Datasheet
Temperature Sensor ICs
Low current Thermostat Output
BDJxxx1HFV Series
General Description
BDJxxx1HFV series is a thermostat output temperature
sensor IC with built-in temperature detection element,
constant current circuit, and a high-accuracy reference
voltage source in one chip. Temperature detection can
be realized at ±2.5°C accuracy without the need for a
complicated design. It is the best suited for portable
equipment of micro- and low-current, power down
function, and battery drive. It is possible to use it for a
wide range of applications such as heat detection and
temperature monitors because it provides an analog
output in addition to the thermostat power output.
BDJxxx1HFV series has 6 products at 60°C, 70°C,
75°C, 80°C, 85°C and 90°C detection temperature.
Key Specifications
Power Supply Voltage Range:
2.4V to 5.5V
Supply Current:
Normal Function mode
7.5µA (Typ)
Power Down mode
0.3µA (Typ)
High Accuracy Thermostat:
±2.5°C (Max) @Ta=60°C to +90°C
Sensing Temperature Hysteresis:
10.0°C (Typ)
High Accuracy Analog Output:
±2.5°C (Max) @Ta=-30°C to +100°C
Analog Output Temperature Sensitivity:
-8.2 mV/°C (Typ)
Operating Temperature Range: -30°C to +100°C
Package
Features
Detection Temperature lineup at 60°C, 70°C, 75°C,
80°C, 85°C, 90°C (6 products)
Built-in power down control function.
(Min PD interface Voltage is 1.5V)
Low thermal resistance package (Typ 187°C/W)
ESD Rating of 8kV (HBM)
OS Output Active H
W(Typ) x D(Typ) x H(Max)
Applications
Cellular Phone, Digital Camera, Thermal Protection for
Electrical Equipment (Notebook PC, FPD-TV, etc.)
HVSOF5
1.60mm x 1.60mm x 0.60mm
Typical Application Circuit
Please adjust capacitor according to the noise
condition of the set.
TEMP
1
IREF
VDD
5
VREF
TEMP
SENSOR
+
-
1µF
Please adjust bypass
Capacitor according to
the noise condition of the
set.
0.1µF
GND C
2
PD
3
PD
OS
4
C
Please pull-up of over 10kΩ for
the OS output terminal.
○Product
structure：Silicon monolithic integrated circuit
.
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© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This
product has no designed protection against radioactive rays
1/13
TSZ02201-0M2M0F515120-1-2
06.Nov.2015 Rev.001
BDJxxx1HFV Series
Block Diagram and Pin Configuration
TOP VIEW
TEMP
1
IREF
5
VREF
GND
C
PD
2
C
3
C
PD
TEMP
SENSOR
C
4
OS
VDD
C
C
Pin Descriptions
Pin No.
1
Pin Name
TEMP
Function
Output voltage in inverse proportion to
the Temperature
Ground
Power Down Control
H: Normal Function mode
L: Power Down mode
Digital Thermostat Output
H: Thermostat and Analog Output operation.
L: Power Down state.
Open-Drain Active-High.
Use pull-up resistor of more than 10kΩ.
Comment
Set to Open state or connect to a high input
impedance node (over 10MΩ).
2
GND
3
PD
4
OS
5
VDD
Power Supply Voltage
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© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/13
TSZ02201-0M2M0F515120-1-2
06.Nov.2015 Rev.001
BDJxxx1HFV Series
Absolute Maximum Ratings
(Ta = 25°C)
Parameter
Power Supply Voltage
Input Voltage (Pd)
OS Terminal Voltage
OS Terminal Current
Power Dissipation
Storage Temperature Range
Symbol
V
DD
V
IN
V
OS
I
OS
Pd
Tstg
Rating
-0.3 to +7.0
(Note 1)
-0.3 to +V
DD
+0.3
-0.3 to +7.0
(Note 1)
5.0
0.53
(Note 2)
-55 to +150
Unit
V
V
V
mA
W
°C
(Note 1) However, not exceeding Pd.
(Note 2) When mounted on ROHM standard board, derate by 5.36mW/°C for Ta higher than 25 °C.
Caution:
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions
Parameter
Power Supply Voltage
Operating Temperature Range
Symbol
V
DD
Topr
Rating
Min
2.4
-30
Typ
2.8
-
Max
5.5
+100
Unit
V
°C
Electrical Characteristics
(Unless otherwise specified, V
DD
= 2.8V, Ta = 25°C)
Parameter
Supply Current
Normal Function Mode
Power Down Mode
PD
Input L Voltage
Input H Voltage
PD Leakage Current
Analog Output
TEMP Output Voltage
TEMP Temperature Sensitivity
TEMP Load Regulation
TEMP VDD Regulation
OS Output Open Drain
OS Leakage Current
OS Output Voltage
Radiation hardiness is not designed.
I
L
V
OL
-
-
-
-
1.0
0.4
µA
V
V
OS
=5.0V
I
OS
= 1.0mA
V
TEMP
V
SE
∆V
TEMPRL
∆V
TEMPVDD
1.279
-8.00
-
-
1.300
-8.20
-
-
1.321
-8.40
1.0
4.0
V
mV/°C
mV
mV
Ta = 30°C
Ta = -30°C to +100°C
difference of
I
OUT
: 0µA / 2µA
V
DD
=2.4V to 5.5V
V
IL
V
IH
I
LPD
GND
1.5
-
-
-
-
0.2
V
DD
1.0
V
V
µA
PD=2.8V
I
DD
I
DDPD
-
-
7.5
0.3
12.0
1.0
µA
µA
PD="H"
PD="L"
Symbol
Limit
Min
Typ
Max
Unit
Conditions
Temperature Accuracy
(Unless otherwise specified, V
DD
= 2.8V)
Parameter
Thermostat
Sensing Temperature Accuracy
Sensing Temperature Hysteresis
Analog Output
TEMP Temperature Accuracy
T
TEMP
-
-
±2.5
°C
V
DD
= 2.8V
Ta = -30°C to +100°C
Tacc
Thys
-
7.5
-
10.0
±2.5
12.5
°C
°C
Symbol
Limit
Min
Typ
Max
Unit
Conditions
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© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/13
TSZ02201-0M2M0F515120-1-2
06.Nov.2015 Rev.001
BDJxxx1HFV Series
Typical Performance Curves
15
2.0
Ta=30°C
10
TEMP Voltage : V
TEMP
[V]
Supply Current :
A]
[µA]
IDD [
μ
I
DD
Ta=30°C
1.5
Vtemp [V]
PD="H"
5
1.0
0.5
0
0
1
2
3
4
5
Supply Voltage : V
DD
[V]
VDD [V]
PD="L"
6
7
0.0
0
1
2
3
4
5
6
7
Supply Voltage : V
DD
[V]
VDD [V]
Figure 2. TEMP Voltage vs Supply Voltage
Figure 1. Supply Current vs Supply Voltage
2.0
2
1.5
⊿Vtemp [mV]
∆TEMP Voltage : ∆V
TEMP
[V]
V
DD
=2.8V
TEMP Voltage : V
TEMP
[V]
0
-2
-4
-6
-8
-10
Vtemp[V]
1.0
0.5
V
DD
=2.8V, Ta=30°C
0
1
2
3
4
Output
Iout [uA]
I
OUT
[µA]
Voltage :
5
0.0
-40
-12
-20
0
20
40
60
Temperature : Ta [°C]
Temp[℃]
80
100
Figure 3. TEMP Voltage vs Temperature
Figure 4. TEMP Voltage vs Output Current
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© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/13
TSZ02201-0M2M0F515120-1-2
06.Nov.2015 Rev.001
Embedded System
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