ULQ2803A Description
Eight common emitter Darlington transistors and inbuilt suppression diodes for inductive loads are found in each of the ULQ2801A-ULQ2804A. Each Darlington has a peak load current rating of 600 mA (500 mA continuous) and can resist at least 50 V while it is off. In order to increase current capacity, outputs may be paralleled.
The ULQ2801A is designed for general purpose applications and comes with a current limit resistor; the ULQ2802A has a 10.5 k input resistor and zener for 14–25 V PMOS; the ULQ2803A has a 2.7 k input resistor for 5 V TTL and CMOS; and the ULQ2804A has a 10.5 k input resistor for 6–15 V CMOS.
ULQ2803A Features
Eight Darlingtons per package
Extended temperature range: -40 to 105 °C
Output current to 500 mA
Output voltage to 50 V
Integral suppression diodes
Versions for all popular logic families
Output can be paralleled
Inputs pinned opposite outputs to simplify board layout
ULQ2803A Applications
Power Management
Consumer Electronics
Portable Devices
Industrial
