SA555D

LM555/NE555/SA555 Single Timer www.fairchildsemi.com Features High Current Drive Capability (200mA) Adjustable Duty Cycle Temperature Stability of 0.005%/°C Timing From µSec to Hours Turn off Time Less Than 2µSec Applications Precision Timing Pulse Generation Time Delay Generation Sequential Timing Description The LM555/NE555/SA555 is a highly stable controller capable of producing accurate timing pulses. With a monostable operation, the time delay is controlled by one external resistor and one capacitor. With an astable operation, the frequency and duty cycle are accurately controlled by two external resistors and one capacitor. 8-DIP 1 8-SOP 1 Internal Block Diagram R GND 1 Trigger 2 Comp. R R 8 Vcc Discharging Tr. 7 Discharge Output 3 OutPut Stage F/F Reset 4 Vref Comp. 6 Threshold Control 5 Voltage ©2002 Fairchild Semiconductor Corporation Rev. 1.0.3 LM555/NE555/SA555 Absolute Maximum Ratings (TA = 25°C) Parameter Supply Voltage Lead Temperature (Soldering 10sec) Power Dissipation Operating Temperature Range LM555/NE555 SA555 Storage Temperature Range Symbol Value Unit VCC 16 V TLEAD 300 °C PD 600 mW TOPR 0 ~ +70 °C -40 ~ +85 TSTG -65 ~ +150 °C 2 LM555/NE555/SA555 Electrical Characteristics (TA = 25°C, VCC = 5 ~ 15V, unless otherwise specified) Parameter Supply Voltage Supply Current (Low Stable) (Note1) Timing Error (Monostable) Initial Accuracy (Note2) Drift with Temperature (Note4) Drift with Supply Volta...