RT5021 Datasheet, PDF (52/67 Pages) Richtek Technology Corporation – Channels DC/DC PMU with Li-ion Battery Charger

RT5021
Address
Name
Register Address
Bit7
(MSB)
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
(LSB)
Meaning
TIMER [3:0]
ENCH USUS ISETU ISETL
A7 0x07 Default
0
1
0
0
0
0
0
0
Read/Write R/W
R/W R/W R/W
R/W
R/W
R/W
R/W
TIMER [3:0]
Define fast charger safe charging time.
Fast charging timeout time = (TIMER [3:0] + 1) hours. The default voltage is 5
hours.
Note : pre-charge timeout time = fast charge time/8.
Enable charger
ENCH
0 : Enable charger
1 : Disable charger
VIN Suspend control
USUS
0 : No suspend
1 : Suspend
VIN Current limit setting :
ISETL ISETU
VIN Input
Current Limit
0
0
95mA (default)
ISETU and ISETL
0
1
1
0
475mA
1A
1
1
1.5A
Note: When Charger Type Detection finds the charger is Dedicated Charging Port
(Sony or Apple Charger),
ISETU/ISETL would set to be 475mA automatically.
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
52
is a registered trademark of Richtek Technology Corporation.
DS5021-01 April 2013