Battery Charger for 2 Cells of Li-Ion, NiCd, NiMH battery, 10V input, 8.484V/2 A charge, SSOP-24

LTC1980EGN#PBF - Battery Charger for 2 Cells of Li-Ion, NiCd, NiMH battery, 10V input, 8.484V/2 A charge, SSOP-24

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Product Overview

The LTC1980EGN#PBF is a Battery Charger and DC/DC Converter converts the battery voltage to a regulated output or simultaneously charging the battery while powering a system load from an unregulated AC wall adapter. Combining these features into a single IC produces a smaller area and lower cost solution compared to presently available multi-IC solutions. The LTC1980 shares the discrete components for both the battery charger and the DC/DC converter thus minimizing size and cost relative to dual controller solutions. Both the battery charger and DC/DC converter use a current mode fly back topology for high efficiency and excellent transient response. Optional Burst Mode operation and power-down mode allow power density, efficiency and output ripple to be tailored to the application. It provides a complete Li-ion battery charger with charge termination timer, preset Li-ion battery voltages, overvoltage and under voltage protection and user programmable constant-current charging.
  • Single controller IC includes battery charger plus DC/DC converter
  • Wall adapter voltage may be above or below battery voltage
  • LDO controller allows simultaneous charging and regulating from wall adapter input
  • Simple NiMH and NiCd battery charger
  • High efficiency current mode 300kHz PWM
  • Reduced component architecture
  • Undervoltage protection and soft-start ensures start-up with current limited wall adapter


Power Management, Computers & Computer Peripherals, Portable Devices, Consumer Electronics

Product Information

Li-Ion, NiCd, NiMH
MSL 1 - Unlimited
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