DRV8872DDAR
Texas Instruments
Needs validationhigh risk
A functional alternative from the same family with similar ratings but requires a board redesign.
Best Alternatives to DRV8870DDAR
Find and compare suitable replacements for the DRV8870DDAR, a 3.6A brushed DC motor driver. Review pin-compatible options, functional alternatives, and parametric variants to meet your design needs.
AI replacement insight
Firmware risklow
The DRV8871DDAR is pin-compatible but requires a firmware change for its different control logic.
Electrical riskmedium
Some alternatives like PT2470 have a narrower operating voltage range that must be validated.
Package riskhigh
Functional alternatives like DRV8872DDAR are not pin-compatible and require a full PCB redesign.
Can it be replaced directly?
Yes, the Texas Instruments DRV8871DDAR is a potential pin-for-pin replacement, but it requires a firmware change due to a different control scheme.
Best replacement path
The DRV8871DDAR is the most direct replacement, offering identical electrical ratings and package, requiring only a firmware adjustment for its control logic.
Main risk
The primary risk is ensuring firmware compatibility for control logic differences and verifying that parametric variations in other candidates, like operating voltage, fit the application.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | DRV8870DDAR | DRV8872DDAR | PT2470 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 8-pin HSOP | HSOP-8 | 8-Pin HSOP | HSOP-8 / 8-Pin HSOP — Same package type.; PT2470: Package matches. | |
| Pinout | Same | Different | - | Different — Pin 5 (GND vs ISEN) and Pin 8 (IPROPI vs nFAULT) differ. | |
| Voltage | 6.5V - 45V | 6.5V - 45V | 9V - 36V | 6.5V - 45V / 9V - 36V — matched; PT2470: Narrower voltage range. | |
| Current | 3.6A | 3.6A | 3.6A | 3.6A — matched; PT2470: matched | |
| Interface | Integrated | External Resistor | - | External Resistor — Requires external sense resistor; target is integrated. | |
| Rds(On) | 565 mΩ | - | 500 mΩ | 500 mΩ — Lower RDS(on) is better. | |
| Temperature | -40°C to 125°C | - | -40°C to 125°C | -40°C to 125°C — matched |
Application & sourcing insights
Questions & answers
Verified drop-in options for DRV8870DDAR are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.