48 channel, 16 bit ES-PWM, LED driver with pre-charge FET, LED open detection and 48k bit memory
Product details
Parameters
Package | Pins | Size
Features
- 48 Channels Constant Current Sink Output
- Sink Current Capability with Max BC/CC data:
- 25mA at 5VCC
- 20mA at 3.3VCC
- Global Brightness Control (BC) : 3-Bit (8 Step)
- Color Brightness Control (CC) for Each Color Group:
9-Bit (512 Step), Three Groups - Grayscale(GS) Control with Multiplexed
Enhanced Spectrum(ES) PWM: 16bit - 48K bit Grayscale Data Memory Support
32-multiplexing - LED Power Supply Voltage Up To 10V
- Vcc = 3.0V to 5.5V
- Constant Current Accuracy
- Channel to Channel = ±1%(Typ), ±3%(Max)
- Device to Device = ±1%(Typ), ±2%(Max)
- Data Transfer Rate: 25MHz
- Gray Scale Clock: 33MHz
- LED Open Detection (LOD)
- Thermal Shut Down (TSD)
- IREF Resistor Short Protection (ISP)
- Power-Save Mode (PSM) with high speed recovery
- Delay Switching to Prevent Inrush Current
- Pre-charge FET to Avoid Ghosting Phenomenon
- Operating Temperature : –40°C to +85°C
Description
The TLC5958 is a 48 channels constant-current sink driver for multiplexing system with 1 to 32 duty ratio. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS).
48K bit display memory is implemented to increase the visual refresh rate and to decrease the GS data writing frequency.
The output channels are grouped into three groups, each group has 16 channels. Each group has a 512-step color brightness control (CC) function. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC) function. CC and BC can be used to adjust the brightness deviation between LED drivers. GS, CC, and BC data are accessible via a serial interface port.
Send request via email for Application Note: Build High Density, High Refresh Rate, Multiplexing LED Panel with TLC5958.
The TLC5958 has one error flag: LED open detection (LOD), which can be read via a serial interface port. The TLC5958 also has a power-save mode that sets the total current consumption to 0.8mA (typ) when all outputs are off.
Send request via email for Application Note: .Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TLC5958 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LED Open Detection and Display Data Memory Support 32-Multiplexing datasheet (Rev. A) | Sep. 05, 2014 |
White paper | Common LED Functions and LED Driver Design Considerations | Sep. 21, 2020 | |
Technical articles | Here's how body electronics and lighting technology are changing the driving experience | Sep. 26, 2016 | |
Technical articles | LED brightness adjustment: high-frequency PWM dimming | Aug. 26, 2016 | |
Application note | Build high density, high refresh rate, multiplexing LED panel with TLC5958 | Dec. 17, 2014 | |
Technical articles | Take better selfies with innovative LED flashes | Nov. 18, 2014 | |
Technical articles | Solving the automotive EMI issues in new cars with all the screens | Sep. 10, 2014 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Due to its higher integration and high time multiplexing support, this design drives total 12,288 individual LED lamps (= 64 x 64 x 3color) by only 8pcs of TLC5958 IC. Still this LED panel (...)
Design files
-
download TIDA-00161 BOM.pdf (79KB) -
download TIDA-00161 Gerber.zip (2167KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
QFN (RTQ) | 56 | View options |
Ordering & quality
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