User manual

LTC4100
30
4100fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 1109 REV B • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LTC1760 Smart Battery System Manager Autonomous Power Management and Battery Charging for Two Smart Batteries,
SMBus Rev 1.1 Compliant
LTC1960 Dual Battery Charger/Selector with SPI Interface Simultaneous Charge or Discharge of 2 Batteries, DAC Programmable Current
and Voltage, Input Current Limiting Maximizes Charge Current
LTC1980 Combination Battery Charger and DC/DC Converter Input Supply May be Above or Below Battery Voltage, up to 8.4V Float Voltage,
24-Pin SSOP Package
LTC4006 Small, High Effi ciency, Fixed Voltage, Lithium-Ion
Battery Charger
Constant Current/Constant Voltage Switching Regulator with Termination Timer,
AC Adapter Current Limit and SafetySignal Sensor in a Small 16-Pin Package
LTC4007 High Effi ciency, Programmable Voltage Battery
Charger with Termination
Complete Charger for 3- or 4-Cell Li-Ion Batteries, AC Adapter Current Limit,
SafetySignal Sensor and Indicator Outputs
LTC4008 High Effi ciency, Programmable Voltage/Current
Battery Charger
Constant Current/Constant Voltage Switching Regulator; Resistor Voltage/
Current Programming, AC Adapter Current Limit and SafetySignal Sensor
LTC4101 Smart Battery Charger Controller For Smart Batteries with Voltages Below 5.5V
LTC4412 Low Loss PowerPath™ Controller Very Low Loss Replacement for Power Supply OR’ing Diodes Using Minimal
External Components
PowerPath is a trademark of Linear Technology Corporation.
LTC4100 Li-Ion Battery Charger I
LIM
= 4A/V
LIM
= 17.4V, Adapter Rating = 2.7A
5
11
20
12
17
14
13
10
6
7
8
9
1
3
21
18
16
15
C4
0.01µF
25V
C5
0.1µF
10V
0.1µF
10V
C9
0.1µF
10V
R4
100
300
SDA
SCL
R
THB
54.9k
1%
R
THA
1.13k
1%
R
SNS
0.025
0.5W, 1%
R
CL
0.033
0.5W
1%
OPTIONAL
DISCHARGE
PATH TO
SYSTEM
LOAD
C4,C5
10µF s2
25V
X5R
C2, C3
10µF s2
25V
X5R
SYSTEM
LOAD
Q3
Q1
DCIN
DCIN
100k
Q2
Q4
D6
R11
1.21k
1%
R5
6.04k
1%
C6, 0.12µF
10V, X7R
C8, 0.068µF
10V, X7R
C7, 0.0015µF
10V, X7R
R10
13.7k
1%
C1
0.1µF
15V TO 20V
DCIN
FROM WALL
ADAPTER
R1
4.9k
L1
10µH
4A
424 23
D1
D1: MBRM140T3G
D2-D5: SMALL SIGNAL SCHOTTKY
D6: 18V ZENER DIODE
Q1: 1/2 Si4925BDY
Q2: FDS6685
Q3: FDC645N
Q4: 1/2 Si4925
4100 TA02
R6, R
VLIM
33k
SDA
SCL
10k10k
3V TO 5.5V
SafetySignal
D2
D3
D4
D5
4-CELL Li-Ion
SMART BATTERY
22
19
DCIN
DCDIV
I
DC
GND
V
DD
V
LIM
I
LIM
ACP
CHGEN
SMBALERT
SDA
SCL
INFET
TGATE
BGATE
CSP
V
SET
THA
THB
CLNCLP
LTC4100
BAT
PGND
I
TH
2