ULN2803

ULN2803 High-current Darlington Transistor Arrays Features ➢ 500-mA-Rated Collector Current(single output) ➢ High-Voltage Outputs:50V ➢ Output Clamp Diodes ➢ Inputs Compatible With Various Types of Logic ➢ Relay-Driver Applications General Description The ULN2803 is high-voltage high-current Darlington transistor arrays each containing eight open collector common emitter pairs. Each pair is rated at 500mA. Suppression diodes are included for inductive load driving, the inputs and outputs are pinned in opposition to simplify board layout. These devices are capable of driving a wide range of loads including solenoids, relays, DC motors, LED displays, filament lamps, thermal print-heads and high-power buffers. The ULN2803 is available in SOP18 and QFN20(4x4) packages. Pin Assignments Connection Diagram Ordering Information Order No. Package Packing ULN2803 SOP18 Tape and Reel, 1500 ULN2803QN QFN20(4x4) Tape and Reel, 3000 www.belling.com.cn 1 V1.3 ULN2803 Pin Descriptions Pin Number Pin Name Function SOP18 QFN20 1 2 1B Input pair1 2 3 2B Input pair2 3 4 3B Input pair3 4 5 4B Input pair4 5 6 5B Input pair5 6 7 6B Input pair6 7 8 7B Input pair7 8 9 8B Input pair8 9 10 E Common Emitter (ground) 10 11 COM Common Clamp Diodes 11 12 8C Output pair8 12 13 7C Output pair7 13 14 6C Output pair6 14 15 5C Output pair5 15 16 4C Output pair4 16 17 3C Output pair3 17 18 2C Output pair2 18 19 1C Output pair1 1, 20 NC No Connection Functional Block Diagram Note: All resistor values shown are nominal. The collentor-emitter diode is a parasitic structure and should not be used to conduct current.If the collector(s) go below ground an external Schoottky diode should be added to clamp negative undershoots. www.belling.com.cn 2 V1.3 ULN2803 Absolute Maximum Ratings (1) At 25°C free-air temperature (unless otherwise noted) Symbol Parameter VCC VR VI ICP IOK ITE Output clamp current Total emitter-terminal current TA Operating free-air temperature range (1) Min Max Unit Collector to emitter voltage 50 V Clamp diode reverse voltage(2) Input voltage(2) Peak collector current 50 30 500 V V mA 500 –2.5 mA A +105 °C See typical characteristics –30 θJA Thermal Resistance Junction-to-Ambient(3) 63 θJC Thermal Resistance Junction-to-Case(4) 12 TJ TSTG Operating virtual junction temperature –40 Storage temperature range °C/W 150 °C 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to the emitter/substrate terminal E, unless otherwise noted. (3) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. (4) Maximum power dissipation is a function of TJ(max), θJC, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJC. Operating at the absolute maximum TJ of 150°C can affect reliability. Recommended Operating Conditions Symbol VCC www.belling.com.cn Parameter Collector to Emitter voltage 3 Min - Max 50 Unit V V1.3 ULN2803 Electrical Characteristics(TA=+25℃, unless otherwise specified) Parameter V I(on) V CE(sat) On-state input voltage Collector-emitter saturation voltage Test Figure Figure 6 Figure 5 Figure 1 ICEX Collector cutoff current Figure 2 V MIN Test Conditions TYP MAX IC = 200 mA -- -- 2.4 IC = 250 mA -- -- 2.7 IC = 300 mA -- -- 3 II = 250 μA, IC = 100 mA -- 0.9 1.1 II = 350 μA, IC = 200 mA -- 1 1.3 II = 500 μA, IC = 350 mA -- 1.2 1.6 VCE = 50 V, II = 0 -- -- 50 II = 0 -- -- 100 VCE = 2 V Unit V V μA VCE = 50 V, TA = +105°C F Clamp forward voltage Figure 8 IF = 350 mA -- 1.7 2 V I(off) Off-state input current Figure 3 VCE = 50 V, IC = 500 μA 50 65 -- μA II Input current Figure 4 VI = 3.85 V 0.93 1.35 mA IR Clamp reverse current Figure 7 Ci Input capacitance ----- I VR = 50 V TA = 70°C VI = 0, f = 1 MHz --- 100 15 25 50 μA pF Switching Characteristics (TA = +25°C, unless otherwise specified) Parameter t t PLH PHL V OH Propagation delay time, low- to high-level output Propagation delay time, high- to low-level output Test Conditions MIN TYP MAX UNIT See Figure 9 0.25 1 μs See Figure 9 0.25 1 μs High-level output voltage VS = 50 V, IO = 300 mA, after switching See Figure 9 www.belling.com.cn 4 VS–20 mV V1.3 ULN2803 Parameter Measurement Information www.belling.com.cn 5 V1.3 ULN2803 Notes: a. CL includes prove and jig capacitance. b. VIH=3V www.belling.com.cn 6 V1.3 ULN2803 Outline Dimensions SOP18 www.belling.com.cn 7 V1.3 ULN2803 QFN20(4x4) www.belling.com.cn 8 V1.3