Product Summary

The ULN2003AC is a high-voltage, high-current Darlington transistor array. The device consists of seven npn Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability. Applications of the ULN2003AC include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. For 100-V (otherwise interchangeable) versions of the ULN2003AC, see the SN75468 and SN75469, respectively.

Parametrics

ULN2003AC absolute maximum ratings: (1)Collector-emitter voltage: 50 V; (2)Clamp diode reverse voltage: 50 V; (3)Input voltage, VI: 30 V; (4)Peak collector current: 500 mA; (5)Output clamp current, IOK: 500 mA; (6)Total emitter-terminal current: –2.5 A; (7)Operating free-air temperature range, TA, : –20℃ to 70℃; (8)Package thermal impedance, θJA: D package: 73℃/W; N package: 67℃/W; NS package: 64℃/W; (9)Package thermal impedance, θJC: D package: 36℃/W; N package: 54℃/W; (10)Operating virtual junction temperature, TJ: 150℃; (11)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃; (12)Storage temperature range, Tstg: –65℃ to 150℃.

Features

ULN2003AC features: (1)500-mA-Rated Collector Current(Single Output); (2)High-Voltage Outputs: 50 V; (3)Output Clamp Diodes; (4)Inputs Compatible With Various Types of Logic; (5)Relay-Driver Applications; (6)Designed to Be Interchangeable With Sprague ULN2001A Series.

Diagrams

ULN2003AC logic diagram

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