SBVS225B March   2013  – May 2014 TLC5973

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 Handling 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 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Pin-Equivalent Input and Output Schematic Diagrams
    2. 7.2 Test Circuits
    3. 7.3 Timing Diagrams
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Grayscale (GS) Control
      2. 8.3.2 EasySet and Shunt Regulator
      3. 8.3.3 No Limit Cascading
      4. 8.3.4 Constant Sink Current Value
      5. 8.3.5 Connector Design
    4. 8.4 Device Functional Modes
      1. 8.4.1 Grayscale (GS) Function (PWM Control)
        1. 8.4.1.1 PWM Control
      2. 8.4.2 One-Wire Interface (EasySet) Data Writing Method
        1. 8.4.2.1 Data Transfer Rate (tCYCLE) Measurement Sequence
        2. 8.4.2.2 Data ‘0’ and Data ‘1’ Write Sequence (Data Write Sequence)
        3. 8.4.2.3 One Communication Cycle End of Sequence (EOS)
        4. 8.4.2.4 GS Data Latch (GSLAT) Sequence
    5. 8.5 Programming
      1. 8.5.1 Controlling Devices Connected in Series
    6. 8.6 Register Maps
      1. 8.6.1 Register and Data Latch Configuration
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 No Internal Shunt Regulator Mode 1
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 No Internal Shunt Regulator Mode 2
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
      3. 9.2.3 Internal Shunt Regulator Mode
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 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 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Specifications

6.1 Absolute Maximum Ratings(1)

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Voltage(2) Supply, VCC VCC –0.3 7.0 V
Input range, VIN SDI –0.3 VCC + 1.2 V
Output range, VOUT OUT0 to OUT2 –0.3 21 V
SDO –0.3 7.0 V
Current Output (dc), IOUT OUT0 to OUT2 0 60 mA
Operating junction temperature, TJ –40 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods my affect device reliability.
(2) All voltages are with respect to network ground pin.

6.2 Handling Ratings

MIN MAX UNIT
Tstg Storage temperature range –55 150 °C
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) –8000 8000 V
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) –2000 2000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
DC CHARACTERISTICS
VCC Supply voltage No internal shunt regulator mode 3.0 5.0 5.5 V
Internal shunt regulator mode 6.0 V
VO Voltage applied to output OUT0 to OUT2 21 V
VIH High-level input voltage SDI 0.7 × VCC VCC V
VIL Low-level input voltage SDI GND 0.3 × VCC V
VIHYST Input voltage hysteresis SDI 0.2 × VCC V
IOH High-level output current SDO –2 mA
IOL Low-level output current SDO 2 mA
OUT0 to OUT2 (VCC ≤ 4.0 V) 2 35 mA
OUT0 to OUT2 (VCC > 4.0 V) 2 50 mA
IREG Shunt regulator sink current VCC 20 mA
TA Operating free-air temperature range –40 85 °C
TJ Operating junction temperature range –40 125 °C
AC CHARACTERISTICS
fCLK (SDI) Data transfer rate SDI 100 3000 kHz
tSDI SDI input pulse duration SDI 60 0.5 / fCLK ns
tWH Pulse duration, high SDI 14 ns
tWL Pulse duration, low SDI 14 ns
tH0 Hold time: end of sequence (EOS) SDI↑ to SDI↑ 3.5 / fCLK 5.5 / fCLK ns
tH1 Hold time: data latch (GSLAT) SDI↑ to SDI↑ 8 / fCLK ns

6.4 Thermal Information

THERMAL METRIC(1) TLC5973 UNIT
D (SO)
8 PINS
RθJA Junction-to-ambient thermal resistance 134.6 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 88.6
RθJB Junction-to-board thermal resistance 75.3
ψJT Junction-to-top characterization parameter 37.7
ψJB Junction-to-board characterization parameter 74.8
RθJC(bot) Junction-to-case (bottom) thermal resistance N/A
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

