Small and high accuracy Temperature Sensor IC Series
Detect Temperature Changeable
Thermostat Output Temperature Sensor ICs
BDF□□□0G Series
No.09047EAT04
●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 -10½+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
□□□
Detection Temperature
(Center Temperature)
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℃
0
Output Format
(OpenDrain, Active Low)
G
Package
(SSOP6)
Product
Name
C1
C2
BDF1200G
BDF1000G
BDF0800G
BDF0600G
BDF0400G
BDF0200G
BDF0000G
BDF9200G
L
L
110.0
90.0
70.0
50.0
30.0
10.0
-10.0
-30.0
Temperature / Output Format Table
C1, C2 status description ( L : Low, O : Open, H : High )
Detection Temperature (℃)
L
L
H
H
H
O
O
O
H
O
L
H
O
L
H
O
112.5 115.0 117.5 120.0 122.5 125.0 127.5 130.0
92.5
95.0
97.5
100.0 102.5 105.0 107.5 110.0
72.5
75.0
77.5
80.0
82.5
85.0
87.5
90.0
52.5
55.0
57.5
60.0
62.5
65.0
67.5
70.0
32.5
35.0
37.5
40.0
42.5
45.0
47.5
50.0
12.5
15.0
17.5
20.0
22.5
25.0
27.5
30.0
-7.5
-5.0
-2.5
0.0
2.5
5.0
7.5
10.0
-27.5 -25.0 -22.5 -20.0 -17.5 -15.0 -12.5 -10.0
OS Output
Format
Marking
F0
F4
FA
FE
FJ
FN
FS
FW
Open
Drain
Active
Low
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© 2009 ROHM Co., Ltd. All rights reserved.
1/8
2009.06 - Rev.A
BDF□□□0G Series
●Absolute
Maximum Ratings
( Ta = 25℃ )
Parameters
Power Supply Voltage
Input Voltage ( C1, C2 )
Input Current ( C1, C2 )
OS terminal Voltage
OS terminal Current
Power dissipation
Storage Temperature Range
Symbol
V
DD
V
IN
I
IN
V
OS
I
OS
Pd
T
stg
Limit
-0.3 to 7.0
*1
-0.3 to V
DD
+0.3
-1.0, +0.1
-0.3 to 7.0
5.0
540
※
2
-55 to 150
Unit
V
V
mA
V
mA
mW
℃
Technical Note
*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
Power Supply Voltage
Operating Temperature Range
Symbol
V
DD
Topr
Min.
2.9
-30
Typ.
3.0
-
Max.
5.5
130
Unit
V
℃
●Temperature
Accuracy
( unless otherwise specified, V
DD
= 3.0V )
Parameter
Thermostat ( Temperature Switch )
Detection Temperature Accuracy
Detection Temperature Hysteresis
Analog Output
VTemp Temperature Accuracy
Tacc
Thys
T
Temp
-
7.5
-
0
10.0
-
±4.0
±5.0
12.5
±3.5
℃
℃
℃
Ta = 30℃
Ta = -30℃½115℃
Ta =
½130℃
Symbol
Min.
Limit
Typ.
Max.
Unit
Conditions
●Electrical
Characteristics
( unless otherwise specified, V
DD
= 3.0V, Ta = 25℃ )
Limit
Parameter
Symbol
Min.
Typ.
Max.
Supply Current
I
DD
-
16.0
20.0
Analog Output
VTemp Output Voltage
V
Temp
1.716 1.753 1.790
VTemp Temperature Sensitivity
V
SE
-10.28 -10.68 -11.08
VTemp Load Regulation
⊿V
Temp
RL
-
-
1
OS Output Open Drain
-
-
1.0
OS Leakage Current
I
L
OS Output Voltage
V
OL
-
-
0.4
C1, C2
GND
-
0.6
Input L Voltage
V
IL
Input H Voltage
V
IH
2.4
-
VDD
*Radiation hardiness is not designed.
Unit
µA
Conditions
C1, C2 = 3.0V
V
Ta = 30℃
mV/℃ Ta = -30 to 100℃
mV
difference of I
OUT
: 0µA / 2µA
µA
V
V
V
OS : 5.0V
I
INOS
= 1.2mA
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© 2009 ROHM Co., Ltd. All rights reserved.
2/8
2009.06 - Rev.A
BDF□□□0G Series
●Package
Outline
Technical Note
Product Type
6
5
Lot No.
SSOP6 ( Unit：mm )
●Pin
Description
Pin No.
1
2
3
4
5
6
Pin Name
C2
GND
VTemp
VDD
C1
OS
Function
Detection temperature setting
Ground
Output voltage in inverse proportion to the temperature
( Typ. -10.68mV/℃)
Power Supply
Detection temperature setting
Digital thermostat output
Refer to 2/7 page for the temperature set.
(Temperature / Output Format Table )
Open Drain type
Use the pull-up resistor over 10kΩ.
Set the Open state or
Connect high impedance input node.
Comment
Refer to 2/7 page for the temperature set.
(Temperature / Output Format Table )
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© 2009 ROHM Co., Ltd. All rights reserved.
3/8
2009.06 - Rev.A
BDF□□□0G Series
●Equivalence
Circuit
C1, C2
VDD
OS
Technical Note
OS
C1, C2
GND
GND
V
Temp
VDD
Please connect the pull-up resistor over 10kΩ.
VTemp
GND
Please don’t connect the pull-down resistor
●Block
Diagram
C2
1
Out
6 OS
GND
2
Vref
+
-
5
C1
VTemp
3
Temp
Sensor
Iref
4 VDD
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© 2009 ROHM Co., Ltd. All rights reserved.
4/8
2009.06 - Rev.A
BDF□□□0G Series
●Functional
Diagram
( ex. Detection Temperature 100℃ )
Technical Note
3.0
Analog Output Voltage ( VTemp ) [V]
2.5
2.0
1.5
1.0
0.5
-50
-30
-10
10
30
50
70
90
110
130
V
Temp
@30℃
( 1.753V Typical )
1
TemperatureSensitivity
( -10.68mV/℃ Typical )
Temperature [℃]
OS Output Voltage ( VOS ) [V]
Vos
Temperature Hysteresis
( 10℃ Typical )
0
-50
-30
-10
30
50
10
Temperature [℃]
70
90
110
130
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© 2009 ROHM Co., Ltd. All rights reserved.
5/8
2009.06 - Rev.A
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