Overview
The NCV47700DAJR2G is an integrated low dropout regulator (LDO) designed by onsemi for use in harsh automotive environments. This device is capable of delivering a regulated output voltage with a maximum current of 350 mA. It features adjustable voltage and current limit settings, making it versatile for various applications. The regulator includes multiple protection features such as overcurrent, overtemperature, and reverse input voltage protection, ensuring reliable operation under diverse conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (Vin) | 5.5 | 40 | V | |
| Output Current Limit (ILIM) | 10 | 350 | mA | |
| Junction Temperature (TJ) | -40 | 150 | °C | |
| Nominal Output Voltage (Vout_nom) | 5.0 | 20 | V | |
| Output Voltage Accuracy | ±6% | % | ||
| Dropout Voltage (VDO) | 500 | mV | ||
| Quiescent Current (Iq) | 150 | 230 | µA | |
| Enable Input Threshold Voltage (Vth(EN)) | 0.8 | 3.5 | V |
Key Features
- Adjustable Voltage Version: Output voltage can be adjusted from 5 V to 20 V with ±6% accuracy.
- Adjustable Current Limit: Current limit can be set between 10 mA and 350 mA with 10% accuracy.
- Protection Features: Includes overcurrent protection, thermal shutdown, and reverse input voltage protection.
- Enable Input: 5 V logic compatible enable input for controlling the state of the output voltage.
- Integrated Current Sense: Provides diagnosis and system protection functionality through the CSO pin.
- High Peak Input Voltage Tolerance: Can handle input voltages up to 45 V.
Applications
- Audio and Infotainment Systems: Suitable for use in automotive audio and infotainment systems.
- Instrument Cluster: Can be used in instrument clusters for reliable voltage regulation.
- Navigation and Satellite Radio: Applicable in navigation and satellite radio systems within vehicles.
Q & A
- What is the maximum output current of the NCV47700DAJR2G?
The maximum output current is 350 mA.
- What is the adjustable voltage range of the NCV47700DAJR2G?
The output voltage can be adjusted from 5 V to 20 V.
- What protection features does the NCV47700DAJR2G include?
The device includes overcurrent protection, thermal shutdown, and reverse input voltage protection.
- How is the current limit set on the NCV47700DAJR2G?
The current limit can be set between 10 mA and 350 mA using an external resistor connected to the CSO pin.
- What is the junction temperature range for the NCV47700DAJR2G?
The junction temperature range is from -40°C to 150°C.
- What is the dropout voltage of the NCV47700DAJR2G?
The dropout voltage is up to 500 mV.
- How does the enable input work on the NCV47700DAJR2G?
The enable input is 5 V logic compatible and can be used to control the state of the output voltage.
- What is the purpose of the CSO pin on the NCV47700DAJR2G?
The CSO pin provides information about the output current and is used for setting the current limit and for diagnosis and system protection.
- What are the typical applications of the NCV47700DAJR2G?
Typical applications include audio and infotainment systems, instrument clusters, navigation, and satellite radio systems in automotive environments.
- How should the thermal considerations be managed for the NCV47700DAJR2G?
Thermal relief can be provided through good thermal conductivity via the PCB, and the maximum power dissipation depends on the board design, layout, and ambient temperature.
