Broadcom ACNT-H61LC

The ACNT-H61LC is a low-power digital optocoupler of comparative tracking index, CTI 600 V, Material Group I mold compound in 15 mm wide creepage and 14.2 mm clearance that combines a light-emitting diode (LED) and an integrated high gain photodetector designed to provide an optically isolated interface for system control and data communications interface. The device is extremely low power, consuming up to 2 mA of supply current across a wide temperature range. The LED forward current operates from 4.5 mA.

Key features

• Comparative tracking index, CTI: 600 V (Material Group I)
• Low power supply current (IDD): 2 mA (max)
• Low input current capability: 4.5 mA (min)
• 20 kV/µs min common mode rejection (CMR) at V_CM = 1000 V

Additional features

• High-speed interface: 10 MBd min
• Guaranteed AC and DC performance over wide temperature:
  • From -40 °C to +105 °C
• CMOS photodetector output
• 15 mm Stretched SO8 package
• Internal clearance: 0.5 mm
• Safety and regulatory approvals:
  • UL 1577 recognized: 7.500 V_RMS for 1 minute
  • CSA approved
  • IEC/EN 60747-5-5 approved for reinforced insulation: V_IORM = 2.262 V_PK; V_IOTM = 12.000 V_PK

Applications

• Communication Interface: RS485, CAN Bus
• Digital Isolation for A/D, D/A converstion
• High voltage power systems (i.e., 690 VAC drives)
• Renewable energy Inverters (i.e., 1500 V PV)
• Medical imaging and patient monitoring
• Overvoltage CAT IV isolation (i.e., utility test equipment)

Additional Info

The ACNT-H61LC supports either 3.3 or 5 V supply voltage with guaranteed AC and DC performance from -40 °C to +105 °C. The internal Faraday shield provides a minimum of 20 kV/µs CMR minimizing errors in a noisy environment. ACNT-H61LC allows reduction of regulatory standard's creepage requirement. It is well suited for isolated communication logic interface and control in high-voltage power systems such as high-voltage power systems eg. 1500V PV systems, 690Vac drives, renewable inverters, and medical equipment.