Electronic Components Datasheet Search |
|
LTC4001 Datasheet(PDF) 1 Page - Linear Technology |
|
LTC4001 Datasheet(HTML) 1 Page - Linear Technology |
1 / 20 page 1 LTC4001 4001f ■ Handheld Battery-Powered Devices ■ Handheld Computers ■ Charging Docks and Cradles ■ Digital Cameras ■ Smart Phones 2A Single Cell Li-Ion Battery Charger 2A Synchronous Buck Li-Ion Charger ■ Low Power Dissipation ■ 2A Maximum Charge Current ■ No External MOSFETs, Sense Resistor or Blocking Diode Required ■ Remote Sensing at Battery Terminals ■ Programmable Charge Termination Timer ■ Preset 4.2V Float Voltage with ±0.5% Accuracy ■ Programmable Charge Current Detection/Termination ■ Automatic Recharge ■ Thermistor Input for Temperature Qualified Charging ■ Compatible with Current Limited Wall Adapters ■ Low Profile 16-Lead (4mm × 4mm) QFN Package Power Loss vs VBAT Charging (PWM Mode) FEATURES DESCRIPTIO APPLICATIO S TYPICAL APPLICATIO The LTC ®4001 is a 2A Li-Ion battery charger intended for 5V wall adapters. It utilizes a 1.5MHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET and sense resistor allow a physically small charger that can be embedded in a wide range of handheld applications. The LTC4001 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V float voltage. Input short-circuit protection is included so no blocking diode is required. Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection, tempera- ture qualified charging and overvoltage protection. The LTC4001 is available in a low profile (0.75mm) 16-lead (4mm × 4mm) QFN package. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. + PROG EN FAULT NTC CHRG PGND PVIN VINSENSE BAT BATSENS IDET TIMER 274 Ω 0.22 µF 10 µF 4001 TA01a 4.2V Li-Ion 10 µF VIN 4.5V TO 5.5V 0.1 µF SS SW SENSE LTC4001 1.5 µH GNDSENS VBAT (V) 3 0.75 1.00 1.25 4 4001 TA01b 0.50 0.25 0 3.25 3.5 3.75 4.25 VIN = 5V 2A CHARGER |
Similar Part No. - LTC4001 |
|
Similar Description - LTC4001 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |