Images à titre indicatif uniquement
TLC5955RTQR
+NomenclatureIC LED DRV LIN 23.9/31.9MA 56QFN
-
FabricantTexas Instruments
-
Pièce fabricant #TLC5955RTQR
-
Package VQFN (RTQ)-56
-
En stock7248
365 Garantie qualité 24h/24
7*24 Garantie de service 24h/24
90-Garantie après-vente 24h/24
Garantie produit authentique
Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Linear |
| Topology | Shift Register |
| InternalSwitch(s) | Yes |
| NumberofOutputs | 48 |
| Voltage-Supply(Min) | 3V |
| Voltage-Supply(Max) | 5.5V |
| Voltage-Output | 10V |
| Current-Output/Channel | 23.9mA, 31.9mA |
| Applications | Signage |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 56-VFQFN Exposed Pad |
Présentation
Description
The TLC5955RTQR supports a maximum output current of 25 mA per channel, ensuring consistent and reliable LED operation. It includes a 24-bit shift register and data latch, which enables serial communication for data input, making it compatible with various microcontroller platforms. The device also features enhanced thermal management, under-voltage lockout, and error detection functions to protect against over-temperature and fault conditions.
Packaged in a TQFP (Thin Quad Flat Pack), the TLC5955RTQR is suitable for space-constrained applications. Its flexibility and robust feature set make it ideal for complex LED lighting designs, requiring precise color matching and intensity control.
Equivalent
1. TLC5957 from Texas Instruments - Offers similar functionality with minor differences in specifications.
2. LP3950 series from Texas Instruments - Multi-channel LED drivers with comparable features.
3. MBI5042 from Macroblock - A 16-channel constant current LED driver.
4. WS2812B - Integrated driver and RGB LED, although more integrated than TLC5955.
Compatibility depends on application-specific requirements such as output channels and current ratings.
Features
1. 48 Output Channels: Each channel offers 16-bit grayscale (GS) control and 7-bit brightness control (BC), allowing precise LED brightness and color adjustments.
2. High Resolution: With 16-bit depth, it supports up to 65536 grayscale levels per channel, enabling smooth color transitions and finer color accuracy.
3. Enhanced Drive Capability: It provides a constant-current output for LEDs, ensuring consistent brightness and color stability over various operating conditions.
4. Integrated Control Logic: Includes features for daisy chaining multiple ICs, simplifying the control of large LED arrays.
5. Power Efficiency: Designed with low power dissipation features, it helps reduce overall power consumption in LED systems.
6. Diagnostic Features: It includes open and short detection capabilities for improved reliability and maintenance ease.
7. Package: Available in a 56-pin QFN package, allowing for compact design and integration in space-constrained applications.
These features make the TLC5955RTQR suitable for LED display, signage, and advanced lighting solutions requiring high precision and control.
Pinout
- 48 Pins: The TLC5955RTQR package is available in a VQFN (Very Thin Quad Flat No-lead) form with 48 pins.
- Main Functions:
- 48-Channel Constant Current LED Driver: Capable of driving up to 48 separate LED channels, each with adjustable current settings.
- Current Control: Offers 16-bit grayscale (GS) control and 7-bit global brightness control (BC) for precise LED brightness management.
- Enhancements: Includes features like error detection, pre-charge FET for ghosting reduction, and dot correction.
- Interface: Utilizes a serial interface for programming and controlling the LED channels. This interface is compatible with various microcontrollers and processors.
- Power Efficiency: Designed for high efficiency with low power consumption features.
This makes the TLC5955RTQR suitable for complex, high-resolution LED displays requiring fine-grained brightness and color control.