TC4420

TC4429

TC4420/9-6 10/18/96

© 2001 Microchip Technology Inc.

DS21419A

6A HIGH-SPEED MOSFET DRIVERS

ORDERING INFORMATION

Temperature

Part No.

Logic

Package

Range

TC4420CAT

Noninverting

5-Pin TO-220

0

°C to +70°C

TC4420COA

Noninverting

8-Pin SOIC

0

°C to +70°C

TC4420CPA

Noninverting

8-Pin PDIP

0

°C to +70°C

TC4420EOA

Noninverting

8-Pin SOIC

– 40

°C to +85°C

TC4420EPA

Noninverting

8-Pin PDIP

– 40

°C to +85°C

TC4420IJA

Noninverting

8-Pin CerDIP

–25

°C to +85°C

TC4420MJA

Noninverting

8-Pin CerDIP – 55

°C to +125°C

TC4429CAT

Inverting

5-Pin TO-220

0

°C to +70°C

TC4429COA

Inverting

8-Pin SOIC

0

°C to +70°C

TC4429CPA

Inverting

8-Pin PDIP

0

°C to +70°C

TC4429EOA

Inverting

8-Pin SOIC

– 40

°C to +85°C

TC4429EPA

Inverting

8-Pin PDIP

– 40

°C to +85°C

TC4429IJA

Inverting

8-Pin CerDIP

– 25

°C to +85°C

TC4429MJA

Inverting

8-Pin CerDIP – 55

°C to +125°C

FEATURES

s

Latch-Up Protected ............ Will Withstand >1.5A

Reverse Output Current

s

Logic Input Will Withstand Negative Swing Up

to 5V

s

ESD Protected ..................................................... 4kV

s

Matched Rise and Fall Times ...................... 25nsec

s

High Peak Output Current ......................... 6A Peak

s

Wide Operating Range .......................... 4.5V to 18V

s

High Capacitive Load Drive ...................... 10,000pF

s

Short Delay Time ................................. 55nsec Typ.

s

Logic High Input, Any Voltage ............. 2.4V to VDD

s

Low Supply Current With Logic "1" Input ... 450

µA

s

Low Output Impedance .................................... 2.5

Ω

s

Output Voltage Swing to Within 25mV of Ground

or VDD

APPLICATIONS

s

Switch-Mode Power Supplies

s

Motor Controls

s

Pulse Transformer Driver

s

Class D Switching Amplifiers

Tab is

Connected

to VDD

8-Pin DIP

TO-220-5

TC4420

TC4429

8-Pin SOIC

NOTE: Duplicate pins must both be connected for proper operation.

18

27

36

45

GND

GND

NC

INPUT

VDD

OUTPUT

OUTPUT

VDD

18

27

36

45

GND

GND

NC

INPUT

VDD

OUTPUT

OUTPUT

VDD

TC4420

TC4429

TC4420

TC4429

500

µA

OUTPUT

INPUT

GND

EFFECTIVE

INPUT

C = 38 pF

VDD

300 mV

TC4429

TC4420

4.7V

GENERAL DESCRIPTION

The TC4420/4429 are 6A (peak), single output MOSFET

drivers. The TC4429 is an inverting driver (pin-compatible

with the TC429), while the TC4420 is a non-inverting driver.

These drivers are fabricated in CMOS for lower power, more

efficient operation versus bipolar drivers.

Both devices have TTL-compatible inputs, which can be

driven as high as VDD + 0.3V or as low as – 5V without upset

or damage to the device. This eliminates the need for

external level shifting circuitry and its associated cost and

size. The output swing is rail-to-rail ensuring better drive

voltage margin, especially during power up/power down

sequencing. Propagational delay time is only 55nsec (typ.)

and the output rise and fall times are only 25nsec (typ.) into

2500pF across the usable power supply range.

Unlike other drivers, the TC4420/4429 are virtually

latch-up proof. They replace three or more discrete compo-

nents saving PCB area, parts and improving overall system

reliability.

FUNCTIONAL BLOCK DIAGRAM

PIN CONFIGURATIONS