ACPL-K43T, ACPL-K44T
Automotive R2CouplerTM Wide Operating Temperature 1MBd Digital
Optocoupler in a Stretched 8-Pin Surface Mount Plastic Package
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
Features
The ACPL-K43T is a single channel, high temperature, High Temperature and Reliability low speed digital
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.
interface for Automotive Application
Ultra low drive for status feedback at I = 0.8 mA or 1.5
F
mA
30 kV/s (Typ) High Common-Mode Rejection at V
=
CM
1500 V
Compact, Auto-Insertable Stretched SO8 Packages
Qualified to AEC Q100 Grade 1 Test Guidelines
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.
Wide Operating Temperature Range: -40° C to +125° C
High Speed: 1 MBd
Low Propagation Delay: 1 s max. at I = 10 mA
F
Worldwide Safety Approval:
2
– UL 1577 approval, 5 kV /1 min.
RMS
Avago R Coupler isolation products provide with rein-
forced insulation and reliability that delivers safe signal
isolation critical in automotive and high temperature
industrial applications.
– CSA Approval
– IEC/EN/DIN EN 60747-5-5
Applications
Functional Diagram
Automotive IPM Driver for DC-DC converters and
ACPL-K43T
ACPL-K44T
motor inverters
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
ANODE
CATHODE
NC
VCC
VO
ANODE1
CATHODE1
CATHODE2
ANODE2
VCC
Status Feedback and Wake-Up Signal Isolation
CANBus and SPI Communications Interface
High Temperature Digital/Analog Signal Isolation
VO1
VO2
GND
NC
NC
GND
Truth Table
LED
ON
Vo
LOW
OFF
HIGH
Note: The connection of a 0.1 F bypass capacitor between pins 5 and 8
is recommended.
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.