Low output-saturation voltages at high load currents are provided by UDN2596A and UDN2597A sink driver ICs. These devices can be used as interface buffers between standard low-power digital logic(particularly MOS) and high-power loads such as relays, solenoids, stepping motors, and LED or incandescent displays. The eight satu-rated sink drivers in each device feature high-voltage, high-current open-collector outputs. Transient suppression clamp diodes and minimum 35 V output sustaining voltage allow their use with many inductive loads.The saturated (non-Darlington) NPN outputs provide low collector-emitter voltage drops as well as improved turn-off times due to an active pull-down function within the output predrive section. TheUDN2596A is for use with output loads to 500 mA while theUDN2597A is for use with loads to 1 A. Adjacent outputs may be paralleled for higher load currents.Inputs require very low input current and are activated by a low logic level consistent with the much greater sinking capability associ-ated with NMOS, CMOS, and TTL logic. The UDN2596A and UDN2597A are rated for use with 5 V logic levels.Both devices are furnished in 20-pin DIP packages with copper leadframes for improved thermal characteristics. The UDN2596A is also available for operation between -40°C and 85°C. To order,change the prefix from ‘UDN’ to ‘UDQ’.

Features

Non-Inverting Function
Low Output ON Voltages
Up to 1.0 A Sink Capability
50 V Min. Output Breakdown
Output Transient-Suppression Diodes 2596 AND 2597
Output Pull-Down for Fast Turn-Off
TTL, CMOS Compatible Inputs
Automotive Capable