ULN2803,04AP/AFW is a high-voltage, high-current darlington driver consisting of eight NPN darlington pairs. It features an output current of 500mA (max) and a high sustaining voltage output of 50V (min). It includes output clamp diodes and is compatible with various types of logic inputs. Applications include relay, hammer, lamp, and display (LED) drivers.
The ULN2803 series are high‑voltage, high‑current Darlington driver ICs comprising eight NPN Darlington pairs with integral clamp diodes for switching inductive loads. They are suitable for applications such as relays, lamps, displays and other driver circuits.
The document details maximum ratings, recommended operating conditions, electrical characteristics, package dimensions, power dissipation, and precautions for safe design and use of the device.
| Package type (AP) | DIP‑18 |
|---|---|
| Package type (AFW) | SOL‑18 |
| Weight (DIP‑18) | 1.478 g (typ) |
| Weight (SOL‑18) | 0.48 g (typ) |
| Power dissipation (AFW) | 0.92 W (typ) / 1.31 W (note) |
| Clamp diode reverse voltage | 50 V |
| Operating temperature range | -40 °C to 85 °C |
| Storage temperature range | -55 °C to 150 °C |
The device operates with an input voltage from 0 V to 30 V.
Two packages are offered: DIP‑18 (AP) and SOL‑18 (AFW).