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LTC4110 Datasheet(PDF) 48 Page - Linear Technology

Part # LTC4110
Description  Battery Backup System Manager
PDF  52 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4110 Datasheet(HTML) 48 Page - Linear Technology

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LTC4110
48
4110fa
TYPICAL APPLICATIONS
Battery Backup System Manager Controlling a Six-Series Cell
SLA Battery with Temperature Compensation
DCIN
INID
CLN
CLP
DCDIV
7.32k
1.21k
8.66k
24.3k
RSNS(FET)
0.05Ω
0.5W
33Ω
0.5W
5%
33Ω
0.5W
5%
RSL
3.32k
RCL
0.02Ω
1W
3.01k
0.1μF
1k
2k
330nF
1nF
1nF
1k
2k
330nF
RSNS(BAT)
0.1Ω
0.25W
THA
THB
VREF
10k
NTC
ß = 3750
I2C
TO
HOST
0.1μF
LOW
ESR
NO TIMER
HIGH CURRENT BACKUP LOAD DESIGN
0.5A BACKDRIVE CURRENT CUTOFF (CALIBRATION)
1A CHARGE AND CALIBRATION CURRENT
ALL RESISTORS ARE 1% UNLESS NOTED OTHERWISE
Q1: Si7216DN
Q2: Si7445DP
Q3: Si7983DP
T1: BH510-1019
20μF
VERY
LOW ESR
BATTERY
IDEAL
DIODE
INPUT
IDEAL DIODE
Q2
TO SYSTEM
LOAD
TO BACKUP
LOAD
12V
VCHG
VCAL
VDIS
VDD
ICHG
ICAL
IPCC
SELA
SELC
SDA
SCL
TYPE
DCOUT
SUPPLY
INPUT
(12V)
NC
BATID
CHGFET
DCHFET
ISENSE
CSP
CSN
BAT
ITH
ACPDLY
TIMER
VDD
ACPb
GP101
GP102
GP103
SHDN
GND
SGND
20μF
VERY
LOW ESR
25.5k
+
+
+
+
+
+
4110 TA04
FLOAT VOLTAGE = 2.35V/CELL
AT 25°C TC = –2mV/°C
LTC4110
0.1μF
LOW
ESR
0.1μF
LOW
ESR
–
+
VDD
–
+
84.5k
16.2k
Q3
Q1A
Q1B
T1
36.5k
VDD



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