Overview
The NCV3065DR2G, produced by onsemi, is a monolithic switching regulator designed to deliver constant current for powering high brightness LEDs (HBLEDs). This device is part of the NCP3065 series, optimized for LED driver applications with a flexible architecture that allows for step-up or step-down topologies using a minimal number of external components. It features a fixed oscillator frequency and does not require dominant pole loop compensation for converter stability, making it suitable for various lighting applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Pin 6) | VCC | 0 | 40 | V | |
| Comparator Inverting Input (Pin 5) | VCII | −0.2 | +VCC | V | |
| Darlington Switch Collector (Pin 1) | VSWC | 0 | 40 | V | |
| Darlington Switch Emitter (Pin 2) (Transistor OFF) | VSWE | −0.6 | +VCC | V | |
| Darlington Switch Collector to Emitter (Pins 1−2) | VSWCE | 0 | 40 | V | |
| Darlington Switch Current | ISW | 1.5 | A | ||
| Oscillator Frequency (VPin 5 = 0 V, CT = 2.2 nF, TJ = 25°C) | fOSC | 110 | 150 | 190 | kHz |
| Thermal Shutdown Threshold | 160 | °C | |||
| Maximum Junction Temperature | TJ(MAX) | 150 | °C | ||
| Operating Junction Temperature Range | TJ | −40 | 125 | °C |
Key Features
- Constant current switching regulator optimized for LED driver applications.
- Flexible architecture allowing for step-up or step-down topologies with minimal external components.
- Frequency of operation adjustable up to 250 kHz.
- No control loop compensation required for converter stability.
- Operation with all ceramic output capacitors or no output capacitance.
- Analog and digital PWM dimming capability.
- Internal thermal shutdown with hysteresis.
- Cycle-by-cycle current limit.
- ESD protection and latch-up protection.
- Automotive version available (NCV prefix).
Applications
- Automotive and marine lighting.
- High power LED driver.
- Constant current source.
- Low voltage LED lighting (landscape, path, solar, MR16 replacement).
Q & A
- What is the primary function of the NCV3065DR2G?
The NCV3065DR2G is a monolithic switching regulator designed to deliver constant current for powering high brightness LEDs.
- What is the maximum input voltage for the NCV3065DR2G?
The maximum input voltage is up to 40 V.
- What is the typical oscillator frequency range of the NCV3065DR2G?
The oscillator frequency range is typically between 110 kHz and 190 kHz.
- Does the NCV3065DR2G require control loop compensation for converter stability?
No, it does not require control loop compensation for converter stability.
- What types of dimming are supported by the NCV3065DR2G?
The device supports both analog and digital PWM dimming.
- What is the maximum current rating of the Darlington switch in the NCV3065DR2G?
The maximum current rating is 1.5 A.
- What is the thermal shutdown threshold of the NCV3065DR2G?
The thermal shutdown threshold is 160°C with a hysteresis of 10°C.
- Is the NCV3065DR2G protected against ESD and latch-up?
- What are some common applications for the NCV3065DR2G?
Common applications include automotive and marine lighting, high power LED drivers, and low voltage LED lighting.
- Is there an automotive version of the NCV3065DR2G available?
