Product Summary

The LTC4002ES8-4.2#TR is a complete battery charger controller for single cell 4.2V lithium-ion batteries. With a 500kHz switching frequency, the LTC4002ES8-4.2#TR provides a small, simple and efficient solution to fast charge Li-Ion batteries from a wide range of supply voltages. An external sense resistor sets the charge current with ±5% accuracy. An internal resistor divider and precision reference set the final float voltage to 4.2V with ±1% accuracy. The applications of the LTC4002ES8-4.2#TR are (1)CPU power supplies; (2)multiple logic supply generator; (3)distributed power applications; (4)high efficiency power conversion.

Parametrics

LTC4002ES8-4.2#TR absolute maximum ratings: (1)Supply Voltage (VCC): 24V; (2)GATE : (VCC –8V)to VCC BAT, SENSE: –0.3V to 14V; (3)CHRG, COMP, NTC: -0.3V to 8V; (4)Operating Temperature Range: –40°C to 85°C; (5)Storage Temperature Range: –65°C to 150°C; (6)Lead Temperature (Soldering, 10 sec): 300°C.

Features

LTC4002ES8-4.2#TR features: (1)Wide Input Supply Range: 4.7V to 24V; (2)High Efficiency Current Mode PWM Controller with 500kHz Switching Frequency; (3)±1% Charge Voltage Accuracy; (4)End-of-Charge Current DetectioOutput; (5)3 Hour Charge TerminatioTimer; (6)Constant Switching Frequency for Minimum Noise; (7)±5% Charge Current Accuracy; (8)Low 10mA Reverse Battery DraiCurrent; (9)Automatic Battery Recharge; (10)Automatic ShutdowWheInput Supply is Removed; (11)Automatic Trickle Charging of Low Voltage Batteries; (12)Battery Temperature Sensing and Charge Qualification; (13)Stable with Ceramic Output Capacitor; (14)8-Lead SO and 10-Lead DFN Packages.

Diagrams

LTC4002ES8-4.2#TR pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC4002ES8-4.2#TR
LTC4002ES8-4.2#TR


IC CHARGER BATTERY LI-ION 8-SOIC

Data Sheet

0-5000: $1.18
LTC4002ES8-4.2#TRPBF
LTC4002ES8-4.2#TRPBF


IC CHARGER BATTERY LI-ION 8-SOIC

Data Sheet

0-2500: $1.18