AHV85040 Overview
The AHV85000 + AHV85040 is a cost-optimized isolated gatedrive chipset for gallium-nitride (GaN) field-effect-transistor (FET) devices. When bined with one of the remended external transformers, it provides a self-powered isolated gate drive solution, ideal for GaN FETs in multiple applications and topologies. The chipset transmits both the pulse-width-modulated (PWM) signal and the gate bias power through the...
AHV85040 Key Features
- Chipset transmits both PWM signal and bias power through a single external isolation transformer
- No high-side bootstrap
- No external secondary-side bias supply
- 50 ns propagation delay (with remended transformers)
- Separate drive output pins: pull-up (2.8 Ω) and pull-down (1.0 Ω)
- Supply voltage 10.5 V < VDRV < 13.2 V
- Undervoltage lockout on primary VDRV and secondary VSEC
- Enable pin with fast response
- Continuous ON capability-no need to recycle IN or
- CMTI > 100 V/ns dv/dt immunity (with remended