Overview
The NCV68261MTWAITBG is a high-performance electronic component designed by Onsemi, specifically tailored for automotive and other power management applications. This device functions as an Ideal Diode and High Side Switch NMOS Controller, offering reverse polarity protection and efficient power management. It operates in conjunction with one or two external N-channel MOSFETs, controlling their ON/OFF state based on the Enable pin and the Input-to-Drain differential voltage polarity. This controller is intended to replace traditional power rectifier diodes and mechanical power switches with lower loss and lower forward voltage characteristics.
Key Specifications
| Rating Symbol | Min | Max | Unit |
|---|---|---|---|
| Input and Source Voltage DC | -18 | 45 | V |
| Load Dump - Suppressed Us* | - | 60 | V |
| Gate Voltage VG | -18 | 45 | V |
| Gate-to-Source Voltage VGS | -0.3 | 19 | V |
| Drain Voltage VD | -5 | 45 | V |
| Input and Source-to-Drain Voltage DC VSD | -45 | 45 | V |
| Enable Voltage VEN | -18 | 45 | V |
| Operating Junction Temperature TJ | -40 | 150 | °C |
| Storage Temperature TSTG | -55 | 150 | °C |
Key Features
- Reverse Polarity Protection: Protects against reverse voltage conditions, ensuring device safety.
- Ideal Diode Functionality: Operates as an ideal diode, reducing losses and forward voltage drop compared to traditional diodes.
- High Side Switch Capability: Can be configured as a high side switch, providing additional functionality in power management circuits.
- Wide Input Voltage Range: Accepts input voltages from 4 V to 32 V, making it versatile for various applications.
- Low Quiescent Current: Efficient operation with low quiescent current to conserve battery life.
- Thermal Shutdown Protection: Integrated thermal protection to prevent device damage under high temperature conditions.
- Compact Package: Housed in a small surface-mount WDFNW-6 package, suitable for space-constrained designs.
Applications
The NCV68261MTWAITBG is ideal for various applications, including:
- Automotive Power Supplies: Provides stable voltage to automotive electronic components such as infotainment systems, sensors, and LED lighting.
- LED Lighting: Suitable for driving automotive interior and exterior LED lighting with regulated power.
- Consumer Electronics: Used in consumer electronic devices that require reliable voltage regulation.
- Power Distribution Systems: Effective in power distribution systems requiring reverse polarity protection and efficient power switching.
Q & A
- Q: What is the primary function of the NCV68261MTWAITBG?
A: The NCV68261MTWAITBG functions as an Ideal Diode and High Side Switch NMOS Controller, providing reverse polarity protection and efficient power management.
- Q: What is the input voltage range of the NCV68261MTWAITBG?
A: The device accepts input voltages from 4 V to 32 V.
- Q: How does the NCV68261MTWAITBG protect against reverse polarity?
A: It protects against reverse voltage conditions by controlling the ON/OFF state of external NMOS transistors based on the Input-to-Drain differential voltage polarity.
- Q: What is the significance of the Enable pin in the NCV68261MTWAITBG?
A: The Enable pin allows for the device to be enabled or disabled, controlling the operation of the NMOS transistors.
- Q: What type of package does the NCV68261MTWAITBG come in?
A: It is housed in a small surface-mount WDFNW-6 package.
- Q: Is the NCV68261MTWAITBG suitable for automotive applications?
A: Yes, it is specifically designed for automotive applications, providing stable voltage regulation and reverse polarity protection.
- Q: What are the thermal protection features of the NCV68261MTWAITBG?
A: The device includes integrated thermal shutdown protection to prevent damage under high temperature conditions.
- Q: How does the NCV68261MTWAITBG conserve battery life?
A: It operates with low quiescent current, which helps in conserving battery life.
- Q: Can the NCV68261MTWAITBG be used in consumer electronics?
A: Yes, it is suitable for consumer electronic devices that require reliable voltage regulation.
- Q: What external components are recommended for proper operation of the NCV68261MTWAITBG?
A: A 0.1 μF ceramic capacitor should be placed close to the device, and additional capacitors may be required depending on the application configuration.
