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STBC21 Datasheet(PDF) 7 Page - STMicroelectronics

Part # STBC21
Description  LI battery charger with thermal regulation
PDF  54 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STBC21 Datasheet(HTML) 7 Page - STMicroelectronics

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STBC21
Block diagram
Doc ID 023256 Rev 1
7/54
Figure 2.
Typical application schematic
Table 2.
External components
Symbol
Parameter
Min.
Typ.
Max.
Unit
C1
Ceramic capacitor SMD
1
10
µF
C2
Ceramic capacitor SMD
TBD
µF
C3
Ceramic capacitor SMD
0.1
µF
C4
Ceramic capacitor SMD
10
µF
C5
Ceramic capacitor SMD
TBD (1)
1.
Time constant R5*C5 must be less than 20 msec.
R1
Resistor
10 (2)
2.
This value refers to a fast-charge current of 100 mA.
k
Ω
R2
Resistor
TBD
k
Ω
R3
Resistor
100
k
Ω
R4
Resistor
0
Ω
R5
Resistor
TBD (1)
R6
Resistor
4.7
k
Ω
R7
Resistor
4.7
k
Ω
R8
Resistor
TBD (3)
3.
Time constant must be chosen taking into account compensation loop.
RLED1, RLED2 Resistor
90
Ω
D1
LED Kingbright L-934HD
D2
LED Kingbright L-934GD
AM10434v 2
VCC
TEMP
LED2
LED1
BAT
C1
BATTERY PACK
Li+
Protection
Circuit
Li-Ion
Battery
TEMP
GND
NTC
PHC
VCP
VREF
ISET
R1
RES2 (I
2C Data)
RES1 (I
2C Clock)
BAT
RES3 (Reserved)
C2
R2
C4
C3
R3
R4
D1
D2
VCC
STBC21A
TO AC-DC
VBAT_SNS
RLED1
RLED2
VIN
GND
R8
C5
VREF
R7
R6
VCC
VREF
R5



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