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RT9451 데이터시트(PDF) 33 Page - Richtek Technology Corporation

부품명 RT9451
상세설명  Switch-Mode Single Cell Li-ion Battery Charger with USB OTG
PDF  37 Pages
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제조업체  RICHTEK [Richtek Technology Corporation]
홈페이지  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9451 데이터시트(HTML) 33 Page - Richtek Technology Corporation

Back Button RT9451 Datasheet HTML 29Page - Richtek Technology Corporation RT9451 Datasheet HTML 30Page - Richtek Technology Corporation RT9451 Datasheet HTML 31Page - Richtek Technology Corporation RT9451 Datasheet HTML 32Page - Richtek Technology Corporation RT9451 Datasheet HTML 33Page - Richtek Technology Corporation RT9451 Datasheet HTML 34Page - Richtek Technology Corporation RT9451 Datasheet HTML 35Page - Richtek Technology Corporation RT9451 Datasheet HTML 36Page - Richtek Technology Corporation RT9451 Datasheet HTML 37Page - Richtek Technology Corporation  
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RT9451
33
DS9451-00
September 2013
www.richtek.com
©
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Figure 6. High Impedance Mode
Delay 16ms
Enable Adaptor Detection
(Enable Input Current Sink
& Start 32ms Timer)
VIN > VIN(MIN) ?
Bad Adaptor Detected
(Disable Input Current Sink)
Delay tINT = 2s
32ms Timer Expired ?
Good Adaptor Detected
(Disable Input Current Sink)
Power On
CHARGE
VIN > VUVLO ?
VIN > VUVLO ?
Yes
Yes
Yes
Yes
No
No
No
No
VIN(MIN)
Adaptor
Detection Control
32ms Deglitch
VIN
+
-
HZ = 1 &
OTG is Inactive
High Impedance
HZ = 0,
OPA = 0
Any State
Figure 7. Input Power Source Detection



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