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LINEAR TECHNOLOGY  LTC4012CUF#PBF  Battery Charger for 4 Cells of Li-Ion, Li-Pol battery, 28V input, 28V charge, QFN-20

LINEAR TECHNOLOGY LTC4012CUF#PBF
LINEAR TECHNOLOGY LTC4012CUF#PBF
Technical Data Sheet (385.89KB) EN See all Technical Docs

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LINEAR TECHNOLOGY LTC4012CUF#PBF
LINEAR TECHNOLOGY LTC4012CUF#PBF

Product Overview

The LTC4012CUF#PBF is a constant-current/constant-voltage Battery Charger Controller uses a synchronous quasi-constant frequency PWM control architecture that will not generate audible noise with ceramic bulk capacitors. Charge current is set by external resistors and can be monitored as an output voltage. With no built-in termination, the LTC4012 family charges a wide range of batteries under external control. It features fully adjustable output voltage. The device includes AC adapter input current limiting, which maximizes charge rate for a fixed input power level. An external sense resistor programs the input current limit and the ICL status pin indicates reduced charge current as a result of AC adapter current limiting. Ideal diode control at the adaptor input improves charger efficiency. The CHRG status pin is active during all charging modes, including special indication for low charge current.
  • General purpose battery charger controller
  • Efficient 550kHz Synchronous buck PWM topology
  • ±0.5% Output float voltage accuracy
  • 4% Accurate programmable charge current
  • 3% Accurate programmable AC adapter current limit
  • No audible noise with ceramic capacitors
  • INFET low loss ideal diode PowerPath™ control
  • Analog charge current monitor
  • Micropower shutdown

Product Information

Battery Type:
Li-Ion, Li-Pol
Input Voltage:
28V
Battery Charge Voltage:
28V
Charge Current Max:
-
Battery IC Case Style:
QFN
No. of Pins:
20Pins
No. of Series Cells:
4
Operating Temperature Min:
0°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

  • Consumer Electronics;
  • Computers & Computer Peripherals;
  • Power Management;
  • Portable Devices

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

Associated Products

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