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Treiber für LED-Displays

TLC5958

AKTIV

48-Kanal-, 16-Bit-ES-PWM-LED-Treiber mit vorab geladenem FET, LED-Unterbrechungserkennung und 48-k-B

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Datenblatt

TLC5958

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Features 48CH LED Driver, Error Flag, Fault Detection, LED Open Detection, PWM LED Driver, Pre-Charge FET, SRAM, Thermal shutdown Analog dimming steps 512 Data transfer rate (typ) (MHz) 25 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
Features 48CH LED Driver, Error Flag, Fault Detection, LED Open Detection, PWM LED Driver, Pre-Charge FET, SRAM, Thermal shutdown Analog dimming steps 512 Data transfer rate (typ) (MHz) 25 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RTQ) 56 64 mm² 8 x 8
  • 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
  • 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

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: .

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: .
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Technische Dokumentation

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Typ Titel Datum
* Data sheet 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) PDF | HTML 05 Sep 2014
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Application note Build high density, high refresh rate, multiplexing LED panel with TLC5958 17 Dez 2014

Design und Entwicklung

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Referenzdesigns

TIDA-00161 — Referenzdesign für LED-Farbmatrix (64 x 64, RGB) mit High Multiplexing

This reference design is a complete 64 pixel x 64 pixel Red/Green/Blue LED panel with TLC5958 driver IC.
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 (...)
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VQFN (RTQ) 56 Ultra Librarian
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