TIDT359 October   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
    5. 3.5 Start-Up Sequence
    6. 3.6 Voltage Supervisor
    7. 3.7 Watchdog

2.2 Efficiency Data

Table 2-1 through Table 2-3 show the efficiency data for VOUT1.

Table 2-1 Efficiency Data VOUT1, VIN = 12 V
VIN (V) IIN (A) VOUT (V) IOUT (A) PIN (W) POUT (W) PLOSS (W) Efficiency (%)
12.01 44.00 4.978 51.30 0.53 0.26 0.27 48.3
12.00 64.20 4.978 99.90 0.77 0.50 0.27 64.6
12.00 106.10 4.978 199.70 1.27 0.99 0.28 78.1
11.99 148.80 4.978 299.60 1.78 1.49 0.29 83.6
11.98 193.30 4.977 402.10 2.32 2.00 0.31 86.4
11.98 237.30 4.977 501.90 2.84 2.50 0.34 87.9
11.98 282.10 4.976 601.80 3.38 2.99 0.39 88.6
Table 2-2 Efficiency Data VOUT1, VIN = 18 V
VIN (V) IIN (A) VOUT (V) IOUT (A) PIN (W) POUT (W) PLOSS (W) Efficiency (%)
18.02 40.40 4.979 51.30 0.73 0.26 0.47 35.1
18.02 53.80 4.978 99.90 0.97 0.50 0.47 51.3
18.02 81.60 4.978 199.70 1.47 0.99 0.48 67.6
18.02 109.80 4.977 299.60 1.98 1.49 0.49 75.4
18.01 139.30 4.977 402.10 2.51 2.00 0.51 79.8
18.01 168.40 4.977 501.90 3.03 2.50 0.53 82.4
18.00 198.20 4.976 601.80 3.57 2.99 0.57 83.9
Table 2-3 Efficiency Data VOUT1, VIN = 24 V
VIN (V) IIN (A) VOUT (V) IOUT (A) PIN (W) POUT (W) PLOSS (W) Efficiency (%)
24.02 40.00 4.978 51.30 0.96 0.26 0.71 26.6
24.02 50.00 4.978 99.80 1.20 0.50 0.70 41.4
24.02 70.80 4.977 199.70 1.70 0.99 0.71 58.4
24.01 91.90 4.977 299.60 2.21 1.49 0.72 67.6
24.01 114.00 4.976 402.10 2.74 2.00 0.74 73.1
24.01 135.90 4.976 501.90 3.26 2.50 0.77 76.5
24.00 158.20 4.975 601.80 3.80 2.99 0.80 78.9

Table 2-4 through Table 2-6 show the efficiency data for VOUT2.

Table 2-4 Efficiency Data VOUT2, VIN = 12 V
VIN (V) IIN (A) VOUT (V) IOUT (A) PIN (W) POUT (W) PLOSS (W) Efficiency (%)
12.05 36.00 3.285 51.30 0.43 0.17 0.27 38.8
12.05 49.20 3.285 100.00 0.59 0.33 0.26 55.4
12.05 76.80 3.284 199.80 0.93 0.66 0.27 70.9
12.05 105.00 3.284 299.70 1.27 0.98 0.28 77.8
12.05 134.60 3.284 402.20 1.62 1.32 0.30 81.4
12.04 164.00 3.284 502.00 1.97 1.65 0.33 83.5
12.04 194.10 3.284 602.00 2.34 1.98 0.36 84.6
Table 2-5 Efficiency Data VOUT2, VIN = 18 V
VIN (V) IIN (A) VOUT (V) IOUT (A) PIN (W) POUT (W) PLOSS (W) Efficiency (%)
18.06 34.80 3.286 51.40 0.63 0.17 0.46 26.9
18.06 43.60 3.286 100.00 0.79 0.33 0.46 41.7
18.06 61.80 3.285 199.80 1.12 0.66 0.46 58.8
18.06 80.50 3.285 299.70 1.45 0.98 0.47 67.7
18.05 100.10 3.284 402.20 1.81 1.32 0.49 73.1
18.05 119.70 3.284 502.00 2.16 1.65 0.51 76.3
18.05 139.70 3.284 602.00 2.52 1.98 0.54 78.4
Table 2-6 Efficiency Data VOUT2, VIN = 24 V
VIN (V) IIN (A) VOUT (V) IOUT (A) PIN (W) POUT (W) PLOSS (W) Efficiency (%)
24.00 29.90 3.292 51.30 0.72 0.17 0.55 23.5
24.01 37.80 3.288 99.90 0.91 0.33 0.58 36.2
24.01 53.00 3.286 199.80 1.27 0.66 0.62 51.6
24.01 67.70 3.285 299.70 1.63 0.98 0.64 60.6
24.01 82.90 3.285 402.20 1.99 1.32 0.67 66.4
24.00 98.20 3.285 502.00 2.36 1.65 0.71 70.0
24.00 113.80 3.285 601.90 2.73 1.98 0.75 72.4