This file is the datasheet of ULQ2801A-ULQ2805A series, which contains the features, characteristics, pin diagram and other information of the series.
The ULQ2801A‑ULQ2805A family consists of eight Darlington transistors with common emitters and integrated suppression diodes, offered in an 18‑lead plastic DIP package. The devices feature an input‑opposite‑output pinout to simplify board layout and can be paralleled for higher current capability.
Key electrical ratings include a 50 V output voltage rating, 500 mA continuous collector current, and operation over a temperature range of –40 °C to 105 °C. Thermal resistance is limited to 55 °C/W, and the devices support various logic families with specific input resistor configurations for each model.
| Output Voltage (V_O) | 50 V |
|---|---|
| Continuous Collector Current (I_O) | 500 mA |
| Power Dissipation (P_R) per Darlington pair | 1.0 W |
| Operating Ambient Temperature Range | -40 °C to 105 °C |
| Storage Temperature Range | -55 °C to 150 °C |
| Thermal Resistance Junction‑ambient (RθJA) | 55 °C/W |
| Input Voltage (V_I) typical for ULQ2802A‑2804A | 30 V |
| Output Leakage Current | 50 pA |
| Continuous Base Current (I_B) | 25 mA |
The devices can deliver up to 500 mA continuous collector current.
They operate from –40 °C up to 105 °C ambient temperature.
Yes, outputs may be paralleled for higher current capability.
They are supplied in an 18‑lead plastic DIP (DIP18) package.