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LTC1729 Datasheet(PDF) 13 Page - Linear Technology

Part # LTC1729
Description  Li-Ion Battery Charger Termination Controllers
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1729 Datasheet(HTML) 13 Page - Linear Technology

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LTC1729 Series
4A, 2-Cell Lithium-Ion Battery Charger
TYPICAL APPLICATIO S
CLN
CLP
INFET
UV
SYNC
SHDN
FLAG
CAP
COMP1
GBIAS
TGATE
SW
BGATE
VC
PROG
3 CELL
VFB
4.2V
4.1V
AGND
PGND
TO
SYSTEM
LOAD
BAT2 BAT SENSE SPIN
RPROG
4.93k
1%
CPROG
1
µF
BOOST BOOSTC
OVP
BAT
SENSE
GND
VCC
VC
STATUS
NTC
LTC1729-8.4
LT1505
CIN*
47
µF
35V
OPTION: TIE RESISTOR TO STATUS FOR
CHARGE TERMINATION AT
LOW CHARGING CURRENT
* SANYO OS-CON
** SUMIDA CDRH127-150
*** AVX TPSD226L025R0200
† C6 NOT NEEDED IF FLAG NOT USED
†† LUMEX SML-LX0805GW-TR
RS1
0.025
Ω
RS2
200
Ω
1%
RS4
0.025
Ω
M3
Si4435
DBODY
VIN
(FROM
ADAPTER)
R7
500
Ω
R5
3k
R1
1k
R4
3k
C5
0.33
µF
R6
5.1k
RS3
200
Ω
1%
C1
1
µF
8.4V
+
D5††
VCC
COUT***
22
µF
× 2
C9
0.1
µF
C8
0.1
µF
C7
0.68
µF
C3
2.2
µF
C4
0.1
µF
M1
Si4412
M2
Si4412
D2
MMSD4148
D3
MMSD4148
L1**
15
µH
D4
MBRS140
5
Ω
C2
0.68
µF
R3
300
Ω
C6†
0.1
µF
R8
100
Ω
R9
1.4k
RPULL-UP
10k
1729 TA02
10k NTC THERMISTOR, NTHS1206N02 VISHAY/DALE
NOTE: EITHER A THERMISTOR OR 10k RESISTOR MUST BE PRESENT
+
+



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