ENGLISH
中文 ENGLISH

GLF73611

Ultra-Efficient, Optimized IQSmartTM Battery Protection IC with Full Protections

home Product Battery Protection IC GLF73611
Product Features

  • Overcharge Detection Voltage, VOC

    GLF73611A detects VOUT to release VOC ；GLF73611B detects VBAT to release VOC

  • Overdischarge Detection, VOD

    GLF73611A detects 2.90 VOUT ；GLF73611B detects 2.80 VBAT

  • Overcharge Current Detection, IOC

    330 mA

  • Overdischarge Current Detection, IOD

    215 mA

  • Short Circuit Protection

  • Activated by Applying VON to the VOUT Pin from Charger

  • Shipping Mode Implementation

  • Low RON

    60 mΩ Typ. at 3.6 VBAT

  • Low Quiescent Current, IQ

    1.6 μA Typ at 3.6 VBAT

  • Shutdown Current 1

    ISD = 15 nA Typ. at VBAT < VOD

  • Shutdown Current 2

    ISD = 21 nA Typ. at VBAT = 3.6 V, Shipping Mode

  • Shutdown Current 3

    ISD = 26 nA Typ. at VBAT = 4.2 V, Shipping Mode

  • Latch-off at Overdischarge Detection and Short Circuit Protection.

  • 0 V Battery Charge Inhibition

  • Patented Circuit Architecture

GLF73611
Product manual
Sample application
Product Description

The GLF73611 is a family of IQSmartTM ultra-efficient ICs, with full battery protections which are accurate overcharge and overdischarge voltage protection, overcharge and overdischarge current protection and short circuit protection.


The overcharge and discharge voltage protections are the functions to keep rechargeable battery working within the desired safe operating condition. When the battery is charged above the over voltage detection level, the GLF73611 charging switches off in a preset delay time. As the battery voltage decreases lower than the overdischarge detection voltage, the GLF73611 discharging switch is turned off immediately. In the off state, GLF73611 consumes an ultra-low leakage current (ISD) to save battery power. In addition, when the load current is higher than the ISC short circuit protection current level, the GLF73611 is turned off and will maintain the off state to avoid any serious damage to the system. The short circuit delay time can avoid any false trigger which might turn on the switch.



The GLF76311 provides a shipping mode to prevent the device which has non-removable battery keep discharging during the shipping period. When a charged battery cell is connected to the GLF73611, and GLF73611 remains in the off state, the smart devices consume an ultra-low leakage current (ISD). Note that the only way to activate the GLF73611 is applying a charger output VON voltage to VOUT pin.


The GLF73611 also has the 0 V battery charge inhibition function. The battery is not allowed to charge when the battery voltage is lower than the 0V battery charge inhibition voltage (VBCI).