GLF73510
Ultra-Efficient, IQSmartTM Battery Protection Switch
0.97mm x 0.97mm
0.55mm thick
0.5mm pitch
4 bump
WLCSP
Features
- Off Threshold Voltage to Protect Battery Discharge:
VTH_OFF : VBAT=3.1V
Contact GLF for a different VTH level - Switch is activated only by the VOUT voltage of a charger output
- Ultra-Low IQ: 0.5µA Typ @ VBAT=3.6V
- Ultra-Low ISD:
2nA Typ @ VBAT=1.1V
6nA Typ @ VBAT=3.6V - Low RON :
30mΩ Typ @ VBAT=3.6V
28mΩ Typ @ VBAT=4.2V - IOUT Max: 2A
- Temperature Range: -40 to 85°C
- HBM: 6kV, CDM: 2kV
- Ultra-Small: 0.97mm x 0.97mm
Applications
- Battery protection
- Wearables / IoT Devices
- Mobile Devices
- Mobile Medical
FUNCTIONAL BLOCK SCHEMATIC
APPLICATION SCHEMATIC
The GLF73510 is an IQSmartTM ultra-efficiency, 2A rated switch with the accurate turn-off threshold to prevent a battery from being discharged deeply.
When the voltage of a battery decreases to the off threshold voltage level, the GLF73510 is turned off, consuming an ultra-low leakage current (ISD) to save the battery. The GLF73510 remains in the off state until a higher voltage is applied to VOUT pin. Note that the GLF73510 is enabled only by VOUT voltage with a charger output.
With the higher VOUT voltage from a charger applied, the GLF73510 is fully turned on and monitors VBAT voltage. When the VOUT voltage of a charger is less than the on threshold voltage, a battery can be charged through the body diode of the main switch.
In case that a charged battery is assembled without a higher VOUT applied, the GLF73510 continues to stay at the sleep mode, consuming an ultra-low leakage current (ISD) to save the battery, during shipping or storage.
The GLF73510 is available in 0.97mm x 0.97mm x 0.55mm wafer level chip scale package (WLCSP).
