LM2793LD/NOPB

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The LM2793LD/NOPB is a wide input voltage, generic constant current LED driver that can be used to drive multiple LEDs in series while keeping them evenly lit. This part uses a patented system-on-chip (SoC) architecture, allowing controlling up to four individual LEDs or single color strips. In addition, it has an adjustable current range and constant current output.

This device can be used in a variety of applications, such as LCD backlighting and automobiles, including those with high-end interior lighting requirements. In addition, the LM2793LD can be used in the automotive safety and comfort systems, such as enabling instrument cluster dimming by controlling the brightness of the device\'s LEDs. Moreover, the device has excellent thermal performance that allows operation in the temperature range of − 40 °C to + 85 °C.

The LM2793LD/NOPB can be categorized under PMIC - LED Drivers. It is a “constant current” LED driver that limits the amount of current flowing through a set of LEDs, thereby allowing the same light output each time the LEDs are energized. This is achieved by sensing the amount of current in the LEDs and adjusting the amount of current in the circuit, so that the LEDs remain in a balanced state. The low dropout voltage at the output can be programmed to regulate the LEDs between 0.9V and 36V for various LED applications.

The LM2793LD/NOPB features a three-state control input, allowing for pin selection. This allows the user to select from either active-high, active-low, or open option. The LM2793LD/NOPB also has a PWM (pulse width modulation) control input that can adjust the LED brightness and control the LED dimming levels. In addition, the device is protected by current foldback and over-temperature shutdown.

The LM2793LD/NOPB has 10 precise current limit values that can be programmed through the bidirectional serial interface pins.Accordingly, each output can have its own current setting which can vary between 0mA and 25mA. Additionally, the device\'s operating temperature range has been extended from 0°C to +85°C for wider operation margins. Moreover, the device features a 1MHz switching frequency and a maximum output current of 25mA, as well as thermal and overvoltage protection.

In conclusion, the LM2793LD/NOPB is a wide input voltage, generic constant current LED driver that can be used to drive multiple LEDs in series while keeping them evenly lit. Its patented SoC architecture allows controlling up to four individual LEDs or single color strips. The device has good thermal performance, 10 precise current limit values, and three-state control that allow for pin selection and PWM control. Moreover, it is protected by current foldback and over-temperature shutdown. All these features make the LM2793LD/NOPB suitable for multiple applications and it can be classified as PMIC - LED Drivers.

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