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LTC4009IUF#PBF - 

Battery Charger for 4 Cells of Li-Ion, Li-Pol battery, 28V input, 4V / 4A charge, QFN-20

LTC4009IUF#PBF - Battery Charger for 4 Cells of Li-Ion, Li-Pol battery, 28V input, 4V / 4A charge, QFN-20

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

Manufacturer Part No:
LTC4009IUF#PBF
Order Code:
1799845
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC4009IUF#PBF is a constant-current/constant-voltage Battery Charger Controller. It uses a synchronous quasiconstant frequency PWM control architecture that will not generate audible noise with ceramic bulk capacitors. Charge current is set by the combination of external sense, input and programming resistors. With no built-in termination, the LTC4009 family charges a wide range of batteries under external control. It features a fully adjustable output voltage. The device includes AC adapter input current limiting which maximizes the charge rate for a fixed input power level. An external sense resistor programs the input current limit and the ICL status pin indicates when the battery charge current is being reduced as a result of AC adapter current limiting. 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
  • Analog charge current monitor
  • Micropower shutdown

Applications

Power Management, Portable Devices, Computers & Computer Peripherals

Product Information

:
Li-Ion, Li-Pol
:
28V
:
4V
:
4A
:
QFN
:
20Pins
:
4
:
-40°C
:
125°C
:
Each
:
-
:
Yes
:
MSL 1 - Unlimited
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Awaiting Delivery

Available for backorder to lead times shown

 
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More stock available week commencing 08/10/18

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Alternatives Available

1647755 - Battery Charger for 6 Cells of Li-Ion, Li-Pol, NiCd, NiMH battery, 28V input, 28V/4 A charge, QFN-20

£6.04 £ 6.04
Price for:
Each
Multiple: 1 Minimum: 1
Quantity Price
1 + £6.04
25 + £3.70
100 + £3.37
No longer stocked:: No Longer Manufactured::
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