34673 - High Input Voltage 1.2A Charger

Datasheet Summary

Description

of each pin can be found in the Functional Pin Description section beginning on page 11.

The supply input.

Features

No external MOSFET, reverse-blocking diode or current-sense resistor are required.
Guaranteed maximum 1.2A programmable CC-mode current.
±0.7% voltage accuracy over -20°C to 70°C.
±6% current accuracy over -40°C to 85°C.
28V maximum voltage for the power input with 6.8V over-voltage protection threshold.
2.6V minimum input operating voltage.
Trickle charge for fully discharged batteries.
Charge current monitor.
Cha.

NXP

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Datasheet Details

Part number	34673
Manufacturer	NXP
File Size	844.86 KB
Description	High Input Voltage 1.2A Charger
Datasheet	34673 Datasheet
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Freescale Semiconductor Advance Information Document Number: MC34673 Rev. 1.0, 01/2008 High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries 34673 The MC34673 is a cost-effective fully-integrated battery charger for Li-Ion or Li-Polymer batteries. The high input voltage, up to 28V, eliminates the input over-voltage protection circuit required in handheld devices such as PDAs, cell phones, portable video game players and digital still cameras. A typical charge cycle includes trickle, constant-current (CC) and constant-voltage (CV) charge modes. The CC-mode current is programmable up to 1.2A with an external resistor. The voltage across the external resistor is also used to monitor the actual charge current. The constant voltage is fixed at 4.2V with 0.

Published: Jul 13, 2020 |