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RT9481 Datasheet(PDF) 19 Page - Richtek Technology Corporation

Part # RT9481
Description  Easy to Use Power Bank Solution
PDF  41 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9481 Datasheet(HTML) 19 Page - Richtek Technology Corporation

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RT9481
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9481-00 June 2015
www.richtek.com
19
Yes
No
Yes
No
No
Yes
Boost Mode Starts
Check Device Attached
USBOUT_STAI (MISC_STA2[4]) = 1?
Check Boost Fault?
User Boost Setting
and
Turn on Boost
OPA_MODE (CHG_CTRL1[0]) = 1
SWITCHING_EN (CHG_STA1[0]) = 1
Check Boost Soft-Start Finish
and
Turn on Load Switch and DCP Controller
EN_LDSW (USBOUT_CTL[6]) = 1
EN_DCP (USBOUT_CTL[7]) = 1
Turn on USBOUT Light Load Detection
Delay time(tULD > 100ms) then
set USBOUTLD_LVL (USBOUT_CTL[5:3])
Boost Fault? or
USBOUT Light Load ?
Boost Terminate
Figure 3. Boost Mode Flow



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