component
DRV8436PWPR
Public Made by Adomby adom
Texas Instruments Stepper Motor Driver, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDRV8436PWPR
Texas Instruments · Stepper Motor Driver · HTSSOP-28
DRV8436PWPR from Texas Instruments, in a HTSSOP-28. 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 | VCP | power_out | Charge pump output (VM + 5V) for high-side gate drive; connect 0.22µF 16V X7R capacitor to VM. |
| 2 | VM | power_in | Motor power supply input with range 4.5V to 48V; bypass through 0.01µF ceramic capacitors and bulk capacitor to GND. |
| 3 | PGND | power_in | Power ground internally shorted to pin 12; connect to system ground on PCB. |
| 4 | NC | unconnected | No connection; do not connect this pin. |
| 5 | AOUT1 | output | Winding A motor phase output with maximum 1.1A RMS continuous current. |
| 6 | AOUT2 | output | Winding A motor phase output with maximum 1.1A RMS continuous current. |
| 7 | NC | unconnected | No connection; do not connect this pin. |
| 8 | NC | unconnected | No connection; do not connect this pin. |
| 9 | BOUT2 | output | Winding B motor phase output with maximum 1.1A RMS continuous current. |
| 10 | BOUT1 | output | Winding B motor phase output with maximum 1.1A RMS continuous current. |
| 11 | NC | unconnected | No connection; do not connect this pin. |
| 12 | PGND | power_in | Power ground internally shorted to pin 3; connect to system ground on PCB. |
| 13 | VM | power_in | Motor power supply input with range 4.5V to 48V; bypass through 0.01µF ceramic capacitors and bulk capacitor to GND. |
| 14 | GND | power_in | Device ground; connect to system ground. |
| 15 | DVDD | power_out | Regulated 5V logic power supply output with 2mA maximum load; bypass to GND with 0.47µF to 1µF X7R capacitor rated 6.3V or 10V. |
| 16 | nFAULT | tri_state | Open-drain fault indicator output pulled low on fault condition; requires external pull-up resistor to 3.3V or 5V. |
| 17 | VREF | power_in | Current setting reference input voltage 0.05V to 3.3V maximum for PWM current control. |
| 18 | M0 | input | Microstepping mode setting input with internal pull-down resistor; used with M1 to select stepping resolution from full-step to 1/256 step. |
| 19 | TOFF | input | Four-level PWM off-time input selecting chopping duration of 7µs, 16µs, 24µs, or 32µs during current regulation. |
| 20 | DECAY1 | input | Decay mode selection input with internal pull-down resistor used with DECAY0 to configure current decay mode. |
| 21 | DECAY0 | input | Decay mode selection input with internal pull-down resistor used with DECAY1 to configure current decay mode. |
| 22 | M1 | input | Microstepping mode setting input with internal pull-down resistor; used with M0 to select stepping resolution from full-step to 1/256 step. |
| 23 | STEP | input | Step command input with internal pull-down resistor; rising edge advances indexer one step; maximum frequency 500kHz. |
| 24 | DIR | input | Direction control input with internal pull-down resistor; logic level selects motor stepping direction. |
| 25 | ENABLE | input | Output enable input with internal pull-up to DVDD; logic low disables motor outputs, logic high enables; selects OCP response mode. |
| 26 | nSLEEP | input | Sleep mode control input with internal pull-down resistor; logic high enables device operation, logic low enters low-power 2µA sleep mode. |
| 27 | CPL | passive | Charge pump flying capacitor return node; connect 0.022µF VM-rated X7R ceramic capacitor between CPL and CPH. |
| 28 | CPH | passive | Charge pump switching node; connect 0.022µF VM-rated X7R ceramic capacitor between CPH and CPL for charge pump operation. |
| 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:
DRV8436PWPR - Footprint:
Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm - 3D model: HTSSOP-28 (KiCad packages3D, STEP)
- 3D model files:
drv8436pwpr-etched.step/drv8436pwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);drv8436pwpr.step/drv8436pwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (52 pp, sha256
8c817610402342b6, retrieved 2026-10-03, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).