Overview
The NIS5135MN2TXG is a +5 Volt Electronic Fuse produced by onsemi, designed to enhance the reliability of various electronic circuits by protecting them from catastrophic and shutdown failures. This cost-effective, resettable fuse integrates multiple protection features, including overvoltage clamping, undervoltage lockout, and thermal shutdown. It is particularly suited for applications requiring robust and reliable power management.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage, Operating | VIN | -0.6 | - | 18 | V |
| Input Voltage, Transient (100 ms) | VIN | -0.6 | - | 25 | V |
| Thermal Resistance, Junction-to-Air (0.1 in^2 copper) | �JA | 227 | - | - | °C/W |
| Thermal Resistance, Junction-to-Lead (Pin 1) | �JL | 27 | - | - | °C/W |
| Thermal Resistance, Junction-to-Case | �JC | 20 | - | - | °C/W |
| Total Power Dissipation @ TA = 25°C | Pmax | 1.3 | - | 10.4 | W |
| Operating Temperature Range | TJ | -40 | - | 150 | °C |
| Nonoperating Temperature Range | TJ | -55 | - | 155 | °C |
| Lead Temperature, Soldering (10 Sec) | TL | - | - | 260 | °C |
| Continuous Current (TA = 25°C, 0.5 in^2 pad) | ID | - | 3.6 | - | A |
| Thermal Shutdown Temperature | TSD | 150 | 175 | 200 | °C |
| Thermal Hysteresis | THyst | - | 45 | - | °C |
| Undervoltage Lockout (Turn on, Voltage Going High) | VUVLO | 3.2 | 3.6 | 4.0 | V |
| UVLO Hysteresis | VHyst | - | 0.40 | - | V |
| Kelvin Short Circuit Current Limit (RLimit = 11 �) | ILIM | 2.3 | 3.1 | 3.9 | A |
| Output Voltage Ramp Time (Enable to VOUT = 4.7 V) | tslew | 0.70 | 1.4 | 2.4 | ms |
Key Features
- Integrated Power Device with Thermal Protection
- No External Current Shunt Required
- Internal Charge Pump for Gate Voltage and Current Limit Circuit
- Internal Undervoltage Lockout Circuit
- Internal Overvoltage Clamp Circuit
- ESD Ratings: Human Body Model (HBM) 2000 V, Machine Model (MM) 200 V
- Pb-Free and RoHS Compliant
- dv/dt Circuit for Controlled Output Voltage Ramp
- Thermal Shutdown with Auto-Retry Option
Applications
- Motherboards
- Hard Drives
- Fan Drives
Q & A
- What is the primary function of the NIS5135MN2TXG? The NIS5135MN2TXG is a resettable electronic fuse designed to protect electronic circuits from excessive input voltage and thermal failures.
- What are the thermal options available for the NIS5135MN2TXG? The device is available in both latching and auto-retry thermal shutdown options.
- How does the undervoltage lockout circuit work? The undervoltage lockout circuit uses a comparator with hysteresis to monitor the input voltage and switches the output to a high impedance state if the voltage drops below the specified level.
- What is the purpose of the dv/dt circuit? The dv/dt circuit controls the slew rate of the output voltage at turn-on, ensuring a linear and controlled ramp-up.
- Can the output voltage ramp time be adjusted? Yes, the output voltage ramp time can be adjusted by adding an external capacitor to the dv/dt pin.
- What is the maximum continuous current rating for the NIS5135MN2TXG at 25°C? The maximum continuous current rating is 3.6 A at 25°C with a 0.5 in^2 pad.
- How does the thermal shutdown feature work? The device shuts down if the die temperature reaches 175°C and can be reset either by recycling the input power or toggling the enable pin for auto-retry devices.
- Is the NIS5135MN2TXG Pb-Free and RoHS compliant? Yes, the device is Pb-Free and RoHS compliant.
- What are the typical applications for the NIS5135MN2TXG? Typical applications include motherboards, hard drives, and fan drives.
- How does the current limit circuit function? The current limit circuit uses a SENSEFET and a reference amplifier to control the peak current, reducing the conductivity of the FET to maintain a constant current at the set limit level.
