CAT8801RTB-GT3 datasheet(4/7 Pages) ONSEMI

Il numero della parte	CAT8801RTB-GT3

Spiegazioni elettronici	200 nA Microprocessor Power Supply Supervisors Ultra Low 200 nA Supply Current

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CAT8801

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TYPICAL OPERATING CHARACTERISTICS

(VCC = Full range, TA = −40°C to +85°C unless otherwise noted. Typical values at TA = +25°C.)

Figure 1. Power−Up Reset Timeout

Figure 2. Supply Current vs. Temperature

TEMPERATURE (°C)

100

−25

−50

200

250

300

350

100

−25

−50

100

120

140

160

180

200

220

Figure 3. Power−Down Reset Delay vs.

Temperature

Figure 4. Normalized Reset Threshold vs.

Temperature

TEMPERATURE (°C)

100

−25

−50

2.5

3.0

3.5

4.0

4.5

5.0

125

100

−25

−50

0.996

0.997

0.998

0.999

1.000

1.001

1.002

1.003

VCC = 5.5 V

VCC = 1.8 V

VCC = 5.5 V

VCC = 1.8 V

150

Description

Reset Timing

The reset signal is asserted LOW for the CAT8801 when the power supply voltage falls below the threshold trip voltage and

remains asserted for at least 140 ms after the power supply voltage has risen above the threshold.

Figure 5. Reset Timing Diagram

Threshold

Voltage

140ms

minimum

Reset Timeout Period

Power

Supply

Voltage

RESET

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