Halo Microelectronics announced the launch of its HL7009A, a high-efficient 3.6A switching charger IC ideal for smartphones, tablet computing, and mobile IoT devices. The HL7009A is a fully integrated, all-in-one switch-mode Li-Ion battery charger IC that can charge a single cell with a maximum current of 3.6A. It simplifies charging by removing power path management, making it a cost-effective and compact solution.

Additionally, it improves charging efficiency and reduces size and cost by using a specialized method for precise charge current control and optimizing internal power switches for greater efficiency across different input voltages, resulting in faster charging times. It supports a wide range of input sources, including the standard USB host port, USB charging port, and the AC-DC adapter. It's compatible with input operating voltages ranging from 4.0V to 9.5V, enabling it to energize the system rail even in the absence of a battery.

Additionally, it is equipped to facilitate BC1.2 detection, ensuring the application of an appropriate input current limit for optimal utilization of the power supplied by the input source. The HL7009A independently handles Li-ion battery charging when linked to an I2C host. It oversees battery voltage, executes charging in three stages: pre-charge, constant current, and constant voltage, and stops when fully charged.

If the battery voltage drops too low, it restarts charging. The I2C interface enables customizable charging settings and system-level communication. Without an I2C host, a built-in timer ensures safe charging cessation.

It also supports the OTG function, allowing for configurable output voltage at VBUS, with a maximum output current reaching up to 1.2A.