Battery Charger for 16 Cells of NiCd, NiMH battery, 34V input, 4.8V / 2A charge, TSSOP-20

LTC4011CFE#PBF - Battery Charger for 16 Cells of NiCd, NiMH battery, 34V input, 4.8V / 2A charge, TSSOP-20

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Product Overview

The LTC4011CFE#PBF is a high efficiency standalone Nickel Battery Charger using few external components. A 550kHz PWM current source controller and all necessary charge initiation, monitoring and termination control circuitry are included. The LTC4011 automatically senses the presence of a DC adapter and battery insertion or removal. Heavily discharged batteries are precharged with a trickle current. It can simultaneously use both -ΔV and ΔT/Δt fast charge termination techniques and can detect various battery faults. If necessary, a top-off charge is automatically applied to NiMH batteries after fast charging is completed. The IC will also resume charging if the battery self-discharges after a full charge cycle. All LTC4011 charging operations are qualified by actual charge time and maximum average cell voltage. Charging may also be gated by minimum and maximum temperature limits. NiMH or NiCd fast charge termination parameters are pin-selectable.
  • Complete NiMH/NiCd charger for 1 to 16 cells
  • No microcontroller or firmware required
  • 550kHz Synchronous PWM current source controller
  • No audible noise with ceramic capacitors
  • PowerPath™ control support
  • Wide input voltage range (4.5 to 34V)
  • Programmable charge current (5% accuracy)
  • Automatic trickle precharge
  • -ΔV Fast charge termination
  • Automatic NiMH top-off charge
  • Programmable timer
  • Automatic recharge
  • Multiple status outputs
  • Micro power shutdown


Power Management, Portable Devices, Consumer Electronics

Product Information

NiCd, NiMH
MSL 1 - Unlimited
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