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TLC5954

ACTIVE

48ch LED driver with global brightness control, LED open/Short Detection and power-Save Mode

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Data sheet

TLC5954

ACTIVE
Data sheet Order now

Product details

Number of channels 48 LED current per channel (mA) 35 Vin (min) (V) 3 Vin (max) (V) 3.6 Features OVP Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 48 LED current per channel (mA) 35 Vin (min) (V) 3 Vin (max) (V) 3.6 Features OVP Operating temperature range (°C) -40 to 85 Rating Catalog
VQFN (RTQ) 56 64 mm² (8 mm × 8 mm)
  • 48 Constant-Current Sink Output Channels with On or Off Control
  • Current Capability:
    • 34.9 mA for 32 Channels
    • 24.4 mA 16Channels
  • No External Resistor for Current Setting
  • Maximum Current Control (MC): 3 Bits (8 Steps)
  • Global Brightness Control (BC) for Each Color Group: 7 Bits (128 Steps), Three Groups
  • LED Power-Supply Voltage: Up to 10 V
  • VCC = 3.0 V to 3.6 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 30 MHz
  • BLANK Pulse Duration: 40 ns (min)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • Power-Save Mode (PSM): 7-µA Consumption, High-Speed Recovery
  • Undervoltage Lockout Sets Default Data
  • Delayed Switching Minimizes Inrush Current
  • Operating Temperature: –40°C to +85°C
  • 48 Constant-Current Sink Output Channels with On or Off Control
  • Current Capability:
    • 34.9 mA for 32 Channels
    • 24.4 mA 16Channels
  • No External Resistor for Current Setting
  • Maximum Current Control (MC): 3 Bits (8 Steps)
  • Global Brightness Control (BC) for Each Color Group: 7 Bits (128 Steps), Three Groups
  • LED Power-Supply Voltage: Up to 10 V
  • VCC = 3.0 V to 3.6 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 30 MHz
  • BLANK Pulse Duration: 40 ns (min)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • Power-Save Mode (PSM): 7-µA Consumption, High-Speed Recovery
  • Undervoltage Lockout Sets Default Data
  • Delayed Switching Minimizes Inrush Current
  • Operating Temperature: –40°C to +85°C

The TLC5954 is a 48-channel, constant-current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The output channels (OUTX) are grouped into three groups of 16 channels. Each channel group (R, G, and B) has a 128-step global brightness control (BC) function. The maximum current value of all 48 channels can be set with an 8-step maximum current control (MC) function. The device has two error flags: LED open detection (LOD) and LED short detection (LSD). The error flags can be read via a serial interface port. The device also has a power-save mode that sets the total current consumption to 7 µA (typ) when all outputs are off.

The TLC5954 is a 48-channel, constant-current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The output channels (OUTX) are grouped into three groups of 16 channels. Each channel group (R, G, and B) has a 128-step global brightness control (BC) function. The maximum current value of all 48 channels can be set with an 8-step maximum current control (MC) function. The device has two error flags: LED open detection (LOD) and LED short detection (LSD). The error flags can be read via a serial interface port. The device also has a power-save mode that sets the total current consumption to 7 µA (typ) when all outputs are off.
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* Data sheet TLC5954 48-Channel, Constant-Current LED Driver with Global Brightness Control, LED Open-Short Detection, and Power-Save Mode datasheet PDF | HTML Apr 15, 2014
White paper Common LED Functions and LED Driver Design Considerations Sep 21, 2020

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TLC5954 IBIS Model

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VQFN (RTQ) 56 Ultra Librarian
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