HV56022-V/KNX

Overview

The HV56022-V/KNX is a dual high voltage operational amplifier array designed to drive haptic piezo actuators. It provides up to +225V output with a minimum peak source/sink current of 40 mA per channel. The device features a -3 dB bandwidth of 124 Hz when driving 0.22 μF capacitive loads at 225V sinusoidal waveforms. It includes integrated output voltage comparators for short circuit detection and operates within a junction temperature range of 0°C to +125°C.

Feature Summary

• Dual high voltage operational amplifiers capable of driving up to +225V
• Integrated output voltage comparators for load short circuit detection
• Fixed closed-loop gain of 75 V/V with external bias control
• Dedicated shutdown pin for power management

Applications

• Haptic drivers
• Power amplifiers

Procurement Notes

Verify the specific suffix KNX against official Microchip documentation to confirm package type and environmental compliance details. Ensure that ordering requirements match the manufacturer's standard packaging configurations. Cross-reference the datasheet revision DS20006326A to validate all electrical specifications prior to integration into final designs.

Selection Notes

Select this component for applications requiring high voltage actuation with integrated protection features. The fixed 75 V/V gain simplifies interface design, while the comparator outputs provide immediate fault feedback. Consider thermal dissipation requirements due to potential power consumption during continuous operation modes.

Part Context

This part belongs to the HV5602x family of dual high voltage operational amplifiers. It is often paired with the HV56020, which integrates a step-up converter and power MOSFET, to create multi-channel haptic driver solutions. The HV56022 focuses on the amplification stage without internal high voltage generation.

Replacement Considerations

HV56020-V/KXX

FAQ

How is the amplifier bandwidth controlled?

The bandwidth is controlled by the internal bias currents set by an external resistor connected to the RBIAS pin.

What is the function of the Timer pins?

Timer pins add delay compensation to the comparator inputs to prevent false triggering caused by heavy capacitive loads or slow signal rise times.