L6924UTR Battery Management ICs by STMicroelectronics

USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer

Status: Active
Series: L6924U
RoHS: Compliant
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The L6924U is a fully monolithic battery charger that safely charges single-cell Li-Ion/Polymer battery from either a USB power source or an AC adapter. In USB mode, the L6924U supports both low-power and high-power mode. Alternatively the device can charge from an AC wall adapter. The ideal solution for space-limited portable products integrates the power MOSFET, reverse blocking diode, sense resistor and thermal protection into a compact VFQFPN16 package. When an external voltage regulated adapter or USB port is used, the L6924U works in linear mode, and charges the battery in a constant current constant voltage (CC/CV) profile. Moreover, when a current-limited adapter is used, the device can operate in quasi-pulse mode, dramatically reducing the power dissipation. Regardless of the charging approach, a closed-loop thermal control avoids device overheating. The device has an operating input voltage ranging from 2.5 V to 12 V and it allows the user to program many parameters, such as fast-charge current, end-of-charge current threshold, and charge timer. The L6924U offers two open collector outputs for diagnostic purposes, which can be used to either drive two external LEDs or communicate with a host microcontroller. Finally, the L6924U also provides other features like gas gauge function, checks for battery presence, and monitors and protects the battery from unsafe thermal conditions.

Prices starting from US$0.89


Distributor Starting From Stock
Logo for Chip One Stop Chip One Stop US$0.89
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Logo for Future Electronics Future Electronics US$1.06
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Logo for Avnet America Avnet America US$1.12
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Logo for Newark Electronics Newark Electronics -
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Features

Fully integrated solution, with power MOSFET, reverse blocking diode, sense resistor, and thermal protection
Charges single-cell Li-Ion batteries from selectable AC adapter or USB input
Programmable charge current up to 1 A in AC adapter mode
Programmable charging current in USB mode for both high-power and low-power inputs
4.2 V output voltage with ± 1 % accuracy
Linear or quasi-pulse operating mode
Closed-loop thermal control
Programmable end-of-charge current
Programmable charge timer
(NTC) or (PTC) thermistor interface for battery temperature monitoring and protection
Status outputs to drive LEDs or to interface with a host processor
Small VFQFPN 16-lead package (3 x 3 mm)

Alternative Descriptions

L6924U Series 12 V Li-lon/Li-Polymer Power Switch Battery Charger - VFQFPN-16 | Future Electronics
Battery Charger IC, 1 Cell, Li-Ion, Li-Pol, 12 V, 4.2 V, 1 A, 16 Pins, VFQFPN-EP | Avnet America
VFQFPN 16/I°/USB BATTERY CHARGER SYSTEM | Farnell
Batt Charger, -40 To 125Deg C | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L6924UTR?

Additional datasheets, footprints and schematics for L6924UTR are listed on our Part Details page. You can also find images and similar parts to L6924UTR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L6924UTR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L6924UTR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L6924UTR fall under?

The L6924UTR is listed under Power Management > Battery Management ICs > Battery Chargers.

Can I view similar or alternative parts?

You can view similar parts to L6924UTR when available in the Battery Chargers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the L6924UTR you can contact the distributor directly for product support, shipping queries etc.

Is the L6924UTR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for L6924UTR have stock available?

Authorised distributors including Chip One Stop, Future Electronics, Avnet America, Farnell and Newark Electronics have stock available or on a lead time for L6924UTR.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for L6924UTR often in real-time on the comparison pages.

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