GENERAL DESCRIPTION
The XC6801 series is a constant-current/constant-voltage linear charger IC for single cell lithium-ion batteries. The XC6801 includes a reference voltage source, battery voltage monitor, driver transistor, constant-current/constant-voltage charge circuit, overheat protection circuit and phase compensation circuit. The battery charge termination voltage is internally set to 4.2V ±0.7% and the trickle charge voltage and accuracy is 2.9V ±3%. In trickle charge mode, a safe battery charge is possible because approximately only 1/10 of the full charge current is supplied to the battery. As it is possible to select a highly accurate charge current of either 100mA (MAX.) for L level input to the LIM pin or 500mA (MAX.) for H level, the series is ideal for applications where the charge is from USB. The series’ charge status output pin, /CHG pin, is capable of checking the IC’s charging state via connection to an external LED.

FEATURES
*Operating Voltage Range : 4.25V ~ 6.0V
*Charge Current(externally set) : 100mA (MAX.) @ LIM pin=L, 500mA (MAX.) @ LIM pin=H
*Charge Termination Voltage : 4.2V ±0.7%
*Trickle Charge Voltage : 2.9V ±3%
*Supply Current (Stand-by) : 12μA (TYP.)
*Packages : SOT-89-5, SOT-25, USP-6C
*Constant-current/constant-voltage operation
*with thermal shutdown
*Automatic recharge
*Charge status output pin
*Soft-start function (Inrush limit current)

APPLICATIONS
*USB charge applications
*Charging docks, charging cradles
*MP3 players, portable audio players
*Cellular phones, PDAs
*Bluetooth headsets

XC6801A421PR-G, XC6801A421MR-G, XC6801A421ER-G
TAG charger, ic, linear

Trackback :: http://datasheetblog.com/trackback/2860

댓글을 달아 주세요 Comment

DESCRIPTION
The LX2208 is a single cell Lithium Ion or Lithium Polymer battery charger. The controller will charge a single cell Li-Ion battery from either a wall adapter or a USB power source. A low under-voltage lockout level increases usable charging range from a current limited power source. In addition, there is a linear die temperature thermal control loop, which limits the heat dissipation while still charging the battery. There are three logic selectable and programmable charge current levels: the high charge programming level is typically set for charging from the
wall adapter, the low level charge programming is typically set to 500mA for full USB charging and 100mA (20%) for reduced USB charging.
In addition to setting the high-level charge current, the HCP programming resistor also sets the termination current at 10% of the constant current level and the conditioning current at 5% of the constant current level. Power status indicators STAT and DC OK can be configured to show charge in progress, battery fully charged and external power on. The STAT pin is capable of sourcing or sinking 5mA. The DC OK output is an open drain output and can sink 10mA.
The LX2208 enters a low quiescent current shut down when power is removed from the IN pin or when it is logically shutdown to minimize battery drain.
Protection features include: under voltage lock out, reverse current blocking on the IN pin, internal die temperature thermal loop to reduce charge current to maintain a safe die temperature, and a unsafe battery temperature charge inhibitor. For charging deeply discharged batteries, the controller includes a conditioning charge mode. The LX2208 comes in a 3x3mm 12 pin MLPD package.

KEY FEATURES
*Up to 2A Charging Current
*Integrated Power MOSFET
*Three Charge Levels for Adapter, and USB Hi and Low
* Charge Battery from a Current Limited Adapter
*0.5% Battery Voltage Accuracy
*USB Current Compliance
*Battery Full Indicator
*CC/CV with Thermal Feedback
*Battery Temperature Monitor
*Precision Charge Termination
*Protection features:
-Unsafe Battery Temp Lockout
-Internal IC Temp Regulator
-USB Current Limiter
-Reverse Current Blocking
-Under Voltage Lockout
-False Termination Prevention under Low Supply Conditions

APPLICATIONS
*Navigation Devices
*Multi-Media Players
*Handheld Devices
*Digital Cameras

Trackback :: http://datasheetblog.com/trackback/1930

댓글을 달아 주세요 Comment

GENERAL DESCRIPTION
The ACT3704 is a complete linear charging solution for single cell Lithium Ion and Lithium Polymer batteries.
It incorporates an internal 12V power MOSFET for Constant-Current, Constant-Voltage control
(CC/CV).
The battery regulation voltage accuracy is ± 0.5% and can be set to either 4.1V or 4.2V.
The charge current is programmed with an external resistor to a maximum of 1A to minimize total charge time.
The reverse leakage current from the battery is less than 1μA if the input adaptor is disconnected or if there is a reverse battery connection.
The ACT3704 is available in thermally-enhanced SOP-8/EP, and TDFN33-8 packages to accommodate high charge current operation and minimize total charging time.

