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Part Name(s) : RT9503A RT9503AGQW RT9503APQW Richtek
Richtek Technology
Description : FULLY INTEGRATED LINEAR SINGLE CELL LI-ION BATTERY CHARGER WITH POWER PATH View

General Description
The RT9503A is a FULLY INTEGRATED low cost SINGLE-CELL LiIon BATTERY CHARGER IC ideal for portable applications. The RT9503A is capable of being POWERed up via the AC adapter and USB (Universal Serial Bus) port inputs. The RT9503A can automatically detect and select the AC adapter and the USB port as the POWER source for the CHARGER. The RT9503A enters sleep mode when both supplies are removed.

Features
Automatic Input Supplies Selection
18V Maximum Rating for AC Adapter
INTEGRATED Selectable 100mA and 500mA USB Charge Current
Internal INTEGRATED POWER MOSFETs
AC Adapter POWER Good Status Indicator
Charge Status Indicator
External Capacitor Programmable Safety Timer
Under Voltage Protection
Over Voltage Protection
Automatic Recharge Feature
BATTERY Temperature Monitoring
Small 16-Lead WQFN Package
Thermal Feedback Optimizing Charge Rate
POWER PATH Controller
RoHS Compliant and Halogen Free

Applications
Digital Cameras
CELLular Phones
PDAs , Smart Phones and MP3 Players
Portable Instruments

Part Name(s) : RT9503 RT9503GQW RT9503PQW Richtek
Richtek Technology
Description : FULLY INTEGRATED LINEAR SINGLE CELL LI-ION BATTERY CHARGER WITH POWER PATH View

General Description
The RT9503 is a FULLY INTEGRATED low cost SINGLE-CELL LiIon BATTERY CHARGER IC ideal for portable applications. The
RT9503 is capable of being POWERed up from AC adapter and the USB (Universal Serial Bus) port inputs. The
RT9503 can automatically detect and select the AC adapter and the USB port as the POWER source for the
CHARGER. The RT9503 enters sleep mode when both supplies are removed.

Features
Automatic Input Supplies Selection
18V Maximum Rating for AC Adapter
INTEGRATED Selectable 100mA and 500mA USB Charge Current
Internal INTEGRATED POWER FETs AC Adapter POWER Good Status Indicator
Charge Status Indicator
External Capacitor Programmable Safety Timer
Under Voltage Protection
Over Voltage Protection
Automatic Recharge Feature
BATTERY Temperature Monitoring
Small 16-Lead WQFN Package
Thermal Feedback Optimizing Charge Rate
POWER PATH Controller
RoHS Compliant and 100% Lead (Pb)-Free

Applications
Digital Cameras
CELLular Phones
PDAs and Smart Phones and MP3
Portable Instruments

Part Name(s) : RT9525 Richtek
Richtek Technology
Description : LINEAR SINGLE CELL LI-ION BATTERY CHARGER WITH Auto POWER PATH View

General Description
The RT9525 is an INTEGRATED SINGLE CELL LI-ION BATTERY CHARGER WITH Auto POWER PATH Management (APPM). No external MOSFETs are required. The RT9525 enters sleep mode when POWER is removed. Charging tasks are optimized by using a control algorithm to vary the charge rate including pre-charge mode, fast charge mode and constant voltage mode.

Features
28V Maximum Rating for VIN POWER
Selectable POWER Current Limit (0.1A / 0.5A / 1.5A)
INTEGRATED POWER MOSFETs
Auto POWER PATH Management (APPM)
Programmable Charging Current Timer and Safe Charge Timer
Under Voltage Protection
Over Voltage Protection
POWER Good and CHARGER Status Indicator
Optimized Charge Rate via Thermal Feedback
16-Lead WQFN Package
RoHS Compliant and Halogen Free

Applications
Digital Cameras
PDAs and Smart Phones
Portable Instruments

Part Name(s) : BQ25060 BQ25060DQCR BQ25060DQCT TI
Texas Instruments
Description : 1A, SINGLE-Input, SINGLE CELL LI-ION BATTERY CHARGER WITH 50-mA LDO, and External POWER PATH Control View

DESCRIPTION
The bq25060 is a highly INTEGRATED LI-ION LINEAR BATTERY CHARGER targeted at space-limited portable applications. It operates from either a USB port or AC Adapter and charges a SINGLE-CELL LI-ION BATTERY WITH up to 1A of charge current. The 30V input voltage range WITH input over-voltage protections supports low-cost unregulated adapters.
The bq25060 has a SINGLE POWER output that charges the BATTERY. The system load is connected to OUT. The low-BATTERY system startup circuitry maintains OUT greater than 3.4V whenever an input source is connected. This allows the system to start-up and run whenever an input source is connected regardless of the BATTERY voltage. The charge current is programmable up to 1A using the ISET input. Additionally, a 4.9V 50mA LDO is INTEGRATED into the IC for supplying low POWER external circuitry.
The BATTERY is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded. The CHARGER POWER stage and charge current sense functions are FULLY INTEGRATED. The CHARGER function has high accuracy current and voltage regulation loops, charge status display, and charge termination.

