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LINEAR TECHNOLOGY  LTC4089EDJC-3#PBF  Special Function IC, USB Power Manager, 4.35 V to 5.5 V in, DFN-22

LINEAR TECHNOLOGY LTC4089EDJC-3#PBF
Manufacturer Part No:
LTC4089EDJC-3#PBF
Order Code:
2322424
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LTC4089EDJC-3#PBF is an USB Power Manager with high voltage Li-Ion battery charger. This device controls the 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 the charge current does not exceed the programmed input current limit. The LTC4089-3 also accommodates high voltage power supplies, such as 12V AC/DC wall adapters, Firewire or automotive power. The LTC4089-3 provides an adaptive output that tracks the battery voltage for high efficiency charging from the high voltage input. Under these conditions, a reduced float voltage will trade-OFF initial cell capacity for the benefit of increased capacity retention over the life of the battery. The charge current is programmable and an end-of-charge status output (CHRG) indicates full charge.
  • Seamless transition between power sources - Li-Ion battery, USB and 6 to 36V external supply
  • High efficiency 1.2A charger from 6 to 36V input with adaptive output control
  • 3.95V Float voltage improves battery lifespan and high temperature safety margin
  • Load dependent charging from USB input guarantees current compliance
  • 215R Internal ideal diode plus optional external ideal diode controller provides low loss power path
  • Constant-current/constant-voltage operation with thermal feedback to maximize charging rate
  • Selectable 100% or 20% Current limit (e.g., 500mA/100mA) from USB input
  • Preset 3.95V charge voltage with ±0.8% Accuracy
  • C/10 Charge current detection output
  • NTC thermistor input for temperature qualified charging
  • Green product and no Sb/Br

Product Information

IC Function:
USB Power Manager
Supply Voltage Min:
4.35V
Supply Voltage Max:
5.5V
IC Package Type:
DFN
No. of Pins:
22Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Consumer Electronics
  • Portable Devices
  • Imaging, Video & Vision
  • Power Management

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):
.000535

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