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RT9502 Datenblatt(PDF) 4 Page - Richtek Technology Corporation

Teilenummer RT9502
Bauteilbeschribung  Linear Single Cell Li-Ion Battery Charger IC with Dual Input Supply
PDF  13 Pages
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Hersteller  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9502 Datenblatt(HTML) 4 Page - Richtek Technology Corporation

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RT9502
4
DS9502-02 April 2011
www.richtek.com
Table
NO
YES
YES
YES
NO
NO
YES
YES
NO
YES
YES
YES
TEMP
FAULT/CHG_S
HIGH
IMPEDANCE
VTS > 2.5V
or
VTS < 0.5V?
VBATT ~ 4.2V,
IBATT < 0.1 ICHG?
VACIN < VBATT
and
VUSB < VBATT ?
VACIN > 6.5V or
(VACIN < 4.4V and
VUSB < 4.4V) ?
VEN > 1.4V ?
DISABLE MODE
P-MOSFET OFF
IBATT=0
OVP/UVP MODE
P-MOSFET OFF
IBATT=0
SLEEP MODE
P-MOSFET OFF
IBATT=0
RECHARGE
IBATT = 0.1 Charge
Current
/CHG_S Pull Down
STANDBY
PFET OFF
VBATT = 4.2V,
IBATT = 0
1ms Delay
IBATT = Charge
Current
/CHG_S Pull Down
VBATT > 4.1 V?
VBATT > 2.8V?
ACIN/USB
Power Up
Start-Up
Precharge Phase
Fast Charge Phase
Standby/Fault
Recharge Phase
NO
RT9502 Flow Chart
NO
NO



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