Overview
The NCV360SNT1G, produced by onsemi, is a USB Positive Overvoltage Protection Controller designed to protect systems from positive overvoltage conditions. This device integrates an internal PMOS FET, eliminating the need for external components and reducing system cost and PCB area. It features fast protection up to 20 V, undervoltage and overvoltage lockout, and a fault indication flag output. The NCV360SNT1G is particularly suited for applications requiring robust voltage protection, such as USB devices, mobile phones, and personal digital applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | Vin | 1.2 | - | 20 | V |
| Undervoltage Lockout Threshold | UVLO | 2.85 | 3.0 | 3.15 | V |
| Overvoltage Lockout Threshold | OVLO | 5.43 | 6.0 | 6.75 | V |
| Maximum Current from Vin to Vout (PMOS) | Imax | - | - | 600 | mA |
| Thermal Resistance, Junction-to-Air | RJA | - | - | 305 | °C/W |
| Operating Ambient Temperature Range | TA | -40 | - | 85 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
| Junction Operating Temperature | TJ | - | - | 150 | °C |
| ESD Withstand Voltage (IEC 61000-4-2) | Vesd | - | - | 15 (Air), 8 (Contact) | kV |
Key Features
- Internal PMOS FET: Protects the system from positive overvoltage without the need for external devices.
- Overvoltage and Undervoltage Lockout (OVLO/UVLO): Ensures the system is protected from both overvoltage and undervoltage conditions.
- FLAG Output: Provides a fault indication signal when the input voltage exceeds the OVLO threshold or falls below the UVLO threshold.
- Enable Pin (EN): Allows the device to be enabled or disabled by connecting the EN pin to GND or a high level.
- Thermal Shutdown: Protects the device from overheating by shutting down when the junction temperature exceeds 150°C.
- ESD Protection: Compliant with IEC61000-4-2, providing ±15 kV (Air) and ±8 kV (Contact) ESD protection.
- Low Quiescent Current: Consumes only 24-35 µA of supply quiescent current.
Applications
- USB Devices
- Mobile Phones
- Peripheral Devices
- Personal Digital Applications
- MP3 Players
Q & A
- What is the primary function of the NCV360SNT1G? The primary function is to provide positive overvoltage protection for USB and other similar applications.
- What is the maximum input voltage the NCV360SNT1G can handle? The device can handle input voltages up to 20 V.
- What are the undervoltage and overvoltage lockout thresholds? The undervoltage lockout threshold is typically 3.0 V, and the overvoltage lockout threshold is typically 6.0 V.
- How does the FLAG output work? The FLAG output goes low when the input voltage exceeds the OVLO threshold or falls below the UVLO threshold, indicating a fault condition.
- What is the purpose of the EN pin? The EN pin allows the device to be enabled or disabled by connecting it to GND or a high level.
- What is the thermal shutdown temperature of the NCV360SNT1G? The device shuts down when the junction temperature exceeds 150°C.
- Is the NCV360SNT1G ESD protected? Yes, it is compliant with IEC61000-4-2, providing ±15 kV (Air) and ±8 kV (Contact) ESD protection.
- What is the typical supply quiescent current of the NCV360SNT1G? The supply quiescent current is typically 24-35 µA.
- In what package types is the NCV360SNT1G available? It is available in both UDFN6 and TSOP-5 packages.
- Is the NCV360SNT1G suitable for automotive applications? Yes, the NCV prefix indicates that it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
