MTCH652-I/SS Number of I/O Channels, Microchip 19-Channel I/O Expander Serial-SPI 28-Pin SSOP, MTCH652-I/SS

MTCH652 Capacitive Touch Line Driver
The Microchip MTCH652 is a Driver IC designed to drive High-Voltage Outputs in Capacitive Touch applications. The MTCH652 combines a Boost Converter with 19 Level Shifters to drive up to 19 channels.The device is programmable via a Configuration (CONFIG) registers. The CONFIG register can be altered during device operation via a SPI interface to select the desired voltage output. Soft Start can also be tailored to limit initial in-rush currents to prevent system brown-outs.In a typical application the MTCH652 requires only a SPI interface, Latch Enable Input, PWM Input, two Capacitors and a small Inductor.
Features
19 High-Voltage I/O LinesBuilt-in Boost ConverterInternal Switch1.8 V to 5.5 V Input Operating RangeLow Quiescent Current: 200 μALow Shutdown Current: 1.5 μA, typicalUp to 50 mA Output Current @ VIN = 3.6 V and VOUT = 12 VDriven by an External PWM Driven Boost for Greater Boost FlexibilitySelectable Output Voltage Range: 6 V, 8 V, 10 V, 12 V, 14 V, 16 V and 18 VSelectable Current LimitingSelectable Soft StartHigh-Speed SPI Interface: 1 MHz max.Output Enable (OE) Independent of SPI InterfaceBuilt-in Discharge Circuit
Human Machine Interface (HMI), Microchip