HV53011 16-Channel 135V Push-Pull Driver with RTZ Features General Description 16-Channel Push-Pull Output HV53011 is a high-voltage driver solution for surface haptic applications. It consists of 16 push-pull drivers Return-To-Zero (RTZ) and High Impedance (Hi-Z) capable of 135V output swing with Return-To-Zero Function (RTZ) function. Each output driver is capable of sourc- Up to 135V Output Voltage ing and sinking at least 24 mA. Each high-voltage out- 24 mA Minimum Source Sink Output Current put is capable of driving up to 250 pF capacitive load. A 250 pF Maximum Output Load global current sensor function is also integrated into Current Sensor Output this device to monitor the charge and discharge cur- rents. The measured current is mapped to a low volt- SPI Interface with Quad-Latched 2-Bit per Channel Architecture age analog output with a scale factor of 3.1 V/V via a current-sensing resistor. Power-On Reset Function An SPI interface is used to communicate between the Shutdown Function microcontroller/processor and the high-voltage drivers. 59-Ball 8 x 8 mm TFBGA Package This interface accepts 3.3V logic I/O signals up to clock speeds of 32 MHz. Five digital LATCH control signals Application manage the data flow and the firing pattern. It estab- Surface Haptic Application lishes the output to one of four possible states: V , PP V , 0V or high impedance. NN MEMS Driver A proper power on and off sequence is critical to Piezo Driver ensure the operation of the high-voltage driver. This driver requires four high-voltage power rails, V , V , PP PF V , V , and three low-voltage power rails, V , V NN NF CC SS and V . A companion integrated driver IC, HV53001, LL has a built-in power on/off sequence control circuits to maintain the proper orders. A shutdown function is available to disable the driver and set it to consume minimum power when the driver is not used. The HV53011 device is packaged in a 8x8mm 59-ball TFBGA package. All high-voltage I/Os are assigned to have sufficient clearance for safety purposes. 2021 Microchip Technology Inc. DS20006519A-page 1HV53011 Typical Application Diagram SHDN LATCHA,B,C,D 4 GPIOs LATCHIN 32 32 Surface Haptics 4 Element 2 HV 0 OUT SS 2 32 32 HV 1 OUT SCK SPI 32 SDI SDO 32 32 2 HV 14 OUT 2 HVOUT15 32 32 VPPSENSE Analog IPP and INN VNNSENSE Current Sensors Inputs HV53011 DS20006519A-page 2 2021 Microchip Technology Inc. SPI 32-bit LATCHA 32-bit LATCHB 32-bit LATCHC 32-bit LATCHD SWITCHES 32-bit OUTPUT CONTROL REGISTER