Broadcom ACPL-K305T Automotive Photovoltaic Drivers

Broadcom ACPL-K305T Automotive Photovoltaic Drivers with R²Coupler™ isolation are designed to drive high-voltage MOSFETs and/or IGBTs. These drivers provide reinforced insulation and reliability that deliver safe signal isolation critical in automotive and high-temperature industrial applications. The ACPL-K305T drivers consist of an AlGaAs infrared LED input stage optically coupled to an output detector circuit. The detector consists of a photovoltaic diode array and a turn-off circuit. The photovoltaic driver is turned on with a minimum input current of 3mA through the input LED. The MOSFET driver is turned off with an input voltage of 0.6V or less. The ACPL-K305T drivers are used in applications like solid-state relays, high-side power switch control, battery management systems, and precharge/active discharge circuits in high-voltage systems.

Features

R²Coupler™ isolation
Qualified to AEC-Q100 test guidelines
-40°C to 125°C automotive temperature range
Drive external power MOSFET/IGBT without isolated secondary supply
3mA low I_F drive
7.1V open-circuit voltage (typical) at I_F = 10mA
59μA short-circuit current (typical) at I_F = 10mA

Fast switching speed for I_F = 10mA, C_L = 1nF
0.07ms turn-on time (typical)
0.02ms turn-off time (typical)
Regulatory approvals:
- UL/cUL 1577 5kV_RMS for 1 minute
- IEC/EN 60747-5-5 V_IORM = 1260V_PEAK