RT9481 Datasheet, PDF (37/41 Pages) Richtek Technology Corporation – Easy to Use Power Bank Solution

Register
b[7]
Function
b[6]
b[5]
Address
(MSB)
Meaning ADC_ STA
ADAPTER_STA
MISC_ _{0X25 Default}
0
STA1
Read/
R
Write
1
1
R
R
ADC_STA
ADC status
0 : ADC is idle
1 : ADC conversion is on going
VBUS adapter type
00 : SDP with D+ / D- floating
ADAPTER_STA
01 : SDP
10 : CDP
11 : DCP
RT9481
b[4]
Reversed
0
R/W
b[3]
Reversed
0
R/W
b[0]
b[2]
b[1]
(LSB)
Reversed Reversed Reversed
0
0
0
R/W
R/W
R/W
Register
b[7]
Function
b[6]
b[5]
Address
(MSB)
b[0]
b[4]
b[3]
b[2]
b[1]
(LSB)
MISC_
STA2
Meaning
0X26
Default
Read/
Write
LDSW REG
_STAT
0
R
USBOUTLD
VBUS_STAT
_STAT
0
0
USBOUT_ VDDAUVP_
STAT
STAT
0
0
R
R
R
R
LDSW _
STAT
0
Reversed Reversed
0
0
R
R/W
R/W
Load switch warning. LDSW output current regulation loop active
LDSW REG_STAT
0 : LDSW output current regulation loop is not active
1 : LDSW output current regulation loop is active
USBOUT light load indicator
USBOUTLD_STAT
0 : USBOUT loading > USBOUTLC_LVL or disable
1 : USBOUT loading < USBOUTLC_LVL
VBUS connection status
VBUS_STAT
0 : VBUS has no adapter connect (VBUS < VBUS_POR)
1 : VBUS has adapter connect (VBUS > UVLO & VBUS > ISENSN + VSLP)
USBOUT device connection status
USBOUT_STAT
0 : USBOUT has no device connect
1 : USBOUT has device connect
VDDA under voltage protect, disable SWCHG, LDSW, DCP Control, Adapter Detection, ADC and TS driver
VDDAUVP_STAT
when VDDAUVP is occur.
0 : VDDA UVP is not trigger
1 : VDDA UVP is trigger
Load switch status
LDSW _STAT
0 : Load switch is turn off
1 : Load switch is turn on
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
DS9481-00 June 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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