LTC4110EUHF LINER [Linear Technology], LTC4110EUHF Datasheet - Page 52

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

LTC4110
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER DESCRIPTION
LTC1760
LTC1960
LTC4412/
LTC4412HV
LTC4414
LTC4416/
LTC4416-1
ThinSot is a Trademark of Linear Technology Corporation.
52
15ms ACPDLY
7HR TIMER
LOW CURRENT BACKUP DESIGN
2.8V CUTOFF VOLTAGE FOR V
1A CHARGE CURRENT
0.2A CALIBRATION AND PRECONDITIONING CURRENT
0.3A BACKDRIVE CURRENT CUTOFF
HOST PROVIDES SMBus PULL-UP RESISTORS
ALL RESISTORS ARE 1% UNLESS NOTED OTHERWISE
Q1: Si7216DN
Q2: Si7445DP
Q3: SiA911DJ
T1: BH510-1019
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
Smart Battery System Manager
Dual Battery Charger/Selector with SPI Interface
PowerPath Controllers in ThinSOT™
36V, Low Loss PowerPath Controller for Large PFETs
Dual, Low Loss PowerPath Controllers
CAL
AND V
●
FAX: [phone]
DIS
Battery Backup System Manager Controlling a Three-Series Cell Li-Ion, Gas
Gauge Smart Battery with Calibration Managed by Host Processor
SUPPLY
INPUT
(12V)
8.66k
1.21k
25.5k
51.1k
●
www.linear.com
0.033Ω
37.4k
0.5W
30.1k
187k
R
R
R
CL
THA
THB
HOST
I
TO
0.1μF
2
1.13k
54.9k
C
DCIN
CLN
CLP
DCDIV
THA
THB
V
V
V
V
I
I
I
SELA
SELC
SDA
SCL
TYPE
CHG
CAL
PCC
REF
CHG
CAL
DIS
GND
IDEAL DIODE
COMMENTS
Autonomous Power Management and Battery Charging for Two Smart Batteries,
SMBus Rev 1.1 Compliant
Simultaneous Charge or Discharge of Two Batteries, DAC Programmable
Current and Voltage, Input Current Limiting Maximizes Charge Current
More Effi cient than Diode ORing, Automatic Switching Between DC Sources,
Simplifi ed Load Sharing, 3V ≤ V
Package
Drives Large Q
Diodes, 3.5V to 36V AC/DC Adapter Voltage Range, MSOP-8 Package
Drives Large PFETs, Low Loss Replacement for Power Supply ORing Diodes,
Operation to 36V, Programmable Autonomous Switching
LTC4110
INPUT
INID
SGND
Q2
CHGFET
DCHFET
ACPDLY
DCOUT
I
TIMER
GP101
GP102
GP103
BATID
SHDN
SENSE
ACPb
CSN
CSP
V
BAT
NC
I
DD
TH
G
0.1μF
LOW ESR
3.32k
PFETs, Very Low Loss Replacement for Power Supply ORing
R
2k
2k
SL
100nF
3.01k
Q1A
1k
1k
0.5W
1nF
33Ω
5%
330nF
330nF
0.1μF
0.1μF
LOW
ESR
IN
0.1μF
4110 TA02
T1
≤ 28V, (3V ≤ V
22μF
VERY
LOW ESR
0.1μF
LOW ESR
R
0.05Ω
0.5W
Q1B
33Ω
0.5W
5%
SNS(FET)
1nF
© LINEAR TECHNOLOGY CORPORATION 2008
HOST
I
R
0.1Ω
0.25W
IN
TO
2
SNS(BAT)
C
≤ 36V for HV) ThinSOT
22μF
VERY
LOW ESR
LT 0708 REV A • PRINTED IN USA
+
+
+
(12.6V)
3 CELL
10.8V
Q3
BATTERY
IDEAL
DIODE
10k
NTC
TO SYSTEM
LOAD
TO BACKUP
LOAD
4110fa