Evaluation Kit for MC34676 Dual, 28V Input Voltage Charger with Linear Regulator

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Product Information

Power Management - Battery
Evaluation Board MC34676, User Guide, Schematic, Software
Battery Charger
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Product Overview

The KIT34676EPEVBE is an evaluation module for 34676, a dual 28V input voltage and fully integrated single cell Li-Ion battery charger, targeting smart handheld applications. One of the inputs is optimized for charging with a USB port, and the second is optimized for an AC/DC adapter power source. The charger has two 28V power devices, that eliminate the need for any external power source selection and input over voltage protection circuitry. Each of the power devices independently controls the charge current from the input, and performs as an independent charger. Only one of the two chargers operate at a time. The AC charger current and the USB charger current are programmable, up to 1.2A and 400mA, respectively. The EOC current of both chargers is the same, and programmable by an external resistor. The 4.85V regulator can be used to power a sub system directly.
  • ±0.7% voltage accuracy over -45 to 85°C
  • ±5% constant current mode current accuracy over -40 to 85°C
  • Dual 28V inputs optimized for USB and AC/DC adapter
  • No external MOSFET, reverse blocking diode, or current sense resistor are required
  • Programmable AC charge current up to 1.2A
  • Programmable USB charge current up to 400mA
  • Programmable EOC current for both AC and USB charger


Consumer Electronics, Portable Devices


Assembled and tested evaluation board/module in anti-static bag, CD-ROM.