Data Sheet

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8
FAN7081-GF085 High Side Gate Driver
3.VB Drop Voltage Diagram
VBdrop
IN
VB-VS
I
g
15V
Brake before make
VCC
IN
COM
VB
HO
NC
VS
1u
50
2.2n
Ig
NC
Figure3b. VB Drop Voltage Test Circuit
Figure 3a. VB Drop Voltage Diagram
Figure 4a.Short Pulse Width Test Circuit and Pulse Width Waveform
Figure 4b. Abnormal Output Waveform with short pulse width
Figure 4c. Recommendation of pulse width Output Waveform
Bat1
1
2
4
5
6
7
8
3
VCC
IN
COM
N.C
VS
HO
VB
N.C
Bat2
0.1uF
FAN7081
IN
63%
40%
Tpulse = 85nS
Less than
65nS Pulse
Width
142KHz
IN
HO
Abnormal Output
Recommended
pulse width
85nS
142KHz
HO
IN
4.Recommendation Min. Short Pulse Width