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The HV56020-V/KXX is a Multi-Chip Module (MCM) driver solution designed for haptic applications. It integrates dual high-voltage operational amplifiers, a DC-to-DC step-up converter controller, and a power MOSFET within a 43-lead VQFN package. The device drives piezo actuators up to +225V with a minimum peak output sink/source current of 40 mA per channel. The integrated DC-to-DC controller operates from a single input voltage supply ranging from 2.7V to 5.5V. The high-voltage amplifiers feature a -3 dB bandwidth of 124 Hz with a 0.22 µF load.
Verify the specific ordering suffix '-KXX' against the manufacturer's official documentation to confirm exact packaging and temperature grade specifications. Ensure that the required external components, such as the transformer for the flyback configuration and storage capacitors for the charge pump, are selected according to the datasheet recommendations for optimal performance and reliability.
Select this component when a compact multi-chip module solution is required to drive high-voltage piezoelectric actuators. The integrated nature of the amplifier, converter, and MOSFET simplifies the design process by reducing the number of discrete components needed. Consider the fixed gain and bandwidth characteristics when designing the signal conditioning circuitry for the intended haptic feedback application.
The HV56020 belongs to Microchip Technology's family of high-voltage driver solutions specifically engineered for haptic feedback systems. It serves as a complete driver stage, eliminating the need for separate high-voltage op-amps and boost converters. This integration allows for smaller form factors and reduced board space in portable devices requiring tactile response capabilities.
HV56022
The bandwidth is controlled by the internal bias currents, which are set by an external resistor connected to the RBIAS pin.
The SHDN pin is used to deactivate the high-voltage operational amplifiers or to disable other family devices, such as the HV56022, when used in the same application.