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MCP45HV51-103E

Microchip Tech · Digital Potentiometers · TSSOP-14

MCP45HV51-103E from Microchip Tech, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VL power_in Positive digital power supply input, relative to DGND, ranging from 1.8V to 5.5V, with a decoupling capacitor to DGND recommended.
2 SCL input I2C serial clock input, input-only for the I2C client device, with a Schmitt-trigger buffer.
3 A1 input I2C address bit 1 input, which together with A0 sets the device address so up to four devices can share one I2C bus.
4 SDA bidirectional I2C serial data pin, an open-drain N-channel driver that carries data in and out for the wiper and TCON registers.
5 A0 input I2C address bit 0 input, latched at POR/BOR, which together with A1 completes the device address.
6 WLAT input Wiper latch enable that holds off transfer of the received wiper value to the Wiper register while held high and allows the update when low.
7 NC unconnected Not internally connected to the die; to reduce noise coupling, connect to either DGND or VL.
8 SHDN input Shutdown input that forces the resistor network terminals into the hardware shutdown state.
9 DGND power_in Digital ground reference for the device, with VL and the digital logic referenced to it.
10 V- power_in Analog negative potential supply, which must be lower than or equal to the DGND pin potential.
11 P0B passive Potentiometer 0 Terminal B, the fixed connection to the zero-scale wiper value, with voltage that must be between V+ and V-.
12 P0W passive Potentiometer 0 wiper terminal, the adjustable terminal, with voltage that must be between V+ and V- and supporting both positive and negative current.
13 P0A passive Potentiometer 0 Terminal A, the fixed connection to the full-scale wiper value, with voltage that must be between V+ and V-.
14 V+ power_in Analog positive potential supply, which must have a higher potential than the V- pin.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TSSOP-14
Category ADC/DAC/Data Conversion
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Voltage on V- with respect to DGND -40 0.6 V 3
Voltage on V+ with respect to DGND -0.3 40 V 3
Voltage on V+ with respect to V- -0.3 40 V 3
Voltage on VL with respect to DGND -0.6 7 V 3
Voltage on VL with respect to V- -0.6 40 V 3
Voltage on all other pins (PxA, PxW, PxB) with respect to V- -0.3 V 3
Input clamp current IIK -20 20 mA VI < 0, VI > VL, VI > VPP on HV pins 3
Output clamp current IOK -20 20 mA VO < 0 or VO > VL 3
Maximum current out of DGND pin 100 mA 3
Maximum current into VL pin 100 mA 3
Maximum current into PXA, PXW, PXB pins (Continuous), RAB = 10 k -12.5 12.5 mA RAB = 10 k 3
Maximum output current sunk by any Output pin 25 mA 3
Maximum output current sourced by any Output pin 25 mA 3
Package Power Dissipation TSSOP-14 1000 mW TA = +50°C, TJ = +150°C 3
ESD protection Human Body Model (HBM) -5 5 kV 3
Maximum Junction Temperature (TJ) TJ 150 °C 3
Storage temperature -65 150 °C 3
Ambient temperature with power applied -40 125 °C 3
Digital Positive Supply Voltage (VL) VL 2.7 5.5 V With respect to DGND (Note 4) 4
Digital Positive Supply Voltage (VL), low range VL 1.8 5.5 V VL V- + 2.7V (Note 1, Note 4) 4
Analog Positive Supply Voltage (V+) V+ 36 V With respect to V- (Note 4) 4
Analog Negative Supply Voltage (V-) V- 0 V With respect to DGND and with VL = 1.8V 4
Resistor Network Supply Voltage VRN 36 V Delta voltage between V+ and V- (Note 4) 4
VL Start Voltage to ensure Wiper Reset VDPOR 1.8 V With respect to DGND, V+ > 6.0V 4
V+ Voltage to ensure Wiper Reset VAPOR 6 V With respect to V-, VL = 0V 4
Digital to Analog Level Shifter Operational Voltage VLS 2.3 V VL to V- voltage. 4
