HV56022T-V/KNX

Overview

The HV56022T-V/KNX is a dual high voltage operational amplifier array designed to drive haptic piezo actuators. It operates with a high voltage supply (VPP) up to 225V and provides a minimum peak output 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 full scale. It includes integrated output voltage comparators for short circuit detection, a shutdown pin for power management, and requires low voltage supplies (VCC and VLL). The component is housed in a 20-lead VQFN package.

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 with external bias control for bandwidth adjustment
• Dedicated shutdown input pin for disabling internal bias currents

Applications

• Haptic drivers for electro-mechanical polymer actuators
• Power amplifiers requiring high voltage output swing
• Multi-channel tactile feedback systems using paired HV56020 devices

Procurement Notes

Verify the specific suffix 'T-V/KNX' against official Microchip documentation to confirm reel packaging and RoHS compliance status. Ensure that the ordering information matches the exact datasheet revision DS20006326A. Confirm that the supplier provides traceability codes consistent with the marking legend defined in the manufacturer's specifications.

Selection Notes

Select this component when designing systems requiring dual channels of high voltage actuation without an integrated boost converter. It is intended to be paired with the HV56020, which generates the necessary VPP supply. Designers must account for thermal dissipation requirements by utilizing adequate copper pours on the PCB, as the device dissipates significant power during continuous operation.

Part Context

The HV56022 belongs to the HV5602x family of high voltage operational amplifiers manufactured by Microchip Technology. It serves as a complementary driver stage to the HV56020, which contains the step-up converter and power MOSFETs required to generate the high voltage rail. This separation allows designers to scale the number of drive channels independently of the power generation circuitry.

Replacement Considerations

The HV56020-V/KXX is a related device within the same family but includes an integrated boost converter and power MOSFET. It cannot directly replace the HV56022 if the system relies on an external high voltage source, as their functional architectures differ significantly.