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Parameters

Features Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, ON/OFF LED Driver, Power Good, Thermal Shutdown Analog dimming steps 128 Data transfer rate (Typ) (MHz) 35 Ch to ch accuracy (Typ) (+/- %) 1 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other Signage LED display drivers

Package | Pins | Size

HTSSOP (DAP) 32 68 mm² 6.2 x 11 open-in-new Find other Signage LED display drivers

Features

  • 24-Channel Constant-Current Sink Output With On-Off Control
  • Current Capability:
    • 35 mA for 16 Channels
    • 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

All trademarks are the property of their respective owners.

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Description

The TLC5952 device is a 24-channel, constant-current sink driver. Each channel can be turned on or off with internal register data. The output channels are grouped into three groups of eight 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 24 channels 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 a serial interface.

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Technical documentation

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Type Title Date
* Datasheet 24-Channel, Constant-Current LED Driver With Global Brightness Control And LED Open-Short Detection datasheet (Rev. A) Jul. 25, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
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Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SLIM242A.ZIP (34 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
HTSSOP (DAP) 32 View options

Ordering & quality

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