TIDT347 November   2023

 

  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 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Data
    2. 2.2 Efficiency Graphs
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Charging Waveform
    2. 3.2 Switching Waveform
    3. 3.3 Short-Circuit Protection

2.1 Efficiency Data

Table 2-1 shows the sink mode only efficiency test across different Vsys voltages from input source as well as different battery cell conditions. The fast charge current limit is set to 3 A and input current limit is set to 3 A for 5-V, 9-V, and 15-V input source, and 5 A for 20-V input source.

Table 2-1 Sink Mode Only Efficiency Test
Battery Cell Setting Vsys Input Voltage (V) Vsys (V) IIN (A) PIN (W) Vbat (V) Ichg (A) POUT (W) Efficiency Power Loss (W)
10S54.653.03314.1040.410.30212.2086.53%1.90
10S98.873.00826.6840.520.60524.5191.88%2.17

10S

15

14.95

3.006

44.94

40.62

1.037

42.12

93.73%

2.82

10S

20

19.17

4.95

94.89

40.88

2.224

90.92

95.81%

3.97

7S

5

4.65

3.031

14.09

24.49

0.518

12.69

90.01%

1.41

7S

9

8.88

3.008

26.71

24.62

1.016

25.01

93.65%

1.70

7S

15

14.96

3.005

44.95

24.78

1.73

42.87

95.36%

2.09

7S

20

19.33

3.943

76.22

25.02

2.937

73.48

96.41%

2.73

4S

5

4.66

3.032

14.13

14.6

0.889

12.98

91.86%

1.15

4S

9

8.89

3.008

26.74

14.8

1.711

25.32

94.70%

1.42

4S

15

14.96

3.006

44.97

15.02

2.88

43.26

96.19%

1.71

4S

20

19.58

2.344

45.90

14.98

2.938

44.01

95.89%

1.88