At TA = –40°C to 85°C, VCC = 3 V to 6.0 V, and CVCC = 0.1 µF. Typical values at TA = 25°C and VCC = 5.0 V, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VOH High-level output voltage (SDO) IOH = –2 mA VCC – 0.4 VCC V
VOL Low-level output voltage (SDO) IOL = 2 mA 0 0.4 V
VIREF Reference voltage output RIREF = 1.5 kΩ 1.18 1.20 1.23 V
VR Shunt regulator output voltage (VCC) ICC = 1 mA, SDI = low 5.9 V
ICC0 Supply current (VCC) VCC = 3.0 V to 5.5 V , SDI = low, all grayscale (GSn) = FFFh, VOUTn = 1 V, SDO = 15 pF, RIREF = 27 kΩ
(IOUTn = 2-mA target)		 3 6 mA
ICC1 VCC = 3.0 V to 5.5 V, SDI = low, all grayscale (GSn) = FFFh, VOUTn = 1 V, SDO = 15 pF, RIREF = 3 kΩ
(IOUTn = 17-mA target)		 4 7 mA
ICC2 VCC = 3.0 V to 5.5 V, SDI = 5 MHz, all grayscale (GSn) = FFFh, VOUTn = 1 V, SDO = 15 pF,
RIREF = 3 kΩ (IOUTn = 17-mA target)		 5 8 mA
ICC3 VCC = 3.0 V to 5.5 V, SDI = 5 MHz, all grayscale (GSn) = FFFh, VOUTn = 1 V, SDO = 15 pF,
RIREF = 1.5 kΩ (IOUTn = 34-mA target)		 5.5 10 mA
IOLC Constant output current
(OUT0 to OUT2)		 All OUTn = on, VOUTn = 1 V, VOUTfix = 1 V,
RIREF = 1.5 kΩ		 31 34 37 mA
IOLKG Output leakage current
(OUT0 to OUT2)		 GSn = 000h, VOUTn = 21 V TJ = –40°C to 85°C 0.1 μA
TJ = 85°C to 125°C 0.2 μA
ΔIOLC0 Constant-current error
(channel-to-channel)(1) 		All OUTn = on, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ±0.5% ±3%
ΔIOLC1 Constant-current error
(device-to-device)(2) 		All OUTn = on, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ±0.5% ±6%
ΔIOLC2 Line regulation of constant-current output(3) All OUTn = on, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ±0.5 ±1 %/V
ΔIOLC3 Load regulation of constant-current output(4) All OUTn = on, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ ±0.5 ±1 %/V
RPD Internal pull-down resistance (SDI) At SDI 1 MΩ
(1) The deviation of each output (OUT0 to OUT2) from the constant-current average. Deviation is calculated by the formula: TLC5973 q_delta01_bvs225.gif
, where n = 0 to 2.
(2) Deviation of the constant-current average in each color group from the ideal constant-current value. Deviation is calculated by the formula:
TLC5973 q_delta02_bvs225.gif
Ideal current is calculated by the formula:
TLC5973 q_iout_ideal_bvs225.gif
, where n = 0 to 2.
(3) Line regulation is calculated by the formula:
TLC5973 q_line_bvs225.gif
, where n = 0 to 2.
(4) Load regulation is calculated by the equation:
TLC5973 q_load_bvs225.gif
, where n = 0 to 2.

6.6 Switching Characteristics

At TA = –40°C to 85°C, VCC = 3.0 V to 5.5 V, CL = 15 pF, RL = 110 Ω, and VLED = 5.0 V, unless otherwise noted.
Typical values are at TA = 25°C and VCC = 5.0 V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tR0 Rise time SDO 2 6 12 ns
tR1 OUTn (on → off) 200 400 ns
tF0 Fall time SDO 2 6 12 ns
tF1 OUTn (off → on) 200 400 ns
tD0 Propagation delay SDI↑ to SDO↑ 30 50 ns
tD1 OUT0↓ to OUT1↓, OUT1↓to OUT2↓,
OUT0↑ to OUT1↑, OUT1↑to OUT2↑		 25 ns
tWO Shift data output one pulse duration SDO↑ to SDO↓ 15 25 45 ns
fOSC Internal GS oscillator frequency 8 12 16 MHz

6.7 Typical Characteristics

At TA = 25°C and VCC = 12 V, unless otherwise noted.
TLC5973 C001_SBVS225.png
Figure 1. Reference Resistance vs Output Current (OUTn)
TLC5973 C002_SBVS225.png
VCC = 5 V
Figure 2. Output Current vs Output Voltage (OUTn)