ACPL-344JT Datasheet, PDF (1/17 Pages) AVAGO TECHNOLOGIES LIMITED – Miller-Current Clamping

ACPL-344JT
Automotive 2.5A Gate-Drive Optocoupler
with Integrated IGBT Desat Overcurrent Sensing,
Miller-Current Clamping, and Under-Voltage Lockout Feedback
Data Sheet
Description
The Avago Technologies Automotive 2.5A Gate-Drive
Optocoupler features fast propagation delay with
excellent timing-skew performance. Smart features that
are integrated to protect the IGBT include IGBT
desaturation sensing with soft-shutdown protection
and fault feedback, under-voltage lockout and feedback,
and active Miller-current clamping. This full-featured
and easy-to-implement IGBT gate-drive optocoupler
comes in a compact, surface-mountable SO-16 package
for space savings. It is suitable for traction power-train
inverter, power converter, battery charger, air-con, and
oil-pump motor drives in HEV and EV applications and
satisfies automotive AEC-Q100 semiconductor
requirements.
Avago's R²Coupler isolation products provide reinforced
insulation and reliability that deliver safe-signal isolation
critical in automotive and high-temperature industrial
applications.
Functional Diagram
VE VCC2
13 12
VCC1 ³
UVLO
/UVLO 5
/FAULT 6
VEE1 1
NC 2
NC 4
AN 7
CA 8
Input
Driver
Output
Driver
Over
Current
SS Control
Miller Control
Figure 1. ACPL-344JT Functional Diagram.
9 16
VEE2 VEE2
15 LED2+
14 DESAT
11 VO
10 SSD/
CLAMP
Features
• Qualified to AEC-Q100 Grade 1 Test Guidelines
• Automotive temperature range: –40°C to +125°C
• Common Mode Rejection (CMR): >50 kV/μs at
V_CM = 1500V
• High Noise Immunity:
– Miller-Current Clamping
– Direct LED input with low-input impedance and
low-noise sensitivity
– Negative Gate Bias
• Peak output current: 2.5A max.
• Miller Clamp-Sinking Current: 1.9A max.
• Wide Operating Voltage: 15V to 25V
• Propagation delay: 250 ns max.
• Integrated fail-safe IGBT protection
– Desat sensing, 'Soft' IGBT turn-off, and Fault
Feedback
– Under-Voltage Lock-Out protection (UVLO) with
Feedback
• SO-16 package with 8 mm clearance and creepage
• Regulatory approvals:
– UL1577, 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
• Industrial inverters for power supplies and motor
controls
• Uninterruptible power supplies (UPS)
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.