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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: 0.85µA 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

GND ER

Vref

Oscillation circuit

counter timer

Vout

Reset

VDD

GND

Vref

Oscillation circuit

counter timer

1pin : External RESET

2pin : Connect to

3pin : GND

4pin : VOUT

5pin : VDD

(UNIT:mm)

SSOP5(SMP5C2)

(

)

2.9±0.2

1.6

–

0.1

0.2

2.8

0.2

(

)

(

)

(

)(

)

+0.05

0.13

–0.03

0.2MIN

0.95

0.1

1.25MAX

0.05

1.1

0.05

0.42

0.05

–

0.04

BD45XXXG

BD46XXXG

control

Sub, GND

CMOS(BD46XXXG)

Summary of content (5 pages)

PAGE 1
BD45XXXG BD46XXXG Voltage detectors VOLTAGE DETECTOR IC with counter timer 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.
PAGE 2
BD45XXXG BD46XXXG Voltage detectors Absolute Maximum Ratings (Ta=25˚C) Limits – 0.3 ~ + 10 GND – 0.3 ~ + 10 GND – 0.3 ~ VDD + 0.3 GND – 0.3 ~ VDD + 0.3 540 – 40 ~ + 105 – 55 ~ + 125 Symbol Parameter Power supply voltage VDD – GND Output Nch open drain output VOUT voltage CMOS output ER pin input voltage VCT Power dissipation:SSOP5 ∗1 Pd Operating temperature range Topr Tstg Storage temperature range Unit V V V mW ˚C ˚C ∗1 Derating: 5.4mW/˚C for operation above Ta=25˚C.(Mounted on a 70.0mmX70.
PAGE 3
BD45XXXG BD46XXXG Voltage detectors Circuit current "L" output current 18 (BD45281G) 1.5 "H" output current (BD45281G) (BD46281G) 15 15 VDD=6.0V IDD (µA) IOL (mA) IDS (mA) VDD=2.4V 10 1.0 5 0.5 1 2 3 4 5 VDD (V) 6 7 8 9 0.5 0 10 VDD=4.8V 5 2 VDD=1.2V 0 10 1 1.5 VDS (V) 2 2.5 0 1 2 3 VDS (V) 4 5 6 VDS A VDD VDD ER VDD VDD VOUT VDD VOUT ER VDD A GND GND ER A VOUT GND VDS I/O characteristic 9 Detection voltage (BD45421G) 7 5.
PAGE 4
BD45XXXG BD46XXXG Voltage detectors Part number and Marking of samples Voltage Marking Part No. Marking Part No. Marking Part No. Marking Part No. Marking Part No. Marking Part No. 4.8V T0 BD45485 TS BD45481 UJ BD45482 VA BD46485 W2 BD46481 WU BD46482 4.7V T1 BD45475 TT BD45471 UK BD45472 VB BD46475 W3 BD46471 WV BD46472 4.6V T2 BD45465 TU BD45461 UL BD45462 VC BD46465 W4 BD46461 WW BD46462 4.
PAGE 5
Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered.