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Número de pieza
componentes Descripción
RT9515 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT9515
Linear Single Cell Li-Ion Battery Charger IC
Richtek Technology
RT9515 Datasheet PDF : 11 Pages
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RT9515
Operation State Diagram for Charger function (RT9515)
UVLO <V
IN
< OVP
& EN = Low
& V
IN
> BATT
NO
Power Off State
PFET = OFF
Any State
if V
IN
< UVLO or
V
IN
> OVP or
EN = High or
V
IN
< BATT
V
TS
> 2.5V or
V
TS
< 0.5V
YES
BATT < 4.1V
NO
YES
BATT > 2.8V
YES
Fast-CHG State
I
CHG_F
= 500mA
@R
SET
= 1.5k
Ω
NO
Pre-CHG State
I
PCHG
= 0.1 x I
CHG_F
ICHG < 0.1 x
NO
I
CHG_F
YES
Charge Done State
ICHG = 0A
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4
DS9515-01 April 2011
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