SLUUBN2A March   2017  – August 2021 TPS549B22

 

  1.   Trademarks
  2. 1 Introduction
    1. 1.1 Before You Begin
  3. 2 Description
    1. 2.1 Typical End-User Applications
    2. 2.2 EVM Features
  4. 3 EVM Electrical Performance Specifications
  5. 4 Schematic
  6. 5 Test Setup
    1. 5.1 Test and Configuration Software
      1. 5.1.1 Description
      2. 5.1.2 Features
  7. 6 Test Equipment
  8. 7 PWR-847EVM
  9. 8 List of Test Points, Jumpers, and Switch
  10. 9 EVM Configuration Using the Fusion GUI
  11. 10Test Procedure
    1. 10.1 Line and Load Regulation Measurement Procedure
    2. 10.2 Efficiency
    3. 10.3 Equipment Shutdown
  12. 11Performance Data and Typical Characteristic Curves
    1. 11.1 Efficiency
    2. 11.2 Load Regulation
    3. 11.3 Line Regulation
    4. 11.4 Transient Response
    5. 11.5 Output Ripple
    6. 11.6 Control On
    7. 11.7 Control Off
    8. 11.8 Thermal Image
  13. 12Fusion GUI
  14. 13EVM Assembly Drawing and PCB Layout
  15. 14List of Materials
  16. 15Revision History

9 EVM Configuration Using the Fusion GUI

The TPS549B22 installed on this EVM leave the factory pre-configured. See Table 9-1 for a short list of key factory configuration parameters as obtained from the configuration file.

Table 9-1 Key Factory Configuration Parameters
Cmd ID With PhaseCmd Code HexEncoded Hex
[HiByte|LoByte]		Comments
CAPABILITY0x190xD0Max Bus: 1000 kHz; PEC: Yes; SMBALERT#: Yes
MFR_000xD00x000
MFR_01 (PGOOD_DLY)0xD10x12PGD:1024?s [010b], POD:1024?s [010b]
MFR_020xD20x13CM: True, HICLOFF: True, SST: 0x00, FORCESKIPSS: True, SEQ: False, TRK: False
MFR_030xD30x93FS:650 kHz [011b], RCSP:R ? 1 [01b], DCAP3:True
MFR_040xD40x80DCAP3_Offset:0mV [00b], DCAP3_Offset_Sel:True
MFR_060xD60x05VDDUVLO:4.25V [101b]
MFR_070xD70x8FVTRKIN:1.25V [1111b], TRKOPTION:False, SPARE:False, VPBAD:True
MFR_330xF10x000
MFR_420xFA0x000
MFR_440xFC0x0201ID: 0x020 (TPS549B22), Revision: 0x8
ON_OFF_CONFIG0x020x17Mode: CONTROL Pin Only; Control: Active High, Turn off Immediately
OPERATION0x010x00Operation is not used to enable regulatio; Unit: ImmediateOff; Margin: None
STATUS_BYTE0x780x00Status: Output Off, Vout OV Fault, IOUT OC Fault, Vin UV Fault, Temperature, CML
STATUS_CML0x7E0x00Status: Invalid Command, Invalid Data, PEC Fault, Other Comms Fault
STATUS_IOUT0x7B0x00Status: Iout OC Fault, Iout OC Fault with LV Shutdown, Iout UC Fault
STATUS_VOUT0x7A0x00Status: Vout OV Fault, OV Warning, UV Fault, UV Warning
VOUT_COMMAND0x210x01CDVOUT_COMMAND=0.900 V
VOUT_MARGIN_HIGH0x250x0266VOUT_MARGIN_HIGH=1.199 V
VOUT_MARGIN_LOW0x260x0266VOUT_MARGIN_LOW=1.199 V
WRITE_PROTECT0x100x00Enable Writes To All Commands

If it is desired to configure the EVM to settings other than the factory settings shown in Table 9-1, the TI Fusion Digital Power Designer software can be used for reconfiguration. It is necessary to have input voltage applied to the EVM prior to launching the software so that the TPS549B22 installed is active and able to respond to the GUI and the GUI can recognize the device.