SBVS241 April   2014 TLC5954

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 Output Current Calculation
      2. 8.3.2 Status Information Data (SID)
      3. 8.3.3 LED Open Detection (LOD)
      4. 8.3.4 LED Short Detection (LSD)
      5. 8.3.5 Noise Reduction
    4. 8.4 Device Functional Modes
      1. 8.4.1 Maximum Constant Sink Current
      2. 8.4.2 Global Brightness Control (BC) Function: Sink Current Control
      3. 8.4.3 Constant-Current Output On or Off Control
      4. 8.4.4 Power-Save Mode
    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 or Off Data Latch
        3. 8.5.1.3 Maximum Current Control (MC), Global Brightness Control (BC), and Function Control (FC) Data Latch
  9. 9 Applications 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
        1. 9.2.2.1 Step-by-Step Design Procedure
        2. 9.2.2.2 Maximum Current (MC) Data
        3. 9.2.2.3 Global Brightness Control (BC) Data
        4. 9.2.2.4 On or Off Data
        5. 9.2.2.5 Other Control Data
        6. 9.2.2.6 Grayscale Control
      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 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

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VCC Supply voltage(2) –0.3 4.0 V
VIN Input voltage range SIN, SCLK, LAT, BLANK –0.3 VCC + 0.3 V
VOUT Output voltage range SOUT –0.3 VCC + 0.3 V
OUTR0 to OUTR15, OUTG0 to OUTG15,
OUTB0 to OUTB15		 –0.3 11 V
TJ (max) 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 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) –200 2000 V
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) –500 500 V
(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

At TA= –40°C to +85°C, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
DC CHARACTERISTICS (VCC = 3 V to 3.6 V)
VCC Supply voltage 3.0 3.6 V
VO Voltage applied to output OUTR0 to OUTR15, OUTG0 to OUTG15, OUTB0 to OUTB15 10 V
VIH High-level input voltage SIN, SCLK, LAT, BLANK 0.7 × VCC VCC V
VIL Low-level input voltage SIN, SCLK, LAT, BLANK GND 0.3 × VCC V
IOH High-level output current SOUT –2 mA
IOL Low-level output current SOUT 2 mA
TA Operating free-air temperature range –40 +85 °C
TJ Operating junction temperature range –40 +125 °C
AC CHARACTERISTICS (VCC = 3 V to 3.6 V)
fCLK (SCLK) Data shift clock frequency SCLK 30 MHz
tWH0 Pulse duration SCLK 10 ns
tWL0 SCLK 10 ns
tWH1 LAT 15 ns
tWH2 BLANK 60 ns
tWL2 BLANK 40 ns
tSU0 Setup time SIN to SCLK↑ 4 ns
tSU1 LAT↓ to SCLK↑ 20 ns
tSU2 SCLK↑ resumes normal mode, BLANK↓, PSMODE bit = 01b 12 µs
tSU3 LAT↑ for all data latching except all 0s resumes normal mode, BLANK↓, PSMODE bit = 10b 12 µs
tH0 Hold time SCLK↑ to SIN 3 ns
tH1 SCLK↑ to LAT↑ 10 ns

