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LTC1731EMS8-8.4#PBF - 

Battery Charger for 2 Cells of Li-Ion battery, 12V input, 8.4V / 585mA charge, MSOP-8

LINEAR TECHNOLOGY LTC1731EMS8-8.4#PBF

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Manufacturer Part No:
LTC1731EMS8-8.4#PBF
Order Code:
1648013
Technical Datasheet:
(EN)
See all Technical Docs

Product Information

:
Li-Ion
:
-40°C
:
8.4V
:
85°C
:
MSOP
:
8Pins
:
12V
:
-
:
2
:
585mA
:
Each
:
MSL 1 - Unlimited
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Product Overview

The LTC1731EMS8-8.4#PBF is a Lithium-Ion Linear Battery Charger Controller that can also charge Nickel-cadmium (NiCd) and nickel-metal-hydride (NiMH) batteries with constant current using external termination. The external sense resistor sets the charge current with 7% accuracy. An internal resistor divider and precision reference set the final float potential with 1% accuracy. The output float voltages are set internally to 8.4V. When the input supply is removed, the LTC1731-8.4 automatically enters a low current sleep mode, dropping the battery drain current to typically 15µA. An internal comparator detects the end-of-charge (C/10) condition while a programmable timer, using an external capacitor, sets the total charge time. Fully discharged cells are automatically trickle charged at 10% of the programmed current until battery voltage exceeds 4.95V.
  • Complete linear charger controller for 2-cell Lithium-ion batteries
  • 1% Voltage accuracy
  • Programmable charge current
  • C/10 charge current detection output
  • Programmable charge termination timer
  • Automatic sleep mode when input supply is removed (15µA battery drain)
  • Automatic trickle charging of low voltage cells
  • Programmable for constant-current-only mode

Applications

Communications & Networking, Consumer Electronics, Computers & Computer Peripherals, Power Management

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