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SI4728CY Datasheet, PDF (8/9 Pages) Vishay Siliconix – N-Channel Synchronous MOSFETs with Break-Before-Make
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Si4728CY
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Normalized Thermal Transient Impedance, Junction-to-Ambient (Q1)
2
1
Duty Cycle = 0.5
0.2
0.1
0.1
0.05
0.02
0.01
10 - 4
Single Pulse
10 - 3
10 - 2
10 - 1
1
Square Wave Pulse Duration (sec)
Notes:
PDM
t1
t2
1. Duty Cycle, D =
t1
t2
2. Per Unit Base = RthJA = 85_C/W
3. TJM - TA = PDMZthJA(t)
4. Surface Mounted
10
100
600
2
1
Duty Cycle = 0.5
Normalized Thermal Transient Impedance, Junction-to-Foot (Q1)
0.2
0.1
0.1
0.05
0.02
Single Pulse
0.01
10 - 4
10 - 3
10 - 2
10 - 1
1
10
Square Wave Pulse Duration (sec)
2
1
Duty Cycle = 0.5
Normalized Thermal Transient Impedance, Junction-to-Ambient (Q2)
0.2
0.1
0.1
0.05
0.02
0.01
10 - 4
Single Pulse
10 - 3
10 - 2
10 - 1
1
Square Wave Pulse Duration (sec)
Notes:
PDM
t1
t2
1. Duty Cycle, D =
t1
t2
2. Per Unit Base = RthJA = 68_C/W
3. TJM - TA = PDMZthJA(t)
4. Surface Mounted
10
100
600
www.vishay.com
8
Document Number: 71286
S-03075—Rev. C, 03-Feb-03
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