6.4 Thermal Information

THERMAL METRIC(1) TLC5954 UNIT
RTQ (VQFN)
56 PINS
RθJA Junction-to-ambient thermal resistance 29.1 °C/W
RθJCtop Junction-to-case (top) thermal resistance 16.3
RθJB Junction-to-board thermal resistance 7.7
ψJT Junction-to-top characterization parameter 0.3
ψJB Junction-to-board characterization parameter 7.7
RθJCbot Junction-to-case (bottom) thermal resistance 2.8
(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 = 3.0 V to 3.6 V, unless otherwise noted. Typical values are at TA = +25°C and VCC = 3.3 V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VOH High-level output voltage IOH = –2 mA at SOUT VCC – 0.4 VCC V
VOL Low-level output voltage IOL = 2 mA at SOUT 0.4 V
VLOD0 LED open-detection threshold LODVLT = 000b 0.15 0.20 0.25 V
VLOD1 LODVLT = 001b, 101b, 110b, 111b 0.25 0.30 0.35 V
VLOD2 LODVLT = 010b 0.35 0.40 0.45 V
VLOD3 LODVLT = 011b 0.45 0.50 0.55 V
VLOD4 LODVLT = 100b 0.55 0.60 0.65 V
VLSD0 LED short-detection threshold LSDVLT = 00b 0.45 × VCC 0.50 × VCC 0.55 × VCC V
VLSD1 LSDVLT = 01b 0.65 × VCC 0.70 × VCC 0.75 × VCC V
VLSD2 LSDVLT = 10b, 11b 0.85 × VCC 0.90 × VCC 0.95 × VCC V
IIN Input current VIN = VCC or GND at SIN, SCLK, LAT, and BLANK –1 1 μA
ICC0 Supply current (VCC) SIN, SCLK, LAT = GND, BLANK = VCC, VOUTXn = 1 V, BCX = 7Fh, MC = 0h (IOUTRn, IOUTGn = 2.9-mA target, IOUTBn = 2.0-mA target)(5) 15 19 mA
ICC1 SIN, SCLK, LAT = GND, BLANK = VCC, VOUTXn = 1 V, BCX = 7Fh, MC = 5h (IOUTRn, IOUTGn = 17.4-mA target, IOUTBn = 12.2-mA target) 17.5 22 mA
ICC2 SIN, SCLK, LAT, BLANK = GND, all OUTXn = on, VOUTXn = 1 V, BCX = 7Fh, MC = 5h 17.5 22 mA
ICC3 SIN, SCLK, LAT, BLANK = GND, all OUTXn = on, VOUTXn = 1 V, BCX = 7Fh, MC = 7h (IOUTRn, IOUTGn = 34.9-mA target, IOUTBn = 24.4-mA target) 20.5 25.5 mA
ICC4 In power-save mode, SIN, SCLK, LAT = GND,
BLANK = VCC		 7 60 µA
IOLC0 Constant output current All OUTXn = on, VOUTXn = VOUTfix = 1 V, BC = 7Fh,
MC = 7h, at OUTR0 to OUTR15 and OUTG0 to OUTG15		 32.5 34.9 37.3 mA
IOLC1 All OUTXn = on, VOUTXn = VOUTfix = 1 V, BC = 7Fh,
MC = 7h, at OUTB0 to OUTB15		 22.7 24.4 26.1 mA
IOLKG Output leakage current BLANK = VCC, VOUTXn = VOUTfix = 10 V, MC = 7h, at OUTXn TJ = +25°C 0.1 µA
TJ = +85°C 0.2 µA
TJ = +125°C 0.5 µA
ΔIOLC0 Constant-current error
(channel-to-channel)(1)		 All OUTXn = on, BCX = 7Fh, VOUTXn = VOUTfix = 1 V, MC = 7h, at same color group (OUTXn) ±1% ±3%
ΔIOLC1 Constant-current error
(device-to-device)(2)		 All OUTXn = on, BCX = 7Fh, VOUTXn = VOUTfix = 1 V, MC = 7h, at same color group (OUTXn) ±0.5% ±3%
ΔIOLC2 Line regulation(3) All OUTXn = on, BCX = 7Fh, VOUTXn = VOUTfix = 1 V, MC = 7h, at OUTXn ±0.5 ±1 %/V
ΔIOLC3 Load regulation(4) All OUTXn = on, BCX = 7Fh, VOUTXn = 1 V to 3 V, VOUTfix = 1 V, MC = 7h, at OUTXn ±1 ±3 %/V
(1) The deviation of each output in the same color group (OUTRn, OUTGn, OUTBn) from the average of the same OUTXn group constant-current. Deviation is calculated by the formula:
q_delta01_bvs241.gif
, where X = R, G, or B, and n = 0 to 15.
(2) The deviation of the OUTXn constant-current average from the ideal constant-current value. Deviation is calculated by the formula:
q_delta02_bvs241.gif
Ideal current is 34.9 mA for OUTRn and OUTGn. Ideal current is 24.4 mA for OUTBn with MC data equal to 7h.
, where X = R, G, or B, and n = 0 to 15.
(3) Line regulation is calculated by the formula:
q_line_bvs241.gif
X = R, G, or B. n = 0 to 15.
(4) Load regulation is calculated by the equation:
q_load_bvs241.gif
, where X = R, G, or B, and n = 0 to 15.
(5) X = R, G, and B. n = 0 to 15.

