Broadcom ACPL-K309T Automotive Photovoltaic Drivers

Broadcom ACPL-K309T Automotive Photovoltaic Drivers are specifically designed to drive high voltage MOSFETs and IGBTs with R²Coupler™ isolation. The R²Coupler isolation devices provide reinforced insulation and reliability that deliver safe signal isolation for critical automotive and high-temperature industrial applications. These photovoltaic drivers are available in a stretched SO-8 package compatible with standard surface mount processes. The ACPL-K309T photovoltaic drivers are ideal for solid-state relays, high-side power switch control, battery management systems, and battery insulation resistance measurement/leakage detection.

The ACPL-K309T photovoltaic MOSFET drivers consist of an AlGaAs infrared Light-Emitting Diode (LED) input stage optically coupled to an output detector circuit. These photovoltaic drivers operate at -40°C to 125°C temperature range. The design of ACPL-K309T automotive photovoltaic drivers does not require a secondary side bias supply.

Features

Qualified to AEC-Q100 test guidelines
-40°C to 125°C automotive temperature range
Drive external power MOSFET/IGBT without isolated secondary supply
Low I_F drive of 3mA
Open-circuit voltage:
- 14.3V typical at I_F = 10mA
Short-circuit current:
- 34μA typical at I_F = 10mA

Fast switching speed for I_F = 10mA, CL = 1nF:
- 0.26ms typical turn-on time
- 0.013ms typical turn-off time
Regulatory approvals:
- UL/cUL 1577 5k_VRMS for 1 minute
- IEC/EN 60747-5-5 V_IORM = 1260V_PEAK

Applications

Solid state relay
High-side power switch control

Battery management system
Pre-charge/active discharge circuit in high voltage system

Broadcom ACPL-K309T Automotive Photovoltaic Drivers

Features

Applications

Functional Diagram

Application Circuit Diagram

Dimensions

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