SLVS973A September   2009  – July 2015 TLC5926-Q1 , TLC5927-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics: VDD = 3 V
    6. 7.6  Electrical Characteristics: VDD = 5.5 V
    7. 7.7  Timing Requirements
    8. 7.8  Switching Characteristics: VDD = 3 V
    9. 7.9  Switching Characteristics: VDD = 5.5 V
    10. 7.10 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Open-Circuit Detection Principle
      2. 9.3.2 Short-Circuit Detection Principle (TLC5927-Q1 Only)
      3. 9.3.3 Overtemperature Detection and Shutdown
    4. 9.4 Device Functional Modes
      1. 9.4.1 Operation Mode Switching
      2. 9.4.2 Normal Mode Phase
      3. 9.4.3 Special Mode Phase
        1. 9.4.3.1 Reading Error Status Code in Special Mode
        2. 9.4.3.2 Writing Configuration Code in Special Mode
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Constant Current
      2. 10.1.2 Adjusting Output Current
      3. 10.1.3 16-Bit Configuration Code and Current Gain
    2. 10.2 Typical Applications
      1. 10.2.1 Single Implementation of TLC5926/TLC5927-Q1 Device
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curve
      2. 10.2.2 Cascading Implementation of TLC5926/ TLC5927-Q1 Device
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Community Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VDD(2)(3)(4) Supply voltage 0 7 V
VI(2)(5) Input voltage –0.4 VDD + 0.4 V
VO(2)(6)(7) Output voltage –0.5 20 V
IOUT Output current 120 mA
IGND GND terminal current 1920 mA
TA Free-air operating temperature –40 125 °C
TJ Operating junction temperature –40 150 °C
Tstg Storage temperature –55 150 °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 may affect device reliability.
(2) All voltage values are with respect to GND.
(3) Absolute negative voltage on these terminals not to go below 0 V
(4) Absolute maximum voltage 7 V for 200 ms
(5) Absolute negative voltage on these terminals not to go below –0.4 V
(6) Absolute negative voltage on these terminals not to go below –0.5 V
(7) Absolute maximum voltage 20 V for 200 ms

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per AEC Q100-002(1) ±2000 V
(1) AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VDD Supply voltage 3 5.5 V
VO Supply voltage to the output pins OUT0–OUT15 17 V
IO Output current DC test circuit VO ≥ 0.6 V 5 mA
VO ≥ 1 V 120
IOH High-level output current SDO shorted to GND –1 mA
IOL Low-level output current SDO shorted to GND 1 mA
VIH High-level input voltage CLK, OE(ED2), LE(ED1), and SDI 0.7 × VDD VDD V
VIL Low-level input voltage CLK, OE(ED2), LE(ED1), and SDI 0 0.3 × VDD V

7.4 Thermal Information

THERMAL METRIC(1)(2) TLC592x-Q1 UNIT
PWP (HTSSOP)
24 PINS
RθJA Junction-to-ambient thermal resistance Mounted on JEDEC 1-layer board (JESD 51-3), No airflow 63.9 °C/W
Mounted on JEDEC 4-layer board (JESD 51-7), No airflow 42.7
Mounted on JEDEC 4-layer board (JESD 51-5), No airflow 39.7
RθJC(top) Junction-to-case (top) thermal resistance 23.4 °C/W
RθJB Junction-to-board thermal resistance 20.4 °C/W
ψJT Junction-to-top characterization parameter 0.7 °C/W
ψJB Junction-to-board characterization parameter 20.2 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 3.9 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.
(2) The thermal data is based on JEDEC standard high-K profile – JESD 51-5. The copper pad is soldered to the thermal land pattern. Also, correct attachment procedure must be incorporated.

