Voltage Detector IC Series
Free Delay Time Setting
CMOS Voltage Detector IC Series
BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
No.09006EBT03
Description
ROHM’s BD52□□G/FVE and BD53□□G/FVE series are highly accurate, low current consumption reset IC series with a
built-in delay circuit. The lineup was established with tow output types (Nch open drain and CMOS output) and detection
voltages range from 2.3V to 6.0V in increments of 0.1V, so that the series may be selected according the application at
hand.
Features
1) Detection voltage: 2.3V to 6.0V (Typ.), 0.1V steps
2) High accuracy detection voltage: ±1.0%
3) Ultra-low current consumption: 0.8µA (Typ.)
4) Nch open drain output (BD52□□G/FVE), CMOS output (BD53□□G/FVE)
5) Compact packages VSOF5: BD52□□FVE, BD53□□FVE
SSOP5: BD52□□G, BD53□□G
Applications
All electronic devices that use micro controllers and logic circuits
Selection Guide
No.
1
Specifications
Output Circuit Format
Detection Voltage
Package
Description
2:Open Drain Output, 3:CMOS Output
Example: Displays VS over a 2.3V to 6.0V range in
0.1V increments.
Part Number : BD5
1
2
3
2
3
G:SSOP5 / FVE:VSOF5
Lineup
Marking
PW
PV
PU
PT
PS
PR
PQ
PP
PN
PM
PL
PK
PJ
PH
PG
PF
PE
PD
PC
Detection
Voltage
6.0V
5.9V
5.8V
5.7V
5.6V
5.5V
5.4V
5.3V
5.2V
5.1V
5.0V
4.9V
4.8V
4.7V
4.6V
4.5V
4.4V
4.3V
4.2V
Part
Number
BD5260
BD5259
BD5258
BD5257
BD5256
BD5255
BD5254
BD5253
BD5252
BD5251
BD5250
BD5249
BD5248
BD5247
BD5246
BD5245
BD5244
BD5243
BD5242
Marking
PB
PA
MV
MU
MT
MS
MR
MQ
MP
MN
MM
ML
MK
MJ
MH
MG
MF
ME
MD
Detection
Voltage
4.1V
4.0V
3.9V
3.8V
3.7V
3.6V
3.5V
3.4V
3.3V
3.2V
3.1V
3.0V
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.3V
Part
Number
BD5241
BD5240
BD5239
BD5238
BD5237
BD5236
BD5235
BD5234
BD5233
BD5232
BD5231
BD5230
BD5229
BD5228
BD5227
BD5226
BD5225
BD5224
BD5223
Marking
RW
RV
RU
RT
RS
RR
RQ
RP
RN
RM
RL
RK
RJ
RH
RG
RF
RE
RD
RC
Detection
Voltage
6.0V
5.9V
5.8V
5.7V
5.6V
5.5V
5.4V
5.3V
5.2V
5.1V
5.0V
4.9V
4.8V
4.7V
4.6V
4.5V
4.4V
4.3V
4.2V
Part
Number
BD5360
BD5359
BD5358
BD5357
BD5356
BD5355
BD5354
BD5353
BD5352
BD5351
BD5350
BD5349
BD5348
BD5347
BD5346
BD5345
BD5344
BD5343
BD5342
Marking
RB
RA
QV
QU
QT
QS
QR
QQ
QP
QN
QM
QL
QK
QJ
QH
QG
QF
QE
QD
Detection
Voltage
4.1V
4.0V
3.9V
3.8V
3.7V
3.6V
3.5V
3.4V
3.3V
3.2V
3.1V
3.0V
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.3V
Part
Number
BD5341
BD5340
BD5339
BD5338
BD5337
BD5336
BD5335
BD5334
BD5333
BD5332
BD5331
BD5330
BD5329
BD5328
BD5327
BD5326
BD5325
BD5324
BD5323
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© 2009 ROHM Co., Ltd. All rights reserved.