6.6 Switching Characteristics

At TA = –40°C to +85°C, VCC = 3.0 V to 3.6 V, CL = 15 pF, RL = 100 Ω for OUTRn and OUTGn, RL = 150 Ω for OUTBn,
MC = 7h, 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 2 5 ns
tR1 OUTXn, BCX = 7Fh(3) 20 50 ns
tF0 Fall time SOUT 2 5 ns
tF1 OUTXn, BCX = 7Fh 20 50 ns
tD0 Propagation delay(1) SCLK↑ to SOUT 13 23 ns
tD1 LAT↑ to OUTR0 on to off or OUTR0 off to on, BCX = 7Fh 30 60 ns
tD2 BLANK↓↑ to OUTR0 on to off or OUTR0 off to on, BCX = 7Fh 30 60 ns
tD3 OUTRn on to OUTGn on, OUTGn on to OUTBn on, and OUTBn on to the next OUTRn on, BCX = 7Fh 1.5 5 ns
tD4 OUTRn off to OUTGn off, OUTGn off to OUTBn off, and OUTBn off to the next OUTRn off, BCX = 7Fh 1.5 5 ns
tD5 LAT↑ to power-save mode by writing data for all OUTXn off 150 300 ns
tON_ERR Output on-time error(2) OUTXn on or off data = all 1s, BCX = 7Fh, 40-ns BLANK low-level one-shot pulse input –35 35 ns
(1) tD3 (OUTRn on to OUTGn on, OUTGn on to OUTBn on, and OUTBn on to the next OUTRn on) and tD4 (OUTRn off to OUTGn off, OUTGn off to OUTBn off, and OUTBn off to the next OUTRn off) are calculated by:
tD3 (ns) = (the propagation delay between OUTR0 on to OUTB7 on) / 47 and
tD4 (ns) = (the propagation delay between OUTR0 off to OUTB7 off) / 47.
(2) Output on-time error (tON_ERR) is calculated by the formula: tON_ERR (ns) = tOUT_ON – BLANK low-level pulse duration.
tOUT_ON is the actual on-time of OUTXn.
(3) X = R, G, or B. n = 0 to 15.

6.7 Typical Characteristics

At TA = +25°C and VCC = 3.3 V, unless otherwise noted.
D001_SBVS241.gif
BCR, BCG = 7Fh
Figure 1. Output Current vs Output Voltage
(OUTRn, OUTGn)
D003_SBVS241.gif
BCR = BCG = 7Fh MC = 7
Figure 3. Output Current vs Output Voltage
(OUTRn, OUTGn)
D005_SBVS241.gif
BCR = 7Fh MC = 7
Figure 5. Constant-Current Error vs Output Current (Channel-to-Channel, OUTRn)
D007_SBVS241.gif
BCB = 7Fh MC = 7
Figure 7. Constant-Current Error vs Output Current (Channel-to-Channel, OUTBn)
D009_SBVS241.gif
BCG = 7Fh MC = 7h
Figure 9. Constant-Current Error vs Ambient Temperature (Channel-to-Channel, OUTGn)
D011_SBVS241.gif
BCR = BCG = 7Fh
Figure 11. Global Brightness Control Linearity
(OUTRn, OUTGn)
D013_SBVS241.gif
SIN = 15 MHz SCLK = 30 MHz BCX = 7Fh
MC = 0h to 7h All OUTXn = On BLANK = Low
SOUT = No Load VOUT = 0.8 V
Figure 13. Supply Current vs Output Current
figure15_sbvs241.gif
VCC = 3.3 V MC = 7h BCX = 7Fh VLED = 4.5 V
RL = 100 Ω (OUTRn, OUTGn) RL = 150 Ω (OUTBn)
CL = 15 pF BLANK Low Pulse Duration = 40 ns
Figure 15. Constant-Current Output Voltage Waveform
D002_SBVS241.gif
BCB = 7Fh
Figure 2. Output Current vs Output Voltage
(OUTBn)
D004_SBVS241.gif
BCB = 7Fh MC = 7
Figure 4. Output Current vs Output Voltage
(OUTBn)
D006_SBVS241.gif
BCG = 7Fh MC = 7
Figure 6. Constant-Current Error vs Output Current (Channel-to-Channel, OUTGn)
D008_SBVS241.gif
BCR = 7Fh MC = 7h
Figure 8. Constant-Current Error vs Ambient Temperature (Channel-to-Channel, OUTRn)
D010_SBVS241.gif
BCB = 7Fh MC = 7
Figure 10. Constant-Current Error vs Ambient Temperature (Channel-to-Channel, OUTBn)
D012_SBVS241.gif
BCB = 7Fh
Figure 12. Global Brightness Control Linearity
(OUTBn)
D014_SBVS241.gif
SIN = 15 MHz BCX = 7Fh MC = 5h
All OUTXn = On SCLK = 30 MHz BLANK = Low
SOUT = No Load VOUT = 0.8 V
TA = –40°C to +85°C
Figure 14. Supply Current vs Ambient Temperature