FEATURES
• Internal High Voltage MOSFET
• Up to 12V Input Voltage
• ±0.5% Output Voltage Accuracy
• Charge Current Thermal Foldback
• Programmable Termination Voltage
• Programmable Fast Charge Current
• Programmable Charging Timer
• No Blocking Diode Required
• Low Reverse Leakage
• Preconditioning for Deeply Depleted Battery
• Low Quiescent Current Standby Mode
• Space-Saving, Thermally-Enhanced SOP- 8/EP, TDFN33-8

APPLICATIONS
• Mobile Phone
• Wireless Headsets
• Portable Media Players
• Cradle Chargers
• Portable Devices

ACT3704YH
ACT3704YH-T
ACT3704NH-T

Trackback :: http://datasheetblog.com/trackback/1477

댓글을 달아 주세요 Comment

The ISL6256, ISL6256A is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries. High Efficiency is achieved by a synchronous buck topology and the use of a MOSFET, instead of a diode, for selecting power from the adapter or battery. The low side MOSFET emulates a diode at light loads to improve the light load efficiency and prevent
system bus boosting.
The constant output voltage can be selected for 2, 3 and 4 series Li-Ion cells with 0.5% accuracy over-temperature. It can also be programmed between 4.2V+5%/cell and 4.2V- 5%/cell to optimize battery capacity. When supplying the load and battery charger simultaneously, the input current limit for the AC adapter is programmable to within 3% accuracy to avoid overloading the AC adapter, and to allow the system to make efficient use of available adapter power for charging. It also has a wide range of programmable charging current. The
ISL6256, ISL6256A provides outputs that are used to monitor the current drawn from the AC adapter, and monitor for the presence of an AC adapter. The ISL6256, ISL6256A automatically transitions from regulating current mode to regulating voltage mode.
ISL6256, ISL6256A has a feature for automatic power source selection by switching to the battery when the AC adapter is removed or switching to the AC adapter when the AC adapter
is available. It also provides a DC adapter monitor to support aircraft power applications with the option of no battery charging.

Features
• ±0.5% Charge Voltage Accuracy (-10°C to +100°C)
• ±3% Accurate Input Current Limit
• ±3% Accurate Battery Charge Current Limit
• ±25% Accurate Battery Trickle Charge Current Limit
• Programmable Charge Current Limit, Adapter Current Limit and Charge Voltage
• Fixed 300kHz PWM Synchronous Buck Controller with Diode Emulation at Light Load
• Overvoltage Protection
• Output for Current Drawn from AC Adapter
• AC Adapter Present Indicator
• Fast Input Current Limit Response
• Input Voltage Range 7V to 25V
• Support 2-, 3- and 4-Cells Battery Pack
• Up to 17.64V Battery-Voltage Set Point
• Control Adapter Power Source Select MOSFET
• Thermal Shutdown
• Aircraft Power Capable
• DC Adapter Present Indicator
• Battery Discharge MOSFET Control
• Less than 10μA Battery Leakage Current
• Supports Pulse Charging
• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications
• Notebook, Desknote and Sub-notebook Computers
• Personal Digital Assistant

ISL6256HRZ
ISL6256HAZ
ISL6256AHRZ
ISL6256AHAZ

Trackback :: http://datasheetblog.com/trackback/1300

댓글을 달아 주세요 Comment

General Description
The AAT3663 BatteryManager™ is a member of AnalogicTech’s Total Power Management IC™
family. This device is an integrated single/dual cell Lithium-Ion (Li-Ion) / polymer battery charger IC designed to operate from USB ports or an AC adapter inputs up to an input voltage of 13.2V.
AAT3663 precisely regulates battery charge voltage and current for 4.2V and 8.4V Li-Ion battery
cells. The battery charging current is user programmed up to 1A by an external resistor.
Battery charge state is continuously monitored for fault conditions. A Digital Thermal Loop Control maintains the maximum possible battery charging current for the optimum set of input to output power dissipation and ambient temperature conditions. In the event of an over-current, over-voltage, shortcircuit, or over-temperature fault condition, the device will automatically shut down, thus protecting the charger and the battery under charge.
Two status monitor output pins are provided to indicate the battery charge status by directly driving external LEDs. Additionally, an open-drain powersource detection output (ADPP#) is provided to report presence of an input power supply
The AAT3663 is available in a thermally enhanced, space-saving, 14-pin 3x3 mm TDFN package and is specified for operation over the -40°C to +85°C temperature range.

