Broadcom ACFL-3161T Gate Drive Optocouplers

Broadcom ACFL-3161T Gate Drive Optocouplers are 10A peak, rail-to-rail output automotive R²Coupler™ optocouplers in a compact surface-mountable SO-12 package. These optocouplers provide an isolation voltage of 5kV_rms between input and output channels. The ACFL-3161T optocouplers are designed with high-peak driving current capability to ensure optimum performance for direct driving SiC MOSFET or IGBT. These devices feature a 95ns maximum fast propagation delay, 35ns maximum dead time distortion, 15V to 30V operating supply voltage, and 4mA maximum low supply current. The ACFL-3161T optocouplers come with 8.5mm creepage and 8.3mm clearance. Typical applications include a powertrain DC-DC converter, an EV/PHEV on-board charger, and an automotive isolated MOSFET/IGBT gate drive for inverters and HVAC.

Features

Qualified to AEC-Q100 Grade 1 test guidelines
-40°C to 125°C automotive temperature range
10A peak (typical) high output driving current
Rail-to-rail output voltage
95ns maximum propagation delay
35ns maximum dead time distortion
15V to 30V wide operating supply (V_DD) range
Undervoltage Lock-Out (UVLO) protection with hysteresis
Low supply current allows bootstrap half-bridge topology
100kV/μs at V_CM = 1000V Common Mode Transient Immunity (CMTI)

High noise immunity:
- Direct LED input with low input impedance and low noise sensitivity
Single-channel in SO-12 package with 8.5mm creepage and 8.3mm clearance
Regulatory approvals:
- UL1577 5k V_rms for 1 minute
- CAN/CSA
- IEC 60747-5-5 V_IORM = 1230 V_PEAK