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LINEAR TECHNOLOGY  LTC4002ES8-4.2#PBF  Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 22V input, 4.2V / 1.5A charge, SOIC-8

LINEAR TECHNOLOGY LTC4002ES8-4.2#PBF
Manufacturer Part No:
LTC4002ES8-4.2#PBF
Order Code:
2102628
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC4002ES8-4.2#PBF is a standalone Li-ion Switch Mode Battery Charger for one (4.2V) or two (8.4V) cell lithium-ion batteries. With a 500kHz switching frequency, the LTC4002 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 LTC4002 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.
  • Wide input supply range (4.7 to 22V)
  • High efficiency current mode PWM controller with 500kHz switching frequency
  • ±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
  • Low 10µA 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
  • Stable with ceramic output capacitor

Product Information

Battery Type:
Li-Ion, Li-Pol
Input Voltage:
22V
Battery Charge Voltage:
4.2V
Charge Current Max:
1.5A
Battery IC Case Style:
SOIC
No. of Pins:
8Pins
No. of Series Cells:
1
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

  • Portable Devices
  • Computers & Computer Peripherals
  • Consumer Electronics

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000159

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