Infineon Technologies IR432x Evaluation Boards

Infineon IR432x Evaluation Boards are reference design boards supporting IR432x audio amplifier ICs. These boards demonstrate how to use the IR4321 or IR4322 ICs, implement protection circuits, and design an optimum PCB layout using PowIRaudio integrated Class D IC. These evaluation boards do not require a heatsink or fan cooling for normal operation (one-eighth of continuous rated power). The designs offer the required housekeeping power supplies for ease of use. The two-channel design is also scalable for power and the number of channels. Infineon IR432x Evaluation Boards include multiple protection features and a pulse width modulator (PWM) modulator.

Features

Output power
- IRAUDAMP21: 90W x 2 channels (10%THD+N 2Ω load, no heatsink), 135W x 2 channels (10%THD+N 2Ω load, with heatsink)
- IRAUDAMP22: 50W x 2 channels (10%THD+N 2Ω load, no heatsink), 100W x 2 channels (10%THD+N 2Ω load, with heatsink)

Multiple protections: overcurrent (OCP), high side and low side overvoltage (OVP), undervoltage (UVP), high side and low side DC (DCP), and overtemperature (OTP)
PWM modulator: Self-oscillating half-bridge topology with optional clock synchronization