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TLC5955DCAR
+NomenclatureIC LED DRV LIN ANALOG 56HTSSOP
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FabricantTexas Instruments
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Pièce fabricant #TLC5955DCAR
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En stock3629
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Spécifications
| Attribut | Valeur |
| Part Status | Active |
| Base Product Number | TLC5955 |
| Type | Linear |
| Topology | Shift Register |
| Internal Switch(s) | Yes |
| Number of Outputs | 48 |
| Voltage - Supply (Min) | 3V |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Output | 10V |
| Current - Output / Channel | 30mA |
| Dimming | Analog |
| Applications | Signage |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | 56-PowerTFSOP (0.240", 6.10mm Width) |
| Supplier Device Package | 56-HTSSOP |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Présentation
Description
The TLC5955DCAR includes features such as grayscale correction, color enhancement, and error detection, ensuring reliable and vibrant LED performance. Its integrated grayscale PWM with 16,384 steps per channel allows for smooth and flicker-free dimming. Additionally, the device supports daisy-chaining, making it suitable for large displays by connecting multiple drivers in sequence.
With its compact package and robust design, the TLC5955DCAR is ideal for applications in digital signage, architectural lighting, and other areas requiring precision LED control. It operates over a wide temperature range and offers protection features like open and short circuit detection, enhancing its reliability in various environments.
Equivalent
1. ISSI IS31FL3733 - 192 LEDs (16x12 matrix) driver.
2. Maxim Integrated MAX6966 - 10-port LED driver.
3. ON Semiconductor CAT4101 - 1A LED driver.
4. NXP PCA9956B - 24-channel I²C-bus controlled constant current LED driver.
These alternatives offer varying channel counts and interfaces, so compatibility will depend on specific application requirements.
Features
The driver includes an Enhanced Spectrum PWM (ES-PWM) for improved color rendition and reduced flickering. It features dot correction, with a 128-step adjustment to compensate for LED brightness variations. The TLC5955DCAR also supports error detection for LED open and short circuits, enhancing reliability.
The device operates over a wide voltage range and includes thermal shutdown protection. Its integrated precharge FET reduces ghosting effects, and the device can be daisy-chained for controlling larger LED arrays. Suitable for use in various applications, it is typically employed in full-color LED displays, digital signage, and architectural lighting systems.
Pinout
- Pin Count: 56 pins
- Function: The TLC5955 is a 48-channel LED driver that offers high resolution and precise current control for each channel. It is capable of driving RGB LEDs with 16-bit grayscale PWM control and 7-bit dot correction for uniform brightness and color performance. The IC supports a variety of applications, including large LED displays and lighting systems.
Key functions include:
- Grayscale PWM control to adjust LED brightness.
- Dot correction to correct variations in LED brightness.
- Internal and external thermal error flag for over-temperature protection.
- Enhanced spectrum PWM mode to reduce visible flickering.
- Integrated current gain control for fine-tuning LED brightness levels.
These features make the TLC5955DCAR suitable for applications requiring high dynamic range and precise color control such as billboards, video walls, and stage lighting.
Manufacturer
Application
1. LED Displays: Used in video walls, digital signage, and large outdoor LED displays, where high-resolution and color accuracy are crucial.
2. Architectural Lighting: Suitable for dynamic lighting installations in buildings and landmarks, offering color control and consistency.
3. Stage Lighting: Utilized in entertainment venues to create vibrant lighting effects with precise control.
4. Automotive Lighting: Applied in advanced automotive lighting systems for dashboards, ambient lighting, and headlights.
5. Backlighting: Used for backlighting in LCD panels, enhancing image quality with uniform brightness.
The TLC5955DCAR ensures consistent performance with features like grayscale control, error detection, and thermal management.