Acer 6492 manual Battery and Charger, Power Control Pin Description, State Output Pin

Hibernate(S4)	(8)
Soft Off(S5)	(9)

Mechanical off is a condition where all power except the RTC battery has been removed from the system.

1.Initial to On state: When the AC adapter or Battery pack has been plugged into the system, the PC97551 will be reset and initial all output pins then the system goes into Initial state and waiting for power on event. If the power button is pressed then the system will go into the ON state.

2.ON to Standby state: The system will go into the Standby state when 963L receives the POS command.

3.ON to Suspend state: The system will go into Suspend state when SB460 receives the S2R command.

4.ON to Hibernate state: The system will go into Hibernate state when SB460 receives the S2D command.

5.ON to Soft Off state: The system will go into Soft Off state when SB460 receives the Soft off command.

6.Standby to ON state: The system will go into ON state when the system receives any wake up events, for example, power button, Lid switch.

7.Suspend to ON state: The system will go into ON state when the power button is pressed.

8.Hibernate to ON state: The system will go into ON state when the power button is pressed.

9.Soft Off to ON state: The system will go into ON state when the power button is pressed.

Power Control Pin Description

The following table is NS PC97551 power control pin description:

State			Output Pin
	S5_ON	3VAUXEN		SUSON	MAINON	VRON
Initial	0	0		0	0	0
ON(S0)	1	1		1	1	1
Standby(S1)	1	1		1	1	1
Suspend(S3)	1	1		1	0	0
Hibernate(S4)	1	1		0	0	0
Soft Off(S5)	1	0		0	0	0

Battery and Charger

Current Amplifier: MAX8724

Charge PWM Control: IMD2AT108

PARAMETER	CONDITIONS	MIN	TYP	MAX	UNITS
Min Input Range	VA	18	19	20	V
Input Low Voltage	M/A-, D/C-, BL/C-, REFON			0.8	V
Input high Voltage	M/A-, D/C-, BL/C-, REFON	2.5		5.5	V
Charge Voltage	CV-SET =0V	15.93	16.09	16.25	V
Charge Voltage	CV-SET =5V	16.95	17.11	17.27	V
Charge Current	CC-SET =0.5V (for Li -ion)	0.1	0.25	0.4	A
Charge Current	CC-SET =5V (for Li-ion)	3.73	3.93	4.13	A
Charge PWM Frequency			200		KHz
Efficiency	VA=19V Output 12V/1.7A		91		%

3-13.1. DC to DC Converter

TI TPS51120 PWM chip: 5V & 3.3V &15V

PARAMETER	CONDITIONS	MIN	TYP	MAX	UNITS
5V	Current 0-3A	4.8	5.0	5.2	V
3.3V	Current 0-3A	3.14	3.35	3.76	V

Chapter 1 43