
BDF□□□0G Series
Technical Note
8/8
www.rohm.com 2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
●Ordering part number
B D F 0 0 0 0 G - T R
Part No. Part No.
0000 0100 0200
0300 0400 0500
0600 0700 0800
0900 1000 1100
1200 9100 9200
Package
G: SSOP6
Packaging and forming specification
TR: Embossed tape and reel
(SSOP6)
(Unit : mm)
SSOP6
0.1 S
S
0.2Min.
0.13 +0.05
−0.03
4°+6°
−4°
123
654
2.9±0.2
2.8±0.2
1.6 +0.2
−0.1
0.95
1.1±0.050.05±0.05
1.25Max.
0.42 +0.05
−0.04
Direction of feed
Reel
∗
Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Embossed carrier tapeTape
Quantity
Direction
of feed
The direction is the 1pin of product is at the upper right when you hold
reel on the left hand and you pull out the tape on the right hand
3000pcs
TR
()
1pin
R0039
A
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
Notice
ROHM Customer Support System
http://www.rohm.com/contact/
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specied herein is subject to change for improvement without notice.
The content specied herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specied in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specied herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specied in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, ofce-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specied in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, re or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, re control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,
fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of
any of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specied herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.