NCL30030B1DR2G Integrated Circuits (ICs)

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Power Management Integrated Circuit (PMIC) LED Drivers are essential components in LED-based lighting and display applications. The NCL30030B1DR2G is a high-efficiency, integrated, bi-directional step-up/step-down LED driver from ON Semiconductor. This PMIC LED driver is suitable for driving up to two strings of LEDs from a wide supply voltage range. The NCL30030B1DR2G offers various features and helps to optimize display and lighting applications with fewer components and greater system performance.

The NCL30030B1DR2G is an ideal solution for driving up to 500mA of continuous LED current from a wide input voltage range of 2.5V to 48V. The user can use a single control connection to dim the LED string either externally or internally through the integrated Pulse Width Modulation (PWM) dimming circuitry. The internal PWM dimmer is capable of dimming up to 99.9% of the output LED current. The NCL30030B1DR2G also features integrated thermal shutdown and over-current protection to ensure long LED life.

The NCL30030B1DR2G device integrates an on-board high-switch frequency DC/DC converter, an analog dimmer, and serial or logic control of a low-side switch. In this way, the solution achieves improved thermal performance, lower system cost, and simpler design and operation. The step-up/step-down functionality is ideal for single cell battery-powered applications and supports a wide range of input voltages. The NCL30030B1DR2G offers a low quiescent current of 1 µA and can be powered from a single cell Li-Ion battery or even from 12V systems. The NCL30030B1DR2G also has an enable pin that can be used to enable/disable the device and thereby conserve power.

The output voltage range of the NCL30030B1DR2G is 0.3V to 36V and supports up to 96 LEDs connected in series. It suits lighting applications such as automotive headlights, LCD displays, projector lamps and streetlights, and to control multiple LED strings connected in parallel. It has a wide ambient temperature range of -40°C to +125°C and is available in a tiny 3mm x 3mm 8-pin QFN (quad flat no-lead) package.

The working principle of the NCL30030B1DR2G is very straightforward. It integrates a high-switch frequency DC/DC converter, a low-side switch, and control circuitry. The device accepts a wide input voltage range of 2.5V to 48V. It then uses the switch frequency convertor to convert the input voltage to the required output voltage, typically 0.3V to 36V. This output voltage can drive up to 500mA of LED current. The device can also be controlled from an external source, through the integrated PWM dimmer, or through the enable pin. The NCL30030B1DR2G also includes integrated thermal shutdown and over-current protection for ensuring console LED life.

The NCL30030B1DR2G is an excellent solution for driving multiple strings of LEDs in display and lighting applications. It is a bi-directional step-up/step-down LED driver that supports up to 96 LEDs connected in series. It offers low quiescent current and wide operating temperature range of -40°C to +125°C. Additionally, it supports 0.3V to 36V output voltage range and can be controlled externally, through the integrated PWM dimmer, or through the enable pin. All these features together make the NCL30030B1DR2G an efficient and reliable PMIC LED Driver.

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