MCP18480 datasheet(28/64 Pages) MICROCHIP

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MCP18480

DS20091B-page 28

 2003 Microchip Technology Inc.

FIGURE 2-26:

OVTH Input Rising Threshold

vs. OVO Voltage.

FIGURE 2-27:

OVTH Input Falling

Threshold vs. OVO Voltage.

Data taken with the minimum following conditions:

IPOS = 5 mA

(Enables VPOS at its self-regulating voltage)

OVO = VNEG to 8V

VREFIN = 2.5V, ISET = 10 µA

Use PWRGOOD pin as indicator

Note 1:

VUVTH > VVREFIN

VSENSE = VVNEG

VVFB = VVNEG

VDRAINTH = VVNEG

VCL = VVREFIN

VENABLE = 5V (open)

VRESTART = VVNEG (open)

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

OVO Voltage (V)

TA = -40°C

TA = +70°C

TA = +85°C

TA = +0°C

TA = +25°C

Data taken with the minimum following conditions:

IPOS = 5 mA

(Enables VPOS at its self-regulating voltage)

OVO = VNEG to 8V

VREFIN = 2.5V, ISET= 10 µA

Use PWRGOOD pin as indicator

Note 1:

VUVTH > VVREFIN

VSENSE = VVNEG

VVFB = VVNEG

VDRAINTH = VVNEG

VCL = VVREFIN

VENABLE = 5V (open)

VRESTART = VVNEG (open)

2.474

2.475

2.476

2.477

2.478

2.479

2.480

OVO Voltage (V)

TA = -40°C

TA = +70°C

TA = +25°C

TA = 0°C

TA = +85°C

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