LTC4110EUHF LINER [Linear Technology], LTC4110EUHF Datasheet - Page 48

• Manufacturer Part Number: LTC4110EUHF
• Description: Battery Backup System Manager
• Manufacturer: LINER [Linear Technology]

LTC4110
TYPICAL APPLICATIONS
48
SUPPLY
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
INPUT
(12V)
8.66k
1.21k
+
–
+
–
V
V
DD
DD
16.2k
84.5k
0.02Ω
R
1W
CL
24.3k
0.1μF
LOW
ESR
HOST
36.5k
7.32k
I
TO
2
V
C
25.5k
DD
Battery Backup System Manager Controlling a Six-Series Cell
SELC
DCIN
CLN
CLP
DCDIV
THA
THB
V
V
V
V
I
I
I
SELA
SDA
SCL
TYPE
CHG
CAL
PCC
REF
CHG
CAL
DIS
SLA Battery with Temperature Compensation
GND
IDEAL DIODE
LTC4110
INPUT
INID
SGND
Q2
CHGFET
DCHFET
ACPDLY
DCOUT
TIMER
GP101
GP102
GP103
I
BATID
SHDN
SENSE
ACPb
CSP
CSN
V
BAT
I
NC
DD
TH
3.32k
R
2k
2k
SL
LOW ESR
3.01k
0.1μF
LOW
ESR
VERY
20μF
1k
1k
0.1μF
LOW
ESR
Q1A
330nF
330nF
0.1μF
1nF
0.5W
33Ω
5%
4110 TA04
T1
FLOAT VOLTAGE = 2.35V/CELL
Q1B
33Ω
0.5W
5%
R
0.05Ω
0.5W
AT 25°C TC = –2mV/°C
SNS(FET)
1nF
20μF
VERY
LOW ESR
R
0.1Ω
0.25W
SNS(BAT)
+
+
+
+
+
+
Q3
BATTERY
IDEAL
DIODE
12V
10k
NTC
ß = 3750
TO SYSTEM
LOAD
TO BACKUP
LOAD
4110fa