The GLF73510 IQSmart IC is designed to virtually eliminate wearable and IoT device battery discharge during standby or deep-sleep operation. The GLF73510 consumes an industry-leading ultra-low leakage current (ISD) of 2 nA (typ.), as much as 1,000 times less than other chips commonly used in this application. The bidirectional switch offers a turn-on threshold to prevent a battery from deep discharge and includes an internal pull-down resistor.
Applications for wearable and smaller IoT battery powered devices are expanding rapidly. Market forces continue to demand hardware solutions with more features and longer battery life at a lower cost. Surprisingly, the semiconductor industry has been slow to address the specific requirements of smaller battery-powered devices and consider existing ICs, developed for mobile applications with much higher battery densities, as a good fit.
“Load switches currently used to protect wearables and small IoT device batteries were actually designed for much larger devices, where standby or deep-sleep battery drain was not a serious concern,” stated Eileen Sun, GLF’s President, and CEO. “Because the GLF73510 has been designed from the ground up to address this important problem, it virtually eliminates battery deep discharge during product shipment, storage, and stand-by.”
The GLF73510 is a high-efficiency 2-A-rated, bi-directional switch with a turn-on threshold to prevent a battery from deep discharge. The compact IC is provided in a wafer-level chip scale package (WLCSP) measuring 0.97×0.97×0.55 mm. In addition to small wearable electronics and IoT devices, the GLF73510 battery protection switch can
be used in smart credit cards, thin medical portables, mobiles, and thin battery-powered systems.