7.5 Electrical Characteristics: VDD = 3 V

VDD = 3 V, TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VO Supply voltage to the output pins 17 V
IO Output current VO ≥ 0.6 V 5 mA
VO ≥ 1 V 120
VIH High-level input voltage 0.7 × VDD VDD V
VIL Low-level input voltage GND 0.3 × VDD
Ileak Output leakage current TLC5926-Q1, VOH = 17 V TJ = 25°C 0.5 μA
TJ = 125°C 1
TLC5927-Q1, VOH = 17 V TJ = 25°C 0.5
TJ = 125°C 5
VOH High-level output voltage SDO, IOL = –1 mA VDD – 0.4 V
VOL Low-level output voltage SDO, IOH = 1 mA 0.4 V
IO(1)(2) Output current 1 VOUT = 0.6 V, Rext = 720 Ω, CG = 0.992 26 mA
Output current error, die-to-die IOL = 26 mA, VO = 0.6 V, Rext = 720 Ω, TJ = 25°C ±6%
Output current error, channel-to-channel IOL = 26 mA, VO = 0.6 V, Rext = 720 Ω, TJ = 25°C ±6%
IO(1)(2) Output current 2 VO = 0.8 V, Rext = 360 Ω, CG = 0.992 52% mA
Output current error, die-to-die IOL = 52 mA, VO = 0.8 V, Rext = 360 Ω, TJ = 25°C ±6%
Output current error, channel-to-channel IOL = 52 mA, VO = 0.8 V, Rext = 360 Ω, TJ = 25°C ±6%
IOUT vs VOUT Output current vs output voltage regulation VO = 1 V to 3 V, IO = 26 mA ±0.1 %/V
IOUT vs VDD Output current vs supply voltage VDD = 3 V to 5.5 V, IO = 26 mA/120 mA ±1
Pullup resistance OE(ED2) 250 500 800 kΩ
Pulldown resistance LE(ED1) 250 500 800 kΩ
Tsd Overtemperature shutdown(2) 150 175 200 °C
Thys Restart temperature hysteresis 15 °C
IOUT,Th Threshold current for open error detection IOUT,target = 5 mA to 120 mA 0.5 × Itarget%
VOUT,TTh Trigger threshold voltage for short-error detection (TLC5927 only) IOUT,target = 5 mA to 120 mA 2.3 2.6 3.2 V
VOUT,RTh Return threshold voltage for short-error detection (TLC5927 only) IOUT,target = 5 mA to 120 mA 1.9 V
IDD Supply current OUT0–OUT15 = off, Rext = Open, OE = VIH 10 mA
OUT0–OUT15 = off, Rext = 720 Ω, OE = VIH 14
OUT0–OUT15 = off, Rext = 360 Ω, OE = VIH 18
OUT0–OUT15 = off, Rext = 180 Ω, OE = VIH 20
OUT0–OUT15 = on, Rext = 720 Ω, OE = VIL 14
OUT0–OUT15 = on, Rext = 360 Ω, OE = VIL 18
OUT0–OUT15 = on, Rext = 180 Ω, OE = VIL 20
(1) Typical values represent the likely parametric nominal values determined at the time of characterization. Typical values depend on the application and configuration and may vary over time. Typical values are not ensured on production material.
(2) Specified by design

