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LTC1729CMS8-8.4#TRPBF

Description
Linear Battery Charger Controller Li-Ion 8.4V 8-Pin MSOP T/R
CategoryBattery management   
File Size218KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1729CMS8-8.4#TRPBF Overview

Linear Battery Charger Controller Li-Ion 8.4V 8-Pin MSOP T/R

LTC1729CMS8-8.4#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
TypeLinear Battery Charger Controller
Battery TypeLi-Ion
Maximum Supply Current (mA)21
Minimum Operating Supply Voltage (V)8
Maximum Operating Supply Voltage (V)28
Output Voltage (V)8.4
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
PackagingTape and Reel
Pin Count8
Standard Package NameMSOP
Supplier PackageMSOP
MountingSurface Mount
Package Height0.86
Package Length3
Package Width3
PCB changed8
Lead ShapeGull-wing
LTC1729 Series
Li-Ion Battery Charger
Termination Controllers
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
s
Built-In Termination: 3-Hour Time-Out
C/10 Detection with Status Indicator
Trickle Charge Preconditioning If Cell < 2.7V
Charging Enabled When 0°C < T < 50°C
Automatic Charger Present Detection
Automatic Battery Present Detection
1- or 2-Cell, 4.1V/Cell or 4.2V/Cell Options
Precision Internal 0.2% Voltage Feedback Divider
Compatible with LT1505/LT1510/LT1511/
LT1512/LT1513/LT1769
Small Footprint/Low Profile
The LTC
®
1729 series is a family of smart termination
controllers for lithium-ion battery chargers. These ICs
provide trickle charge preconditioning, temperature charge
qualification, time or charge current termination, auto-
matic charger and battery detection and status output.
Combining the LTC1729 series part with the LT
®
1510
(1.5A), LT1769 (2A), LT1511 (3A) and LT1505 (> 4A)
step-down chargers is a simple operation. Connecting six
pins from the LTC1729 series part to the step-down
chargers completes the integration. The LTC1729 termi-
nation controllers are also compatible with step-down/
step-up (SEPIC) chargers, including the LT1512 (2A switch)
and LT1513 (3A switch).
The LTC1729 series is available in the 8-pin MSOP and SO
packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
Cellular Phones
PDAs
Cradle Chargers
Camcorders
TYPICAL APPLICATIO
0.22µF
L1**
10µH
MMBD914L
MBRM120T3
SW
LT1510-5
PROG
BOOST
GND
OVP
SENSE
BAT
V
C
0.1µF
1k
V
CC
1µF
300Ω
6.19k
+
C
OUT
***
22µF
+
4.2V
LTC1729-4.2
1
2
200Ω
1µF
3
4
OVP
BAT
SENSE
GND
V
CC
V
C
STATUS
NTC
8
7
6
1729 F01
0.1µF
5
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
* TOKIN OR MARCON SURFACE MOUNT
** COILTRONICS TP3-100, 10µH, 2.2mm HEIGHT
(0.8A CHARGING CURRENT)
COILTRONICS TP1 SERIES, 10µH, 1.8mm
HEIGHT (<0.5A CHARGING CURRENT)
*** PANASONIC EEFCD1B220
LUMEX SML-LX0805GW-TR
Figure 1. 500kHz Li-Ion Cell Phone Charger (0.8A)
U
MBRM120T3
C
IN
*
10µF
INPUT POWER
8.2V TO 20V
1.4k
D1
CHARGE STATUS
U
U
1

LTC1729CMS8-8.4#TRPBF Related Products

LTC1729CMS8-8.4#TRPBF LTC1729CMS8-4.2#PBF LTC1729CMS8-4.2#TRPBF LTC1729CMS8-8.4#PBF
Description Linear Battery Charger Controller Li-Ion 8.4V 8-Pin MSOP T/R Linear Battery Charger Controller Li-Ion 4.2V 8-Pin MSOP Tube Linear Battery Charger Controller Li-Ion 4.2V 8-Pin MSOP T/R Linear Battery Charger Controller Li-Ion 8.4V 8-Pin MSOP Tube
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active
Type Linear Battery Charger Controller Linear Battery Charger Controller Linear Battery Charger Controller Linear Battery Charger Controller
Battery Type Li-Ion Li-Ion Li-Ion Li-Ion
Maximum Supply Current (mA) 21 21 21 21
Minimum Operating Supply Voltage (V) 8 8 8 8
Maximum Operating Supply Voltage (V) 28 28 28 28
Output Voltage (V) 8.4 4.2 4.2 8.4
Maximum Operating Temperature (°C) 70 70 70 70
Supplier Temperature Grade Commercial Commercial Commercial Commercial
Packaging Tape and Reel Tube Tape and Reel Tube
Pin Count 8 8 8 8
Standard Package Name MSOP MSOP MSOP MSOP
Supplier Package MSOP MSOP MSOP MSOP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.86 0.86 0.86 0.86
Package Length 3 3 3 3
Package Width 3 3 3 3
PCB changed 8 8 8 8
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing
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