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RT9526GE Datasheet(PDF) 3 Page - Richtek Technology Corporation

Part # RT9526GE
Description  Linear Single Cell Li-Ion Battery Charger
Download  13 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9526GE Datasheet(HTML) 3 Page - Richtek Technology Corporation

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RT9526A
3
DS9526A-03 July 2014
www.richtek.com
©
Copyright
2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Function Block Diagram
CC/CV/TR
Multi Loop
Controller
Logic
200k
BATT
CHG_SB
GND
PGB
ENB
ISET
VIN
IMIN
Current
Set Block
Sleep
Mode
OVP
UVLO
BASE
EOC Set
Block
Switch
Well
VREF
IBIAS
Operation
The RT9526A is a fully integrated low cost single cell Li-
ion charger. It provides a fast-charge current setting by
resistor RIREF. Pre-charge is 16.7% of fast charge current,
while VBAT < 2.45V. The PGB pin is low, while VIN >
POR, VIN < OVP, and VIN
− VBAT > VOSH_H. The CHG_SB
pin is low, while RT9526A is charging. The CHG_SB pin
will go high while end of charger happens. End of charge
condition is set by RIMIN. CHG_SB will go low again, while
charge current is larger than 75% of fast-charge setting.
The RT9526A charges continuously after end of charge
happens. Li-ion battery will be full charged until CV = 4.2V.
The RT9526A can be disabled by ENB = H.


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