SLUUBM0D May   2017  – October 2020 TPS92518 , TPS92518-Q1 , TPS92518HV , TPS92518HV-Q1

 

  1.   Trademarks
  2. 1Description
    1. 1.1 Typical Applications
    2. 1.2 Connector Description
  3. 2Performance Specifications
  4. 3Performance Data and Typical Characteristic Curves
    1. 3.1 Startup Waveforms
      1. 3.1.1 Startup After SPI Enable Command
      2. 3.1.2 Startup on Hardware Enable Pin Transition
    2. 3.2 Shutdown Waveforms
      1. 3.2.1 Shutdown After SPI Disable
      2. 3.2.2 Shutdown After Hardware Enable Pin Transition
    3. 3.3 Current Sharing
    4. 3.4 Diode and Boot Capacitor Current
      1. 3.4.1 Diode, Inductor, and Boot Capacitor Current at Low Output Current
      2. 3.4.2 Diode, Inductor, and Boot Capacitor Current at High Output Current
      3. 3.4.3 Shunt FET Dimming
      4. 3.4.4 Undervoltage Lockout Description
  5. 4Schematic, PCB Layout, and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Layout
    3. 4.3 Bill of Materials
  6. 5Software
    1. 5.1 TPS92518 Demonstration Kit Software Installation
      1. 5.1.1 Windows 10
  7. 6Use of LEDSPIMCUEVM-879 Microcontroller Board for SPI Communications with the TPS92518
  8. 7Revision History

2 Performance Specifications

Table 2-1 TPS92518 EVM Performance Specifications
Parameter Test Conditions Min Typ Max Units
Input Characteristics
Voltage 6.5 14 65 V
Maximum Input Current 2.5 A
Output Characteristics
Output Voltage, VLED Output/LED Voltage (absolute maximum) 0 65 V
Output/LED Voltage (practical limit) 60
Output Current, ILED Output current 0 1.65 A
Default Output Current (Registers = 127/255) 0.538
Dimming Methods
Analog LEDx_PKTH_DAC register = 0 to 255 yes
PWM Use PWMx pin input yes
Shunt FET Use external FET, program LEDx_MAXOFF_DAC register as per datasheet outline yes
Systems Characteristics
Switching frequency Switching Frequency (fSW) Range 1 2000 kHz
Peak efficiency 95 %
Operating temperature –40 25 125 °C