NE558C LINEAR INTEGRATED CIRCUIT QUAD TIMER The NE558 series are monolithic Quad Timers which can be used to produce four entirely independent timing functions. These highly stable, general purpose con- trollers can be used in a monostable mode to produce accurate time delays, from microseconds to hours. The time is precisely controlled by one external resistor and one capacitor in the time delay mode. A stable mode can be operated by using two of four time sections. FEATURES * Wide Supply Voltage Range: 4.5V To 16V * 100mA Output Current Per Section * Edge Triggered Without Coupling Capacitor Time Period Equals RC Output Independent Of Trigger Conditions APPLICATIONS * Quad One-Shot Sequential Timing * Precision Timing * Time Delay Generation BLOCK DIAGRAM OUTPUT D TIMING D TRIGGER 0 RESET OUTPUT STAGE OUTPUT OUTPUT A TIMING A TRIGGER A CONTROL VOLTAGE 16 DIP I ORDERING INFORMATION Device Package | Operating Temperature NE558CN 16 DIP 0~ +70C OUTPUT Re STAGE C Vee TRIGGERB = TIMING B= OUTPUT B & SANISUNG Electronics 490 NE558C LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta = 25C) Characteristic Symbol Value Unit Supply Voltage Veo _ 16 Vv Lead Temperature (soldering 10 sec) Tiead 300 C Power Dissipation Pp 600 mw | _ Operating Temperature Range Topr O~ +70 c Storage Temperature Range Taig -65 ~ + 150 C ELECTRICAL CHARACTERISTICS (Vcc =5 to 15V, Ta= 25C, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Unit Supply Voltage Voc 45 16 Vv Supply Current lec Voc = 15V, reset voltage = 15V 16 36 mA Initial Accuracy *2 | 8 | % Drift with Temperature | Ri=2K0 to 100K9, C= uF 30 150 | PPMIC Drift with Supply Voltage 0.1 0.9 %N Trigger Voltage Vir Voce = 15V 0.8 1.5 2.4 v 1Trigger Current la Trigger voltage = OV 5.0 100 uA ?Reset Voltage Vee Reset 0.8 1.5 2.4 V 2Reset Current Ire : Reset 50 500 uA Threshold Voitage Vou 0.63 x Vc v Threshold Current Ite 15 nA 43Output Voltage Vout i= 1omA 01 o4 Vv I, = 100mA 1.0 2.0 Output Leakage Current | fou 10 500 nA Propagation Delay Time Tp 1.0 2S Rise Time , Ty I. =100mA 100 ns Fall Time Tr i. = 100MA 100 ns NOTES: 1. The trigger functions only on the falling edge of the trigger pulse only after previously being high. After reset the trigger must be brought high and then tow to implement triggering. 2. For reset below 0.8V, outputs set low and trigger inhibited. 3. Output structure is open collector which requires a pull up resistor to Voc to sink current. The output is nomally low sinking current. & SAMSUNG Electronics 491