Overview
The NCP3065DR2G is a monolithic switching regulator designed by onsemi, optimized for driving high brightness LEDs. This device is part of the NCP3065 series, which includes both the NCP3065 and NCV3065 versions, with the NCV prefix indicating automotive and other applications requiring site and change control. The NCP3065DR2G is capable of delivering constant current and can be configured in various topologies such as step-up (boost), step-down (buck), and inverting configurations with a minimal number of external components.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.0 to 40 | V |
| Output Switch Current | 1.5 | A |
| Feedback Voltage | 235 mV (nominal) | mV |
| Oscillator Frequency | 110 to 190 kHz | kHz |
| Thermal Shutdown Threshold | 160 °C | °C |
| Maximum Junction Temperature | 150 °C | °C |
| Package Type | SOIC-8, DFN-8 | - |
Key Features
- Integrated 1.5 A Darlington switch
- Low feedback voltage of 235 mV for regulating the average current of the LED string
- Cycle-by-cycle current limit for protection
- No control loop compensation required for converter stability
- Adjustable oscillator frequency up to 250 kHz
- Operation with all ceramic output capacitors or no output capacitance
- Analog and digital PWM dimming capability
- Internal thermal shutdown with hysteresis
- Automotive version available (NCV prefix)
Applications
- Automotive and marine lighting
- High power LED drivers
- Constant current source
- Low voltage LED lighting (landscape, path, solar, MR16 replacement)
Q & A
- What is the input voltage range of the NCP3065DR2G?
The input voltage range is from 3.0 V to 40 V.
- What is the maximum output switch current of the NCP3065DR2G?
The maximum output switch current is 1.5 A.
- What is the feedback voltage of the NCP3065DR2G?
The feedback voltage is 235 mV (nominal).
- What is the oscillator frequency range of the NCP3065DR2G?
The oscillator frequency range is from 110 kHz to 190 kHz.
- Does the NCP3065DR2G require control loop compensation?
No, it does not require control loop compensation for converter stability.
- What are the package types available for the NCP3065DR2G?
The package types available are SOIC-8 and DFN-8.
- What is the thermal shutdown threshold of the NCP3065DR2G?
The thermal shutdown threshold is 160 °C.
- Does the NCP3065DR2G support PWM dimming?
- What are some common applications of the NCP3065DR2G?
Common applications include automotive and marine lighting, high power LED drivers, constant current sources, and low voltage LED lighting.
- Is the NCP3065DR2G suitable for automotive applications?
