datasheet = Chip-cn-dat/L9110-dat/datasheet-l9110.pdf
good for 3.3V motor to drive
alternative HG7881-dat
APPs
Wide supply voltage range: 2.5V-12V;
Key Specifications & Features
| Feature | L9110 / L9110S | DRV8871 |
|---|---|---|
| Type / Configuration | Dual-channel H-bridge. Can drive two DC motors or one 4-wire stepper motor. | Single full-bridge (one motor or one winding of stepper) driver. |
| Supply Voltage Range | ~2.5V to 12V | ~6.5V to 45V |
| Logic / Input Voltage | TTL/CMOS levels, works with 3.3V & 5V controllers | Up to ~5.5V logic input |
| Current Capability | Continuous: ~0.75-0.8 A per channel; peak ~1.5-2 A short-term | Peak ~3.6 A; RDS(on) ~565 mΩ (HS + LS) |
| Protection Features | Basic: clamp diodes, limited protection | Advanced: undervoltage lockout, overcurrent, thermal shutdown, current regulation |
| Power Efficiency | Higher losses at moderate load; best for low power | Efficient at higher loads; better handling of stress |
| Cost & Size | Very low cost, simple dual-channel module | Higher cost, more complex, industrial-grade |