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LTC1734ES6-4.2#TR

Description
Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.2V 6-Pin TSOT-23 T/R
CategoryBattery management   
File Size176KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1734ES6-4.2#TR Overview

Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.2V 6-Pin TSOT-23 T/R

LTC1734ES6-4.2#TR Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
SVHCYes
SVHC Exceeds ThresholdYes
TypeLinear Battery Charger Controller
Battery TypeLi-Ion|Li-Pol|NiCd|NiMH
Minimum Operating Supply Voltage (V)4.55
Maximum Operating Supply Voltage (V)8
Output Voltage (V)4.2
Output Current (mA)700(Max)
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count6
Standard Package NameSOT-23
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed6
Lead ShapeGull-wing
LTC1734
Lithium-Ion Linear
Battery Charger in ThinSOT
FEATURES
s
s
s
s
s
DESCRIPTIO
s
s
s
s
s
s
Low Profile (1mm) ThinSOT
TM
Package
No Blocking Diode Required
No Sense Resistor Required
1% Accurate Preset Voltages: 4.1V or 4.2V
Charge Current Monitor Output
for Charge Termination
Programmable Charge Current: 200mA to 700mA
Automatic Sleep Mode with Input Supply Removal
Manual Shutdown
Negligible Battery Drain Current in Shutdown
Undervoltage Lockout
Self Protection for Overcurrent/Overtemperature
The LTC
®
1734 is a low cost, single cell, constant-current/
constant-voltage Li-Ion battery charger controller. When
combined with a few external components, the SOT-23
package forms a very small, low cost charger for single cell
lithium-ion batteries.
The LTC1734 is available in 4.1V and 4.2V versions with
1% accuracy. Constant current is programmed using a
single external resistor between the PROG pin and ground.
Manual shutdown is accomplished by floating the pro-
gram resistor while removing input power automatically
puts the LTC1734 into a sleep mode. Both the shutdown
and sleep modes drain near zero current from the battery.
Charge current can be monitored via the voltage on the
PROG pin allowing a microcontroller or ADC to read the
current and determine when to terminate the charge cycle.
The output driver is both current limited and thermally
protected to prevent the LTC1734 from operating outside
of safe limits. No external blocking diode is required.
The LTC1734 can also function as a general purpose
current source or as a current source for charging nickel-
cadmium (NiCd) and nickel-metal-hydride (NiMH) batter-
ies using external termination.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
s
Cellular Telephones
Handheld Computers
Digital Cameras
Charging Docks and Cradles
Low Cost and Small Size Chargers
Programmable Current Sources
TYPICAL APPLICATIO
PROG Pin Indicates Charge Status
5V
V
BAT
(V)
300mA Li-Ion Battery Charger
V
IN
5V
1µF
3
2
4
R
PROG
5k
V
CC
I
SENSE
1
4V
LTC1734
6
GND
DRIVE
PROG
BAT
5
3V
FMMT549
I
BAT
= 300mA
10µF
V
PROG
(V)
2V
1.5V
1V
CONSTANT
CURRENT
V
PROG
+
SINGLE
Li-Ion
BATTERY
1734 TA01
0V
CHARGING
BEGINS
U
V
BAT
CONSTANT
VOLTAGE
CHARGING
COMPLETE
1734 TA01b
U
U
1

LTC1734ES6-4.2#TR Related Products

LTC1734ES6-4.2#TR LTC1734ES6-4.1#TRMPBF LTC1734ES6-4.1 LTC1734ES6-4.2#TRMPBF LTC1734ES6-4.2
Description Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.2V 6-Pin TSOT-23 T/R Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.1V 6-Pin TSOT-23 T/R Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.1V 6-Pin TSOT-23 Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.2V 6-Pin TSOT-23 T/R Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 700mA 4.2V 6-Pin TSOT-23
EU restricts the use of certain hazardous substances Not Compliant Compliant Not Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Unconfirmed Active Unconfirmed Active Unconfirmed
Type Linear Battery Charger Controller Linear Battery Charger Controller Linear Battery Charger Controller Linear Battery Charger Controller Linear Battery Charger Controller
Battery Type Li-Ion|Li-Pol|NiCd|NiMH Li-Ion|Li-Pol|NiCd|NiMH Li-Ion|Li-Pol|NiCd|NiMH Li-Ion|Li-Pol|NiCd|NiMH Li-Ion|Li-Pol|NiCd|NiMH
Minimum Operating Supply Voltage (V) 4.55 4.55 4.55 4.55 4.55
Maximum Operating Supply Voltage (V) 8 8 8 8 8
Output Voltage (V) 4.2 4.1 4.1 4.2 4.2
Output Current (mA) 700(Max) 700(Max) 700(Max) 700(Max) 700(Max)
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85 85
Supplier Temperature Grade Extended Extended Extended Extended Extended
Pin Count 6 6 6 6 6
Standard Package Name SOT-23 SOT SOT-23 SOT SOT-23
Supplier Package TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.9(Max) 0.9(Max) 0.9(Max) 0.9(Max) 0.9(Max)
Package Length 2.9 2.9 2.9 2.9 2.9
Package Width 1.75(Max) 1.75(Max) 1.75(Max) 1.75(Max) 1.75(Max)
PCB changed 6 6 6 6 6
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
SVHC Yes - Yes - Yes
SVHC Exceeds Threshold Yes - Yes - Yes
Packaging Tape and Reel Tape and Reel - Tape and Reel -
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