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LINEAR TECHNOLOGY  LTC4067EDE#PBF  Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 5.5V input, 4.2V / 1.25A charge, DFN-12

LINEAR TECHNOLOGY LTC4067EDE#PBF
Manufacturer Part No:
LTC4067EDE#PBF
Order Code:
2295376
Technical Datasheet:
See all Technical Docs

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Product Overview

The LTC4067EDE#PBF is an USB Power Manager with OVP and Li-ion/polymer charger designed for portable battery powered applications. The part controls total current used by the USB peripheral for operation and battery charging. The total input current may be left unregulated or it may be limited to 20 or 100% of the programmed value up to 1.5A (typically 500mA). 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. With the addition of an external P-channel MOSFET the LTC4067 can withstand voltages up to 13V. 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 0.4% tolerance and charge current is programmed using an external resistor to ground. An end-of-charge status output, CHRG, indicates full charge.
  • Programmable input current limit
  • Single resistor at CLPROG pin to set and monitor input current battery charger
  • 13V Overvoltage protection
  • Full featured battery charger with 4.2V float
  • Up to 1.25A programmable charge current
  • Thermal regulation maximizes charge current without risk of overheating
  • Internal 2 hour termination timer from onset of voltage mode charging
  • Automatic load switchover to battery power with internal ideal diode and drive output
  • NTC thermistor input
  • Bad battery time-out detection

Product Information

Battery Type:
Li-Ion, Li-Pol
Input Voltage:
5.5V
Battery Charge Voltage:
4.2V
Charge Current Max:
1.25A
Battery IC Case Style:
DFN
No. of Pins:
12Pins
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

  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000833

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