Overview
The NCP3065MNTXG, produced by onsemi, is a monolithic switching regulator designed to deliver constant current for powering high brightness LEDs. This device is optimized for LED driver applications and offers a flexible architecture that allows for step-up, step-down, and inverting topologies with a minimal number of external components.
It features a wide input voltage range from 3.0 V to 40 V, making it suitable for various power sources, including 12 Vac or 12 Vdc supplies and unregulated supplies like Lead Acid batteries. The NCP3065MNTXG also includes an integrated 1.5 A switch and supports higher LED currents with the addition of an external transistor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.0 to 40 | V |
| Switch Current | 1.5 | A |
| Feedback Voltage | 235 mV (nominal) | mV |
| Oscillator Frequency | 110 to 190 kHz | kHz |
| Collector to Emitter Voltage Drop | 1.0 to 1.3 V | V |
| Thermal Shutdown Threshold | 160 °C | °C |
| Maximum Junction Temperature | 150 °C | °C |
| Package Type | DFN-8 (Pb-Free) |
Key Features
- Integrated 1.5 A Switch
- Low Feedback Voltage of 235 mV
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- Frequency of Operation Adjustable 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 (NCV3065)
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 input voltage range of the NCP3065MNTXG?
The input voltage range is from 3.0 V to 40 V.
- What is the maximum switch current of the NCP3065MNTXG?
The maximum switch current is 1.5 A.
- What is the feedback voltage of the NCP3065MNTXG?
The feedback voltage is 235 mV (nominal).
- Can the NCP3065MNTXG be used in automotive applications?
- What is the thermal shutdown threshold of the NCP3065MNTXG?
The thermal shutdown threshold is 160 °C.
- Does the NCP3065MNTXG support PWM dimming?
- What is the maximum junction temperature of the NCP3065MNTXG?
The maximum junction temperature is 150 °C.
- Can the NCP3065MNTXG operate without output capacitance?
- What is the oscillator frequency range of the NCP3065MNTXG?
The oscillator frequency range is from 110 kHz to 190 kHz.
- Does the NCP3065MNTXG have cycle-by-cycle current limit protection?
