TIDT406 August   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Start-Up and Shutdown
    2. 3.2 Charge Enable and Disable
    3. 3.3 Typical Charge Waveforms
    4. 3.4 Typical OTG Waveforms
    5. 3.5 OTG Transient
  8.   Trademarks

2.3 Thermal Images

The PMP22405 design was tested with a 4S battery at room temperature and natural convection as shown in Figure 2-3 and Figure 2-4.

Figure 2-3 shows test results at 36VIN, 14.8VBAT, 180W, 600kHz.

PMP22405 Thermal Image (36VIN, 14.8VBAT, 180W)
  1. RAC temperature = 65.0°C
  2. Phase A FETs = 68.0°C
  3. Phase B FETs = 69.8°C
  4. IND temperature = 64.4°C
Figure 2-3 Thermal Image (36VIN, 14.8VBAT, 180W)

Figure 2-4 shows test results at 36VIN, 17.8VBAT, 180W, 600kHz.

PMP22405 Thermal Image (36VIN, 17.8VBAT, 180W)
  1. RAC temperature = 60.8°C
  2. Phase A FETs = 63.8°C
  3. Phase B FETs = 66.1°C
  4. IND temperature = 61.0°C
Figure 2-4 Thermal Image (36VIN, 17.8VBAT, 180W)