RT9519A データシートの表示（PDF） - Richtek Technology
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RT9519A Datasheet PDF : 17 Pages
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RT9519A
Typical Application Circuit
Adapter
CIN
2.2µF
RT9519A
1 VIN
VP 12
External Power Source
2.95V to 3.6V
To System Load
17, 18, 19 SYS
TS 6
Power Good Indicator
Charge Indicator
Chip Enable
Suspend
Normal
Suspend Mode
See ISETU
4.2V
4.05V
1.5A
VIN Current Limit 500mA
100mA
VIN Current Limit
2 PGOOD
3 CHG
10 EN
20 USUS
15 VSET
14 ISETL
13 ISETU
TIMER 7
BAT 8, 9
CTIMER
1µF
NTC
1µF + 1-Cell
Li+
ISETA 5
RISETA
ISET 11
ICHG
ICHG/2
GND 4, 21 (Exposed Pad)
Function Block Diagram
VIN
ISETA
ISET
VSET
ISETL
USUS
EN
ISETU
Control
Circuit
Sleep
Mode
Current
Setting
CC/CV/TR
/APPM
Multi Loop
Controller
Thermal
Circuit
R
200k
200k
200k
200k
200k
200k
Logic Control
Timer
Temperature
Sense
1sec
Delay
OVP
UVLO
SYS
BAT
VP
TIMER
TS
CHG
PGOOD
GND
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2
DS9519A-02 April 2011
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