ULN2003AP/AFW is a high-voltage, high-current darlington driver produced by Toshiba. It includes seven NPN darlington pairs. All units feature integral clamp diodes for switching inductive loads. Applications include relay, hammer, lamp and display (LED) drivers.
This manual describes the Toshiba ULN2003 series Darlington driver ICs, including the ULN2003AP/AFW and ULN2004AP/AFW variants. It lists key features such as a 500 mA maximum output current per channel, 50 V sustaining voltage, and integral clamp diodes for inductive loads. Package options are DIP‑16 (AP) and SOL‑16 (AFW).
The document includes electrical characteristics, maximum ratings, recommended operating conditions, test circuits, and safety precautions. It also provides mechanical dimensions, weight, and legal restrictions for product use.
| Output current (single output) | 500 mA max |
|---|---|
| High sustaining voltage output | 50 V min |
| Package type (AP) | DIP‑16 pin |
| Package type (AFW) | SOL‑16 pin |
| Output sustaining voltage (VCE(sus)) | -0.5 ~ 50 V |
| Clamp diode reverse voltage (VR) | 50 V |
| Operating temperature range | -40 °C to 85 °C |
| Storage temperature range | -55 °C to 150 °C |
Each output can source up to 500 mA maximum.
The device is rated for operation from –40 °C to 85 °C.
The IC has no built‑in protection; excess current or overvoltage can destroy it, so proper grounding and design of output, common and GND lines are essential.
Two packages are offered: DIP‑16 (AP) and SOL‑16 (AFW).