HCPL-J312#300

Isolators - Gate Drivers Overview

The HCPL-J312#300 is a logic output optocoupler designed for IGBT gate drive applications. It features an AlGaAs LED optically coupled to an integrated circuit power output stage. The device provides a minimum peak output current of 2.0A and a maximum of 2.5A, supporting direct driving of 1200V/100A IGBTs and MOSFETs. Key electrical parameters include a propagation delay of 500ns maximum, rise/fall times of 100ns typical, and an isolation voltage of 3750 VRMS. It operates within a supply voltage range of 15V to 30V and includes UVLO protection.

Isolators - Gate Drivers Feature Summary

• Integrated high-speed gate driver with 2.0A minimum peak output current capability
• High common-mode transient immunity (CMTI) for noise-resistant operation in high-voltage environments
• Built-in under-voltage lockout (UVLO) with hysteresis for reliable switching protection
• Wide operating supply voltage range from 15V to 30V

Isolators - Gate Drivers Applications

• IGBT and MOSFET gate driving in motor control drives
• Industrial inverters and AC brushless DC motor drives
• Switching power supplies and solar inverters
• On-board chargers and automotive heating systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix #300 indicates the surface-mount gull-wing package variant distinct from through-hole DIP options. Confirm RoHS compliance status and ensure the datasheet matches the exact manufacturing lot requirements for your design. Cross-reference pinouts carefully as package variations exist within the HCPL-J312 family.

Isolators - Gate Drivers Selection Notes

Select this component when driving high-power IGBTs or MOSFETs requiring robust galvanic isolation. The wide supply voltage range accommodates various gate drive requirements without negative bias. Ensure the application environment stays within the -40°C to +100°C operating temperature range and respects the 3750 VRMS isolation limits.

Isolators - Gate Drivers Part Context

Part of the Broadcom HCPL-J312 series, which includes variants like HCPL-3120 and HCPL-J312-000E. The J-series typically denotes wider temperature ranges compared to standard industrial versions. This family is widely used in industrial automation and power conversion systems requiring reliable high-voltage isolation.

Isolators - Gate Drivers Replacement Considerations

HCPL-3120-300E offers similar functionality but may differ in temperature rating or packaging specifics. Verify pin compatibility and electrical parameters against the original datasheet before substitution. Other generic gate drive optocouplers require careful evaluation of CMTI and output current capabilities.