Over Charge Detection Voltage, VOC
GLF73612T detects VOUT to release VOC ; VOC high accuracy: 4.575 V ±1 %
Over Discharge Detection, VOD: 2.9 V
GLF73612T detects VOUT to release VOD
Over Charge Current Detection, IOC : 320 mA
Over Discharge Current Detection, I/sub>OD : 465 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
ISD = 15 nA Typ. at VBAT < VOD ; ISD = 21 nA Typ. at VBAT = 3.6 V, Shipping Mode ; ISD = 26 nA Typ. at VBAT = 4.2 V, Shipping Mode
Latch-off at Over Discharge Detection and Short Circuit Protection.
0 V Battery Charge Inhibition
Patented Circuit Architecture
The GLF73612T is a family of IQSmartTM ultra-efficient ICs, with full battery protections which are accurate over charge/discharge voltage protection, over charge/discharge current protection and short circuit protection.
The over charge and discharge voltage protections are capable of keeping a rechargeable battery working within the desired safe operating condition. When the battery is charged above the over voltage detection level, the GLF73612T charging switches off in a preset delay time. As the battery voltage decreases lower than the over discharge detection voltage, the GLF73612T discharging switch is turned off immediately. In the off state, GLF73612T consumes an ultra-low leakage current (ISD) to save the battery power. In addition, when the load current is higher than the ISC short circuit protection current level, the GLF73612T is turned off and will maintain the off state to avoid any serious damage to system. The short circuit delay time can avoid any false trigger which might turn on the switch.
The GLF73612T provides a shipping mode to prevent smart devices which has a non-removable battery from discharging during the shipping period. When a charged battery cell is connected to the GLF73612T, and GLF73612T remains in the off state, the smart devices consume an ultra-low leakage current (ISD). Note that the only way to active the GLF73612T is applying a charger output V ON voltage to VOUT pin.
The GLF73612T also has 0 V battery charge inhibition function. When the battery voltage is lower than 0 V battery charging inhibited Voltage (VBCI), the battery is not allowed to charge.
