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DRV8812PWPR

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Texas Instruments Stepper Motor Driver, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DRV8812PWPR

Texas Instruments · Stepper Motor Driver · HTSSOP-28

DRV8812PWPR from Texas Instruments, in a HTSSOP-28. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CP1 passive Charge pump flying capacitor pin; connect 0.01-μF 50-V capacitor between CP1 and CP2.
2 CP2 passive Charge pump flying capacitor pin; connect 0.01-μF 50-V capacitor between CP1 and CP2.
3 VCP output High-side gate drive supply voltage output; requires 0.1-μF 16-V bypass capacitor and 1-MΩ resistor to VM.
4 VMA power_in Bridge A motor supply voltage input, 8.2 V to 45 V; requires 0.1-μF bypass capacitor to GND.
5 AOUT1 output Bridge A output 1; drives motor winding A.
6 ISENA passive Bridge A ground/current sense connection; connect to current sense resistor for bridge A.
7 AOUT2 output Bridge A output 2; drives motor winding A.
8 BOUT2 output Bridge B output 2; drives motor winding B.
9 ISENB passive Bridge B ground/current sense connection; connect to current sense resistor for bridge B.
10 BOUT1 output Bridge B output 1; drives motor winding B.
11 VMB power_in Bridge B motor supply voltage input, 8.2 V to 45 V; requires 0.1-μF bypass capacitor to GND.
12 AVREF input Bridge A current set reference voltage input; sets winding current amplitude with recommended 0.01-μF bypass to GND.
13 BVREF input Bridge B current set reference voltage input; sets winding current amplitude with recommended 0.01-μF bypass to GND.
14 GND power_in Device ground; reference point for all voltage measurements and power return.
15 V3P3OUT power_out 3.3 V regulated output; requires 0.47-μF 6.3 V bypass capacitor to GND, can supply VREF.
16 nRESET input Active-low reset input; initializes internal logic and disables H-bridge outputs when driven low.
17 nSLEEP input Sleep mode input; logic high enables device, logic low enters low-power sleep mode with gate drive charge pump stopped.
18 nFAULT tri_state Open-drain fault output; driven low during overtemperature, overcurrent, or other fault conditions.
19 DECAY input Decay mode selection input; low selects slow decay, open selects mixed decay, high selects fast decay for both bridges.
20 APHASE input Bridge A phase/direction input; logic high sets AOUT1 high and AOUT2 low.
21 AENBL input Bridge A enable input; logic high enables bridge A outputs.
22 BENBL input Bridge B enable input; logic high enables bridge B outputs.
23 BPHASE input Bridge B phase/direction input; logic high sets BOUT1 high and BOUT2 low.
24 AI0 input Bridge A current setting input LSB; part of 2-bit DAC with AI1 that sets current to 100%, 71%, 38%, or 0% of full-scale.
25 AI1 input Bridge A current setting input MSB; part of 2-bit DAC with AI0 that sets current to 100%, 71%, 38%, or 0% of full-scale.
26 BI0 input Bridge B current setting input LSB; part of 2-bit DAC with BI1 that sets current to 100%, 71%, 38%, or 0% of full-scale.
27 BI1 input Bridge B current setting input MSB; part of 2-bit DAC with BI0 that sets current to 100%, 71%, 38%, or 0% of full-scale.
28 GND power_in Device ground; reference point for all voltage measurements and power return.
29 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-28
Category Motor Driver ICs
Pins 29

CAD (KiCad official)

  • Symbol: DRV8812PWPR
  • Footprint: Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm
  • 3D model: HTSSOP-28 (KiCad packages3D, STEP)
  • 3D model files: drv8812pwpr-etched.step / drv8812pwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); drv8812pwpr.step / drv8812pwpr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (32 pp, sha256 e267ee0fecd31d5d, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5 (agreed), 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