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Halo Microelectronics Introduces a New 900 mA, Single-Input Cell Li-Ion and Li-Pol Battery Charger with an Auto Start

February 21, 2023

CAMPBELL, Calif., February 21, 2023 – Halo Microelectronics (SSE: 688173), a maker of analog and power management integrated circuits enabling energy-efficient smart systems, announced the release of its HL7040C, a highly integrated family of 2x2mm single-cell Li-Ion and Li-Pol linear charger.

The HL7040C is ideal for portable applications, including smartphones, PDAs, MP3 players, and low-powered handheld devices with limited board space, as it operates from either a USB port or an AC adapter. The high-input voltage range with input over-voltage protection also supports low-cost unregulated adapters.

The HL7040C has a single power output that charges the battery, and a system load that can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

As the battery is charged in three phases—pre-charge to recover a fully discharged battery, fast-charge constant current to supply the buck charge safely, and voltage regulation to safely reach full capacity— an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The HL7040C also comes with a full set of safety features, including the JEITA temperature standard, over-voltage protection, DPM-In, safety timers, and ISET short protection. The device is designed for a single-power path from the input to the output to charge a single-cell Li-Ion or Li-Pol battery pack.

In the charger-power stage with the charger-current sense functionally integrated, the charger function has a high-accuracy current, and the voltage regulation loop charge display and charge termination. In addition, the pre-charge current, termination current threshold, and fast-charge current are all programmed via an external resistor.

“The new HL7040C features a 1% charge-voltage accuracy, a 10% charge-current accuracy, and a selectable 100 mA/500 mA input current with key protection. It also includes a programmable hot-fault threshold making the IC one-off from its competition, thus making it ideal for portable applications,” said David Nam, CEO of Halo Microelectronics.

About Halo Microelectronics

Halo Microelectronics develops analog and power management integrated circuits enabling energy-efficient smart systems. Since 2012, Halo Microelectronics has been driving innovation in Mobile, IoT, and Automotive systems. Find out more at https://halomicro.com.

For more information, please contact:

Americas and Europe
Jae Park
Email: jae.park@halomicro.com

Greater China / Asia
Jacky Yan
Email: jacky.yan@halomicro.com