TC4403EPA【PDF 1/14 页】IC DRIVER FLOATNG LOAD 1.5A 8DIP

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M TC4403

1.5A High-Speed, Floating Load Driver

Features

General Description

Low Quiescent Current: 300 μ A Max

Capacitive Inputs With 300mV Hysteresis

Both Inputs Must Be Driven to Drive Load

Low Output Leakage

High Peak Current Capability

Fast Output Rise Time

Outputs Individually Testable

The TC4403 is a modified version of the TC4425 driver,

intended to drive floating or isolated loads requiring

high-current pulses. The load is intended to be con-

nected between the outputs without other reference to

supply or ground. Then, only when both logic inputs

and the V DD input are energized, is power supplied to

the load. This construction allows the implementation

of a wide variety of redundant input controllers.

Applications

? Isolated Load Drivers

? Pulsers

? Safety Interlocks

Device Selection Table

The low OFF-state output leakage and independence

of the two half-circuits permit a wide variety of testing

schemes to be utilized to assure functionality. The high

peak current capability, short internal delays, and fast

output rise and fall times ensure that sufficient power

will be available to the load when it is needed. The TTL

and CMOS compatible inputs allow operation from a

wide variety of input devices. The ability to swing the

Part Number

TC4403CPA

TC4403EPA

TC4403MJA

Package

8-Pin PDIP

8-Pin CERDIP

Temp. Range

0°C to +70°C

-40°C to +85°C

-55°C to +125°C

inputs negative without affecting device performance

allows negative biases to be placed on the inputs for

greater safety. In addition, the capacitive nature of the

inputs allows the use of series resistors on the inputs

for extra noise suppression.

The TC4403 is built for outstanding ruggedness and

Package Type

8-Pin PDIP/CERDIP

reliability in harsh applications. Input voltage excur-

sions above the supply voltage or below ground are

clamped internally without damaging the device. The

output stages are power MOSFETs with high-speed

IN (V DD )

OUT (V DD )

body diodes to prevent damage to the driver from

inductive kickbacks.

GND

IN (GND)

TC4403

V DD

OUT (GND)

? 2002 Microchip Technology Inc.

DS21417B-page 1

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