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LTC4059AEDC#TRPBF

Description
Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R
CategoryBattery management   
File Size302KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC4059AEDC#TRPBF Overview

Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R

LTC4059AEDC#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeLinear Battery Charger
Battery TypeLi-Ion|Li-Pol|NiCd|NiMH
Minimum Operating Supply Voltage (V)3.75
Maximum Operating Supply Voltage (V)8
Output Voltage (V)4.2
Output Current (mA)900(Max)
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count6
Standard Package NameDFN
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length2
Package Width2
PCB changed6
Lead ShapeNo Lead
FEATURES
LTC4059/LTC4059A
900mA Linear Li-Ion
Battery Chargers with
Thermal Regulation in 2
×
2 DFN
DESCRIPTIO
The LTC
®
4059/LTC4059A are constant-current/constant-
voltage linear chargers for single cell lithium-ion batteries.
Their 2mm
×
2mm DFN package and low external compo-
nent count make these chargers especially well suited for
portable applications. Furthermore, they are designed to
work within USB power specifications.
No external sense resistor, MOSFET or blocking diode is
required. Thermal feedback regulates the charge current
to limit the die temperature during high power operation or
high ambient thermal conditions. The charge voltage is
fixed at 4.2V and the charge current is programmable.
When the input supply (wall adapter or USB supply) is
removed, the LTC4059/LTC4059A automatically enter a low
current state, dropping the battery current drain to less than
1µA. With power applied, they can be put into shutdown
mode, reducing the supply current to 10µA.
The LTC4059A features an open-drain status pin to indi-
cate the presence of an input voltage. The LTC4059 can be
used as a constant-current source to charge Nickel cells.
Other features include undervoltage lockout protection
and a current monitor pin which can indicate when to
terminate a charge cycle.
The LTC4059/LTC4059A are available in a 6-lead, low
profile (0.75mm) 2mm
×
2mm DFN package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6522118.
Programmable Charge Current Up to 900mA
Charge Current Monitor Output for Charge
Termination
Constant-Current/Constant-Voltage Operation with
Thermal Regulation to Maximize Charging Rate
Without Risk of Overheating
Constant-Current Source Mode for Charging
Nickel Batteries (LTC4059 Only)
ACPR Pin Indicates Presence of Input Supply
(LTC4059A Only)
No External MOSFET, Sense Resistor or Blocking
Diode Required
Operating Supply Voltage from 3.75V to 8V
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Preset 4.2V Charge Voltage with 0.6% Accuracy
10µA Supply Current in Shutdown Mode
Tiny 6-Lead (2mm
×
2mm) DFN Package
APPLICATIO S
Wireless PDAs
Cellular Phones
Portable Electronics
Wireless Headsets
Digital Cameras
TYPICAL APPLICATIO
V
IN
4.5V TO 8V
V
CC
1µF
EN
GND
ACPR
Complete Charge Cycle (800mAh Battery)
700
V
DD
CHARGE CURRENT (mA)
600
500
400
300
200
100
0
0
CONSTANT
CURRENT
50k
µP
600mA
LTC4059A
BAT
PROG
2k
+
4.2V
Li-Ion
BATTERY
4059 TA01
V
CC
= 5V
R
PROG
= 2k
T
A
= 25°C
0.5
1
1.5
2
TIME (HOURS)
U
U
U
CONSTANT
VOLTAGE
4.4
4.2
BATTERY VOLTAGE (V)
4.0
3.8
3.6
3.4
3.2
3.0
2.5
4059 TA02
4059fb
1

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Description Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP T/R Linear Battery Charger Li-Ion/Li-Pol/NiCd/NiMH 900mA 4.2V 6-Pin DFN EP
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Not Compliant Compliant Compliant Compliant Not Compliant
ECCN (US) EAR99 - EAR99 EAR99 - EAR99 EAR99 EAR99
Part Status Active Unconfirmed Active Unconfirmed Unconfirmed Active Active Unconfirmed
Type Linear Battery Charger Linear Battery Charger Linear Battery Charger Linear Battery Charger Linear Battery Charger Linear Battery Charger Linear Battery Charger Linear Battery Charger
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 Li-Ion|Li-Pol|NiCd|NiMH Li-Ion|Li-Pol|NiMH|NiCd Li-Ion|Li-Pol|NiCd|NiMH
Minimum Operating Supply Voltage (V) 3.75 3.75 3.75 3.75 3.75 3.75 3.75 3.75
Maximum Operating Supply Voltage (V) 8 8 8 8 8 8 8 8
Output Voltage (V) 4.2 4.2 4.2 4.2 4.2 4.2 4.2 4.2
Output Current (mA) 900(Max) 900(Max) 900(Max) 900(Max) 900(Max) 900(Max) 900(Max) 900(Max)
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85 85 85 85 85
Supplier Temperature Grade Extended Extended Extended Extended Extended Extended Extended Extended
Pin Count 6 6 6 6 6 6 6 6
Standard Package Name DFN DFN DFN DFN DFN DFN DFN DFN
Supplier Package DFN EP DFN EP DFN EP DFN EP DFN EP DFN EP DFN EP DFN EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max)
Package Length 2 2 2 2 2 2 2 2
Package Width 2 2 2 2 2 2 2 2
PCB changed 6 6 6 6 6 6 6 6
Lead Shape No Lead No Lead No Lead No Lead No Lead No Lead No Lead No Lead
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 - 8542.39.00.01 8542.39.00.01 8542.39.00.01 -
Packaging Tape and Reel Tape and Reel Tape and Reel - Tape and Reel Tape and Reel Tape and Reel -
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