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LINEAR TECHNOLOGY  LTC4156IUFD#PBF  CHARGER, LI-ION, I2C, 3.5A, 15W, 28QFN

LINEAR TECHNOLOGY LTC4156IUFD#PBF
Technical Data Sheet (538.80KB) EN See all Technical Docs

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Product Overview

The LTC4156IUFD#PBF is a 15 watt I2C controlled Power Manager with PowerPath™ instant-on operation, high efficiency switching battery charging and USB compatibility. The LTC4156 seamlessly manages power distribution from two 5V sources, such as an USB port and a wall adapter, to a single-cell rechargeable lithium iron phosphate battery and a system load. The LTC4156's switching battery charger automatically limits its input current for USB compatibility or may draw up to 3A from a high power wall adapter. The high efficiency step-down switching charger is designed to provide maximum power to the application and reduced heat in high power density applications. I2C adjustability of input current, charge current, battery float voltage, charge termination and many other parameters allows maximum flexibility. I2C status reporting of key system and charge parameters facilitates intelligent control decisions.
  • High efficiency charger capable of 3.5A charge current
  • Charge control algorithm specifically designed for LiFePO4 batteries (Lithium Iron phosphate)
  • Monolithic switching regulator makes optimal use of limited power and thermal budget
  • Dual input overvoltage protection controller
  • Priority multiplexing for multiple inputs
  • I2C/SMBus control and status feedback
  • NTC thermistor ADC for temperature dependent charge algorithms (JEITA)
  • Instant-on operation with low battery
  • Battery ideal diode controller for power management

Product Information

Supply Voltage:
5V
No. of Step-Down DC - DC Converters:
1
No. of LDO Regulators:
-
No. of Regulated Outputs:
1
Digital IC Case:
QFN
No. of Pins:
28Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Medical;
  • Industrial

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):
.000261

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