(Hong Kong)
Product Summary
The ULN2003A is a high-voltage high-current Darlington transistor array. Each 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 include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. The ULN2003A is a general-purpose array and can be used with TTL and CMOS technologies. The ULN2003A is designed specifically for use with 14V to 25-V PMOS devices.
Parametrics
ULN2003A absolute maximum ratings: (1)Collector-emitter voltage, VCC: 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: 73℃/W; (9)Package thermal impedance, θJC: 36℃/W; (10)Operating virtual junction temperature, TJ: 150℃; (11)Lead temperature for 1.6 mm (1/16 inch) from case for 10 seconds: 260℃; (12)Storage temperature range, Tstg: -65 to 150℃.
Features
ULN2003A 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.
Diagrams
