LP5521YQ/NOPB Allicdata Electronics

LP5521YQ/NOPB Integrated Circuits (ICs)

Allicdata Part #:

LP5521YQ/NOPBTR-ND

Manufacturer Part#:

LP5521YQ/NOPB

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC LED DRIVER RGLTR DIM 24WQFN
More Detail: LED Driver IC 3 Output DC DC Regulator Switched Ca...
DataSheet: LP5521YQ/NOPB datasheetLP5521YQ/NOPB Datasheet/PDF
Quantity: 37000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Stock 37000Can Ship Immediately
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Type: DC DC Regulator
Topology: Switched Capacitor (Charge Pump)
Internal Switch(s): Yes
Number of Outputs: 3
Voltage - Supply (Min): 2.7V
Voltage - Supply (Max): 5.5V
Voltage - Output: 4.55V
Current - Output / Channel: 25.5mA
Frequency: 1.25MHz
Dimming: I²C
Applications: Backlight
Operating Temperature: -30°C ~ 85°C (TA)
Mounting Type: Surface Mount
Package / Case: 24-WFQFN Exposed Pad
Supplier Device Package: 24-LLP (5x4)
Base Part Number: LP5521
Description

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PMIC – LED Drivers are the type of integrated circuits used for controlling the lighting of LEDs, which are extensively used for backlighting and automotive lighting applications. LP5521YQ/NOPB is one of the most popular products of this category. This IC allows the overall efficiency of LED systems by a factor of two or more. It has a built-in LED current controller, output driver stage and LED bank selection features.

LP5521YQ/NOPB Datasheet describes its major features as few blocks. It offers two features, theOutput Configurable. It is a 3.3V-powered dual voltage device, with the Output Execution Control, which is the main control block. The device has individual 1-to-7 adjustable PWM current sources, and the integrated programmable current source and constant PWM current source. The Output Driver allows bidirectional control and can be used to drive an external transistor or an integrated FET switch.

In addition to these features, the LP5521YQ/NOPB also offers some additional features. It includes thermistor sensing and temperature pulse control, enabling users to regulate the temperature of the LED based on the ambient conditions. It can also be used for the dimming of LEDs through PWM and backup functions for timer alarms. It also has a differential voltage regulator, which can be used for the adjustment of temperature, high power level and current. The output stage also offers protection against overloads, ESD, and open/short circuit.

LP5521YQ/NOPB application extends beyond the lighting of LEDs. It is also used for controlling the intensity of displays, and can be used to drive transformers, motors, and fans. It can also be used to monitor and control the temperature of systems and devices. Additionally, it can be used in wireless communications and audio systems.

LP5521YQ/NOPB working principle involves a series of steps. First, it detects the voltage and current of the LED, and then uses this data to adjust the current according to the programmed or desired current level. The chip then converts the current into a binary code and feeds this code to the LED output driver, which regulates the LED current level. Finally, the LED current can be adjusted by changing the binary code through the external PWM or analog signal.

In conclusion, LP5521YQ/NOPB is a powerful IC that can be used in multiple applications. It has the ability to provide the most efficient and precise current control in a variety of LED applications, as well as its other features. The working principle of this IC is simple and effective, making it a popular choice for LED applications.

The specific data is subject to PDF, and the above content is for reference

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