Analog Integrated Circuit Device Data

Freescale Semiconductor

19

18730

FUNCTIONAL DEVICE OPERATION

OPERATIONAL MODES

Figure 9. Reset Timing Diagram

POWER SUPPLY VO1_SENSE, VO2_SENSE:

NI_MH

The VBATT voltage rises and is output to VIN1. When

PGOOD2(int) is High, the power switch turns ON to output

the VO1_SENSE voltage to VOUT1. Capacitance value

which is connected to VO1_SENSE should be higher than

the capacitor connected to VOUT1.

The VBATT voltage rises or falls and is output to VIN2.

When PGOOD2(int) is High, the power switch turns ON to

output the VO2_SENSE_IN voltage to VOUT2. If you turn

DDC2 OFF using the register, the power switch 2 also turns

OFF. Capacitance value which is connected to

VO2_SENSE_IN should be higher than the capacitor

connected to VOUT2.

PGOOD1(Int)

PGOOD1

SLEEP(Int)

Table 10. Output Voltage of VO1_SENSE

Address: 0011(28)

B7

B6

B5

B4

B3

B2

B1

S_Off_VO1_SENSE

VO1_SENSE [V](29)

L

L

L

L

L

L

L

X

1.613

L

L

L

L

L

L

H

X

1.625

L

L

L

L

L

H

L

X

1.638

L

L

L

L

H

L

L

X

1.663

L

L

L

H

L

L

L

X

1.713

L

L

H

L

L

L

L

X

1.813

L

H

L

L

L

L

L

X

2.013

H

L

L

L

L

L

L

X

2.413

H

L

L

L

L

L

H

X

2.425

H

L

L

L

L

H

L

X

2.438

H

L

L

L

H

L

L

X

2.463

H

L

L

H

L

L

L

X

2.513

H

L

H

L

L

L

L

X

2.613

H

H

L

L

L

L

L

X

2.813

H

H

H

H

H

H

H

X

3.200

Notes

28.

All combinations of input are not included.

29.

Operation is not guaranteed when VO1_SENSE input voltage is 1.8 V or lower. By connecting a diode between VIN1

and VO1_SENSE, VIN1 can output voltage higher (with the voltage difference Vf) than VO1_SENSE.