LTC1729CMS8-4.2 Linear Technology, LTC1729CMS8-4.2 Datasheet - Page 16

• Manufacturer Part Number: LTC1729CMS8-4.2
• Description: IC CTRLR BATT CHRGR LI-ION 8MSOP
• Manufacturer: Linear Technology

Specifications of LTC1729CMS8-4.2

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL APPLICATIO
LTC1729 Series
RELATED PARTS
PART NUMBER
LT1505
LT1510
LT1511
LT1512
LT1513
LT1571-1/LT1571-2
LT1571-5
LTC1731
LTC1732
LTC1759
LT1769
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
D1, D2, D4: GENERAL SEMICONDUCTOR
*** AVX TPSD226K025R0200
** SUMIDA CDRH125-220MC
22 H
* TOKIN C55Y5U1E156Z
†
L1**
0.47 F
100
LUMEX SML-LX0805GW-TR
R4
DESCRIPTION
High Efficiency Constant-Voltage/Constant-Current
Battery Charger
Constant-Voltage/Constant-Current Battery charger
3A Constant-Voltage/Constant-Current Battery Charger
SEPIC Battery Charger
SEPIC Battery Charger
200kHz/500kHz Constant-Current/Constant-Voltage Battery
Charger Family
Linear Charger
Linear Charger
SMBus-Controlled Smart Battery Charger
2A Constant-Voltage/Constant-Current Battery Charger
C2
D3
MBR0540T
C3
220pF
D4
SS24
C5
1 F
3A (LT1511) Or 2A (LT1769), 2-Cell Lithium-Ion Battery Charger
200
R
1%
GND
SW
BOOST
COMP1
SPIN
OVP
U
S2
SENSE
LT1511 OR LT1769
OVP
BAT
SENSE
GND
LTC1729-8.4
0.05
R
S1
STATUS
BAT
PROG
NTC
V
V
CC
CLP
CLN
V
C
UV
V
CC
R
200
1%
C
S3
+
C1*
15 F
10k NTC THERMISTOR, NTHS1206N02 VISHAY/DALE
NOTE: EITHER A THERMISTOR OR 10k RESISTOR MUST BE PRESENT
OPTION: TIE RESISTOR TO STATUS FOR
CHARGE TERMINATION AT
LOW CHARGING CURRENT
R2
1k
C7***
22 F
C4
0.33 F
C6
0.1 F
+
R3
300
8.4V
1 F
C
1 F
PROG
COMMENTS
Uses External Synchronous N-Channel FETs
NiMH Batteries, Internal R
Charges Lithium, NiCd and NiMH Batteries
V
V
Preset and Adjustable Battery Voltages, C/10 Charge Detection
Programmable Timer, C/10 Flag, 8-Pin MSOP
Programmable Timer, C/10 Flag, AC Power Good, 10-Pin MSOP
LT1505 Charger Functionality with SMBus Control
Up to 1.5A Charge Current for Lithium-Ion, NiCd and
Up to 1.5A Charge Current for 1- or 2-Cell Li-Ion Batteries,
28-Pin SSOP Package
IN
IN
510
Can Be Higher or Lower Than Battery Voltage, 2A Switch
Can Be Higher or Lower Than Battery Voltage, 3A Switch
R1
R
4.93k
PROG
R
0.05
R7
1.4k
S4
D5
1729 TA04
SS24
†
D1
D2
SS24
SENSE
LINEAR TECHNOLOGY CORPORATION 1999
R5
3k
R6
5.1K
1729f LT/LCG 0800 4K • PRINTED IN USA
INPUT POWER
11.5V TO 28V
TO MAIN
SYSTEM
LOAD