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Product structure

：

Silicon monolithic integrated circuit

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This product is not designed for protection against radioactive rays

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Datasheet

TSZ02201-0R7R0G300020-1-2

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

22.May.2013 Rev.006

TSZ22111

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14

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001

www.rohm.com

Voltage Detector IC Series

Bipolar

Voltage Detector ICs

BD47xx series

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General Description

The

BD47xx

series

is

a

Voltage

Detector

IC,

developed to prevent system errors at transient state,

when the power of CPU or logic circuit switches

ON/OFF or in cases of momentary shut down. These

ICs consist of three terminals (power supply, GND and

reset output) to detect power supply voltages and

outputs reset signals of various systems. These ICs

are ultra-compact and have low current consumption,

making them ideal for portable products.

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Features

High accuracy detection

Low current consumption

Very small package

Open collector “L” reset output

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

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Key Specifications

Detection voltage range:

1.9V to 4.6V (Typ.)

0.1V steps

High accuracy detection voltage:

±1%

Low current consumption:

1.6µA (Typ.)

Operating temperature range:

-40°C to +75°C

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Package

SSOP5

2.90mm x 2.80mm x 1.25mm

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Applications

Circuits using microcontrollers or logic circuits that require

a reset.

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Typical Application Circuit

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Connection Diagram

SSOP5

TOP VIEW

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●

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Pin Descriptions

PIN No.

Symbol

Function

1

N.C.

Unconnected Terminal

2

SUB

Substrate*

3

GND

GND

4

Reset Output

5

Power Supply Voltage

GND

BD47xx series

RESET

GND

CPU

Micro-controller

N.C.

SUB GND

Lot. No

Marking