SBVS237 March   2014 TLC5955

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Terminal Configurations 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 Terminal-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 Output Current Calculation
      2. 8.3.2 Register and Data Latch Configuration
        1. 8.3.2.1 769-Bit Common Shift Register
        2. 8.3.2.2 Grayscale (GS) Data Latch
        3. 8.3.2.3 Control Data Latch
        4. 8.3.2.4 Dot Correction (DC) Data Latch
        5. 8.3.2.5 Maximum Current (MC) Data Latch
        6. 8.3.2.6 Global Brightness Control (BC) Data Latch
        7. 8.3.2.7 Function Control (FC) Data Latch
      3. 8.3.3 Status Information Data (SID)
      4. 8.3.4 LED Open Detection (LOD)
      5. 8.3.5 LED Short Detection (LSD)
      6. 8.3.6 Noise Reduction
    4. 8.4 Device Functional Modes
      1. 8.4.1 Maximum Current Control (MC) Function
      2. 8.4.2 Dot Correction (DC) Function
      3. 8.4.3 Global Brightness Control (BC) Function
      4. 8.4.4 Grayscale (GS) Function (PWM Control)
        1. 8.4.4.1 Conventional PWM Control
        2. 8.4.4.2 Enhanced Spectrum (ES) PWM Control
        3. 8.4.4.3 Auto Display Repeat Function
        4. 8.4.4.4 Display Timing Reset Function
        5. 8.4.4.5 Auto Data Refresh Function
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Daisy-Chain Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Step-by-Step Design Procedure
          2. 9.2.1.2.2 Maximum Current (MC) Data
          3. 9.2.1.2.3 Global Brightness Control (BC) Data
          4. 9.2.1.2.4 Dot Correction (DC) Data
          5. 9.2.1.2.5 Grayscale (GS) Data
          6. 9.2.1.2.6 Other Control Data
        3. 9.2.1.3 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 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 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
VCC Voltage(2) Supply –0.3 +6.0 V
VIN Input range SIN, SCLK, LAT, GSCLK –0.3 VCC + 0.3 V
VOUT Output range SOUT –0.3 VCC + 0.3 V
OUTR0 to OUTR15, OUTG0 to OUTG15, OUTB0 to OUTB15 –0.3 +11 V
TJ (max) Maximum operating junction temperature +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 device ground terminal.

6.2 Handling Ratings

MIN MAX UNIT
TSTG Storage temperature range –55 +150 °C
VESD(1) Human body model (HBM) ESD stress voltage(2) 4000 V
Charged device model (CDM) ESD stress voltage(3) 2000 V
(1) Electrostatic discharge (ESD) to measure device sensitivity and immunity to damage caused by assembly line electrostatic discharges in to the device.
(2) Level listed above is the passing level per ANSI, ESDA, and JEDEC JS-001. JEDEC document JEP155 states that 4000-V HBM allows safe manufacturing with a standard ESD control process.
(3) Level listed above is the passing level per EIA-JEDEC JESD22-C101. JEDEC document JEP157 states that 2000-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 3.0 5.5 V
VO Voltage applied to output OUTX0 to OUTX15(2) 10 V
VIH High-level input voltage SIN, SCLK, LAT, GSCLK 0.7 × VCC VCC V
VIL Low-level input voltage SIN, SCLK, LAT, GSCLK GND 0.3 × VCC V
IOH High-level output current SOUT –2 mA
IOL Low-level output current SOUT 2 mA
IOLC Constant output sink current OUTX0 to OUTX15(2), 3 V ≤ VCC ≤ 3.6 V 23.9 mA
OUTX0 to OUTX15(2), 3.6 V < VCC ≤ 5.5 V 31.9 mA
TA Operating free-air temperature range –40 +85 °C
TJ Operating junction temperature range –40 +125 °C
AC CHARACTERISTICS
fCLK (SCLK) Data shift clock frequency SCLK 25 MHz
fCLK (GSCLK) Grayscale control clock frequency GSCLK 33 MHz
tWH0 Pulse duration SCLK 10 ns
tWL0 SCLK 10 ns
tWH1 GSCLK 10 ns
tWL1 GSCLK 10 ns
tWH2 LAT 30 ns
tSU0 Setup time SIN to SCLK↑ 5 ns
tSU1 LAT↓ to SCLK↑ (auto data refresh is disabled(1)) 30 ns
tSU2 LAT↑ for GS data written to GSCLK↑ when display time reset mode is disabled 50 ns
tSU3 LAT↑ for GS data written to GSCLK↑ when display time reset mode is enabled 70 ns
tH0 Hold time SCLK↑ to SIN 2 ns
tH1 SCLK↑ to LAT↑ 5 ns
(1) When auto data refresh is enabled, the first SCLK rising edge after the LAT signal input must be input after the first GSCLK is input.
(2) X = R, G, or B.

