LTC4061

PRODUCTION

Standalone Linear Li-Ion Battery Charger with Thermistor Input

Part Models
2
1ku List Price
Starting From $2.66
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Part Details

  • Charge Current Programmable Up to 1A
  • Charges Single-Cell Li-Ion Batteries Directly from USB Port
  • Preset Charge Voltage with ±0.35% Accuracy
  • Thermistor Input for Temperature Qualified Charging
  • Input Supply Present Logic Output
  • Thermal Regulation Maximizes Charge Rate Without Risk of Overheating
  • Programmable Charge Current Detection/ Termination
  • Programmable Charge Termination Timer
  • Smart Pulsing Error Feature
  • SmartStart Prolongs Battery Life
  • 20μA Charger Quiescent Current in Shutdown
  • Available in a Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package
LTC4061
Standalone Linear Li-Ion Battery Charger with Thermistor Input
800mA Single-Cell Li-Ion	Battery Charger (C/10 Termination) Complete	 Charge Cycle	(1100mAh Battery) Product Package 1
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Dual-Supply Monitors 1
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LTC4361-1
LTC4361-2
Overvoltage/Overcurrent Protection Controller
PowerPath, Ideal Diodes, and Load Switches 1
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Pushbutton Controllers 1
LTC2955 RECOMMENDED FOR NEW DESIGNS Pushbutton On/Off Controller with Automatic Turn-On
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Evaluation Kits

eval board
DC788A

LTC4061EDD | Single Cell Li-Ion Battery Charger, VIN = 4.3V to 8V, Batt = 4.2V @ 50mA to 1A

Product Details

Demonstration circuit 788A is a complete constant-current, constant-voltage battery charger for one Lithium-Ion cell and featuring the LTC4061EDD. The demo board has an input voltage range of 4.3V to 8V, suitable for USB applications. Jumpers on the board allow charge currents from 50mA to 1A to be programmed and several charge termination methods to be used. Terminals are provided for adding a thermistor for sensing battery temperature, shutting down the charger, monitoring charge current and programming the minimum charge current level for termination (IDETECT).


The LTC4061 features an internal P-channel power MOSFET with a unique thermal feedback loop that reduces the output current under high ambient temperature and/or high power dissipation conditions. This feature allows the charger to provide higher charge currents under normal conditions and still provide safe charging under abnormal conditions such as high ambient temperature, high input voltage or low battery voltage.

DC788A
LTC4061EDD | Single Cell Li-Ion Battery Charger, VIN = 4.3V to 8V, Batt = 4.2V @ 50mA to 1A
DC788A - Schematic

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