GENERAL DEscriptION

The SGM40653/4/5 are over-voltage protection devices designed to protect low voltage systems from damage with a high voltage supply up to +28VDC. The SGM40653/4/5 can withstand surges up to +120V without damage.

The integrated 62mΩ (TYP, CSP package)/73mΩ (TYP, TDFN package) RON FET allow it to pass through 4.5A continuous current. The FET is turned off when the input voltage exceeds the over-voltage threshold which can be adjusted between 4V and 20V with optional external resistors.

If the OVLO input is set below the external OVLO select threshold, the SGM40653/4/5 automatically choose the internal trip thresholds that are preset to 15.39V/6.8V/5.81V (SGM40653/4/5) typically.

The open-drain ACOK output indicates a stable power supply between minimum supply voltage and VOVLO. The SGM40653/4/5 also have enable control to reduce power consumption.

The SGM40653/4/5 are available in Green TDFN-3×3-12L and WLCSP-1.30×1.83-12B packages, and operate over an ambient temperature range of -40℃ to +85℃.

FEATURES

• Wide Power Supply Voltage Range: 2.5V to 28V

• Integrated Switch On-Resistance:

  62mΩ (TYP) (CSP Package)

  73mΩ (TYP) (TDFN Package)

• Internal Over-Voltage Protection Thresholds: 5.81V

• Wide Adjustable OVLO Threshold Range: 4V to 20V

• Surge Immunity up to +120V

• Debounce Time: 18.5ms

• Soft-Start Function

• Enable Function

• Thermal Shutdown Protection

• -40℃ to +85℃ Operating Temperature Range

• Available in Green WLCSP-1.30×1.83-12B and TDFN-3×3-12L Packages

APPLICATIONS

Portable Internet Devices and Accessory

Mobile Phones

Tablet Computers