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LTC4020 Datasheet(PDF) 39 Page - Linear Technology

Part # LTC4020
Description  55V Buck-Boost Multi-Chemistry Battery Charger
PDF  42 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4020 Datasheet(HTML) 39 Page - Linear Technology

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LTC4020
39
4020fd
For more information www.linear.com/LTC4020
Typical applicaTions
9V to 55V to 9-cell lead-acid (18V) charger/system supply with no PowerPath.
External 5V regulator for boosted supplies. 5A inductor current limit with 1.67A battery charge current limit.
21.5V absorption voltage output, 19.9V float voltage output.
RSENSEA
0.01
RSENSEB
0.01
Si7960DP
Si7272DP
CMSH3-40MA
Si7272DP
Si7850DP
56µF
×2
VIN
9V TO 55V
LTC4020
SGNDBACK
PGND
4.7µF
SBR0560S1
RT, 100k
0.033µF
PVIN
BG1
SW1
TG1
BST1
SGND
SENSGND
SENSBOT
SENSTOP
SENSVIN
RT
SHDN
VIN_REG
MODE
STAT1
STAT2
TIMER
RNG_SS
9-CELL LEAD-ACID (18V)
4020 TA04
INTVCC
BG2
SW2
TG2
BST2
SGND
VC
ITH
VFBMAX
ILIMIT
CSOUT
CSP
CSN
BGATE
BAT
VFBMIN
FBG
VFB
10k
NTC
1µF
1.5nF
1µF
249k
100k
43k
43k
15µH
SBR0560S1
BZX84C6V2L
680pF
100
1µF
0.1µF
4.7µF
VOUT
56µF
×3
LT3010-5
VIN
OUT
SHDN
SENSE
GND
+
XAL1010-153MEB
100
RCS
0.03
100pF
0.33µF
75.9k
+



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