7.6 Electrical Characteristics: VDD = 5.5 V

VDD = 5.5 V, TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VO Supply voltage to the output pins 17 V
IO Output current VO ≥ 0.6 V 5 mA
VO ≥ 1 V 120
VIH High-level input voltage 0.7 × VDD VDD V
VIL Low-level input voltage GND 0.3 × VDD
Ileak Output leakage current TLC5926, VOH = 17 V TJ = 25°C 0.5 μA
TJ = 125°C 1
TLC5927, VOH = 17 V TJ = 25°C 0.5
TJ = 125°C 5
VOH High-level output voltage SDO, IOL = –1 mA VDD – 0.4 V
VOL Low-level output voltage SDO, IOH = 1 mA 0.4 V
IO(1)(1)(1) Output current 1 VOUT = 0.6 V, Rext = 720 Ω, CG = 0.992 26 mA
Output current error, die-to-die IOL = 26 mA, VO = 0.6 V, Rext = 720 Ω, TJ = 25°C ±6%
Output current error, channel-to-channel IOL = 26 mA, VO = 0.6 V, Rext = 720 Ω, TJ = 25°C ±6%
IO(2)(1)(2) Output current 2 VO = 0.8 V, Rext = 360 Ω, CG = 0.992 52 mA
Output current error, die-to-die IOL = 52 mA, VO = 0.8 V, Rext = 360 Ω, TJ = 25°C ±6%
Output current error, channel-to-channel IOL = 52 mA, VO = 0.8 V, Rext = 360 Ω, TJ = 25°C ±6%
IOUT vs VOUT Output current vs output voltage regulation VO = 1 V to 3 V, IO = 26 mA ±0.1 %/V
IOUT vs VDD Output current vs supply voltage VDD = 3 V to 5.5 V, IO = 26 mA/120 mA ±1
Pullup resistance OE(ED2) 250 500 800 kΩ
Pulldown resistance LE(ED1) 250 500 800 kΩ
Tsd Overtemperature shutdown(2) 150 175 200 °C
Thys Restart temperature hysteresis 15 °C
IOUT,Th Threshold current for open error detection IOUT,target = 5 mA to 120 mA 0.5 × Itarget%
VOUT,TTh Trigger threshold voltage for short-error detection (TLC5927 only) IOUT,target = 5 mA to 120 mA 2.3 2.6 3.2 V
VOUT,RTh Return threshold voltage for short-error detection (TLC5927 only) IOUT,target = 5 mA to 120 mA 1.9 V
IDD Supply current OUT0–OUT15 = off, Rext = Open, OE = VIH 11 mA
OUT0–OUT15 = off, Rext = 720 Ω, OE = VIH 17
OUT0–OUT15 = off, Rext = 360 Ω, OE = VIH 18
OUT0–OUT15 = off, Rext = 180 Ω, OE = VIH 25
OUT0–OUT15 = on, Rext = 720 Ω, OE = VIL 17
OUT0–OUT15 = on, Rext = 360 Ω, OE = VIL 18
OUT0–OUT15 = on, Rext = 180 Ω, OE = VIL 25
(1) Typical values represent the likely parametric nominal values determined at the time of characterization. Typical values depend on the application and configuration and may vary over time. Typical values are not ensured on production material.
(2) Specified by design

7.7 Timing Requirements

VDD = 3 V to 5.5 V (unless otherwise noted)
MIN MAX UNIT
tw(L) LE(ED1) pulse duration Normal mode 20 ns
tw(CLK) CLK pulse duration Normal mode 20 ns
tw(OE) OE(ED2) pulse duration Normal mode 1000 ns
tsu(D) Setup time for SDI Normal mode 7 ns
th(D) Hold time for SDI Normal mode 3 ns
tsu(L) Setup time for LE(ED1) Normal mode 18 ns
th(L) Hold time for LE(ED1) Normal mode 18 ns
tw(CLK) CLK pulse duration Error Detection mode 20 ns
tw(ED2) OE(ED2) pulse duration Error Detection mode 2000 ns
tsu(ED1) Setup time for LE(ED1) Error Detection mode 7 ns
th(ED1) Hold time for LE(ED1) Error Detection mode 10 ns
tsu(ED2) Setup time for OE(ED2) Error Detection mode 7 ns
th(ED2) Hold time for OE(ED2) Error Detection mode 10 ns
fCLK Clock frequency Cascade operation, VDD = 3 V to 5.5 V 30 MHz

