TC429CPA(2002) 데이터 시트보기 (PDF) - Microchip Technology

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TC429CPA
(Rev.:2002)

6A Single High-Speed, CMOS Power MOSFET Driver

Microchip Technology 

M

TC429

6A Single High-Speed, CMOS Power MOSFET Driver

Features

• High Peak Output Current: 6A

• Wide Input Supply Voltage Operating Range:

- 7V to 18V

• High-Impedance CMOS Logic Input

• Logic Input Threshold Independent of Supply

Voltage

• Low Supply Current:

- With Logic ‘1’ Input – 5 mA max.

- With Logic ‘0’ Input – 0.5 mA max.

• Output Voltage Swing Within 25 mV of Ground

or VDD

• Short Delay Time: 75 nsec max

• Available in the Space-Saving 8-Pin SOIC

Package.

• High Capacitive Load Drive Capability:

- tRISE, tFALL = 35 nsec max with

CLOAD = 2500 pF

Applications

• Switch-Mode Power Supplies

• CCD Drivers

• Pulse Transformer Drive

• Class D Switching Amplifiers

Package Types

CERDIP/PDIP/SOIC

VDD 1

INPUT 2

NC 3

GND 4

TC429

8 VDD

7 OUTPUT

6 OUTPUT

5 GND

NC = No Internal Connection

Note: Duplicate pins must both be connected for

proper operation.

General Description

The TC429 is a high-speed, single output, CMOS-level

translator and driver. Designed specifically to drive

highly capacitive power MOSFET gates, the TC429

features a 2.5Ω output impedance and 6A peak output

current drive.

A 2500 pF capacitive load will be driven to 18V in

25 nsec. The rapid switching times with large

capacitive loads minimize MOSFET switching power

losses.

A TTL/CMOS input logic level is translated into an

output voltage swing that equals the supply voltage and

will swing to within 25 mV of ground or VDD. Input volt-

age swing may equal the supply voltage. Logic input

current is under 10 µA, making direct interface to

CMOS/bipolar switch-mode power supply controllers

easy. Input “speed-up” capacitors are not required.

The CMOS design minimizes quiescent power supply

current. With a logic ‘1’ input, power supply current is

5 mA maximum and decreases to 0.5 mA for logic ‘0’

inputs.

For dual output MOSFET drivers, see the TC426/

TC427/TC428 (DS21415), TC4426/TC4427/TC4428

(DS21422) and TC4426A/TC4427A/TC4428A

(DS21423) data sheets.

For non-inverting applications, or applications requiring

latch-up protection, see the TC4420/TC4429

(DS21419) data sheet.

 2003 Microchip Technology Inc.

DS21416C-page 1

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