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| Philips Semiconductors Linear Products Product specification Quad timer NE558 DESCRIPTION The 558 Quad Timers are monolithic timing devices which can be used to produce four independent timing functions. The 558 output sinks current. These highly stable, general purpose controllers can be used in a monostable mode to produce accurate time delays; from microseconds to hours. In the time delay mode of operation, the time is precisely controlled by one external resistor and one capacitor. A stable operation can be achieved by using two of the four timer sections. The four timer sections in the 558 are edge-triggered; therefore, when connected in tandem for sequential timing applications, no coupling capacitors are required. Output current capability of 100mA is provided in both devices. PIN CONFIGURATION D1, N Packages OUTPUT A 1 OUTPUT STAGE ff ff OUTPUT STAGE 16 OUTPUT D TIMING A 2 VR VR COMP COMP 15 TIMING D TRIGGER A 3 14 TRIGGER D CONTROL VOLTAGE VCC 4 R1 5 VR R2 13 RESET FEATURES 12 COMP COMP GROUND * 100mA output current per section * Edge-triggered (no coupling capacitor) * Output independent of trigger conditions * Wide supply voltage range 4.5V to 16V * Timer intervals from microseconds to hours * Time period equals RC * Military qualifications pending APPLICATIONS TRIGGER B 6 VR 11 VR 10 TRIGGER C OUTPUT 7 ff ff OUTPUT STAGE TIMING C OUTPUT 8 OUTPUT STAGE 9 OUTPUT C TOP VIEW NOTE: 1. SOL released in large SO package only. * Sequential timing * Time delay generation * Precision timing * Industrial controls * Quad one-shot ORDERING INFORMATION DESCRIPTION 16-Pin Plastic Small Outline Large (SOL) Package 16-Pin Plastic Dual In-Line Package (DIP) TEMPERATURE RANGE 0 to +70C 0 to +70C ORDER CODE NE558D NE558N DWG # 0171B 0406C ABSOLUTE MAXIMUM RATINGS SYMBOL VCC PD Supply voltage Maximum power dissipation TA=25C ambient (still-air)1 N package D package TA TSTG TSOLD Operating ambient temperature range Storage temperature range Lead soldering temperature (10sec max) 1450 1090 0 to +70 -65 to +150 +300 mW mW C C C PARAMETER RATING +16 UNIT V NOTES: 1. Derate above 25C, at the following rates: N package at 11.6mW/C D package at 8.7mW/C August 31, 1994 378 853-0150 13721 Philips Semiconductors Linear Products Product specification Quad timer NE558 DC AND AC ELECTRICAL CHARACTERISTICS TA = 25C, VCC = +5V to +15V, unless otherwise specified. SYMBOL VCC ICC PARAMETER Supply voltage Supply current Timing accuracy (t=RC) tA tA/T tA/VS VTRIG ITRIG VRESET IRESET VTH VOUT Initial accuracy Drift with temperature Drift with supply voltage Trigger voltage1 Trigger current Reset voltage2 Reset current Threshold voltage Threshold leakage Output voltage3 Output leakage tPD tR tF Propagation delay Rise time of output Fall time of output IL=100mA IL=100mA IL=10mA IL=100mA Reset VCC=15V Trigger=0V 0.8 50 0.63 15 0.1 1.0 10 1.0 100 100 0.4 2.0 500 0.8 5 VCC=Reset=15V R=2k to 100k, C=1F 2 30 0.1 5 150 0.9 2.4 100 2.4 500 % ppm/C %/V V A V A xVCC nA V V nA s ns ns TEST CONDITIONS NE558 Min 4.5 16 Typ Max 16 36 UNIT V mA 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 low to implement triggering. 2. For reset below 0.8V, outputs set low and trigger inhibited. For reset above 2.4V, trigger enabled. 3. The 558 output structure is open-collector which requires a pull-up resistor to VCC to sink current. The output is normally low sinking current. August 31, 1994 379 Philips Semiconductors Linear Products Product specification Quad timer NE558 558 EQUIVALENT CIRCUIT VCC RESET TIMING VCONTROL + 3V TRIGGER OUT GND VCC R1 T C1 RL T C1 R1 RL T C1 R1 RL T C2 R1 RL TRIGGER OUTPUT 1 OUTPUT 2 TRIGGER TR 0 TR 0 TR 0 TR 0 OUTPUT 4 OUTPUT 3 TDELA TOUTPUT OUTPUT 1 OUTPUT 2 NOT USED OUTPUT 3 OUTPUT 4 Y TDELAY 3(R1C) TOUT R2C2) Figure 1. Long-Time Delay August 31, 1994 380 Philips Semiconductors Linear Products Product specification Quad timer NE558 VCC R1 RL 2 5 3 TRIG 0 1 13 TIME 1 6 TRIG 0 2 13 10K C1 7 TIME 8 11 TRIG 0 3 13 R1 RL C1 10 TIME 9 14 TRIG 0 4 13 12 R1 RL C1 15 TIME 16 R1 RL C1 START RESET a. Ring Counter VCC START RESET 01 T = RC 02 03 04 b. Expected Waveforms Figure 2. August 31, 1994 381 |
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