Home Power management LED drivers LED display drivers
Home
Power management
LED drivers
LED display drivers

TLC5957

ACTIVE

48-channel, 16bit ES-PWM LED driver w/ pre-charge FET, LED open Detection and caterpillar cancelling

Order now
Data sheet

TLC5957

ACTIVE
Data sheet Order now

Product details

Features 48CH LED Driver, Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Thermal shutdown Analog dimming steps 512 Data transfer rate (typ) (MHz) 33 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, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Thermal shutdown Analog dimming steps 512 Data transfer rate (typ) (MHz) 33 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RTQ) 56 64 mm² (8 mm × 8 mm)
  • 48 Constant-Current Sink Output Channels
  • Sink Current Capability with Max BC/CC data
    • 1~20mA (VCC = 3.3V)
    • 1∼25mA (VCC = 5V)
  • Global Brightness Control (BC): 3-Bit (8 Step)
  • Global Brightness Control (CC) for Each Color Group:
    9-Bit (512 Step), Three Groups
  • LED Power Supply Voltage up to 10V
  • VCC = 3.0 to 5.5V
  • Knee Voltage Vout = 0.24V at 10mA
  • Constant Current Accuracy
    • Channel to Channel = ±1%(Typ), ±3%(Max)
    • Device to Device = ±1%(Typ), ±2%(Max)
  • Data Transfer Rate : 33MHz
  • Grayscale Control Clock : 33MHz
  • Pre-charge FET for Ghost Cancelling
  • Enhanced Circuit for Caterpillar Cancelling
  • Selectable Data Transfer Bit and PWM Bit (9 bit to 16 bit)
  • Selectable Traditional PWM and ES-PWM
  • LED Open Detection (LOD)
  • Thermal Shut Down (TSD)
  • Auto Display Repeat/Auto Data Refresh
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature : –40°C to +85°C
  • 48 Constant-Current Sink Output Channels
  • Sink Current Capability with Max BC/CC data
    • 1~20mA (VCC = 3.3V)
    • 1∼25mA (VCC = 5V)
  • Global Brightness Control (BC): 3-Bit (8 Step)
  • Global Brightness Control (CC) for Each Color Group:
    9-Bit (512 Step), Three Groups
  • LED Power Supply Voltage up to 10V
  • VCC = 3.0 to 5.5V
  • Knee Voltage Vout = 0.24V at 10mA
  • Constant Current Accuracy
    • Channel to Channel = ±1%(Typ), ±3%(Max)
    • Device to Device = ±1%(Typ), ±2%(Max)
  • Data Transfer Rate : 33MHz
  • Grayscale Control Clock : 33MHz
  • Pre-charge FET for Ghost Cancelling
  • Enhanced Circuit for Caterpillar Cancelling
  • Selectable Data Transfer Bit and PWM Bit (9 bit to 16 bit)
  • Selectable Traditional PWM and ES-PWM
  • LED Open Detection (LOD)
  • Thermal Shut Down (TSD)
  • Auto Display Repeat/Auto Data Refresh
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature : –40°C to +85°C

The TLC5957 is a 48-channel constant current sink driver. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control.

The output channels are divided into three groups, each group has a 512 step color brightness control (CC), CC adjusts brightness between colors. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC). BC adjusts brightness deviation between LED drivers. GS, CC and BC data are accessible via a serial interface port.

TLC5957 has one error flag: LED open detection (LOD), which can be read via a serial interface port. Each constant-current has a pre-charge field- effect transistor (FET), which can remove ghosting and improve display performance on the multiplexing LED display. Besides, TLC5957 has an enhanced circuit, it can cancel the caterpillar effect caused by LED open.

TLC5957 has a poker data transmission mode; GS data length can be configured from 9 bit to 16 bit according to PWM bits in each sub-segment. Poker Mode can significantly increase visual refresh rate in multiplexing applications.

The TLC5957 is a 48-channel constant current sink driver. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control.

The output channels are divided into three groups, each group has a 512 step color brightness control (CC), CC adjusts brightness between colors. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC). BC adjusts brightness deviation between LED drivers. GS, CC and BC data are accessible via a serial interface port.

TLC5957 has one error flag: LED open detection (LOD), which can be read via a serial interface port. Each constant-current has a pre-charge field- effect transistor (FET), which can remove ghosting and improve display performance on the multiplexing LED display. Besides, TLC5957 has an enhanced circuit, it can cancel the caterpillar effect caused by LED open.

TLC5957 has a poker data transmission mode; GS data length can be configured from 9 bit to 16 bit according to PWM bits in each sub-segment. Poker Mode can significantly increase visual refresh rate in multiplexing applications.
filter Find other LED display drivers
Download View video with transcript Video

Technical documentation

No results found. Please clear your search and try again.
View all 3
Top documentation Type Title Format options Date
* Data sheet TLC5957 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LED OPEN Detection and Caterpillar Cancelling datasheet PDF | HTML Aug 21, 2014
White paper Common LED Functions and LED Driver Design Considerations Sep 21, 2020
User guide How to Use TLC5957 to Build a Multiplexing LED Wall May 25, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins CAD symbols, footprints & 3D models
VQFN (RTQ) 56 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos