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LTC4085EDE#PBF - 

Battery Charger for 1 Cell of Li-Ion battery, 5.5V input, 4.2V / 1.2A charge, DFN-14

LINEAR TECHNOLOGY LTC4085EDE#PBF
LINEAR TECHNOLOGY LTC4085EDE#PBF

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

Manufacturer Part No:
LTC4085EDE#PBF
Order Code:
2295378
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC4085EDE#PBF is an USB Power Manager with ideal diode controller and Li-ion charger designed for portable battery powered applications. The part controls total current used by the USB peripheral for operation and battery charging. Battery charge current is automatically reduced such that the sum of the load current and charge current does not exceed the programmed input current limit. It includes a complete constant-current/constant- voltage linear charger for single cell Li-ion batteries. The float voltage applied to the battery is held to a tight 0.8% tolerance and charge current is programmable using an external resistor to ground. An end-of-charge status output CHRG indicates full charge. Total charge time is programmable by an external capacitor to ground. When the battery drops 100mV below the float voltage, automatic recharging of the battery occurs. Also featured is an NTC thermistor input used to monitor battery temperature while charging.
  • Seamless transition between input power sources (Li-ion battery, USB and 5V wall adapter)
  • Load dependent charging guarantees accurate USB input current compliance
  • Constant-current/constant-voltage operation with thermal feedback
  • Maximize charging rate without risk of overheating
  • Selectable 100% or 20% input current limit (e.g. 500/100mA)
  • Battery charge current independently programmable up to 1.2A
  • Preset 4.2V charge voltage with 0.8% accuracy
  • C/10 charge current detection output
  • NTC thermistor input for temperature qualified charging

Applications

Portable Devices, Imaging, Video & Vision, Consumer Electronics, Multimedia, Communications & Networking

Product Information

:
Li-Ion
:
5.5V
:
4.2V
:
1.2A
:
DFN
:
14Pins
:
1
:
-40°C
:
85°C
:
Each
:
-
:
MSL 1 - Unlimited
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12 In stock

12 in stock for next day delivery (UK stock)

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364 will be available for delivery on 23-Sep-2017

More stock available week commencing 11/12/17
£2.88 £ 2.88
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