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RT9524 Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT9524
Description  Linear Single Cell Li-Ion Battery Charger IC for Portable Applications
PDF  12 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9524 Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT9524
2
DS9524-01 April 2011
www.richtek.com
Function Block Diagram
Functional Pin Description
Pin No.
Pin Name
Pin Function
1
VIN
The Input Power Source.
2
ISET
Charging Current Setting.
3, 7,
11 (Exposed Pad)
GND
Ground. The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
4
LDO
LDO Output (4.9V). This pin provides 50mA output current.
5
IEOC
End-of-Charge Current Setting. The IEOC is from 5% to 5O% Ichg-fast which is
programmed by the ISET pin.
6
EN/SET
Enable and Operation Mode Setting.
8
CHGSB
Indicator Output for Charging Status.
9
PGB
Indicator Output for Power Status.
10
BATT
Battery Charge Current Output.
Typical Application Circuit
VIN
GND
RT9524
PGB
8
3, 7, 11(Exposed Pad)
10
1
9
BATT
CHGSB
LDO 4
COUT
+
CIN
Adapter or USB
BATT
BATT
ISET
2
RISET
IEOC
5
RIEOC
EN/SET 6
CC/CV/TR
Multi Loop
Controller
Logic
LDO
Current
Set Block
Current
Set Block
200k
Status
Switch
Well
Sleep
Mode
IEOC Set
Block
OVP
UVLO
Base
VREF
VDD
IBias
VIN
IEOC
BATT
CHGSB
PGB
ISET
EN/SET
LDO
GND



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