NCL30386A1DR2G

The NCL30386A1DR2G is an LED driver that belongs to the PMIC (Power Management Integrated Circuit) family. The NCL30386A1DR2G has been designed to provide controlled and regulated current to drive up to 16 LEDs. It is a dual-output multichannel driver, which is controllable either directly with a digital command interface or by analog inputs. The major application for this integrated circuit is in the control of lighting devices in multiple applications like automotive, industrial, and commercial applications. Additionally, the NCL30386A1DR2G is available in a tiny four-lead Thin SIP package, which saves onboard space on the PCB.

The NCL30386A1DR2G provides step-dimming/lighting capability. This feature is used in applications where constant current must be regulated for different lighting levels for special tones. It includes an internal power-on reset circuit which ensures a reset when the input voltage is applied. It provides programmable open-LED detect capability with an overload shut-down function. The device also has a protective shutdown mode which protects the LEDs against eventual overloads or faults in the control architecture. It also has an internal overvoltage protection circuit, which shuts down the device if the voltage values exceed an acceptable level. The ESD protection feature ensures that the device is protected against Electrostatic Discharge.

The NCL30386A1DR2G has an adjustable output current up to 500mA. LED current matching can be programmed through the input pins, or different I2C commands. The device has a very tiny standby current of just 2μA. The wide input voltage range of the circuit allows it to be used from 4.0V up to 28V. The dual output capability of the device allows for great flexibility in design as two different currents can be controlled individually. The device also has three different Kill Modes which allow for either fully-off, or dimmed mode.

The working principle of the NCL30386A1DR2G is simple. The current regulation feature is implemented with two control settings: the current sense control setting, and the current-sense limit setting. The current-sense limit is adjustable using a single pin, while the current-sense control settings are programmed either through the I2C command interface or through external pins. A circuit is provided to compare the output current with the programmed current-sense limit. When the output current exceeds the programmed current-sense limit, the open-LED detect circuit trips and shuts down the device. This safety feature protects the device from any possible overcurrent conditions.

The NCL30386A1DR2G is an exceptional integrated circuit for controlling multiple LEDs. The device offers adjustable output current up to 500mA, a very low standby current, wide input voltage range, programmable open-LED detect, current-sense control and limit settings, and much more. These features make it an ideal choice for multiple applications, including automotive, industrial and commercial applications.