1/9
2009.06 - Rev.B
BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
Absolute maximum ratings (Ta=25°C)
Parameter
Power Supply Voltage
Nch Open Drain Output
Output Voltage
CMOS Output
*1*3
SSOP5
Power
*2*3
Dissipation
VSOF5
Operating Temperature
Ambient Storage Temperature
Technical Note
Symbol
VDD-GND
VOUT
Pd
Topr
Tstg
Limits
-0.3 ~ +10
GND-0.3 ~ +10
GND-0.3 ~ VDD+0.3
540
210
-40 ~ +105
-55 ~ +125
Unit
V
V
mW
°C
°C
*1 Use above Ta=25°C results in a 5.4mW loss per degree.
*2 Use above Ta=25°C results in a 2.1mW loss per degree.
*3 When a ROHM standard circuit board (70mm×70mm×1.6mm glass epoxy board) is mounted.
Electrical characteristics (Unless Otherwise Specified Ta=-40 to 105°C)
Parameter
Detection Voltage
Symbol
V
DET
Condition
V
DD
=HL, R
L
=470kΩ
V
DET
=2.3-3.1V
V
DET
=3.2-4.2V
V
DD
=V
DET
-0.2V
V
DET
=4.3-5.2V
V
DET
=5.3-6.0V
V
DET
=2.3-3.1V
V
DET
=3.2-4.2V
V
DD
=V
DET
+2.0V
V
DET
=4.3-5.2V
V
DET
=5.3-6.0V
V
OL
≤0.4V,
Ta=25~105°C, R
L
=470kΩ
V
OL
≤0.4V,
Ta=-40~25°C, R
L
=470kΩ
V
DS
=0.5V V
DD
=1.2V
V
DS
=0.5V V
DD
=2.4V
V
DS
=0.5V V
DD
=4.8V V
DET
=2.3-4.2V
V
DS
=0.5V V
DD
=6.0V V
DET
=4.3-5.2V
V
DS
=0.5V V
DD
=8.0V V
DET
=5.3-6.0V
V
DD
=V
DS
=10V
V
DD
=V
DET
×1.1, V
DET
=2.3-2.6V, R
L
=470kΩ
V
DD
=V
DET
×1.1, V
DET
=2.7-4.2V, R
L
=470kΩ
CT pin Threshold Voltage
V
CTH
V
DD
=V
DET
×1.1, V
DET
=4.3-5.2V, R
L
=470kΩ
V
DD
=V
DET
×1.1, V
DET
=5.3-6.0V, R
L
=470kΩ
Output Delay Resistance
CT pin Output Current
Detection Voltage
Temperature coefficient
Hysteresis Voltage
R
CT
I
CT
V
DD
=V
DET
×1.1 V
CT
=0.5V
V
CT
=0.1V V
DD
=0.95V
V
CT
=0.5V V
DD
=1.5V
*1
*1
*1
Circuit Current when ON
I
DD
1
Circuit Current when OFF
I
DD
2
Operating Voltage Range
‘Low’ Output Current (Nch)
V
OPL
I
OL
‘High’ Output Current (Pch)
Leak Current when OFF
I
OH
Ileak
*1
Min.
Max.
V
DET
(T)
V
DET
(T)
V
DET
(T)
×0.99
×1.01
-
0.80
2.40
-
0.85
2.55
-
0.90
2.70
-
0.95
2.85
-
0.75
2.25
-
0.80
2.40
-
0.85
2.55
-
0.90
2.70
0.95
-
-
1.20
-
-
0.4
1.2
-
2.0
5.0
-
0.7
1.4
-
0.9
1.8
-
1.1
2.2
-
-
-
0.1
V
DD
V
DD
V
DD
×0.30
×0.40
×0.60
V
DD
V
DD
V
DD
×0.30
×0.45
×0.60
V
DD
V
DD
V
DD
×0.35
×0.50
×0.60
V
DD
V
DD
V
DD
×0.40
×0.50
×0.60
5.5
9
12.5
15
40
-
150
240
-
-
V
DET
×0.03
±100
V
DET
×0.05
±360
V
DET
×0.08
Limit
Typ.
Unit
V
µA
µA
V
mA
mA
µA
V
MΩ
µA
ppm/°C
V
V
DET
/∆T Ta=-40°C to 105°C
∆V
S
V
DD
=LHL, R
L
=470kΩ
V
S
(T) : Standard Detection Voltage (2.3V to 6.0V, 0.1V step)
R
L
: Pull-up resistor to be connected between V
OUT
and power supply.
Designed Guarantee. (Outgoing inspection is not done on all products.)
