LTC4059EDC#TRMPBF Linear Technology, LTC4059EDC#TRMPBF Datasheet

IC BATT CHARGER LI-ION REG 6DFN

LTC4059EDC#TRMPBF

Manufacturer Part Number
LTC4059EDC#TRMPBF
Description
IC BATT CHARGER LI-ION REG 6DFN
Manufacturer
Linear Technology
Type
Battery Chargerr
Datasheet

Specifications of LTC4059EDC#TRMPBF

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
3.75 V ~ 8 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-WFDFN Exposed Pad
Output Current
500mA
Output Voltage
4.2V
Operating Supply Voltage (min)
3.75V
Operating Supply Voltage (max)
8V
Operating Temp Range
-40C to 85C
Package Type
DFN
Mounting
Surface Mount
Pin Count
6
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LTC4059EDC#PBF
LTC4059EDC#PBF

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC4059EDC#TRMPBFLTC4059EDC
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC4059EDC#TRMPBFLTC4059EDC
Manufacturer:
LINEAR
Quantity:
5
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
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
Wireless PDAs
Cellular Phones
Portable Electronics
Wireless Headsets
Digital Cameras
4.5V TO 8V
V
IN
U
1µF
V
EN
GND
CC
LTC4059A
PROG
ACPR
BAT
600mA
U
2k
4059 TA01
+
V
4.2V
Li-Ion
BATTERY
DD
50k
µP
Thermal Regulation in 2 × 2 DFN
DESCRIPTIO
The LTC
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.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6522118.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
4059/LTC4059A are constant-current/constant-
Complete Charge Cycle (800mAh Battery)
Battery Chargers with
700
600
500
400
300
100
200
0
0
900mA Linear Li-Ion
V
R
T
CC
A
PROG
LTC4059/LTC4059A
CONSTANT
= 25°C
CURRENT
= 5V
0.5
U
= 2k
TIME (HOURS)
1
1.5
CONSTANT
VOLTAGE
2
4059 TA02
2.5
4.4
4.2
4.0
3.8
3.6
3.2
3.0
3.4
4059fb
1

Related parts for LTC4059EDC#TRMPBF

LTC4059EDC#TRMPBF Summary of contents

Page 1

... 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. V ...

Page 2

LTC4059/LTC4059A ABSOLUTE AXI U RATI GS (Note 1) Input Supply Voltage (V ) ...................... –0.3V to 10V CC BAT, PROG, EN, Li CC, ACPR ................... –0.3V to 10V BAT Short-Circuit Duration ........................... Continuous BAT Pin Current ............................................... ...

Page 3

W U TYPICAL PERFOR A CE CHARACTERISTICS Battery Regulation (Float) Voltage vs Battery Charge Current 4. 25° 2.43k PROG 4.22 4.20 4.18 4.16 4.14 4.12 4.10 100 200 400 0 ...

Page 4

LTC4059/LTC4059A W U TYPICAL PERFOR A CE CHARACTERISTICS V – V Undervoltage Lockout CC BAT Threshold vs Battery Voltage 500 T = 25°C A 450 R = 12.1k PROG 400 350 300 250 200 150 100 ...

Page 5

CTIO S GND (Pins 1, 7): Ground/Exposed Pad. The exposed package pad is ground and must be soldered to the PC board for maximum heat transfer (Pin 2, LTC4059): Li-Ion/Constant Current Input Pin. ...

Page 6

LTC4059/LTC4059A W BLOCK DIAGRA EN LOGIC 1.2V VOLTAGE REFERENCE T DIE 115°C EN LOGIC 6 R BAT EN – ACPR 2 1.2V VOLTAGE REFERENCE T DIE 115° 1× D1 – ...

Page 7

U OPERATIO The LTC4059/LTC4059A are linear battery chargers de- signed primarily for charging single cell lithium-ion bat- teries. Featuring an internal P-channel power MOSFET, the chargers use a constant-current/constant-voltage charge algorithm with programmable current. Charge current can be programmed up ...

Page 8

LTC4059/LTC4059A U U APPLICATIO S I FOR ATIO Shutdown Mode Charging can be terminated by pulling the EN pin above the shutdown threshold (approximately 0.92V). In shutdown mode, the battery drain current is reduced to less than 1µA and the ...

Page 9

U U APPLICATIO S I FOR ATIO Power Dissipation The conditions that cause the LTC4059/LTC4059A to reduce charge current through thermal feedback can be approximated by considering the power dissipated in the IC. For high charge currents, the LTC4059 power ...

Page 10

LTC4059/LTC4059A U U APPLICATIO S I FOR ATIO program resistor. The pole frequency at the PROG pin should be kept above 500kHz. Therefore, if the PROG pin is loaded with a capacitance, C PROG tion should be used to calculate ...

Page 11

... PIN 1 BAR TOP MARK (SEE NOTE 6) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 6-Lead Plastic DFN (2mm × ...

Page 12

... Monolithic Lithium-Ion Linear Battery Charger with Thermal Regulation in ThinSOT LTC4410 USB Power Manager 950mA Standalone Li-Ion Charger in 3mm × 3mm LTC4058 DFN ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...

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