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AIC1821

Features: ` Reduction in Board Size due to Miniature PackageSOT-25 and Less External Components.` Ultra-Low Quiescent Current at 7A (VCC=3.5V).` Ultra-Low Power-Down Current at 0.4A (VCC=2.3V).` Precision Overcharge Protection Voltage4.35V ± 30mV for the AIC1821A4.30V ± 30mV for the AIC1821B4.25V ...

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SeekIC No. : 004279107 Detail

AIC1821: Features: ` Reduction in Board Size due to Miniature PackageSOT-25 and Less External Components.` Ultra-Low Quiescent Current at 7A (VCC=3.5V).` Ultra-Low Power-Down Current at 0.4A (VCC=2.3V).` Pre...

AIC1821 Data Sheet

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Part Number:
AIC1821
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Reduction in Board Size due to Miniature Package
SOT-25 and Less External Components.
` Ultra-Low Quiescent Current at 7A (VCC=3.5V).
` Ultra-Low Power-Down Current at 0.4A (VCC=2.3V).
` Precision Overcharge Protection Voltage
4.35V ± 30mV for the AIC1821A
4.30V ± 30mV for the AIC1821B
4.25V ± 30mV for the AIC1821C
4.20V ± 30mV for the AIC1821D
` Built-in Delay Time Circuits for Overcharge, Overdischarge,and Overcurrent Protection.
` Load Detection Function during Overcharge Mode.
` Two Detection Levels for Overcurrent Protection.




Application

· Protection IC for One-Cell Lithium-Ion Battery Pack.




Pinout

Connection Diagram

Connection Diagram




Specifications

Supply Voltage ................................................................... 18V
DC Voltage Applied on other Pins ........ .............................. 18V
Operating Temperature Range ............................. -40°C~85°C
Storage Temperature Range ....... ..................... - 65°C~125°C




Description

The AIC1821 battery protection IC is designed to protect lithium-ion battery from damage or degrading the lifetime due to overcharge, overdischarge, and/or overcurrent for one-cell lithium-ion battery powered systems, such as cellular phones. The ultra-small package and less required external components make it ideal to integrate the AIC1821 into the limited space of battery pack.

The accurate 50mV overcharging detection voltage ensures safe and full utilization charging. Four different specification values for overcharge protection voltage are provided for various protection requirements. The very low standby current of AIC1821 drains little current from the cell while in storage.






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