GENERAL DESCRIPTION

The SGM2537A family is a compact electronic fuse

(eFuse) with circuit protection functions, which can be

used as a solution to power management. The FET

hot-swap device is also highly integrated in a small

package. With very few external components, the

SGM2537A can provide multiple protection modes. To

encounter overloads, voltage surges, short-circuits and

high inrush current, the device is suitable as a robust

defense.

A single external resistor can be used to set the output

current limit, and after detecting the voltage drop

across the resistor, it is possible to monitor the load

current accurately. Also, a single external capacitor is

enough to set the output slew rate for applications with

particular inrush current requirements. Using internal

clamping circuits alone can quickly limit over-voltage

events to a fixed maximum value within a safe range.

The SGM2537A-PRN variant provides an option to set

a user-defined over-voltage cutoff threshold.

The SGM2537A is available in a Green TDFN-2×2-8AL

package

FEATURES

● Input Voltage: 2.7V to 18V, Surge up to 20V

● Low On-Resistance: 35mΩ (TYP)

● Output Clamp Response Time: 5μs (TYP)

● Programmable Current Limit: 0.5A to 4A

● ±7.5% Current Limit Accuracy

● Load Current Monitor Output

● Quick Output Discharge (SGM2537A-xRD)

● Programmable Soft-Start Time (SS)

● Over-Temperature Protection (OTP)

● Fault Flag (nFAULT Pin)

● Available in a Green TDFN-2×2-8AL Package

APPLICATIONS

Hot-Swap and Hot-Plug

Adapter Power Devices

SSD and HDD Drives

Set-Top Boxes

Printers

White Goods

Digital TVs