Features
• 4.0V ~ 13.2V Input Voltage Range
• Compatible with USB or AC Adapter Sources
• Programmable Fast Charge Current from 100mA to 1A
• Programmable Charge Termination Current
• Digital Thermal Loop Charge Reduction
• Less Than 0.4μA Battery Leakage Current
• Programming Charge Timer
• Battery Temperature Sensing
• Battery Temp Sense Open Circuit Detection
• Automatic Recharge Sequencing
• Automatic Trickle Charge for Battery Pre-Conditioning
• Automatic Charge Termination Shutdown/Sleep Mode
• Less than 1μA Shutdown Current
• Over-Voltage and Over-Current Protection
• Power On Reset and Soft Start
• 3x3mm 14-pin TDFN Package

Applications
• Bluetooth™ Headset
• Cell Phones
• Digital Still Cameras
• MP3 Players
• Personal Data Assistants (PDAs)
• Other Li-Ion Battery Powered Devices

AAT3663IWO-4.2-1-T1
AAT3663IWO-4.2-2-T1

Trackback :: http://datasheetblog.com/trackback/1217

댓글을 달아 주세요 Comment

General Description
The AAT3683 BatteryManager is a highly integrated single-cell lithium-ion / polymer (Li-Ion) battery  charger that operates from a USB port or an AC adapter input up to an input voltage of 6.5V.
The AAT3683 precisely regulates battery charge voltage and current for 4.2V Li-Ion battery cells.
The battery charging current can be set by an external resistor up to 1A.
Digital Thermal Loop Control maintains the maximum possible battery charging current for the given set of input to output power dissipation and ambient temperature conditions.
Battery charge state is continuously monitored for fault conditions. In the event of an over-current, over-voltage, short-circuit, or over-temperature condition, the device will shut down automatically, thus protecting the charging device, control system, and the battery under charge. A status monitor output pin is provided to indicate the battery charge status by directly driving an external LED.
An open-drain power source detection output is provided to report the power supply status.
The AAT3683 is available in the Pb-free, thermallyenhanced, space-saving 2.2x2.2mm 10-pin STDFN (AAT3683-2 and -3) and 16-pin QFN33 (AAT3683-4) packages and is specified for operation over the -40°C to +85°C temperature range.

Features
• USB or AC Adapter Input
• Programmable from 100mA to 1A
• 4.0V to 6.5V Input Voltage Range
• High Level of Integration with Internal:
— Charging Device
— Reverse Blocking Diode
— Current Sensing
• Digital Thermal Regulation
• Charge Current Programming (ISET)
• Charge Termination Current Programming (TERM)
• Charge Timer (CT)
• Battery Temperature Sensing (TS)
• TS Pin Open Detection
• Automatic Recharge Sequencing
• Automatic Trickle Charge for Battery Pre- Conditioning (no trickle charge option available)
• Full Battery Charge Auto Turn-Off / Sleep Mode / Charge Termination
• 1μA Max. Shutdown Current
• Over-Voltage and Over-Current Protection
• Emergency Thermal Protection
• Power On Reset and Soft Start
• 2.2x2.2mm STDFN-10 (AAT3863-2 and -3) and QFN33-16 (AAT3683-4) Packages

Applications
• Bluetooth Headsets, Headphones, Accessories
• Cellular Phones
• Digital Still Cameras
• MP3, Portable Music, and Portable Media Players
• Personal Data Assistants Handheld Computers
• Other Li-Ion Battery-Powered Devices

AAT3683IOQ-4.2-2-T1
AAT3683IOQ-4.2-3-T1
AAT3683IVN-4.2-4-T1

Trackback :: http://datasheetblog.com/trackback/843

댓글을 달아 주세요 Comment