ACPL-K43T, ACPL-K44T

Optocoupler in a Stretched 8-Pin Surface Mount Plastic Package

Data Sheet

of this component to prevent damage and/or degradation which may be induced by ESD.

Lead (Pb) Free

RoHS 6 fully

compliant

RoHS 6 fully compliant options available;

-xxxE denotes a lead-free product

Description

The ACPL-K43T is a single channel, high temperature,

high CMR, high speed digital optocoupler in an eight lead

miniature footprint specifically used in the automotive

applications. The ACPL-K44T is a dual channel equiva-

lent of the ACPL-K43T. Both products are available in the

stretched SO-8 package outline, designed to be compat-

ible with standard surface mount processes.

This digital optocoupler uses an insulating layer between

the light emitting diode and an integrated photo detector

to provide electrical insulation between input and output.

Separate connections for the photodiode bias and output

transistor collector increase the speed up to a hundred

times over that of a conventional photo-transistor coupler

by reducing the base-collector capacitance.

forced insulation and reliability that delivers safe signal

isolation critical in automotive and high temperature

industrial applications.

Functional Diagram

Note: The connection of a 0.1

F bypass capacitor between pins 5 and 8

is recommended.

Features

 High Temperature and Reliability low speed digital

interface for Automotive Application

mA

1500 V

 Compact, Auto-Insertable Stretched SO8 Packages

 Qualified to AEC Q100 Grade 1 Test Guidelines

 Wide Operating Temperature Range: -40° C to +125° C

 High Speed: 1 MBd

 Worldwide Safety Approval:

– CSA Approval

– IEC/EN/DIN EN 60747-5-5

Applications

 Automotive IPM Driver for DC-DC converters and

motor inverters

 Status Feedback and Wake-Up Signal Isolation

 CANBus and SPI Communications Interface

 High Temperature Digital/Analog Signal Isolation

Truth Table

LED

Vo

ON

LOW

OFF

HIGH

7

1

2

3

45

6

8

ANODE

CATHODE

NC

NC

NC

GND

ACPL-K43T

7

1

2

3

45

6

8

GND

ACPL-K44T