SLC556 Timing Circuit The SLC556 monolithic timing circuit is a highly stable controller capable of producing accurate time delays, or oscillation. • • • Timing From Microseconds Through Hours Operates in Both Astable and Monostable Modes High Current Output Can Source or Sink 200 mA PIN ASSIGNMENT LOGIC DIAGRAM SLS System Logic Semiconductor ORDERING INFORMATION SLC556N Plastic SLC556D SOIC TA = -10° to 70° C for all packages SLC556 MAXIMUM RATINGS * Symbol VCC Tstg Parameter Supply Voltage Storage Temperature Value Unit 18 V -60 to +85 °C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit VCC Supply Voltage 4.5 16 V TA Operating Temperature, All Package Types -10 +70 °C ELECTRICAL CHARACTERISTICS (TA =+25°C) Symbol Parameter Test Conditions Guaranteed Limits Min ICC Unit Max Supply Current VCC=5.0 V, RL =∞ VCC=15 V, RL=∞ 12 30 mA Timing Error R=1.0 kΩ to 100 kΩ Initial Accuracy C = 0.1 µF VCC=5.0 V and VCC=15 V 4 % Vth Threshold Voltage VCC=5.0 V VCC=15 V 2.6 9 4.0 11 V VT Trigger Voltage VCC=5.0 V VCC=15 V 1.1 4.5 2.2 5.6 V IT Trigger Current V06,08 =0 V, VCC=15 V -2 µA VR Reset Voltage VCC=15 V 1.0 V IR Reset Current V04,10 =0 V, VCC=15 V -0.6 mA Ith Threshold Current (Note 1) V02,12 =10 V, VCC=15 V 0.25 µA Idis Discharge Leakage Current VCC=15 V, V01,13 =15 V 100 nA VREF Control Voltage Level VCC=15 V VCC=5.0 V 11 4.0 V VOL Output Voltage Low (VCC=15 V) Isink=10 mA, Isink=50 mA, Isink=100 mA, VCC=5.0 V, Isink=5.0 mA 0.4 9.0 2.6 V 0.25 0.75 2.3 0.35 VOH Output Voltage High Isource=200 mA,VCC=15 V Isource=100 mA, VCC=15 V Isource=100 mA, VCC=5.0 V 12 12.75 2.75 V tOLH Rise Time of Output VCC=15 V 300 ns tOHL Fall Time of Output VCC=15 V 300 ns Note 1. This will determine the maximum value of RA + RB for 15 V operation. The maximum total R=20 MΩ. SLS System Logic Semiconductor