Applications
VOLTAGE DETECTOR IC
with counter timer
BD45XXXG
BD46XXXG
1/4
Voltage detectors
BD45XXXG
BD46XXXG

BD45XXXG and BD46XXXG are series of high-accuracy detection voltage and low current consumption
VOLTAGE DETECTOR ICs adopting CMOS process. New lineup of 156 types with delay time circuit
have developed. Delay time is fixed in the IC due to the built-in counter timer to require no external
capacitor. Total 156 types of VOLTAGE DETECTOR ICs including BD45XXXG series (Nch open drain
output) and BD46XXXG series (CMOS output), each of which has 26 kinds in every 0.1V step (2.3~4.8V)
and three kinds of delay time (50msec, 100msec, 200msec) have developed.
Every kind of appliances with microcontroller and logic circuit
Features
1) Built-in delay time circuit
(Fixed delay time by the built-in –10% of high-accuracy counter timer)
2) No external capacitor for setting delay time required
3) 3 kinds of delay time: 50msec(Typ.)(BD45XX5G,BD46XX5G)
100msec(Typ.)(BD45XX1G,BD46XX1G)
200msec(Typ.)(BD45XX2G,BD46XX2G)
4) Detection voltage: 2.3V ~ 4.8V 0.1V step
5) High-accuracy detection voltage: –1.0%
6) Ultra low current consumption: 0.85mA typ.
7) Output circuit: Nch open drain(BD45XXXG)

8) Package: SSOP5(SMP5C2)
9) Operating temperature range: -40 C ~ +105 C
BD45XXXG BD46XXXG
Pin No.
SSOP5 ER Sub GND VOUT VDD
1 2 3 4 5
Application Circuit
Vout
VDD
Reset
VDD
VDD
GND ER
Vref
Oscillation circuit
counter timer Vout
Reset
VDD
VDD
GND
Vref
ER
Oscillation circuit
counter timer
1
2
4
5
3
1pin : External RESET

2pin : Connect to

3pin : GND
4pin : VOUT
5pin : VDD
(UNIT:mm)
SSOP5(SMP5C2)
(5)
2.9–0.2
1
.
6
–
0
.
1
+
0
.
2
2
.
8
–
0
.
2
(3)
(4)
(2)(1)
+0.05
0.13
–0.03
0
.
2
M
I
N
0.95
0.1
1
.
2
5
M
A
X
0
.
0
5
–
0
.
0
5
1
.
1
–
0
.
0
5
0.42
+0.05
–0.04
BD45XXXG
BD46XXXG
control
Sub, GND
CMOS(BD46XXXG)