GLF76431
6A Integrated Load Switch with Configurable Power Reset Timer
1.27mm x 1.67mm
0.55mm thick
0.4mm pitch
12 bump
WLCSP
Features
- Ultra-Low ISD: 360nA Typ @ 3.6VBAT
- Ultra-Low IQ: 420nA Typ @ 3.6VBAT
- Low RON : 19mΩ Typ @ 3.6VBAT
- IOUT Max: 6A
- Wide Input Range:
- 1.8V to 5.5V
6Vabs max
- 1.8V to 5.5V
- Power Reset Mode by /SRO Pin Disconnect the downstream system from Battery Source
- Programmable delay and reset duration by one external resistor, REXT
- Reset delay time by /SRO pin
- Turn-off delay time by OFF pin
- Power reset duration time
- Integrated Output Discharge During Reset Period
- Controlled Output Rise Time: 1 ms at 3.6 VBAT
- Operating Temperature Range: - 40 °C to 85 °C
Applications
- Smart Wearables
- IoT Devices
- Medical Devices
PART SCHEMATIC
PRODUCT DESCRIPTION
The GLF76431 is a 6 A load switch with a configurable reset timer for portable devices. The /SRO pin offers a true reset function enabling the load switch to completely disconnect the load from the input battery after a reasonable long delay time. After the reset period, the main switch of the GLF76431 reconnects the output load to the input battery for normal operation. The programmable delay time to the power reset mode by an external resistor on the REXT pin provides designers with system design flexibility.
The OFF input pin allows the GLF76431 to achieve complete shutdown with total downstream standby current of 360 nA typical. With the switch placed between a battery and system, this switch can help to significantly extend system battery life in mobile devices during shipping or periods of extended off time
The GLF76431 helps to reduce power consumption with the best in class RON and a breakthrough on state IQ of only 420 nA typical when the switch is on.
The GLF76431 integrated 1 ms slew rate control can also enhance system reliability by mitigating bus voltage swings during switching events. Where uncontrolled switching can generate high inrush currents that result in voltage droop and/or bus reset events, the GLF76431 slew rate control specifically limits inrush currents during turn-on to minimize voltage droop. The output discharge function makes output voltage off quickly during the reset period.