FEATURES
• 30V input Rating, WITH 10.5V Over-Voltage
   Protection (OVP)
• FET Controller for External BATTERY FET for
   External POWER PATH Control (BGATE)
• Input Voltage Dynamic POWER Management
• 50mA INTEGRATED Low Dropout LINEAR
   Regulator (LDO)
• Programmable Charge Current Through ISET
   and EN Pin
• 0.5% BATTERY Voltage Regulation Accuracy
• 7% Charge Current Regulation Accuracy
• Thermal Regulation and Protection
BATTERY NTC Monitoring During Charge
• Status Indication – Charging/Done
• Available in small 2mm × 3mm 10 Pin SON
   Package

APPLICATIONS
• Smart Phones
• Mobile Phones
• Portable Media Players
• Low POWER Handheld Devices


Part Name(s) : RT9519A RT9519AGQW Richtek
Richtek Technology
Description : LINEAR SINGLE CELL Li-lon BATTERY CHARGER WITH Auto POWER PATH Management View

General Description
The RT9519A is an INTEGRATED SINGLE CELL LI-ION BATTERY CHARGER WITH Auto POWER PATH Management (APPM). No external MOSFETs are required. The RT9519A enters sleep mode when POWER is removed. Charging tasks are optimized by using a control algorithm to vary the charge rate, including pre-charge mode, fast charge mode and constant voltage mode. For the RT9519A, the charge current can also be programmed WITH an external resistor and modified WITH an external GPIO. The scope that the BATTERY regulation voltage can be modified WITH an external GPIO depends on the BATTERY temperature.

Features
• 28V Maximum Rating for VIN POWER
• Selectable POWER Current Limit (0.1A / 0.5A / 1.5A)
INTEGRATED POWER MOSFETs
• Auto POWER PATH Management (APPM)
BATTERY Charging Current Control
BATTERY Regulation Voltage Control
• Programmable Charging Current and Safe Charge Timer
• Under Voltage Protection, Over Voltage Protection
POWER Good and Charge Status Indicator
• Optimized Charge Rate via Thermal Feedback
• Thin 20-Lead WQFN Package
• RoHS Compliant and Halogen Free

Applications
• Digital Cameras
• PDAs and Smart Phones
• Portable Instruments

Part Name(s) : BQ24170 BQ24170RGYR BQ24170RGYT BQ24172 BQ24172RGYR BQ24172RGYT TI
Texas Instruments
Description : 1.6-MHz Synchronous Switched-Mode LI-ION and Li-Polymer Stand-Alone BATTERY CHARGER WITH INTEGRATED MOSFETs and POWER PATH Selector View

Description
The bq2417x device is a highly INTEGRATED stand-alone LI-ION and Li-Polymer switched-mode BATTERY CHARGER WITH two INTEGRATED N-channel POWER MOSFETs. The device offers a constant-frequency synchronous PWM controller WITH high-accuracy regulation of input current, charge current, and voltage. The bq2417x closely monitors the BATTERY pack temperature to allow charge only in a preset temperature window. The bq24170 charges one, two, or three CELLs (selected by CELL pin), and the bq24172 is adjustable for up to three series Li+ CELLs.

Features
• 1.6-MHz Synchronous Switched-Mode CHARGER
   WITH 4-A INTEGRATED N-MOSFETs
• Up to 94% Efficiency
• 30-V Input Rating WITH Adjustable Overvoltage
   Protection
   – 4.5-V to 17-V Input Operating Voltage Range
BATTERY Charge Voltage
   – bq24170: 1-, 2-, or 3-CELL WITH 4.2 V/CELL
   – bq24172: Adjustable Charge Voltage
• High Integration
   – Automatic POWER PATH Selector Between
      Adapter and BATTERY
   – Dynamic POWER Management
   – INTEGRATED 20-V Switching MOSFETs
   – INTEGRATED Bootstrap Diode
   – Internal Digital Soft Start
• Safety
   – Thermal Regulation Loop Throttles Back
      Current to Limit TJ = 120°C
   – Thermal Shutdown
   – BATTERY Thermistor Sense Hot/Cold Charge
Suspend and BATTERY Detect
   – Adjustable Input Overvoltage Protection
   – Cycle-by-Cycle Current Limit
• Accuracy
   – ±0.5% Charge Voltage Regulation
   – ±4% Charge Current Regulation
   – ±4% Input Current Regulation
• <15-μA BATTERY Current WITH Adapter Removed
• <1.5-mA Input Current WITH Adapter Present and
   Charge Disabled

Applications
• Tablet PCs
• Portable Data Capture Terminals
• Portable Printers
• Medical Diagnostics Equipment
BATTERY Bay CHARGERs
BATTERY Backup Systems

Part Name(s) : MAX1898 MAX1898EUB42 MAX1898EUB41 MaximIC
Maxim Integrated
Description : LINEAR CHARGER for SINGLE-CELL Li+ BATTERY View

General Description
The MAX1898, WITH an external PNP or PMOS transistor, forms a complete CHARGER for 1-CELL lithium-ion (Li+) batteries. The MAX1898 provides accurate constant-current/constant-voltage charging. BATTERY regulation voltage accuracy is ±0.75% for optimum BATTERY performance and cycle life. Charging current is user set, but is sensed internally so no external current-sense resistor is needed.

