MCP41HVX1 7/8-Bit Single, +36V (18V) Digital POT with SPI Serial Interface and Volatile Memory Package Types Features MCP41HVX1 Single Potentiometer High-Voltage Analog Support: - +36V Terminal Voltage Range (DGND = V-) TSSOP (ST) - 18V Terminal Voltage Range V+ V 14 1 L (DGND = V- + 18V) P0A SCK 13 2 12 P0W CS 3 Wide Operating Voltage: 11 P0B 4 SDI - Analog: 10V to 36V (specified performance) SDO 5 10 V- 9 - Digital: 2.7V to 5.5V WLAT 6 DGND (2) 8 NC SHDN 7 1.8V to 5.5V (DGND V- + 0.9V) Single Resistor Network 5x 5 VQFN (MQ) Potentiometer Configuration Options Resistor Network Resolution - 7-bit: 127 resistors (128 Taps) 20 19 18 17 16 - 8-bit: 255 resistors (256 Taps) 15 P0A V 1 L R Resistance Options: 14 P0W AB SCK 2 -5k10 k (1) 21 EP 13 P0B CS 3 -50k100 k V- 12 SDI 4 High Terminal/Wiper Current (I ) Support: W DGND 11 SDO 5 - 25mA (for 5k) - 12.5 mA (for 10 k) 89 10 67 - 6.5 mA (for 50 k and 100 k ) Zero-Scale to Full-Scale Wiper Operation Low Wiper Resistance: 75 (Typical) Low Temperature Coefficient: Note 1: Exposed Pad (EP) 2: NC = Not Internally Connected - Absolute (Rheostat): 50 ppm typical (0C to +70C) - Ratiometric (Potentiometer): 15 ppm typical Description SPI Serial Interface The MCP41HVX1 family of devices have dual power (10 MHz, Modes 0,0 and 1,1) rails (analog and digital). The analog power rail allows Resistor Network Terminal Disconnect Via: high voltage on the resistor network terminal pins. The - Shutdown pin (SHDN) analog voltage range is determined by the V+ and V- - Terminal Control (TCON) register voltages. The maximum analog voltage is +36V, while the operating analog output minimum specifications are Write Latch (WLAT) Pin to Control Update of specified from either 10V or 20V. As the analog supply Volatile Wiper Register (such as Zero Crossing) voltage becomes smaller, the analog switch resistances Power-on Reset/Brown-out Reset for Both: increase, which affects certain performance specifica- - Digital supply (V /DGND) 1.5V typical L tions. The system can be implemented as dual rail - Analog supply (V+/V-) 3.5V typical (18V) relative to the digital logic ground (DGND). Serial Interface Inactive Current (3 A Typical) The device also has a Write Latch (WLAT) function, 500 kHz Typical Bandwidth (-3 dB) Operation which will inhibit the volatile wiper register from being (5.0 k Device) updated (latched) with the received data until the WLAT Extended Temperature Range (-40C to +125C) pin is low. This allows the application to specify a con- dition where the volatile wiper register is updated (such Package Types: TSSOP-14 and VQFN-20 (5x5) as zero crossing). 2013-2015 Microchip Technology Inc. DS20005207B-page 1 (2) WLAT NC (2) SHDN NC (2) (2) NC NC (2) (2) NC NC (2) NC V+ MCP41HVX1 Device Block Diagram V+ V Power-up/ V L Brown-out Power-up/ Control Brown-out DGND (Digital) Control (Analog) CS SPI Serial Interface SCK Module and SDI Control P0A SDO Resistor Logic Network 0 (Pot 0) WLAT P0W SHDN Wiper 0 and TCON Register Memory (2x8) P0B Wiper0 (V) TCON Device Features Number Specified Operating Resistance (Typical) of: Range Wiper Device Configuration R Options Wiper - AB (2) (3) V V+ L (k ) R ( ) W (4) 5.0, 10.0, 1.8V to 10V to 36V (1) MCP41HV31 1 Potentiometer SPI 3Fh 75 127 128 50.0, 100.0 5.5V (4) 5.0, 10.0, 1.8V to 10V to 36V (1) MCP41HV51 1 Potentiometer SPI 7Fh 75 255 256 50.0, 100.0 5.5V (4) 5.0, 10.0, 1.8V to 10V to 36V (5) (1) 2 MCP45HV31 1 Potentiometer I C 3Fh 75 127 128 50.0, 100.0 5.5V (4) 5.0, 10.0, 1.8V to 10V to 36V (5) (1) 2 MCP45HV51 1 Potentiometer I C 7Fh 75 255 256 50.0, 100.0 5.5V Note 1: Floating either terminal (A or B) allows the device to be used as a Rheostat (variable resistor). 2: This is relative to the DGND signal. There is a separate requirement for the V+/V- voltages: V V- + 2.7V. L 3: Relative to V-, the V and DGND signals must be between (inclusive) V- and V+. L 4: Analog operation will continue while the V+ voltage is above the devices analog Power-on Reset (POR)/Brown-out Reset (BOR) voltage. Operational characteristics may exceed specified limits while the V+ voltage is below the specified minimum voltage. 5: For additional information on these devices, refer to DS20005304. DS20005207B-page 2 2013-2015 Microchip Technology Inc. of POTs Control Interface POR Wiper Setting R S Taps