ACPL-32JT
Automotive 2.5 Amp Gate Drive Optocoupler with Integrated Flyback
Controller for Isolated DC-DC Converter, Integrated IGBT Desat
Overcurrent Sensing, Miller Current Clamping and UVLO Feedback
Data Sheet
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.
Features
• Qualied to AEC-Q100 Grade 1 Test Guidelines
• Automotive temperature range: -40 °C to +125 °C
• Integrated yback controller for isolated DC-DC
converter
• Regulated Output Voltage: 20 V
• Peak output current: 2.5 A max.
• Miller Clamp Sinking Current: 1.7 A max.
• Wide Input Voltage Range: 8 V to 18 V
• Common-Mode Rejection (CMR): > 30 kV/ms at V
CM
=
1500 V
• Propagation delay: 250 ns max.
• Integrated fail-safe IGBT protection
– Desat sensing, “Soft” IGBT turn-o and Fault
Feedback
– Under Voltage Lock-Out (UVLO) protection with
Feedback
• High Noise Immunity
– Miller Current Clamping
– Direct LED input with low input impedance and low
noise sensitivity
– Negative Gate Bias
• SO-16 package with 8 mm clearance and creepage
• Regulatory approvals:
– UL 1577, CSA
– IEC/EN/DIN EN 60747-5-5
Applications
• Automotive Isolated IGBT/MOSFET Inverter gate drive
• Automotive DC-DC Converter
• AC and brushless DC motor drives
• Hybrid and Plug-in hybrid powertrain inverter
• Uninterruptible Power Supplies (UPS)
Description
Avago's Automotive 2.5 Amp Gate Drive Optocoupler
features integrated yback controller for isolated DC-DC
converter, IGBT desaturation sensing and fault feedback,
Under-Voltage LockOut (UVLO) with soft-shutdown and
fault feedback and active Miller current clamping. The
fast propagation delay with excellent timing skew per-
formance enables excellent timing control and eciency.
This full feature optocoupler comes in a compact, surface-
mountable SO-16 package for space-savings, is suitable
for traction power train inverter, power converter, battery
charger, air-conditioner and oil pump motor drives in HEV
and EV applications.
Avago R
2
Coupler isolation products provide reinforced
insulation and reliability that delivers safe signal isolation
critical in automotive and high temperature industrial ap-
plications.
Functional Diagram
Figure 1. ACPL-32JT Functional Diagram
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
VEE2
LED2+
DESAT
VCC2
VEE2
VO
VCC1
COMP
VEE1
CA
/FAULT
SSD/
CLAMP
/UVLO
AN
OSC
R
S
UVLO
Over
Current
Input Driver
Output Driver
SW
SSD Control
Miller Control
Logic
Control
VE
