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TLC555

SLFS043I – SEPTEMBER 1983 – REVISED JULY 2019

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Copyright © 1983–2019, Texas Instruments Incorporated

Typical Applications (continued)

(1)

Sample results. Results may vary with populated components, board layout, and samples used.

The table below gives the ESD protection levels recorded for different supply voltages and external components

populated. Using only passive components to protect the TLC555 with a single 15-V supply is not recommended

because the higher voltage allows for an unacceptable amount of current to flow through the device.

Table 2. ESD test result table

Supply Voltage

5 V

8 kV

12 kV

15 V

Not recommended

12 kV

9 Power Supply Recommendations

The TLC555 requires a voltage supply greater than or equal to 2 V, 3 V, or 5 V based the coldest ambient

temperature supported and a supply voltage less than or equal to 15 V. Adequate power supply bypassing is

necessary to protect associated circuitry and provide stable output pulses. Minimum recommended is 0.1-μF

ceramic in parallel with 1-μF electrolytic. Place the bypass capacitors as close as possible to the TLC555 and

minimize the trace length.