MIC2981/2982 Micrel, Inc. MIC2981/2982 High-Voltage High-Current Source Driver Array General Features The MIC2981/82 is an 8-channel, high-voltage, high-current Output voltage to 50V source driver array ideal for switching high-power loads from Output current to 500mA logic-level TTL, CMOS, or PMOS control signals. Transient-protected outputs Integral clamp diodes These drivers can manage multiple loads of up to 50V and TTL, CMOS, or PMOS compatible inputs 500mA, limited only by package power dissipation. Applications Micrels MIC2981/82 features inputs compatible with 5V TTL and 5V to 15V CMOS or PMOS logic outputs. Micrels Relay and solenoid switching dual-marked device replaces either UDN2981 or UDN2982 Stepping motor devices. LED and incandescent displays The MIC2981/82 is available in the 18-pin plastic DIP and 18-lead wide SOP package. Both devices operate in the industrial temperature range. Ordering Information Part Number Reference Manufacturing* PbFree Temperature Range Package MIC2981BN** MIC2981/82BN MIC2981/82YN 40C to +85C 18-pin DIP MIC2982BN** MIC2981/82BN MIC2981/82YN 40C to +85C 18-pin DIP MIC2981BWM** MIC2981/82BWM MIC2981/82YWM 40C to +85C 18-pin wide SOP MIC2982BWM** MIC2981/82BWM MIC2981/82YWM 40C to +85C 18-pin wide SOP *Order entry P/N. **Orders for MIC2981BN or MIC2982BN will be filled with dual-marked MIC2981/82BN. **Orders for MIC2981YN or MIC2982YN will be filled with dual-marked MIC2981/82YN. **Orders for MIC2981BWM or MIC2982BWM will be filled with dual-marked MIC2981/82BWM. **Orders for MIC2981YWM or MIC2982YWM will be filled with dual-marked MIC2981/82YWM. Functional Diagrams IN1 OUT1 V S IN2 OUT2 20k IN3 OUT3 1.8k IN4IN7 OUT4OUT7 4 IN 800 OUT IN8 OUT8 1.5k GND V GND S Typical MIC2891/2982 Source Driver MIC2981 MIC2982 Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 MIC2981/2982 Micrel, Inc. Pin Configuration IN1 1 18 OUT1 IN2 2 17 OUT2 IN3 3 16 OUT3 IN4 4 15 OUT4 IN5 5 14 OUT5 IN6 6 13 OUT6 IN7 7 12 OUT7 IN8 8 11 OUT8 V 9 10 GND S 18-Pin DIP (N) 18-Pin Wide SOP (WM) Pin Description Pin No. Pin No. Pin Name Pin Function 18 IN1IN8 Input 1 through Input 8: Base drive to driver input transistor. 9V Supply Input S 10 GND Ground 1118 OUT8OUT1 Output 8 through Output 1: Emitter of Darlington driver output. MIC2981/2982 2 June 2005