Broadcom ACPL-054L Dual-Channel Digital Optocoupler

Broadcom ACPL-054L dual-channel 1MBd digital optocoupler uses an insulating layer between the LED and an integrated photon detector to provide electrical insulation between input and output. Separate connections for the photodiode bias and output transistor collector increase the speed up to a hundred times over that of a conventional photo-transistor coupler by reducing the base-collector capacitance. 

Broadcom ACPL-054L digital optocoupler supports a wide voltage range from 2.7V to 24V and has an increased common mode transient immunity of 15kV/µs minimum at VCM=1500V over a wide temperature range of -40° to +105°C. The current transfer ratio (CTR) is 120% typical at IF= 3mA. The Broadcom Technologies ACPL-054L digital optocoupler can be used in any TTL/CMOS, TTL/LSTTL, or wide bandwidth analog applications.


  • 2.7V to 24V Wide supply voltage Vcc
  • 3mA Low drive current
  • Open-collector output
  • TTL compatible
  • Compact SO-5, SO-8, stretched SO-6, and stretched SO-8 package
  • 15kV/μs high common-mode rejection at VCM = 1500V
  • –40°C to +105°C Guaranteed performance from temperature range
  • 1μs max at 5V Low propagation delay
  • Worldwide safety approval:
    • UL1577 recognized, 3750Vrms/1 min for ACPL-M50L/054L, 5000Vrms/1 min for ACPL-W50L/K54L
    • CSA Approval
    • IEC/EN/DIN EN 60747-5-5 Approval for reinforced insulation


  • Drives/Inverters
  • Galvanic isolation on one single PCB

Functional Diagram

Location Circuit - Broadcom ACPL-054L Dual-Channel Digital Optocoupler
Published: 2010-09-15 | Updated: 2022-03-11