6.4 Thermal Information

THERMAL METRIC(1) DCA (HTSSOP) RTQ (QFN) UNIT
56 TERMINALS 56 TERMINALS
θJA Junction-to-ambient thermal resistance 32.2 27.9 °C/W
θJCtop Junction-to-case (top) thermal resistance 16.8 14.9
θJB Junction-to-board thermal resistance 16.1 6.5
ψJT Junction-to-top characterization parameter 0.8 0.3
ψJB Junction-to-board characterization parameter 16.0 6.4
θJCbot Junction-to-case (bottom) thermal resistance 0.9 2.0
(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 and VCC = 3 V to 5.5 V, unless otherwise noted. Typical values at TA = +25°C and VCC = 3.3 V.
PARAMETER CONDITION MIN TYP MAX UNIT
VOH High-level output voltage (SOUT) IOH = –2 mA VCC – 0.4 VCC V
VOL Low-level output voltage (SOUT) IOL = 2 mA 0.4 V
IIN Input current
(SIN, SCLK, LAT, GSCLK)		 VIN = VCC or GND –1 1 μA
ICC0 Supply current (VCC) SIN, SCLK, and LAT = GND, all OUTXn = off,
GSCLK = GND, GSXn = 0000h, DCXn and BCX = 7Fh, VOUTXn = 0.8 V, MCX = 0 (3.2-mA target)(1)(2)		 15 20 mA
ICC1 SIN, SCLK, and LAT = GND, all OUTXn = off,
GSCLK = GND, GSXn = 0000h, DCXn and BCX = 7Fh, VOUTXn = 0.8 V, MCX = 4 (19.1-mA target)		 16 22 mA
ICC2 SIN, SCLK, and LAT = GND, auto display repeat enabled, GSCLK = 33 MHz, GSXn = FFFFh, DCXn and BCX = 7Fh, VOUTXn = 0.8 V, MCX = 4 (19.1-mA target) 18 26 mA
ICC3 VCC = 5.0 V, SIN, SCLK, and LAT = GND, auto display repeat enabled, GSCLK = 33 MHz, GSXn = FFFFh, DCXn and BCX = 7Fh, VOUTXn = 0.8 V, MCX = 7
(31.9-mA target)		 20 29 mA
IOLC0 Constant output sink current
(OUTX0 to OUTX15)		 All OUTXn = on, DCXn and BCX = 7Fh,
VOUTXn = VOUTfix = 0.8 V, MCX = 4		 17.4 19.1 20.8 mA
IOLC1 VCC = 5.0 V, all OUTXn = on, DCXn and BCX = 7Fh, VOUTXn = VOUTfix = 0.8 V, MCX = 7 29.1 31.9 34.7 mA
IOLKG0 Output leakage current
(OUTX0 to OUTX15)		 All OUTn = off,
VOUTXn = VOUTfix = 10 V,
MCX = 7		 TJ = +25°C 0.1 μA
IOLKG1 TJ = +85°C 0.2 μA
IOLKG2 TJ = +125°C 0.3 0.8 μA
ΔIOLC0 Constant-current error
(channel-to-channel, OUTX0 to OUTX15)(3)		 All OUTXn = on, DCXn and BCX = 7Fh,
VOUTXn = VOUTfix = 0.8 V, MCX = 4		 ±2% ±5%
ΔIOLC1 Constant-current error
(device-to-device, OUTX0 to OUTX15)(4)		 All OUTXn = on, DCXn and BCX = 7Fh,
VOUTXn = VOUTfix = 0.8 V, MCX = 4		 ±2% ±4%
ΔIOLC2 Line regulation
(OUTx0 to OUTx15)(5)		 VCC = 3.0 V to 5.5 V, all OUTXn = on,
DCXn and BCX = 7Fh, VOUTXn = VOUTfix = 0.8 V,
MCX = 4		 ±0.1 ±1 %/V
ΔIOLC3 Load regulation
(OUTx0 to OUTx15)(6)		 All OUTXn = on, DCXn and BCX = 7Fh,
VOUTXn = 0.8 V to 3.0 V, VOUTfix = 0.8 V, MCX = 4		 ±0.1 ±1 %/V
VLOD LED open-detection threshold All OUTXn = on 0.25 0.30 0.35 V
VLSD0 LED short-detection threshold All OUTXn = on, LSDVLT = 0 0.65 × VCC 0.70 × VCC 0.75 × VCC V
VLSD1 All OUTXn = on, LSDVLT = 1 0.85 × VCC 0.90 × VCC 0.95 × VCC V
(1) X = R, G, or B. For example, MCX = MCR, MCG, and MCG.
(2) n = 0 to 15.
(3) The deviation of each output from the OUTX0 to OUTX15 constant-current average of the same color group. Deviation is calculated by the formula:
q_delta01_bvs237.gif
where X = R, G, or B; n = 0 to 15.
(4) Deviation of the OUTX0 to OUTX15 constant-current average from the ideal constant-current value.
Deviation is calculated by the formula:
q_delta02_bvs237.gif
where X = R, G, or B; n = 0 to 15.
Ideal current is the target current when MC is 4.
(5) Line regulation is calculated by the formula:
q_line_bvs237.gif
where X = R, G, or B; n = 0 to 15.
(6) Load regulation is calculated by the equation:
q_load_bvs237.gif
where X = R, G, or B; n = 0 to 15.

