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PCA9955BTWJ
Product Overview
Category
The PCA9955BTWJ belongs to the category of LED drivers.
Use
It is used for controlling and driving LED lighting applications.
Characteristics
- High efficiency
- Low power consumption
- Integrated current sinking FETs
- Programmable PWM control
Package
The PCA9955BTWJ comes in a TSSOP package.
Essence
This LED driver is essential for precise control and management of LED lighting systems.
Packaging/Quantity
The PCA9955BTWJ is typically packaged in reels with a quantity of 2500 units per reel.
Specifications
- Supply Voltage: 3 V to 5.5 V
- Number of Channels: 16
- Interface: I2C
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The PCA9955BTWJ has a 24-pin TSSOP package with the following pin configuration: 1. SDA (Serial Data Input) 2. SCL (Serial Clock Input) 3. GND (Ground) 4. VCC (Supply Voltage) 5. OE (Output Enable) 6. OUT0 to OUT15 (LED Output Pins)
Functional Features
- Individual LED brightness control
- Programmable group dimming control
- Error detection and correction
- Internal oscillator for PWM control
Advantages
- Precise control over LED brightness
- Efficient power management
- Simplified design for LED lighting systems
- Error detection enhances reliability
Disadvantages
- Limited to 16 channels
- Requires external components for thermal management
Working Principles
The PCA9955BTWJ operates by receiving commands through the I2C interface to control the brightness of individual LEDs or groups of LEDs. It utilizes an internal oscillator to generate PWM signals, enabling accurate dimming control.
Detailed Application Field Plans
The PCA9955BTWJ is suitable for various LED lighting applications, including: - Architectural lighting - Automotive lighting - Display backlighting - Signage and decorative lighting
Detailed and Complete Alternative Models
Some alternative models to the PCA9955BTWJ include: - TLC5947 - AS1130 - MAX7219
In conclusion, the PCA9955BTWJ is a versatile LED driver offering precise control and efficient management of LED lighting systems. Its high efficiency and programmable features make it suitable for a wide range of applications, while alternative models provide flexibility for different design requirements.
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What is PCA9955BTWJ?
- PCA9955BTWJ is a 16-channel constant current LED driver with an I2C interface, designed for controlling LED lighting in various applications.
What is the maximum output current of PCA9955BTWJ?
- The maximum output current per channel of PCA9955BTWJ is 40 mA.
Can PCA9955BTWJ be used for dimming LEDs?
- Yes, PCA9955BTWJ supports individual LED brightness control, allowing for dimming of LEDs.
What is the supply voltage range for PCA9955BTWJ?
- PCA9955BTWJ operates within a supply voltage range of 3 V to 5.5 V.
Is PCA9955BTWJ suitable for automotive applications?
- Yes, PCA9955BTWJ is AEC-Q100 qualified and suitable for automotive applications.
How many PCA9955BTWJ devices can be connected on the same I2C bus?
- Multiple PCA9955BTWJ devices can be connected on the same I2C bus, as each device has a unique address that can be set using address pins.
Does PCA9955BTWJ have built-in thermal shutdown protection?
- Yes, PCA9955BTWJ features built-in thermal shutdown protection to prevent damage from excessive heat.
Can PCA9955BTWJ be used in conjunction with a microcontroller?
- Yes, PCA9955BTWJ is designed to work with microcontrollers and can be easily controlled through the I2C interface.
What is the typical application of PCA9955BTWJ?
- PCA9955BTWJ is commonly used in applications such as LED displays, signage, architectural lighting, and backlighting.
Is PCA9955BTWJ compatible with both SMT and through-hole assembly?
- Yes, PCA9955BTWJ is available in both surface-mount and through-hole package options, providing flexibility for different assembly methods.