*1 Guarantee is Ta=25°C.
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2/9
2009.06 - Rev.B
BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
Block Diagrams
BD52□□G/FVE
V
DD
Technical Note
BD53□□G/FVE
V
DD
V
OUT
V
OUT
Vref
Vref
GND
CT
GND
CT
Fig.1
TOP VIEW
Fig.2
TOP VIEW
SSOP5
PIN No.
1
2
3
4
5
Symbol
VOUT
VDD
GND
N.C.
CT
Function
Reset Output
Power Supply Voltage
GND
Unconnected Terminal
Capacitor connection terminal for
output delay time
VSOF5
PIN No.
1
2
3
4
5
Symbol
VOUT
SUB
CT
GND
VDD
Function
Reset Output
Substrate*
Capacitor connection terminal for
output delay time
GND
Power Supply Voltage
*Connect the substrate to GND.
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© 2009 ROHM Co., Ltd. All rights reserved.
3/9
2009.06 - Rev.B
BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
Reference Data (Unless specified otherwise, Ta=25°C)
Technical Note
"LOW" OUTPUT CURRENT
：
I
OL
[mA]
CIRCUIT CURRENT
：
I
DD
[μA]
【
BD5242G/FVE
】
1.5
【
BD5242G/FVE
】
15
12
9
6
3
0
0.0
V
DD
=1.2V
V
DD
=2.4V
"HIGH" OUTPUT CURRENT
：
I
OH
[mA]
2.0
18
45
40
35
30
25
20
15
10
5
0
0
1
2
3
4
5
6
DRAIN-SOURCE VOLTAGE
：
V
DS
[V]
V
DD
=6.0V
V
DD
=4.8V
V
DD
=8.0V
【
BD5342G/FVE
】
1.0
0.5
0.0
0
1
2
3
4
5
6
7
8
9 10
V
DD
SUPPLY VOLTAGE
：
V
DD
[V]
0.5
1.0
1.5
2.0
2.5
DRAIN-SOURCE VOLTAGE
：
V
DS
[V]
Fig.3 Circuit Current
Fig.4 “Low” Output Current
Fig.5 “High” Output Current
9
OUTPUT VOLTAGE
：
V
OUT
[V]
OUTPUT VOLTAGE
：
V
OUT
[V]
8
7
6
5
4
3
2
1
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
1.0
CT OUTPUT CURRENT
：
I
CT
[μA]
【
BD5242G/FVE
】
0.8
0.6
0.4
0.2
0.0
0.0
【
BD5242G/FVE
】
450
400
350
300
250
200
150
100
50
0
0.5
1.0
1.5
2.0
2.5
0
1
2
3
4
5
V
DD
SUPPLY VOLTAGE
：
V
DD
[V]
V
DD
SUPPLY VOLTAGE
：
V
DD
[V]
【
BD5242G/FVE
】
Ta=25
℃
Ta=25
℃
V
DD
SUPPLY VOLTAGE
：
V
DD
[V]
Fig.6 I/O Characteristics
Fig.7 Operating Limit Voltage
Fig.8 CT Terminal Current
DETECTION VOLTAGE
：
V
DET
[V]
5.0
Low to high(V
DET
+ΔV
DET
)
4.6
4.2
3.8
3.4
½
½
3.0
-40
High to low(V
DET
)
1.0
CIRCUIT CURRENT WHEN OFF
：
I
DD2
[μA]
【
BD5242G/FVE
】
CIRCUIT CURRENT WHEN ON
：
I
DD1
[μA]
5.4
1.5
【
BD5242G/FVE
】
1.5
【
BD5242G/FVE
】
1.0
0.5
0.5
0
40
80
0.0
-40 -20
0
20
40
60
80
100
0.0
-40 -20
0
20
40
60
80
100
TEMPERATURE
：
Ta[
℃
]
TEMPERATURE
：
Ta[
℃
]
TEMPERATURE
：
Ta[
℃
]
Fig.9 Detection Voltage
Release Voltage
1.5
MINIMUM OPERATING VOLTAGE
：
V
OPL
[V]
Fig.10 Circuit Current when ON
Fig.11 Circuit Current when OFF
RESISTANCE OF CT
：
R
CT
[MΩ]
【
BD5242G/FVE
】
1.0
0.5
0.0
-40 -20
0
20
40
60
80
100
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-40 -20
10000
【
BD5242G/FVE
】
DELAY TIME
：
T
PLH
[ms]
1000
100
10
1
0.1
0.01
【
BD5242G/FVE
】
0
20
40
60
80
100
0.001
0.0001
0.001
0.01
0.1
TEMPERATURE
：
Ta[
℃
]
TEMPERATURE
：
Ta[
℃
]
CAPACITANCE OF CT
：
C
CT
[μF]
Fig.12 Operating Limit Voltage
Fig.13 Ct Terminal Circuit Resistance
Fig.14 Delay Time (TPLH) and
CT Terminal External Capacitance
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4/9
2009.06 - Rev.B
BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
Technical Note
Setting of Detector Delay Time
This detector IC can be set delay time at the rise of V
DD
by the capacitor connected to CT terminal.
