Dual-phase 30 W charge pump with 1:2 reverse boost mode

Dual-phase 30 W charge pump with 1:2 reverse boost mode

New Products |
By Jean-Pierre Joosting

Halo Microelectronics has launched its HL7132D, a dual-phase 30 W charge pump with 1:2 reverse boost mode.

The HL7132D is a low-voltage fast direct charger for 1-cell Li-ion and Li-polymer batteries. The device integrates a dual-phase switched capacitive converter and reverse blocking MOSFET (QRB FET) while achieving over 97 percent efficiency at 4.5 V output, and 4 A current, with one 22µF flying capacitor per phase at FSW of 1.1 MHz.

The HL7132D features two different switching modes — a 2:1 charge pump mode that allows the output voltage (VOUT) to be around half of the input voltage (VIN), and the output current to be doubled the input current and a 1:2 reverse charge pump mode that allows a voltage at VIN double the VOUT voltage.

Furthermore, the device provides constant current (CC) and constant voltage (CV) regulations through controlling QBR FET for safe charging operation in a 2:1 charge pump mode. The CC regulation is closely monitored through a close loop of the input current sensing or battery current sensing and the CV regulation is controlled through a close loop of the battery voltage sensing. To further enhance safety, the device is equipped with a thermal regulation loop that kicks in if the CC/CV loop results in overheating during the operation in 2:1 charge pump mode.

The HL7132D is available in a 2.95- x 2.6-mm, 42-bump WLCSP, and is ideal for smartphones, tablet computing, and IoT devices.

“The HL7132D is posed to become yet another cutting-edge addition to our extensive family of dual-phase charge-pumps,” said David Nam, CEO of Halo Microelectronics. “Offering both a 2:1 charge pump and a 1:2 reverse charge pump, along with a comprehensive range of safety features, Halo Microelectronics is dedicated to pursuing the boundaries of innovation and revolutionizing the consumer electronics and IoT industry.”


Related articles

InnovationLab acquires flexible printed battery technology
Schaffner choke addresses EMC in residential EV-chargers
Far-field wireless powers battery-free BLE IoT sensor beacon
Nano power DC-DC buck-converter for battery powered devices
Diamond quantum sensors enable high-accuracy EV battery monitoring

If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :    eeNews on Google News


Linked Articles