sa555d-dt STMicroelectronics, sa555d-dt Datasheet
sa555d-dt
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sa555d-dt Summary of contents
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Features ■ Low turn off time ■ Maximum operating frequency greater than 500kHz ■ Timing from microseconds to hours ■ Operates in both astable and monostable modes ■ High output current can source or sink 200mA ■ Adjustable duty cycle ...
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Contents Contents 1 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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NE555 - SA555 - SE555 1 Schematic diagrams Figure 1. Block diagram Figure 2. Schematic diagram + V CC 5kΩ COMP THRESHOLD R CONTROL VOLTAGE FLIP-FLOP Q 5kΩ COMP TRIGGER S INHIBIT/ RESET 5kΩ S RESET S - 8086 Schematic ...
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Absolute maximum ratings and operating conditions 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol V Supply voltage CC T Junction temperature j T Storage temperature range stg Table 2. Operating conditions Symbol ...
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NE555 - SA555 - SE555 3 Electrical characteristics Table +25°C, V amb CC Symbol Parameter = ∝ ) Supply current (R L Low stage +15V CC High state V ...
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Electrical characteristics Table +25°C, V amb CC Symbol Parameter Discharge pin leakage current I dis(off) (output high 10V dis Discharge pin saturation voltage (4) (output low) V dis(sat +15V 15mA CC ...
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NE555 - SA555 - SE555 Figure 3. Minimum pulse width required for triggering Figure 5. Delay time versus temperature Figure 7. Low output voltage versus output sink current Electrical characteristics Figure 4. Supply current versus supply voltage Figure 6. Low ...
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Electrical characteristics Figure 9. High output voltage drop versus output Figure 11. Propagation delay versus voltage level of trigger value 8/20 NE555 - SA555 - SE555 Figure 10. Delay time versus supply voltage ...
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NE555 - SA555 - SE555 4 Application information 4.1 Monostable operation In the monostable mode, the timer generates a single pulse. As shown in external capacitor is initially held discharged by a transistor inside the timer. Figure 12. Typical schematics ...
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Application information Figure 13. Waveforms in monostable operation Figure 14. Pulse duration versus R1C1 4.2 Astable operation When the circuit is connected as shown in and free runs as a multi-vibrator. The external capacitor charges through R discharges through R ...
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NE555 - SA555 - SE555 Figure 15. Typical schematics in astable operation V CC 0.01 Figure 16 shows the actual waveforms generated in this mode of operation. The charge time (output HIGH) is given by 0.693 (R and ...
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Application information Figure 16. Waveforms in astable operation Figure 17. Free running frequency versus R 12/ 0 div OUTPUT VOLTAGE = 5.0V/div CAPACITOR VOLTAGE = 1.0V/div Ω 4.8k , C1= 0.1 , ...
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NE555 - SA555 - SE555 4.3 Pulse width modulator When the timer is connected in the monostable mode and triggered with a continuous pulse train, the output pulse width can be modulated by a signal applied to pin 5. the ...
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Application information Figure 20 shows the waveforms generator by the linear ramp. The time interval is given by: Figure 20. Linear ramp 4.5 50% duty cycle oscillator For a 50% duty cycle, the resistors R period for the output high ...
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NE555 - SA555 - SE555 Figure 21. 50% duty cycle oscillator Out Note that this circuit will not oscillate if R and R cannot bring pin 2 down to 1 4.6 Additional information Adequate power supply by passing ...
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... These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. 16/20 ...
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NE555 - SA555 - SE555 Figure 22. DIP8 package mechanical data Ref Dimensions Millimeters Min. Typ. Max. 5.33 0.38 2.92 3.30 4.95 0.36 0.46 0.56 1.14 1.52 ...
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Package information Figure 23. SO8 package mechanical data Ref ccc 18/20 Dimensions Millimeters Min. Typ. Max. 1.75 0.10 0.25 1.25 0.28 0.48 0.17 0.23 4.80 4.90 5.00 5.80 ...
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... NE555 - SA555 - SE555 6 Ordering information Table 4. Order codes Part number NE555N NE555D/DT SA555N SA555D/DT SE555N SE555D/DT 7 Revision history Date 1-Jun-2003 2004-2006 15-Mar-2007 Temperature range Package DIP8 0°C, +70°C SO8 DIP8 -40°C, +105°C SO8 DIP8 -55°C, + 125°C SO8 Revision 1 Initial release. ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...