Allicdata Part #: | 568-3390-5-ND |
Manufacturer Part#: |
PCA9553D/01,112 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | NXP USA Inc |
Short Description: | IC LED DRIVER LIN DIM 25MA 8SO |
More Detail: | LED Driver IC 4 Output Linear I²C Dimming 25mA 8-... |
DataSheet: | PCA9553D/01,112 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Specifications
Voltage - Output: | -- |
Base Part Number: | PCA9553 |
Supplier Device Package: | 8-SO |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C (TA) |
Applications: | -- |
Dimming: | I²C |
Frequency: | 400kHz |
Current - Output / Channel: | 25mA |
Series: | -- |
Voltage - Supply (Max): | 5.5V |
Voltage - Supply (Min): | 2.3V |
Number of Outputs: | 4 |
Internal Switch(s): | Yes |
Topology: | -- |
Type: | Linear |
Part Status: | Obsolete |
Packaging: | Tube |
Description
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The PCA9553D/01,112 is a type of power management integrated circuit (PMIC) specifically designed for driving LEDs. It is part of the Texas Instruments \'TINI family\' which integrates key regulated power management functions into a single device, simplifying design and improving reliability. The PCA9553D/01,112 can be used in a wide variety of ‘solid state lighting’ applications, including automotive, industrial and consumer general illumination, interior and exterior lighting systems. It is a sophisticated IC which integrates both lighting control and LED protection into one tiny package.The PCA9553D/01,112 can be used to control up to eight LED strings, each with its own adjustable current limit and independent LED dimming behavior. Its high-side LED current sensing capabilities enable LED current level to be precisely controlled, whether adjusting the master brightness level of the entire fixture or the individual levels of each LED string. Furthermore, the IC provides protection from over-current and over-temperature conditions. The most unique feature of this device is its ability to use a single external resistor to set the normal mode current limit of each LED string. This eliminates the need for linear current regulators while also providing a fast set-up operation. Each output\'s current limit is simply adjusted using a single external resistor.The PCA9553D/01,112 also features one-shot mode and Pulse Width Modulation (PWM) dimming functions. One-shot mode is a time-dependent dimming mode which enables a smooth dimming transition of a LED by ramping up or down in a user-defined time. The PWM dimming function can be used to regulate the LED output in a more precise manner, enabling greater accuracy in dimming control.To save power, the PCA9553D/01,112 has a built-in auto-shutdown mode which disables outputs when the LED is not in use. This helps reduce power consumption and prolongs LED life.In summary, the PCA9553D/01,112 is an ideal PMIC for driving LEDs in a variety of applications. It is capable of controlling up to 8 LED strings with one external resistor, providing precise current and dimming control, as well as high-side LED current sensing and protection from over-current and over-temperature conditions. It is a powerful, yet simple to configure device that offers many features and benefits.The specific data is subject to PDF, and the above content is for reference
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