参数资料
型号: LTC4110EUHF#TRPBF
厂商: Linear Technology
文件页数: 52/52页
文件大小: 0K
描述: IC BATTERY BACKUP MANAGER 38-QFN
标准包装: 2,500
功能: 备份管理
电池化学: 铅酸,锂离子,锂聚合物,镍镉,镍氢,超级电容器
电源电压: 4.5 V ~ 19 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 38-WFQFN 裸露焊盘
供应商设备封装: 38-QFN(5x7)
包装: 带卷 (TR)
LTC4110
TYPICAL APPLICATION
Battery Backup System Manager Controlling a Three-Series Cell Li-Ion, Gas
Gauge Smart Battery with Calibration Managed by Host Processor
TO SYSTEM
R CL
0.033Ω
INPUT
IDEAL DIODE
0.1μF
LOW ESR
22μF
VERY
LOW ESR
LOAD
SUPPLY
INPUT
(12V)
0.5W
Q2
0.1μF
TO BACKUP
LOAD
LOW ESR
8.66k
Q3
BATTERY
1.21k
T1
IDEAL
DIODE
DCIN
CLN
INID
DCOUT
NC
BATID
1nF
33Ω
0.5W
5%
1nF
33Ω
0.5W
5%
15ms ACPDLY
7HR TIMER
LOW CURRENT BACKUP DESIGN
R THA 1.13k
R THB 54.9k
CLP
DCDIV
THA
THB
V REF
CHGFET
DCHFET
I SENSE
CSP
R SL
3.32k
2k
Q1A
1k
330nF
Q1B
R SNS(FET)
0.05Ω
0.5W
22μF
VERY
LOW ESR
R SNS(BAT)
0.1Ω
2.8V CUTOFF VOLTAGE FOR V CAL AND V DIS
1A CHARGE CURRENT
0.2A CALIBRATION AND PRECONDITIONING CURRENT
0.3A BACKDRIVE CURRENT CUTOFF
25.5k
V CHG
CSN
2k
1k
330nF
0.25W
+
(12.6V)
HOST PROVIDES SMBus PULL-UP RESISTORS
ALL RESISTORS ARE 1% UNLESS NOTED OTHERWISE
Q1: Si7216DN
Q2: Si7445DP
Q3: SiA911DJ
T1: BH510-1019
51.1k
30.1k
187k
V CAL
V DIS
I CHG
I CAL
LTC4110
BAT
I TH
ACPDLY
TIMER
3.01k
100nF
0.1μF
0.1μF
I 2 C
TO
HOST
+
+
10.8V
10k
NTC
I PCC
3 CELL
37.4k
0.1μF
SELA
SELC
V DD
ACPb
0.1μF
LOW
ESR
GP101
I 2 C
TO
HOST
SDA
SCL
TYPE
GND
GP102
GP103
SHDN
SGND
4110 TA02
RELATED PARTS
PART NUMBER
LTC1760
LTC1960
LTC4412/
LTC4412HV
LTC4414
LTC4416/
LTC4416-1
DESCRIPTION
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
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 Ef?cient than Diode ORing, Automatic Switching Between DC Sources,
Simpli?ed Load Sharing, 3V ≤ V IN ≤ 28V, (3V ≤ V IN ≤ 36V for HV) ThinSOT
Package
Drives Large Q G PFETs, Very Low Loss Replacement for Power Supply ORing
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
ThinSot is a Trademark of Linear Technology Corporation.
4110fb
52 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630  McCarthy  Blvd.,  Milpitas,  CA  95035-7417
LT 0409 REV B ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2008
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