Power Rail Voltages during Power-Up, digital powers up first VLPOR 5.5 V Digital Powers (VL/DGND) up 1st: V+ and V- floating or as V+/V- powers-up (Note 18) 4
Supply Current, serial interface active (IDDD) IDDD 45 650 µA Serial Interface Active, Write all 0's to Volatile Wiper 0 (address 0h), VL = 5.5V, FSCL = 3.4 MHz, V- = DGND 5
Supply Current, serial interface inactive (IDDD) IDDD 4 7 µA Serial Interface Inactive, VL = 5.5V, SCL = VIH, Wiper = 0, V- = DGND 5
Supply Current analog (IDDA) IDDA 5 µA Current V+ to V-, PxA = PxB = PxW, DGND = V- +(V+/2) 5
Resistance RAB (±20%), -103 device RAB 8 10 12 k -103 devices, V+/V- = 10V to 36V 5
Resistance tolerance (±20%) RAB -20 20 % 5
RAB Current, -103 device IAB 4.5 mA -103 devices 5
Wiper Resistance (RW), IW = 1 mA, V+ = +18V RW 75 170 Ω IW = 1 mA V+ = +18V, V- = -18V, code = 00h, PxA = floating, PxB = V- 6
Wiper Resistance (RW), IW = 1 mA, V+ = +5.0V RW 145 200 Ω IW = 1 mA V+ = +5.0V, V- = -5.0V, code = 00h, PxA = floating, PxB = V- (Note 2) 6
Current through Terminals (A, B, Wiper), -103 device IT, IW 12.5 mA -103 devices IBW(W ≠ ZS) and IAW(W ≠ FS) 6
Current through Terminals (A, B, Wiper) at zero/full scale IT, IW 36 mA IBW(W = ZS), or IAW(W = FS) 6
Input Leakage Current (digital) IIL -1 1 uA VIN = VL and VIN = DGND 13
Potentiometer Integral Nonlinearity, 10 k 8-bit P-INL -1 0.5 1 LSb 8-bit VAB = 10V to 36V 9
Potentiometer Integral Nonlinearity, 10 k 7-bit P-INL -0.5 0.25 0.5 LSb 7-bit VAB = 10V to 36V 9
Potentiometer Differential Nonlinearity, 10 k 8-bit P-DNL -0.375 0.125 0.375 LSb 8-bit VAB = 10V to 36V 9
Potentiometer Differential Nonlinearity, 10 k 7-bit P-DNL -0.25 0.1 0.25 LSb 7-bit VAB = 10V to 36V 9
Rheostat Integral Nonlinearity, 10 k 8-bit, 36V R-INL -1.2 1.2 LSb 8-bit IW = 3.0 mA, (V+ - V-) = 36V (Note 2) 11
Rheostat Integral Nonlinearity, 10 k 8-bit, 20V R-INL -1.75 1.75 LSb 8-bit IW = 1.7 mA, (V+ - V-) = 20V (Note 2) 11
Rheostat Integral Nonlinearity, 10 k 8-bit, 10V R-INL -2 2 LSb 8-bit IW = 830 µA, (V+ - V-) = 10V 11
Rheostat Integral Nonlinearity, 10 k 7-bit, 36V R-INL -0.6 0.6 LSb 7-bit IW = 3.0 mA, (V+ - V-) = 36V (Note 2) 11
Rheostat Integral Nonlinearity, 10 k 7-bit, 20V R-INL -0.8 0.8 LSb 7-bit IW = 1.7 mA, (V+ - V-) = 20V (Note 2) 11
Rheostat Integral Nonlinearity, 10 k 7-bit, 10V R-INL -1.1 1.1 LSb 7-bit IW = 830 µA, (V+ - V-) = 10V 11
Rheostat Differential Nonlinearity, 10 k 8-bit, 36V R-DNL -0.5 0.5 LSb 8-bit IW = 3.0 mA, (V+ - V-) = 36V (Note 2) 12
Rheostat Differential Nonlinearity, 10 k 8-bit, 20V R-DNL -0.5 0.5 LSb 8-bit IW = 1.7 mA, (V+ - V-) = 20V (Note 2) 12
Rheostat Differential Nonlinearity, 10 k 8-bit, 10V R-DNL -0.5 0.5 LSb 8-bit IW = 830 µA, (V+ - V-) = 10V 12
Rheostat Differential Nonlinearity, 10 k 7-bit, 36V R-DNL -0.25 0.25 LSb 7-bit IW = 3.0 mA, (V+ - V-) = 36V (Note 2) 12
Rheostat Differential Nonlinearity, 10 k 7-bit, 20V R-DNL -0.25 0.25 LSb 7-bit IW = 1.7 mA, (V+ - V-) = 20V (Note 2) 12
Rheostat Differential Nonlinearity, 10 k 7-bit, 10V R-DNL -0.25 0.25 LSb 7-bit IW = 830 µA, (V+ - V-) = 10V 12
Serial clock frequency FSCL, standard mode FSCL 0 100 kHz Cb = 400 pF, 1.8V VL 5.5V 17
Serial clock frequency FSCL, fast mode FSCL 0 400 kHz Cb = 400 pF, 2.7V VL 5.5V 17
Operating temperature range TA TA -40 125 °C 21
Ratiometric Tempco (VBW/T) VBW/T 15 ppm/°C Code = Mid scale (7Fh or 3Fh) 6
Nominal Resistance Tempco (RAB/T) RAB/T 50 ppm/°C TA = -40°C to +85°C 6
Thermal Resistance, 14L-TSSOP (JA) JA 100 °C/W 21

CAD (KiCad official)

  • Symbol: MCP45HV51-103E
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: mcp45hv51-103e-etched.step / mcp45hv51-103e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp45hv51-103e.step / mcp45hv51-103e.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (102 pp, sha256 18feae380a4045ff, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF