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The Broadcom® ACFJ-332B-500E driver is a dual-channel, highspeed, rail-to-rail output gate drive optocoupler, which comes in a compact, surface-mountable SO-24 package with two independent isolated channels for space savings. It provides an isolation voltage of 5000 VRMS between input and output channels and functional isolation voltage up to 700 VRMS between two output channels. 

The ACFJ-332B-500E operates with a wide range of input voltage and driver output voltage. It also offers enhanced features such as an input buffer drive with TTL and CMOS compatible logics, an enable pin (EN) to support a system functional safety requirement, programmable dead time between two driver channels, and input power supply under-voltage lockout protection to drive MOSFET/GaN at high-frequency DC-DC and AC-DC converters. 

The Broadcom isolation products provide reinforced insulation and reliability that deliver safe signal isolation critical in high-temperature industrial applications.

Features Of ACFJ-332B-500E

 Industrial temperature range: –40°C to +125°C

 Wide operating supply range:

– VDD1 range: 3.0V to 5.5V

– VDDA and VDDB range: 10V to 25V

 Low supply current allows bootstrap half-bridge topology

 TTL and CMOS compatible inputs

 EN pin for enhanced safety feature

 Programmable dead time

 Under-voltage lockout (UVLO) protection with hysteresis:

– VDD1 UVLO: 2.7V

– VDDA and VDDB UVLO: 8.6V

 Rail-to-rail output driver voltage

 Minimum peak output current: ±2.4A

 Minimum Miller clamp sinking current: 1A

 Maximum propagation delay: 65 ns

 Maximum channel-to-channel skew: 15 ns

 High noise immunity

– Common mode transient immunity (CMTI): 150 kV/μs at VCM = 1500V

 Dual isolated channels in SO-24 package with 8.3-mm creepage and clearance

 3.5-mm creepage between two output drivers

 Worldwide safety approvals:

– UL/cUL 1577 5000 VRMS for 1 minute

– IEC/EN 60747-5-5 VIORM = 1414 VPEAK

Applications Of ACFJ-332B-500E

 Power supply and EV charging

 Renewable energy inverter and storage

 Motor drive for industrial automation and robotics

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