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FAN5067

ACPI Dual Switch Controller

Fairchild Semiconductor 

FAN5067

PRODUCT SPECIFICATION

Table 2. State Transition Table

Initial Control Signal

000

001

010

011

100

101

110

111

000

—

x

-

x

—

x

—

S0

001

S5

—

S5

-

S5

—

S5

S0

010

—

x

-

x

—

x

—

S0

011

S5

—

S5

—

S5

—

S5

S0

100

—

x

—

x

—

x

—

S0

101

S5

—

S5

—

S5

—

S5

S0

110

—

x

—

x

—

x

—

S0

111

S5

S3

S5

S3

S5

S3

S5

—

Notes:

1. Control Signal order: PWROK, SLP_S3, SLP_S5.

2. Dash (—) signifies that no state change takes place.

3. X signifies that the state transition is blocked, and the FAN5067 remains in the S5 state.

2V

tDT

2V

SLP_S3#

PWROK

OUTPUT 1

2V

2V

tDT

2V

OUTPUT2

tOT

2V

Figure 2. Deadtime and Overlap Time Measurements

OUTPUT

2V

tOT

2V

OUTPUT2

STBY

MAIN

SLP_S3#

PWROK

STBY

MAIN

SLP_S5#

DUAL

Figure 3. Control Logic for Dual Voltages and Memory Voltages

VADJ

6

REV. 1.0.1 5/2/02

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