SGM40642
5V eFuse with Precision Adjustable Current Limit and Over-Voltage Clamp
Power Distribution Switches
The SGM40642 is a smart low voltage load switch with a full suite of protective features that can protect the source, device, and the load against a variety of fault conditions. This eFuse device is suitable for 2.5V to 5V loads and provides accurate and adjustable current limiting (700mA to 2.9A) and over-voltage clamping (5.4V TYP). It can deliver 2.5A continuous current to the load and its input tolerates up to 20V over-voltage. In over-voltage conditions, the internal switch is turned off to keep the load disconnected with the SGM40642.
If the source voltage is higher than 5.4V but lower than 7.6V, the output will be clamped to 5.4V to protect the load. If the VIN voltage exceeds 7.6V, the load will be disconnected to prevent damage.
The SGM40642 has an internal 54mΩ (TYP) power switch with current limit capability. This limit is programmable with a single external resistor (RILIM). A persistent overload condition usually results in thermal shutdown and may cause cyclic ON and OFF periods to protect the device.
The SGM40642 is available in a Green TDFN-2×2-6AL package and can operate over the -40℃ to +125℃ ambient temperature range.
2.5V to 6.5V Operation
54mΩ (TYP) Internal Switch (High-side MOSFET)
Up to 2.5A Continuous Load Current
Up to 20V Input Over-Voltage Tolerance
Output Shutoff at 7.6V (TYP) Input Over-Voltage
100ns Over-Voltage Lockout (OVLO) Response
3.5μs Short-Circuit Response
Reverse Current Blocking while Disabled
Built-In Soft-Start
Pin-to-Pin Compatible with SGM2553
-40℃ to +125℃ Operating Temperature Range
Available in a Green TDFN-2×2-6AL Package
USB Power Switches
USB Slave Devices
Smart Phones/Cell Phones
3G, 4G Wireless Data-Cards
Solid State Drives (SSD)
3V or 5V Adapter Powered Devices
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM40642XTDI6G/TR | Not Recommended for New Designs | TDFN-2×2-6AL | 6 | Yes | Yes | Yes | Yes | MSL1 | -40℃ to +125℃ | View | View | 1-24 units : $1.4/unit 25-99 units : $1.2/unit 100-249 units : $1/unit 250-499 units : $0.8/unit 500-999 units : $0.7/unit 1000-9999 units : $0.52/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
