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DRV8849RHHR

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Texas Instruments Stepper Motor Driver, VQFN-36(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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DRV8849RHHR

Texas Instruments · Stepper Motor Driver · VQFN-36(6x6)

DRV8849RHHR from Texas Instruments, in a VQFN-36(6x6). 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 MODE12 input Microstep mode setting input for Stepper 2 (0 to 5.5 V logic).
2 OUT1A tri_state H-Bridge 1 output A motor driver, -1 to VM+1 V continuous operation.
3 PGND1 power_in Power ground for H-Bridge 1, ±0.5 V continuous tolerance.
4 OUT1B tri_state H-Bridge 1 output B motor driver, -1 to VM+1 V continuous operation.
5 VM1 power_in Supply voltage input, 4.5 to 38 V, connect close to VM2.
6 OUT2B tri_state H-Bridge 2 output B motor driver, -1 to VM+1 V continuous operation.
7 PGND2 power_in Power ground for H-Bridge 2, ±0.5 V continuous tolerance.
8 OUT2A tri_state H-Bridge 2 output A motor driver, -1 to VM+1 V continuous operation.
9 ENABLE2 input Enable input for Stepper 2 (0 to 5.5 V logic), logic low disables Hi-Z outputs.
10 STEP2 input Step input signal for Stepper 2, supports 0 to 500 kHz frequency.
11 nSLEEP input Sleep mode input (-0.3 to 5.75 V), logic low enables 1.3 μA sleep mode.
12 nFAULT1 output Open-drain fault diagnostics output for Stepper 1, 0 to 10 mA.
13 VREF1 input Reference voltage input for Stepper 1 (0 to 3.3 V), sets full-scale chopping current.
14 nFAULT2 output Open-drain fault diagnostics output for Stepper 2, 0 to 10 mA.
15 VREF2 input Reference voltage input for Stepper 2 (0 to 3.3 V), sets full-scale chopping current.
16 GND power_in Analog ground pin, ±0.5 V continuous tolerance.
17 DECAY2 input Decay mode setting for Stepper 2 (0 to 5.5 V logic), selects 8/16/32 μs off-time.
18 STEP1 input Step input signal for Stepper 1, supports 0 to 500 kHz frequency.
19 DECAY1 input Decay mode setting for Stepper 1 (0 to 5.5 V logic), selects 8/16/32 μs off-time.
20 OUT4A tri_state H-Bridge 4 output A motor driver, -1 to VM+1 V continuous operation.
21 PGND4 power_in Power ground for H-Bridge 4, ±0.5 V continuous tolerance.
22 OUT4B tri_state H-Bridge 4 output B motor driver, -1 to VM+1 V continuous operation.
23 VM2 power_in Supply voltage input, 4.5 to 38 V, connect close to VM1.
24 OUT3B tri_state H-Bridge 3 output B motor driver, -1 to VM+1 V continuous operation.
25 PGND3 power_in Power ground for H-Bridge 3, ±0.5 V continuous tolerance.
26 OUT3A tri_state H-Bridge 3 output A motor driver, -1 to VM+1 V continuous operation.
27 MODE02 input Microstep mode setting input for Stepper 2 (0 to 5.5 V logic).
28 ENABLE1 input Enable input for Stepper 1 (0 to 5.5 V logic), logic low disables Hi-Z outputs.
29 MODE01 input Microstep mode setting input for Stepper 1 (0 to 5.5 V logic).
30 GND power_in Analog ground pin, ±0.5 V continuous tolerance.
31 VCP passive Charge pump reservoir capacitor terminal (-0.3 to VM+7 V).
32 CP1 passive Charge pump positive capacitor terminal (-0.3 to VM+7 V).
33 CP2 passive Charge pump negative capacitor terminal (-0.3 to VM V).
34 DIR1 input Direction control input for Stepper 1 (0 to 5.5 V logic).
35 MODE11 input Microstep mode setting input for Stepper 1 (0 to 5.5 V logic).
36 DIR2 input Direction control input for Stepper 2 (0 to 5.5 V logic).
37 PAD passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-36(6x6)
Category Motor Driver ICs
Pins 37

CAD (KiCad official)

  • Symbol: DRV8849RHHR
  • Footprint: Package_DFN_QFN:QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm
  • 3D model: VQFN-36(6x6) (KiCad packages3D, STEP)
  • 3D model files: drv8849rhhr-etched.step / drv8849rhhr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); drv8849rhhr.step / drv8849rhhr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 59630c118f041257, retrieved 2026-10-03, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (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