6.6 Switching Characteristics

At TA = –40°C to +85°C, VCC = 3 V to 5.5 V, CL = 15 pF, RL = 120 Ω, MCX = 7, and VLED = 4.5 V, unless otherwise noted. Typical values at TA = +25°C and VCC = 3.3 V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tR0 Rise time SOUT 3 5 ns
tR1 OUTXn, VCC = 3.6 V, DCXn, and BCX = 7Fh, TA = +25°C(2) 30 ns
tF0 Fall time SOUT 3 5 ns
tF1 OUTXn, VCC = 3.6 V, DCXn, and BCX = 7Fh, TA = +25°C 40 ns
tD0 Propagation delay SCLK↑ to SOUT↑↓ 20 30 ns
tD1 VCC = 3.6 V, GSCLK = 33 MHz, DCXn and BCX = 7Fh, TA = +25°C GSCLK↑ to OUTX4 and
OUTX11 on or off		 40 ns
tD2 GSCLK↑ to OUTX0 and
OUTX15 on or off		 43 ns
tD3 GSCLK↑ to OUTX5 and
OUTX10 on or off		 46 ns
tD4 GSCLK↑ to OUTX1 and
OUTX14 on or off		 49 ns
tD5 GSCLK↑ to OUTX2 and
OUTX13 on or off		 52 ns
tD6 GSCLK↑ to OUTX6 and
OUTX9 on or off		 55 ns
tD7 GSCLK↑ to OUTX3 and
OUTX12 on or off		 58 ns
tD8 GSCLK↑ to OUTX7 and
OUTX8 on or off		 61 ns
tON_ERR Output on-time error(1) tOUTON – tGSCLK, VCC = 3.6 V to 5.5 V, GSXn = 0001h,
GSCLK = 33 MHz, DCXn and BCX = 7Fh		 –20 20 ns
(1) Output on-time error (tON_ERR) is calculated by the formula: tON_ERR = tOUT_ON – tGSCLK. tOUTON is the actual on-time of the constant-current driver. tGSCLK is the GSCLK period.
(2) X = R, G, or B; n = 0 to 15.

6.7 Typical Characteristics

At TA = +25°C and VCC = 5.0 V, unless otherwise noted.
C001_SBVS237.png
BCX = DCXn = 7Fh
Figure 1. Output Current vs Output Voltage
(MCX Changing)
C003_SBVS237.png
BCX = DCXn = 7Fh
Figure 3. Output Current vs Output Voltage
(BCX Changing)
C005_SBVS237.png
BCX = DCXn = 7Fh VOUTXn = 0.8 V
Figure 5. Constant-Current Error vs Output Current (Channel-to-Channel in Each Color Group)
C007_SBVS237.png
BCX = 7Fh VOUTXn = 0.8 V
Figure 7. Dot Correction (DC) Linearity
C009_SBVS237.png
BCX = DCXn = 7Fh SIN = 12.5 MHz SCLK = 25 MHz
GSCLK = 33 MHz VOUT = 0.8 V GSXn = FFFFh
Figure 9. Supply Current vs Output Current
Scope_01_SBVS237.gif
MCX = 7 BCX = DCXn = 7Fh GSCLK = 33 MHz
VLED = 4.5 V RL = 120 Ω GSXn = 0001h
Figure 11. Constant-Current Output Voltage Waveform
C002_SBVS237.png
BCX = DCXn = 7Fh
Figure 2. Output Current vs Output Voltage
(DCXn Changing)
C004_SBVS237.png
BCX = DCXn = 7Fh
Figure 4. Output Current vs Output Voltage (Temperature Changing)
C006_SBVS237.png
MCX = 4 BCX = DCXn = 7Fh VOUTXn = 0.8 V
Figure 6. Constant-Current Error vs Ambient Temperature (Channel-to-Channel in Each Color Group)
C008_SBVS237.png
DCXn = 7Fh VOUTXn = 0.8 V
Figure 8. Global Brightness Control (BC) Linearity
C010_SBVS237.png
MCX = 4 BCX = DCXn = 7Fh SIN = 12.5 MHz
SCLK = 25 MHz GSCLK = 33 MHz VOUT = 0.8 V
GSXn = FFFFh
Figure 10. Supply Current vs Ambient Temperature