○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays

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TSZ02201-0R7R0G300110-1-2

© 2013 ROHM Co., Ltd. All rights reserved.

27.Aug.2013 Rev.004

TSZ22111・14・001

www.rohm.com

Voltage Detector IC Series for Automotive

Counter Timer Built-in

CMOS Voltage Detector IC

BD45Exxxx-M series

BD46Exxxx-M series

●General Description

ROHM’s BD45Exxxx-M and BD46Exxxx-M series are

highly accurate, low current consumption Voltage

Detector IC series. Because the counter timer delay

circuit is built into those series, an external capacitor for

the delay time setting is unnecessary. The lineup was

established with two output types (Nch open drain and

CMOS output) and detection voltages range from 2.3V

to 4.8V in increments of 0.1V, so that the series may be

selected according to application.

●Features

 Counter Timer Built-in

 No delay time setting capacitor required

 Ultra-low current consumption

 Two output types (Nch open drain and CMOS output)

 Package SSOP5 is similar to SOT-23-5 (JEDEC)

 AEC-Q100 Qualified

●Key Specifications

 Detection voltage:

2.3V to 4.8V (Typ.)

0.1V steps

 High accuracy detection voltage:

±1.0%

 Ultra-low current consumption:

0.85µA (Typ.)

 Operating temperature range:

-40°C to +105°C

 Three internal, fixed delay time:

50ms

100ms

200ms

●Package

SSOP5

2.90mm x 2.80mm x 1.25mm

●Applications

Circuits using microcontrollers or logic circuits that

require

a

reset

for

automotive

applications

(car

navigation, car audio, meter panel, exterior lamp etc.)

●Typical Application Circuit

●Connection Diagram

●Pin Descriptions

PIN No.

Symbol

Function

1

ER

Manual Reset

2

SUB

3

GND

GND

4

Reset Output

5

Power Supply Voltage

*Connect the substrate to GND.

GND

BD45Exxxx-M

（Noise-filtering

Capacitor）

Micro

controller

（Open Drain Output Type）

BD45Exxxx-M series

（CMOS Output Type）

BD46Exxxx-M series

（Noise-filtering

Capacitor）

GND

BD46Exxxx-M

Micro

controller

SSOP5

TOP VIEW

ER

SUB GND

Lot. No

Marking

Datasheet