LTC4002 DC 4.7-24V to 4.V Switching Battery Charging Module for Lithium Battery Charging

  • Item ID #090457

List Price: $19.00 Our Price: $8.90Save 53%

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The LTC4002 is DC 4.7-24V to 4.V switching regulator, widte pressure, has undervoltage protection, conversion efficiency up to 90%, it very suitable for Lithium battery.

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  • Input Voltage :4.7-24V (when the input voltage exceeds 12V, output current 2A, please enhance heat sink)
  • Charge voltage: 4.2V
  • Charge voltage accuracy: ± 1%
  • Suitable for battery: 3.6V 3.7V Lithium Battery 500mAh ~ 15000mAh
  • Charging current: 2A
  • Charge current accuracy: ± 5%
  • Charging indication: when charging, Blue LED bright; when full charge, Blue LED off ( recommend charge one more hour when the Blue LED turn off )
  • Battery anti-reflux: NONE ( please Series an Diode (SK34,SK54,SS34 etc.) at the input voltage Postive )
  • Conversion efficiency: Max 90% (5V input)
  • 12V input efficiency is about 85%
  • 24V input efficiency is about 80%
  • Switching frequency: 500kHZ
  • Input voltage under-voltage protection: 4.2V (TYP)
  • Battery intrusion Current: 10uA (without battery polarity protection)
  • Operating temperature: Industrial (-40 ° C to +85 ° C)
  • Full load temperature rise: 30 ° C
  • Reverse battery protection: No
Some Applications:
  • DIY a lithium battery charger. power adapter (DC4.7-24V) to charge lithium battery.
  • Fast lithium battery charger, 2A can charge lithium battery faster.
  • Some Industrial applications
  • Solar panels to charge lithium batteries
Package Includes:
  • 1x Lithium Battery Charger

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