TIDT280 May   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Considerations
    3. 1.3 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency
    2. 2.2 Loss
    3. 2.3 Load Regulation
    4. 2.4 Line Regulation
    5. 2.5 Thermal Images
    6. 2.6 Bode Plots
      1. 2.6.1 9-V Input Voltage
      2. 2.6.2 24-V Input Voltage
      3. 2.6.3 48-V Input Voltage
      4. 2.6.4 56-V Input Voltage
  6. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Transistor Q5 (Low-Side FET)
        1. 3.1.1.1 Drain - Source
          1. 3.1.1.1.1 9-V Input Voltage
          2. 3.1.1.1.2 56-V Input Voltage
        2. 3.1.1.2 Gate - Source
          1. 3.1.1.2.1 9-V Input Voltage
          2. 3.1.1.2.2 56-V Input Voltage
      2. 3.1.2 Transistor Q1 (High-Side FET)
        1. 3.1.2.1 Source - Drain (Referenced to VIN)
          1. 3.1.2.1.1 9-V Input Voltage
          2. 3.1.2.1.2 56-V Input Voltage
        2. 3.1.2.2 Gate - Source
          1. 3.1.2.2.1 9-V Input Voltage
          2. 3.1.2.2.2 56-V Input Voltage
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
      1. 3.4.1 9-V Input Voltage
      2. 3.4.2 56-V Input Voltage
    5. 3.5 Start-Up Sequence
      1. 3.5.1 9-V Input Voltage
      2. 3.5.2 56-V Input Voltage
    6. 3.6 Shutdown Sequence
      1. 3.6.1 9-V Input Voltage
      2. 3.6.2 56-V Input Voltage

2.5 Thermal Images

The PMP30916 thermal images are shown in the following figures.

24-V Input48-V Input

1 AOUT

GUID-20220422-SS0I-BGCM-FNQR-DPNFWXWMNKP6-low.jpg
GUID-20220422-SS0I-5VKL-WC8D-M5MXWHT99PQG-low.jpg

2 AOUT

GUID-20220422-SS0I-TZNF-2HLQ-HBFRFCWQLTCZ-low.jpg
GUID-20220422-SS0I-W8DR-WDLT-P1SKXDLZWBSL-low.jpg
Figure 2-6 Thermal Images
Name 24 VIN, 1 AOUT 24 VIN, 2 AOUT 48 VIN, 1 AOUT 48 VIN, 2 AOUT

C18

52.1°C

59.7°C

77.5°C

88.6°C

L2

48.0°C

57.3°C

64.9°C

76.3°C

Q1

51.7°C

60.3°C

74.1°C

86.1°C

Q5

49.8°C

57.6°C

69.8°C

80.7°C

R19

57.0°C

65.3°C

92.4°C

106.6°C

U1

53.1°C

59.1°C

77.4°C

84.4°C
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