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LINEAR TECHNOLOGY  LTC4002ES8-8.4#PBF  Battery Charger for 2 Cells of Li-Ion battery, 22V input, 8.4V/1.5 A charge, SOIC-8

LINEAR TECHNOLOGY LTC4002ES8-8.4#PBF
Technical Data Sheet (170.01KB) EN See all Technical Docs

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Product 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

 

Product Information

Battery Type:
Li-Ion
Input Voltage:
22V
Battery Charge Voltage:
8.4V
Charge Current Max:
1.5A
Battery IC Case Style:
SOIC
No. of Pins:
8Pins
No. of Series Cells:
2
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Computers & Computer Peripherals;
  • Consumer Electronics;
  • Portable Devices

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

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