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24-Channel Constant-Current LED Driver with Global Brightness and LED Open Short Detection


Package | PIN: DAP | 32
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $3.05
10-24 $2.75
25-99 $2.56
100-249 $2.24
250-499 $2.10
500-749 $1.79
750-999 $1.51
1000+ $1.44


  • 24-Channel Constant-Current Sink Output With On-Off Control
  • Current Capability:
    • 35 mA for 16Channels
    • 26.2 mA for 8 Channels
  • Global Brightness Control (BC) for Each Color Group: 7-Bit (128 Step), Three Groups
  • LED Power-Supply Voltage up to 15 V
  • VCC = 3 V to 5.5 V
  • Constant-Current Accuracy:
    • Channel-to-Channel =±1%
    • Device-to-Device = ±3%
  • CMOS Logic Level I/O
  • Data Transfer Rate: 35 MHz
  • BLANK Pulse Duration: 15 ns
  • Open-Load, Shorted-Load, and Overtemperature Detection
  • Thermal Shutdown (TSD) With Auto Restart
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to 85°C
  • Packages: HTSSOP-32, QFN-32

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Texas Instruments  TLC5952DAP

The TLC5952 device is a 24-channel, constant-current sink driver. Each channel can beturned on or off with internal register data. The output channels are grouped into three groups ofeight channels each. Each channel group has a 128-step global brightness control (BC) function.Both on-off data and BC are writable via a serial interface. The maximum current value of all 24channels is set by a single external resistor.

The TLC5952 device has three error detection circuits: LED-open detection (LOD),LED-shorted detection (LSD), and a thermal error flag (TEF). The error detection is read via aserial interface.