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2543 UDN/UDQ2543B OUT4 K OUT3 GROUND GROUND OUT2 K OUT1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN 4 IN3 ENABLE GROUND GROUND V CC IN 2 IN 1 PROTECTED QUAD POWER DRIVER Providing interface between low-level logic and power loads to 100 W, the UDx2543B and UDx2543EB quad power drivers combine AND logic gates and high-current bipolar outputs. Each of the four independent outputs can sink up to 700 mA in the ON state. The outputs have a minimum breakdown voltage (load dump) of 60 V and a sustaining voltage of 35 V. The inputs are compatible with most TTL, DTL, LSTTL, and 5 V CMOS and PMOS logic systems. Over-current protection has been designed into each channel of the UDx2543B/EB and typically occurs at 1 A. It protects any one channel from output short circuits with supply voltages up to 25 V. When the maximum output current is reached, that output stage is driven linearly. If the over-current condition continues, that output’s thermal limiting will operate, limiting that output’s power dissipation to approximately 2.4 W. The outputs also include diodes for voltage clamping with inductive loads such as relays, solenoids, or dc stepper motors. These devices are supplied in a 16-pin power DIP of batwing construction (suffix ‘B’) to provide for maximum package power dissipation. They are also available in a 28-lead PLCC (suffix ‘EB’) for surface-mount applications. All devices are rated for continuous operation over the temperature range of -20°C to +85°C (UDN2543B/ EB) or for use in automotive applications over an extended temperature range as the UDQ2543B/EB. Data Sheet 29317.2B Dwg. PP-017-1 ABSOLUTE MAXIMUM RATINGS at TA = 25°C Output Voltage, VOUT . . . . . . . . . . . . . 60 V Over-Current Protected Output Voltage, VOUT . . . . . . . . . . . . . . . . . . . . . . . 25 V Output Current, IOUT . . . . . . . . . . . . . 1.0 A* Supply Voltage, VCC . . . . . . . . . . . . . . 7.0 V Input Voltage, VIN or VEN . . . . . . . . . . 18 V Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . See Graph Operating Temperature Range, TA (UDN2543B/EB) . . . . -20°C to +85°C (UDQ2543B/EB) . . . . -40°C to +85°C Storage Temperature Range, TS . . . . . . . . . . . . . . . -55°C to +150°C *Outputs are peak current limited at approximately 1.0 A per driver. See Circuit Description and Applications for further information. FEATURES I I I I I 700 mA Output Current per Channel Low Output-Saturation Voltage Integral Output Transient-Suppression Diodes TTL, CMOS, PMOS, NMOS Compatible Inputs Independent Over-Current Protection for Each Output Always order by complete part number: Part Number UDN2543B UDN2543EB UDQ2543B UDQ2543EB Package 16-Pin DIP 28-Lead PLCC 16-Pin DIP 28-Lead PLCC Operating Temperature -20°C to +85°C -20°C to +85°C -40°C to +85°C -40°C to +85°C 2543 PROTECTED QUAD POWER DRIVER FUNCTIONAL BLOCK DIAGRAM (1 OF 4 CHANNELS) V CC K ENABLE IN N THERMAL LIMIT OUTN