Texas Instruments LM4570LQX/NOPB, Fully Integrated Brushed DC Motor Driver, Parallel Interface, Power MOSFET, Half Bridge (2), 192mA Output, 2.4V ~ 5.5V Supply, 8-WQFN Exposed Pad, -40°C ~ 150°C.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Motor type - AC, DC | Brushed DC |
| Voltage - load | 2.4V ~ 5.5V |
| Supply voltage | 2.4V ~ 5.5V |
| Output current | 192mA |
| Interface | Parallel |
| Operating temperature | -40°C ~ 150°C (TJ) |
| Package | Bulk |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Technology | Power MOSFET |
| Applications | General Purpose |
| Case | 8-WQFN Exposed Pad |
| Output configuration | Half Bridge (2) |
The 150°C TJ ceiling gives headroom for self-heating in a compact 2x2 mm LLP package — but that exposed pad is not optional: you must solder it to a PCB thermal land and via array to the ground plane to keep the die cool at full 192 mA output. Without that thermal path, the part will hit thermal shutdown well before the electrical limit.
For BOM planning, this is a standard-shelf part that can be dual-sourced through independent distribution.
Yes. The 8-WQFN package includes an exposed thermal pad (listed as 8-LLP-EP). It must be soldered to a PCB land and connected to the ground plane for thermal management.
The continuous output current rating is 192 mA per half-bridge. Peak current may be higher for short durations, but the steady-state motor current must stay under this limit.
Yes. The supply voltage range of 2.4 V to 5.5 V covers both 3.3 V and 5 V logic rails. The parallel control inputs are referenced to the supply voltage, so a 3.3 V microcontroller can drive the direction and brake pins directly when VCC is set to 3.3 V.