Application Note (3)
Application Note Software (1)
-
Activity Monitor Software[DRM125SW]
Data Sheet (1)
Selector Guide (1)
-
Analog Automotive and Industrial Selector Guide[INDCONTANLPRDFL]
Sign in for a personalized NXP experience.
The MC34673 is a cost-effective fully-integrated battery charger for Li-Ion or Li-Polymer batteries. It tolerates an input voltage up to 28 V, which eliminates the input over-voltage-protection circuit required in handheld devices. A charge cycle includes trickle, constant-current (CC) and constant-voltage (CV) charge modes.
The CC-mode current is programmable up to 1.2 A with an external resistor. The constant voltage is fixed at 4.2 V. The trickle-mode current is pre-set to 20% of the CC-mode current when the battery voltage is lower than the trickle-mode threshold. The end-of-charge (EOC) current threshold is pre-set to 10% of the CC-mode current to save the board space and cost. A charge-current thermal-foldback feature limits the charge current when the IC internal temperature rises to a pre-set threshold.
The MC34673 has a 2.6 V falling power-on-reset (POR) threshold, making it ideal to work with current-limited power supplies. Three indication pins (PPR, CHG and FAST) can be simply interfaced to a microprocessor or LEDs. When no power supply is connected, or when disabled, the charger draws less than 1.0 µA leakage current from the battery.
Note: To see the product features close this window.
| | | | | |
---|---|---|---|---|---|
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
MC34673
Quick reference to our documentation types.
7 documents
Compact List
There are no results for this selection.
Sign in to access authorized secure files. Learn more about secure access rights.
Please wait while your secure files are loading.
7 documents
Compact List
Receive the full breakdown. See the product footprint and more in the eCad file.
4 hardware offerings
Additional hardware available. View our featured partner solutions.
Sign in to access authorized secure files. Learn more about secure access rights.
1 hardware offering
To find additional partner offerings that support this product, visit our Partner Marketplace.
4 hardware offerings
Additional hardware available. View our featured partner solutions.
4 engineering services
There are no results for this selection.
There are no results for this selection.
To find additional partner offerings that support this product, visit our Partner Marketplace.
Help us improve your experience on our site. We invite you to take our five-question survey.