Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

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