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ICS1722

Features: · Charge termination methods include:- Voltage slope- Charge timers· Four stage charge sequence:- Soft start charge- Fast charge- Topping charge- Maintenance charge· Reverse-pulse charging available in all charge stages· Nine programmable charge rates between 15 minutes (4C)· and four ho...

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SeekIC No. : 004370711 Detail

ICS1722: Features: · Charge termination methods include:- Voltage slope- Charge timers· Four stage charge sequence:- Soft start charge- Fast charge- Topping charge- Maintenance charge· Reverse-pulse charging...

ICS1722 Data Sheet

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Part Number:
ICS1722
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:

· Charge termination methods include:
- Voltage slope
- Charge timers
· Four stage charge sequence:
- Soft start charge
- Fast charge
- Topping charge
- Maintenance charge
· Reverse-pulse charging available in all charge stages
· Nine programmable charge rates between 15 minutes (4C)
· and four hours (C/4)
· Continuous polling mode for battery detection
· Six auxiliary modes include:
- Discharge-before-charge
- Ten hour C/10 conditioning charge
- Direct to C/40 maintenance charge
- Charging system test provided through controller
· Adjustable open circuit (no battery) voltage reference


Application

Battery charging systems for:
- Portable consumer electronics
- Power tools
- Audio/video equipment
- Communications equipment


Pinout

Connection Diagram


Specifications

Supply Voltage 6.5 V
Logic Input Levels -0.5 to VDD + 0.5 V
Ambient Operating Temperature 0 to 70
Storage Temperature -55 to 150

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only. Functional operation of the device at the Absolute Maximum Ratings or other conditions not consistent with the characteristics shown in this document is not recommended. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.




Description

The ICS1722 is a CMOS device designed for the intelligent charge control of either nickel-cadmium (NiCd) or nickel-metal hydride (NiMH) batteries. The controller uses a pulsed-current charging technique together with voltage slope termination. The ICS1722 employs a four stage charge sequence that provides a complete recharge without overcharging. The controller has nine userselectable charge rates and six user-selectable auxiliary modes vailable for customized charging systems.

The ICS1722 monitors for the presence of a battery and begins charging when a battery is installed. The ICS1722 is for applications where temperature sensing is not required by the charge controller.




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