High-Voltage PTC Heater

Heating up the cabin of hybrid and battery electric vehicles can be challenging. Positive temperature coefficient (PTC) heaters offer efficiency, dependability, and can eliminate any risk of overheating – improving passenger comfort and safety in 48V systems and optimizing charging for longer range in high voltage (HV) systems.

Allegro offers compact solutions, including half-bridge gate drivers with high isolation, current sensors, and EMC-compliant safety-focused DC/DC regulators, to provide customers with reliable and safe solutions that reduce their overall PTC heater footprint.

High Voltage 400V / 800V PTC Heaters application diagram
  • More

    DC/DC Regulator ICs

    ARG81800 – 1A, Synchronous Rectified Buck DC/DC

    APM81803 – 3A, Synchronous Buck Regulator Module

    APM81911 – 3A, Synchronous Buck Regulator Module

    Close
  • More

    Current Sensor

    ACS772 – Ultra-efficient, Isolated 200A Current Sensor (5V)

    ACS773 – Ultra-efficient, Isolated 200A Current Sensor (3.3V)

    ACS71240 – Integrated current sensor with Overcurrent

    Close
  • More

    Isolated Gate Driver

    AHV85110 – GaN Gate Driver with Power-Thru technology

    AHV85111 – GaN Gate Driver with Power-Thru technology

    Close

Featured Products

Self-Powered Single-Channel Isolated GaNFET Gate Driver with Power-Thru Integrated Isolated Bias Supply

AHV85110

The AHV85110 isolated gate driver is optimized for driving GaN FETs in multiple applications and topologies.
Self-Powered Single-Channel Isolated GaNFET Gate Driver with Regulated Bipolar Output Drive

AHV85111

Self-Powered Single-Channel Isolated GaN FET Driver with Regulated Bipolar Output Drive
CB Package Image

ACS772

200kHz, 1.5% Max Tolerance, 100 µΩ Internal Resistance Module-alternative Current Sensor, working off of a single 5 V supply
ACS773 Product Image

ACS773

200kHz, 1.5% Max Tolerance, 100 µΩ Internal Resistance Module-alternative Current Sensor, working off of a single 3.3 V supply