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

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Datasheet

Datasheet

TSZ02201-0H1H0B100480-1-2

© 2012 ROHM Co., Ltd. All rights reserved.

18.DEC.2012 Rev.002

TSZ22111・14・001

BA6406F

www.rohm.com

●Safety measure

1) Reverse connection protection diode

Reverse connection of power results in IC destruction as shown in Fig 13. When reverse connection is possible,

reverse connection protection diode must be added between power supply and Vcc.

Fig.13 Current flow when power is connected reversely

2) About measures of voltage rise by back electromotive force

The voltage of output terminal rises by back electromotive force. The diode D1 of Fig.14 is necessary to divide a power

supply line of motor with small signal line, so that the voltage of the output does not affect a power supply line.

Fig.14 Separation of a power supply line

3) AL output

Fig.15 Protection of AL terminal

AL output is an open collector and requires pull-up resistor.

The IC can be protected by adding resistor R1. An excess of absolute maximum rating, when AL output terminal is

directly connected to power supply, could damage the IC.

Vcc

GND

Vcc

GND

Vcc

GND

Internal circuit impedance high

amperage small

Circuit

block

Each

pin

In normal energization

Large current flows

Thermal destruction

Each

pin

Circuit

block

Reverse power connection

No destruction

Each

pin

Circuit

block

After reverse connection

destruction prevention

Protection

resistor R1

Connector

of board

AL

Pull-up

resistor

Vcc

IC

D1