JAJU528B August   2022  – January 2023 OPA388-Q1

 

  1.   概要
  2.   リソース
  3.   特長
  4.   アプリケーション
  5.   5
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagrams
    2. 2.2 Highlighted Products
      1. 2.2.1 TPSI2140-Q1
      2. 2.2.2 AMC1301-Q1
      3. 2.2.3 SN6501-Q1
    3. 2.3 System Design Theory
      1. 2.3.1 Isolation Leakage Current Theory
      2. 2.3.2 High-Voltage Measurement
  8. 3Hardware, Testing Requirements, and Test Results
    1. 3.1 Required Hardware
    2.     Hardware with Solid-State Relay
    3. 3.2 Testing and Results
      1. 3.2.1 Test Setup
      2. 3.2.2 Isolation Tests
        1. 3.2.2.1 Normal Conditions
        2. 3.2.2.2 Isolation Error at HV Positive
        3. 3.2.2.3 Isolation Error at HV Negative
        4. 3.2.2.4 Isolation Error at ¼ HV Battery Voltage
        5. 3.2.2.5 Isolation Error at ¾ HV Battery Voltage
        6. 3.2.2.6 Isolation Error at the Middle of an HV Battery Voltage
      3. 3.2.3 Solid-State Relay Isolation Tests
        1. 3.2.3.1 Normal Conditions
        2. 3.2.3.2 Isolation Error at HV Positive
        3. 3.2.3.3 Isolation Error at HV Negative
        4. 3.2.3.4 Isolation Error at ¼ HV Battery Voltage
        5. 3.2.3.5 Isolation Error at ¾ HV Battery Voltage
        6. 3.2.3.6 Isolation Error at the Middle of an HV Battery Voltage
      4. 3.2.4 High Voltage Measurements
      5. 3.2.5 Isolation Measurement Analysis
      6. 3.2.6 Error Analysis
  9. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout Recommendations
      1. 4.3.1 Layout Prints
    4. 4.4 Altium Project
    5. 4.5 Gerber Files
    6. 4.6 Assembly Drawings
  10. 5Software Files
  11. 6Related Documentation
  12. 7Trademarks
  13. 8Revision History

Normal Conditions

For normal condition tests, there are no connections to the load card. This reference design is connected with both high-voltage and low-voltage power supplies. The high battery voltage was varied to measure the performance of analog circuit.

GUID-94665D15-C275-4043-A82F-98734B5BCB6E-low.gifFigure 3-7 Normal Conditions 400 V
CH1: ISO_POS
CH2: ISO_NEG
CH3: RELAY_NEG
CH4: RELAY_POS
GUID-08E64D5D-F18B-450D-BB69-CABD353E7D90-low.gifFigure 3-8 Normal Conditions 350 V
CH1: ISO_POS
CH2: ISO_NEG
CH3: RELAY_NEG
CH4: RELAY_POS
GUID-DCB44D01-21D4-4D56-BCBA-A357243D1C1B-low.gifFigure 3-9 Normal Conditions 300 V
CH1: ISO_POS
CH2: ISO_NEG
CH3: RELAY_NEG
CH4: RELAY_POS
GUID-945E1D74-5FE7-4F03-8328-C35B2ECA18F4-low.gifFigure 3-10 Normal Conditions 200 V
CH1: ISO_POS
CH2: ISO_NEG
CH3: RELAY_NEG
CH4: RELAY_POS

Table 3-1 lists the voltage measurements at different points of the board.

Table 3-1 Measurements at Normal Condition
HV BATTERY VOLTAGE
(SUPPLIED AND MEASURED)
MEASURED REFERENCE VOLTAGEPEAK ISO_POS VOLTAGEPEAK ISO_NEG VOLTAGE
100.0062.5052.2952.714
150.0082.5042.192.819
200.0032.5042.0862.923
250.0042.5041.9823.027
300.0042.5041.8783.131
350.0042.5041.7743.235
400.0062.5041.6693.34
450.0072.5041.5653.444
GUID-3DC7004C-E33A-417B-AEE2-7A418438BBE5-low.gifFigure 3-11 Behavior of Isolation Analog Outputs