MCP45HVX1 7/8-Bit Single, +36V (18V) Digital POT 2 with I C Serial Interface and Volatile Memory Package Types (Top View) Features: MCP45HVX1 Single Potentiometer High-Voltage Analog Support: TSSOP (ST) - +36V Terminal Voltage Range (DGND = V-) - 18V Terminal Voltage Range V+ V 1 14 L 13 PA0 (DGND = V- + 18V) SCL 2 PW0 3 12 A1 Wide Operating Voltage: 4 11 PB0 SDA - Analog: 10V to 36V (specified performance) A0 10 5 V WLAT 6 9 DGND - Digital: 2.7V to 5.5V 7 8 SHDN NC 1.8V to 5.5V (V V- + 2.7V) L Single-Resistor Network QFN 5x5 (MQ) Resistor Network Resolution - 7-bit: 127 Resistors (128 Taps) - 8-bit: 255 Resistors (256 Taps) 18 17 16 20 19 R Resistance Options: 15 AB P0A V 1 L -5k10 k 14 P0W SCL 2 (1) -50k100 k 13 P0B 21 EP A1 3 High Terminal/Wiper Current (I ) Support: W V- 12 SDA 4 - 25mA (for 5k) DGND 11 A0 5 - 12.5 mA (for 10 k) - 6.5 mA (for 50 k and 100 k ) 89 10 6 7 Zero-Scale to Full-Scale Wiper Operation Low Wiper Resistance: 75 (typical) Low Tempco: Note 1: Exposed Pad (EP) - Absolute (Rheostat): 50 ppm typical 2: NC = Not Internally Connected (0C to +70C) - Ratiometric (Potentiometer): 15 ppm typical Description: 2 I C Serial Interface: The MCP45HVX1 family of devices have dual power rails (analog and digital). The analog power rail allows - 100 kHz, 400 kHz, 1.7 MHz, high voltage on the resistor network terminal pins. The and 3.4 MHz support analog voltage range is determined by the V+ and V Resistor Network Terminal Disconnect Via: voltages. The maximum analog voltage is +36V, while ) - Shutdown Pin (SHDN the operating analog output minimum specifications - Terminal Control (TCON) Register are specified from either 10V or 20V. As the analog Write Latch (WLAT) Pin to Control Update of supply voltage becomes smaller, the analog switch Volatile Wiper Register (such as Zero Crossing) resistances increase, which affect certain performance Power-On Reset/Brown-Out Reset for Both: specifications. The system can be implemented as dual rail (18V) relative to the digital logic ground (DGND). - Digital supply (V /DGND) 1.5V typical L - Analog supply (V+/V-) 3.5V typical The device also has a Write Latch (WLAT) function, which will inhibit the volatile Wiper register from being Serial Interface Inactive Current (3 A typical) updated (latched) with the received data, until the 500 kHz Typical Bandwidth (-4 dB) Operation WLAT pin is Low. This allows the application to specify (5.0 k Device) a condition where the volatile Wiper register is updated Extended Temperature Range (-40C to +125C) (such as zero crossing). Package Types: TSSOP-14 and QFN-20 (5x5) 2014 Microchip Technology Inc. DS20005304A-page 1 (2) WLAT NC (2) SHDN NC (2) (2) NC NC (2) (2) NC NC (2) NC V+ MCP45HVX1 Device Block Diagram V+ V Power-Up/ V L Brown-Out Power-Up/ Control Brown-Out DGND (Digital) Control (Analog) 2 I C Serial SCL Interface SDA Module and A0 Control P0A A1 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) 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 (1) 2 MCP45HV51 1 Potentiometer IC7Fh 75 255 256 50.0, 100.0 5.5V (4) 5.0, 10.0, 1.8V to 10V to 36V (5) 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 (5) (5) MCP41HV51 1 Potentiometer SPI 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 DS20005207. DS20005304A-page 2 2014 Microchip Technology Inc. of POTs Control Interface POR Wiper Setting R S Taps