Delay time at the rise of V
DD
T
PLH
：Time
until when Vout rise to 1/2 of V
DD
after V
DD
rise up and beyond the release
voltage(V
DET
+∆V
DET
)
T
PLH
= -C
CT
×R
CT
×ln
C
CT
:
V
CTH
:
V
DD
-V
CTH
V
DD
CT pin Externally Attached Capacitance
CT pin Threshold Voltage（P.2 V
CTH
refer.）
R
CT
: CT pin Internal Impedance
（P.2
R
CT
refer.）
Ln : Natural Logarithm
Reference Data of Falling Time (T
PHL
) Output
Examples of Falling Time (T
PHL
) Output
Part Number
tPHL[µs] -40°C
tPHL[µs] ,+25°C
tPHL[µs],+105°C
BD5227G
30.8
30
28.8
BD5327G
26.8
26
24.8
*This data is for reference only.
The figures will vary with the application, so please confirm actual operating conditions before use.
Explanation of Operation
For both the open drain type (Fig.15) and the CMOS output type (Fig.16), the detection and release voltages are used as
threshold voltages. When the voltage applied to the VDD pins reaches the applicable threshold voltage, the VOUT terminal
voltage switches from either “High” to “Low” or from “Low” to “High”. Because the BD52□□G/FVE series uses an open drain
output type, it is possible to connect a pull-up resistor to VDD or another power supply [The output “High” voltage (VOUT) in
this case becomes VDD or the voltage of the other power supply].
V
DD
V
DD
R1
Vref
V
OUT
R2
Q3
R3
GND
CT
GND
CT
R3
Q1
R2
Q3
Q1
R
L
RESET
Vref
V
DD
R1
V
DD
RESET
V
OUT
Q2
Fig.15 (BD52□□Type Internal Block Diagram)
Fig.16 (BD53□□Type Internal Block Diagram)
Timing Waveforms
Example: the following shows the relationship between the input voltage V
DD
, the CT Terminal Voltage V
CT
and the output
voltage V
OUT
when the input power supply voltage V
DD
is made to sweep up and sweep down (The circuits are those in
Fig.15 and 16).
1
When the power supply is turned on, the output is unsettled from
V
DD
after over the operating limit voltage (V
OPL
) until T
PHL
. There fore it is
possible that the reset signal is not outputted when the rise time of
V
DET
+ΔV
DET
⑤
V
DET
VDD is faster than T
PHL
.
2
When V
DD
is greater than V
OPL
but less than the reset release
V
OPL
0V
voltage (V
DET
+∆V
DET
), the CT terminal (V
CT
) and output (V
OUT
)
voltages will switch to L.
V
CT
3
If V
DD
exceeds the reset release voltage (V
DET
+∆V
DET
), then
1/2 V
DD
V
OUT
switches from L to H (with a delay to the CT terminal).
4
If V
DD
drops below the detection voltage (V
DET
) when the power
supply is powered down or when there is a power supply fluctuation,
V
OUT
switches to L (with a delay of T
PHL
).
V
OUT
T
PLH
T
PHL
T
PLH
5
The potential difference between the detection voltage and the
T
PHL
release voltage is known as the hysteresis width (∆V
DET
). The
system is designed such that the output does not flip-flop with power
① ②
③ ④
supply fluctuations within this hysteresis width, preventing
malfunctions due to noise.
Fig.17
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5/9
2009.06 - Rev.B
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