MAX4925
Overvoltage Protectors with External pFET
Provides Overvoltage Protection for up to +28V
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Overview
Features and Benefits
- Overvoltage Protection Up to +28V
- Preset 7.18V, 6.16V, 5.65V, and 4.46V Typical Overvoltage Trip Levels
- Preset 2.44V Typical Undervoltage Trip Level
- ±2.5% Accurate Overvoltage/Undervoltage Trip Levels
- Low 13µA (typ) Supply Current
- Drives External pFET
- 20ms Adapter Debounce Time
- Fault Flag Indicator
- 6-Pin (1.5mm x 1.0mm) µDFN Package
Product Details
The MAX4923–MAX4926 overvoltage protection (OVP) controllers protect low-voltage systems against high-voltage faults of up to +28V with an appropriate external pFET. When the input voltage exceeds the overvoltage lockout (OVLO) threshold, or falls below the undervoltage lockout (UVLO) threshold, these devices turn off the pFET to prevent damage to protected components and issue a flag to notify the processor of a fault condition.
The typical overvoltage trip level is set to 7.18V (MAX4923), 6.16V (MAX4924), 5.65V (MAX4925), and 4.46V (MAX4926). The undervoltage trip level is set to 2.44V (typ) for all devices.
The input (IN) is ESD protected to ±15kV HBM when bypassed to ground with a 1µF ceramic capacitor. All devices are offered in a small, 6-pin (1.5mm x 1.0mm) µDFN package and are specified over the extended -40°C to +85°C temperature range.
Applications
- Cell Phones
- Digital Still Cameras
- MP3 Players
- PDAs and Palmtop Devices
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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MAX4925 Reliability Data1/12/2023
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX4925ELT+ | Material Declaration | Reliability Data | 6-LFCSP-1.5X1X0.75 | |
| MAX4925ELT+T | Material Declaration | Reliability Data | 6-LFCSP-1.5X1X0.75 | |
| Wafer Fabrication Data | MAX4925 Reliability Data |
Support & Discussions
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Lead Times
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