 2002 Microchip Technology Inc.

DS21424B-page 1

Features

• High Peak Output Current – 1.5A

• Wide Operating Range

- 4.5V to 30V

• High Capacitive Load Drive Capability – 1000pF

in 25nsec

• Short Delay Times – <78nsec Typ.

• Low Supply Current:

- With Logic "1" Input – 2.5mA

- With Logic "0" Input – 300

µA

• Low Output Impedance – 7

Ω

• Latch-Up Protected: Will Withstand >300mA

Reverse Current

• ESD Protected – 4kV

Applications

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Device Selection Table

Package Type

General Description

The TC4431/TC4432 are 30V CMOS buffer/drivers

suitable for use in high-side driver applications. They

will not latch up under any conditions within their power

and voltage ratings. They can accept, without damage

or logic upset, up to 300mA of reverse current (of either

polarity) being forced back into their outputs. All

terminals are fully protected against up to 4kV of

electrostatic discharge.

Under-voltage lockout circuitry forces the output to a

"low" state when the input supply voltage drops below

7V. For operation in lower voltages, disable the lockout

and start-up circuit by grounding pin 3 (LOCK DIS); for

all other situations, pin 3 (LOCK DIS) should be left

floating. The under-voltage lockout and start-up circuit

gives brown out protection when driving MOSFETS.

Part Number

Package

Temp. Range

TC4431COA

8-Pin SOIC

0°C to +70°C

TC4431CPA

8-Pin PDIP

0°C to +70°C

TC4431EJA

8-Pin CERDIP

-40°C to +85°C

TC4431EOA

8-Pin SOIC

-40°C to +85°C

TC4431EPA

8-Pin PDIP

-40°C to +85°C

TC4432COA

8-Pin SOIC

0°C to +70°C

TC4432CPA

8-Pin PDIP

0°C to +70°C

TC4432EJA

8-Pin CERDIP

-40°C to +85°C

TC4432EOA

8-Pin SOIC

-40°C to +85°C

TC4432EPA

8-Pin PDIP

-40°C to +85°C

TC4431

1

2

3

4

5

6

7

8

OUT

GND

IN

LOCK DIS

GND

TC4432

1

2

3

4

5

6

7

8

OUT

GND

IN

GND

2

7

Inverting

Noninverting

OUT

NOTE: SOIC pinout is identical to DIP.

OUT

6

LOCK DIS

2

7

6

8-Pin PDIP/SOIC/CERDIP

1.5A High-Speed 30V MOSFET Drivers