Overview
The NCL30160DR2G is an NFET hysteretic step-down, constant-current driver designed for high power LEDs. It is ideal for industrial and general lighting applications, requiring minimal external components. The device operates with an input voltage range from 6.3 V to 40 V and features hysteretic control, which provides good power supply rejection and fast response during load transients and PWM dimming. It supports a wide range of pulsed dimming through a dedicated PWM input (DIM/EN) and operates at a high switching frequency up to 1.4 MHz, allowing the use of smaller external components to minimize space and cost.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VIN Input Supply Voltage Range | 6.3 | - | 40 | V |
| IQ_IN Quiescent Current into VIN | - | 1.5 | - | mA |
| VCC Internal Regulator Output | - | 5.0 | - | V |
| VUV+ Under-Voltage Lock-out Threshold (VIN Rising) | 5.5 | 6.0 | 6.5 | V |
| VUV- Under-Voltage Lock-out Threshold (VIN Falling) | 5.2 | 5.6 | 6.3 | V |
| Maximum LED Drive Current | - | - | 1.5 | A |
| Switching Frequency Range | - | - | 1400 | kHz |
| Maximum Duty Cycle | - | - | 100 | % |
| Thermal Shutdown | - | - | 165 | °C |
| Package Type | - | - | SOIC-8 | - |
Key Features
- Integrated 1 A / 50 mΩ MOSFET
- Input voltage range from 6.3 V to 40 V
- Up to 1.4 MHz operation
- Short LED shutdown protection and thermal shutdown protection
- No control loop compensation required
- Externally adjustable LED current
- Dedicated EN/DIM pin for PWM dimming control
- Supports all-ceramic or capacitor-less output
- Capable of 100% duty cycle operation
- Pb-free device
Applications
- Constant Current LED Driver
- General Illumination
- Industrial Lighting
- MR-16 and other high-power LED lighting applications
Q & A
- What is the input voltage range of the NCL30160DR2G?
The input voltage range is from 6.3 V to 40 V.
- What is the maximum switching frequency of the NCL30160DR2G?
The maximum switching frequency is up to 1.4 MHz.
- Does the NCL30160DR2G require control loop compensation?
No, the NCL30160DR2G does not require control loop compensation.
- How is the LED current adjusted in the NCL30160DR2G?
The LED current is externally adjustable using a resistor connected to the CS pin.
- What protection features does the NCL30160DR2G have?
The device includes short LED shutdown protection, thermal shutdown protection, under-voltage lock-out, and over-current protection.
- What is the maximum duty cycle of the NCL30160DR2G?
The maximum duty cycle is 100%.
- What package type is the NCL30160DR2G available in?
The device is available in a SOIC-8 package.
- Is the NCL30160DR2G a Pb-free device?
- What is the thermal shutdown temperature of the NCL30160DR2G?
The thermal shutdown temperature is 165°C.
- How is PWM dimming controlled in the NCL30160DR2G?
PWM dimming is controlled through the dedicated DIM/EN pin.
