ACPL-31JT Datasheet, PDF (1/23 Pages) AVAGO TECHNOLOGIES LIMITED – Miller Clamp Sinking Current

ACPL-31JT
Automotive 2.5-Amp MOSFET Gate Drive Optocoupler
with Integrated Desat Over Current Sensing, Miller
Current Clamping and Under Voltage Lock-Out
Feedback
Data Sheet
Description
Features
The Broadcom® automotive 2.5-amp gate drive optocoupler
features fast propagation delay with excellent timing skew
performance. Smart features that are integrated to protect the
MOSFET include desaturation sensing with shutdown
protection and fault feedback, under voltage lockout and
feedback, and active Miller current clamping. This full-featured
and easy-to-implement gate drive optocoupler comes in a
compact, surface-mountable SO-16 package for space-savings.
It is ideally designed for driving power MOSFETs used in AC-DC
and DC-DC converters and satisfies automotive AEC-Q100
semiconductor requirements.
Broadcom R²Coupler™ isolation products provide reinforced
insulation and reliability that delivers safe signal isolation
critical in automotive and high temperature industrial
applications.
 Qualified to AEC-Q100 Grade 1 test guidelines
 Automotive temperature range: –40°C to +125°C
 Common mode rejection (CMR): >50kV/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 maximum.
 Miller clamp sinking current: 1.9A maximum
 Wide operating voltage: 12V to 20V
 Propagation delay: 250 ns maximum
 Dead time distortion: –100 ns to +15 ns
 Integrated fail-safe MOSFET protection
Functional Diagram
 Desat sensing, turn-off protection, and fault feedback
 Under voltage lock-out protection (UVLO) with feedback
Figure 1 ACPL-31JT Functional Diagram


VE VCC2
13 12
15 LED2+
SO-16 package with 8-mm clearance and creepage
Regulatory approvals:
— UL1577, CSA
— EC/EN/DIN EN 60747-5-5
VCC1 3
UVLO
Applications
/UVLO 5
/FAULT 6
VEE1 1
Input
Driver
Output
Driver
Over
Current
 Automotive isolated MOSFET gate drive
14 DESAT
 Automotive DC-DC converter
 Switching power supplies
11 VO _{CAUTION It is advised that normal static precautions be}
AN 7
10 CLAMP
taken in handling and assembly of this
CA 8
Miller Control
component to prevent damage and/or
degradation that may be induced by ESD. The
9 16
VEE2 VEE2
components featured in this data sheet are not
to be used in military or aerospace applications
or environments.
Broadcom
-1-