RT5508WSC datasheet(32/57 Pages) RICHTEK

32 / 57 page

RT5508

is a registered trademark of Richtek Technology Corporation

www.richtek.com

DS5508-01

March

2017

ADDR

Byte

Bits

R/W

Name

Description

Default

0x10

7:3

Reserved

2:0

R/W

VBCPS

Clip threshold setting

000 : 4.0V

001 : 3.75V

010 : 3.6V

011 : 3.45V

100 : 3.3V

101 : 3.15V

110 : 3V

111 : 2.85V

0x11

R/W

CLPE

Clip enable

Reserved

5:4

R/W

BVHYS

Battery voltage recovery hysteresis

00 : battery voltage + 0.05

01 : battery voltage + 0.1

10 : battery voltage + 0.15

11 : battery voltage + 0.2

3:2

R/W

CLIPRR

Rate of Vo threshold recover when Vbat

return

00 : increase by 1/8 of orignal Vo per 1s

01 : increase by 1/8 of orignal Vo per 1.5s

10 : increase by 1/8 of orignal Vo per 2s

11 : increase by 1/8 of orignal Vo per 2.5s

1:0

R/W

CLIPDR

Rate of Vo threshold drop when Vbat is

low

00 : 1/16 of orginal per sample

01 : 1/8 of orginal Vo

10 : 1/4 of orginal Vo

11 : 1 step to target

0x12

15:10

Reserved

9:0

R/W

CPSLP

Clip slope setting :

For example 3Vo/VBAT

CPSLP = 3/DtoA GAIN(DAC+CLASS-D)

0x13

15:0

R/W

VOMIN

Minimum Clip threshold converted from

(V)

For example, minimum clip threshold is

2.5V, then

VO_MIN = 2.5V / DtoA

GAIN(DAC+CLASS-D)

16’b0 : no minimum

0x14

15:0

R/W

SIGMAX

Digital maximum allowable absolute data :

SIG_MAX = max absolute voltage (V) /

DtoA GAIN(DAC+CLASS-D)

This value should be less than 1

16’h4000

RT5508WSC Datasheet(PDF) 32 Page - Richtek Technology Corporation

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