Features
♦ Simple, Safe LINEAR CHARGER
♦ Uses Low-Cost PNP or PMOS Pass Element
♦ 4.5V to 12V Input Range
♦ Internal Current-Sense Resistor
♦ ±0.75% Voltage Accuracy
♦ Programmable Charging Current
♦ Automatic Input POWER-Source Detection
♦ LED Charge Status Indicator
♦ Programmable Safety Timer
♦ Current-Sense Monitor Output
♦ Optional/Adjustable Auto-Restart
♦ Small µMAX Package

Applications
    SINGLE-CELL Li+ POWERed Portables
    Self-Charging BATTERY Packs
    PDAs
    CELL Phones
    Cradle CHARGERs

Part Name(s) : BQ24160 BQ24160A BQ24160ARGER BQ24160ARGET BQ24160RGER BQ24160RGET BQ24160YFFR BQ24160YFFT BQ24161 BQ24161B BQ24161BRGER BQ24161BRGET BQ24161RGER BQ24161RGET BQ24161YFFR BQ24161YFFT BQ24163 BQ24163RGER BQ24163RGET BQ24163YFFR BQ24163YFFT BQ24168 BQ24168RGER BQ24168RGET BQ24168YFFR Texas-Instruments
Texas Instruments
Description : 2.5A, Dual-Input, SINGLE-CELL Switched-Mode LI-ION BATTERY CHARGER WITH POWER PATH Management and I2C Interface View

Description
The bq24160, bq24160A, bq24161, bq24161B, bq24163, and bq24168 are highly INTEGRATED SINGLE CELL LI-ION BATTERY CHARGER and system POWER PATH management devices targeted for space-limited, portable applications WITH high-capacity batteries. The SINGLE-CELL CHARGER has dual inputs which allow operation from either a USB port or a higher-POWER input supply (that is, AC adapter or wireless charging input) for a versatile solution. The two inputs are FULLY isolated from each other and are easily selectable using the I2C interface.
The POWER PATH management feature allows the bq2416xx to POWER the system from a high-efficiency DC-DC converter while simultaneously and independently charging the BATTERY. The POWER-PATH management architecture enables the system to run WITH a defective or absent BATTERY pack and enables instant system turnon even WITH a totally discharged BATTERY or no BATTERY.

Features
• High-Efficiency Switched-Mode CHARGER WITH
   Separate POWER PATH Control
   – Instantly Start Up System from a Deeply
      Discharged BATTERY or No BATTERY
• Compatible WITH MaxLife™ Technology for Faster
   Charging When Used in Conjunction WITH
   bq27530
• Dual Input, INTEGRATED FET CHARGER for up to 2.5-A
   Charging
   – 20-V input rating, WITH Overvoltage Protection
      (OVP)
   – 6.5 V for USB Input up to 1.5 A
   – 10.5 V for IN input (bq24160, bq24160A,
      bq24161, bq24163) up to 2.5 A
   – 6.5 V for IN input (bq24168) up to 2.5 A
• Safe and Accurate BATTERY-Management
   Functions
   – 1% BATTERY Regulation Accuracy
   – 10% Charge Current Accuracy
• Charge Parameters Programmed Using I2C
   Interface
• Voltage-Based, NTC Monitoring Input
   – JEITA Compatible (bq24160, bq24160A,
      bq24161B, bq24163, bq24168)
• Available in small 2.8-mm × 2.8-mm 49-ball
   WCSP or 4-mm × 4-mm VQFN-24 Packages

Applications
• Handheld Products
• Portable Media Players
• Portable Equipment
• Netbook and Portable Internet Devices

Part Name(s) : RT9505 RT9505PQW RT9505GQW Richtek
Richtek Technology
Description : LINEAR SINGLE CELL LI-ION BATTERY CHARGER IC View

General Description
The RT9505 is a FULLY INTEGRATED low cost SINGLE-CELL LI-ION BATTERY CHARGER IC ideal for portable applications. The RT9505 is capable of being POWERed up from AC adapter. The RT9505 enters sleep mode when AC adapter is removed.

Features
• 18V Maximum Rating for AC Adapter
• Internal Integrate P-MOSFETs
• AC Adapter POWER Good Status Indicator
• Charge Status Indicator
• Under Voltage Protection
• Over Voltage Protection
• Automatic Recharge Feature
BATTERY Temperature Monitoring
• Small 10-Lead WDFN Package
• Thermal Feedback Optimizing Charge Rate
• RoHS Compliant and 100% Lead (Pb)-Free

Applications
• Digital Cameras
CELLular Phones
• Personal Data Assistants (PDAs)
• MP3 Players
• Hand Held PCs

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