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Evaluation Kit, 34675 Single-cell Li-Ion Battery Charger, No External MOSFET Required

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KIT34675EPEVBE   Datasheet
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Product Overview

The KIT34675EPEVBE is an evaluation module for 34675, a high input voltage Li-Ion battery charger with a 4.85V/10mA linear regulator. The high input voltage, up to 28V, eliminates the input over voltage protection circuit required in handheld devices such as cell phones, Bluetooth accessories, and portable media players. The 4.85V linear regulator is capable of 10mA output current, and can be used to directly power a sub system such as USB transceivers. The charge cycle of the 34675 includes trickle , constant-current, and constant voltage charge modes. The constant current mode current is programmable up to 1A with an external resistor. The constant voltage is fixed at 4.2V with 0.7% accuracy over a -40°C to 85°C temperature range. The trickle-mode current is preset to 20% of the CC-mode current, when the battery voltage is lower than the trickle-mode threshold. The end of charge current threshold is preset to 10% of the constant current mode current to save the board space and cost.
  • No external MOSFET, reverse blocking diode or current sense resistor is required
  • Guaranteed maximum 1A programmable constant current mode current
  • ±0.7% voltage accuracy and ±5% current accuracy over the -40°C to 85°C range
  • 4.85V/10mA linear regulator with 6.8V input over voltage protection threshold
  • 28V maximum voltage for the power input with 6.8V over voltage protection threshold
  • Trickle charge for fully discharged batteries


Consumer Electronics, Portable Devices


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

Product Information

Power Management - Battery
Battery Charger
Evaluation Board MC34675, User Guide, Schematic, Software
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