RT4813

Copyright © 2016 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS4813-00

April

2016

www.richtek.com

11

I

Function Register Address

b[7]

(MSB)

b[6]

b[5]

b[4]

b[3]

b[2]

b[1]

b[0]

(LSB)

Config

0X01

Meaning

Reversed ILIM_OFF

IPCHG

DRV_SEL<2:0>

SSFM

Default

0

0

0

1

1

1

1

0

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

ILIM_OFF

Boost valley current limit setting

0 : Boost current limit enable (default)

1 : Boost current limit disable

IPCHG

Pre-charge current setting.

00 : 0.5A

01 : 1A (default)

10 : 1.5A

11 : 2A

DRV_SEL<2:0>

LG driver driving capability

000 : Slowest

:

:

111 : Fastest (default)

SSFM

Spread spectrum setting.

0 : Spread spectrum disable (default)

1 : Spread spectrum enable

Function Register Address

b[7]

(MSB)

b[6]

b[5]

b[4]

b[3]

b[2]

b[1]

b[0]

(LSB)

Charger

Control 3

0X03

Meaning

ILIM_SS<7:4>

ILIM_AVG<3:0>

Default

0

0

0

0

0

0

0

0

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

ILIM_SS<7:4>

Soft-start period boost current limit setting. The default current is 1500mA.

Code

Current

Code

Current

Code

Current

Code

Current

0000

1500mA

(default)

0100

1500mA

1000

2500mA

1100

4500mA

0001

1500mA

0101

1500mA

1001

3000mA

1101

5000mA

0010

1500mA

0110

1500mA

1010

3500mA

1110

5500mA

0011

1500mA

0111

2000mA

1011

4000mA

1111

6000mA

ILIM_AVG<3:0>

Average Output Current limit setting. The default current is 3000mA.

Code

Current

Code

Current

Code

Current

Code

Current

0000

3100mA

(Default)

0100

2420mA

1000

1740mA

1100

1060mA

0001

2930mA

0101

2250mA

1001

1570mA

1101

890mA

0010

2760mA

0110

2080mA

1010

1400mA

1110

720mA

0011

2590mA

0111

1910mA

1011

1230mA

1111

550mA