SLVSA96A September   2015  – March 2016 TLC59291

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Maximum Constant Sink Current
      2. 8.3.2 Global Brightness Control (BC) Function
      3. 8.3.3 Thermal Shutdown (TSD) and Thermal Error Flag (TEF)
      4. 8.3.4 Pre-Thermal Warning (PTW)
      5. 8.3.5 Current Reference Terminal - IREF Terminal - Short Flag (ISF)
      6. 8.3.6 Noise Reduction
    4. 8.4 Device Functional Modes
      1. 8.4.1 Blank Mode Selection (BLKMS)
      2. 8.4.2 Power-Save Mode
      3. 8.4.3 LED Open Detection (LOD)
      4. 8.4.4 LED Short Detection (LSD)
      5. 8.4.5 Invisible Detection Mode (IDM)
      6. 8.4.6 Output Leakage Detection (OLD)
      7. 8.4.7 Status Information Data (SID)
    5. 8.5 Register Maps
      1. 8.5.1 Register and Data Latch Configuration
        1. 8.5.1.1 Common Shift Register
        2. 8.5.1.2 Output On/Off Data Latch
        3. 8.5.1.3 Control Data Latch
        4. 8.5.1.4 Output On/Off Data Write Timing and Output Control
        5. 8.5.1.5 Function Control Data Writing
        6. 8.5.1.6 Function Control (FC) Data
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

1 Features

  • 8/16 Constant-Current Sink Output Channels with On/Off Control
  • Current Capability:
    • 1 - 40 mA (VCC ≤ 3.6 V)
    • 1 - 50 mA (VCC > 3.6 V)
  • Global Brightness Control: 7-Bit (128 Steps)
  • Power-Supply Voltage Range: 3 V to 5.5 V
  • LED Power-Supply Voltage: Up to 10 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±3% (Typical)
    • Device-to-Device = ±2% (Typical)
  • Low Quiescent Current
  • SOUT can be Configured for 8-Channel or 16-Channel Output
  • LED Open Detection (LOD)/LED Short Detection (LSD) with Invisible Detection Mode (IDM)
  • Output Leakage Detection (OLD) Detects 3 µA Leak
  • Pre-Thermal Warning (PTW)
  • Thermal Shutdown (TSD)
  • Current Reference Terminal Short Flag (ISF)
  • Power-Save Mode with 10-µA Consumption
  • Undervoltage Lockout Sets the Default Data
  • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
  • Operating Temperature: –40°C to 85°C

2 Applications

  • Industry LED Indicator
  • Illumination
  • LED Video Display

3 Description

The TLC59291 is a 8/16-channel constant current sink LED driver. Each channel can be turned on-off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor and 128 steps for the global brightness control (BC).

The TLC59291 has six type error flags: LED open detection (LOD), LED short detection (LSD), output leak detection (OLD), reference terminal short detection (ISF), Pre thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.

The TLC59291 has low quiescent current in normal mode, it also has a power-save mode that sets the total current consumption to 10 uA (typical) when all outputs are off.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TLC59291 VQFN (24) 4.00mm x 4.00mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Circuit (Multiple Daisy Chained TLC59291s)

TLC59291 typ_app_slvsa96.gif