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LTC4002 Datasheet PDF

Part Series:LTC4002 Series
Category:Battery Management
Description:LINEAR TECHNOLOGY LTC4002ES8-8.4#PBF Battery Charger for 2 Cells of Li-Ion battery, 22V input, 8.4V / 1.5A charge, SOIC-8
Document:LTC4002EDD-4.2 Datasheet PDF (20 Pages)

LTC4002 Battery Management Datasheet PDF

LTC4002 Datasheet PDF Battery Management

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LTC4002ES8-8.4#PBF - Linear Technology Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
8 Pin
Supply Voltage (DC)
22.0V (max)
Case/Package
SOIC-8
Input Voltage (DC)
22.0 V
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LTC4002ES8-8.4#PBF - Linear Technology Function Overview

The LTC4002ES8-8.4#PBF is a standalone Li-ion switch mode Battery Charger. The LTC®4002 is a complete battery charger controller for one (4.2V) or two (8.4V) cell lithium-ion batteries. With a 500kHz switching frequency, this 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 per cell with ±1% accuracy. When the input supply is removed, the charger automatically enters a low current sleep mode, dropping the battery drain current to 10µA. An internal comparator detects the near end-of-charge condition while an internal timer sets the total charge time and terminates the charge cycle. After the charge cycle ends, if the battery voltage drops below 4.05V per cell, a new charge cycle will automatically begin.
±1% Charge voltage accuracy
End-of-charge current detection output
3-hour Charge termination timer
Constant switching frequency for minimum noise
±5% Charge current accuracy
10µA Low reverse battery drain current
Automatic battery recharge
Automatic shutdown when input supply is removed
Automatic trickle charging of low voltage batteries
Battery temperature sensing and charge qualification
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