7.8 Switching Characteristics: VDD = 3 V

VDD = 3 V, TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tPLH1 Low-to-high propagation delay time, CLK to OUTn VIH = VDD, VIL = GND, Rext = 360 Ω, VL = 4 V, RL = 44 Ω, CL = 70 pF, CG = 0.992 35 65 105 ns
tPLH2 Low-to-high propagation delay time, LE(ED1) to OUTn 35 65 105 ns
tPLH3 Low-to-high propagation delay time, OE(ED2) to OUTn 35 65 105 ns
tPLH4 Low-to-high propagation delay time, CLK to SDO 20 45 ns
tPHL1 High-to-low propagation delay time, CLK to OUTn 200 300 470 ns
tPHL2 High-to-low propagation delay time, LE(ED1) to OUTn 200 300 470 ns
tPHL3 High-to-low propagation delay time, OE(ED2) to OUTn 200 300 470 ns
tPHL4 High-to-low propagation delay time, CLK to SDO 20 40 ns
tw(CLK) Pulse duration, CLK 20 ns
tw(L) Pulse duration LE(ED1) 20 ns
tw(OE) Pulse duration, OE(ED2) 1000 ns
tw(ED2) Pulse duration, OE(ED2) in Error Detection mode 2 μs
th(ED1,ED2) Hold time, LE(ED1), and OE(ED2) 10 ns
th(D) Hold time, SDI 5 ns
tsu(D,ED1,ED2) Setup time, SDI, LE(ED1), and OE(ED2) 7 ns
th(L) Hold time, LE(ED1), Normal mode 18 ns
tsu(L) Setup time, LE(ED1), Normal mode 18 ns
tr Rise time, CLK(1) 500 ns
tf Fall time, CLK(1) 500 ns
tor Rise time, outputs (off) 245 ns
tof Rise time, outputs (on) 600 ns
fCLK Clock frequency Cascade operation 30 MHz
(1) If the devices are connected in cascade and tr or tf is large, it may be critical to achieve the timing required for data transfer between two cascaded devices.

7.9 Switching Characteristics: VDD = 5.5 V

VDD = 5.5 V, TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tPLH1 Low-to-high propagation delay time, CLK to OUTn VIH = VDD, VIL = GND, Rext = 360 Ω, VL = 4 V, RL = 44 Ω, CL = 70 pF, CG = 0.992 27 65 95 ns
tPLH2 Low-to-high propagation delay time, LE(ED1) to OUTn 27 65 95 ns
tPLH3 Low-to-high propagation delay time, OE(ED2) to OUTn 27 65 95 ns
tPLH4 Low-to-high propagation delay time, CLK to SDO 20 30 ns
tPHL1 High-to-low propagation delay time, CLK to OUTn 180 300 445 ns
tPHL2 High-to-low propagation delay time, LE(ED1) to OUTn 180 300 445 ns
tPHL3 High-to-low propagation delay time, OE(ED2) to OUTn 180 300 445 ns
tPHL4 High-to-low propagation delay time, CLK to SDO 20 30 ns
tw(CLK) Pulse duration, CLK 20 ns
tw(L) Pulse duration LE(ED1) 20 ns
tw(OE) Pulse duration, OE(ED2) 1000 ns
tw(ED2) Pulse duration, OE(ED2) in Error Detection mode 2 μs
th(ED1,ED2) Hold time, LE(ED1), and OE(ED2) 10 ns
th(D) Hold time, SDI 3 ns
tsu(D,ED1,ED2) Setup time, SDI, LE(ED1), and OE(ED2) 4 ns
th(L) Hold time, LE(ED1), Normal mode 15 ns
tsu(L) Setup time, LE(ED1), Normal mode 15 ns
tr Rise time, CLK(1) 500 ns
tf Fall time, CLK(1) 500 ns
tor Rise time, outputs (off) 245 ns
tof Rise time, outputs (on) 570 ns
fCLK Clock frequency Cascade operation 30 MHz
(1) If the devices are connected in cascade and tr or tf is large, it may be critical to achieve the timing required for data transfer between two cascaded devices.

7.10 Typical Characteristics

Figure 1: At low voltage levels (VO), the output current (IO) may be limited. Figure 1 shows the dependency of the output current on the output voltage.
TLC5926-Q1 TLC5927-Q1 g_io_vo_lvs677.gifFigure 1. Output Current vs Output Voltage