NCP5351 Datasheet, PDF (9/14 Pages) ON Semiconductor – 4 A Synchronous Buck Power MOSFET Driver

NCP5351
TYPICAL PERFORMANCE CHARACTERISTICS
COM
HOT
−5.0 V
R1
1.0 k
V_S
EN
CO
BST
TG
BG
PGND DRN
R2*
0.108 W
C1 C2 C3 C4
1.0 mF 1.0 mF 100 nF 100 nF
*Applied after power up and input.
Conditions: BST − DRN = 5.0 V;
Room Temperature;
Oscilloscope referenced to V_S (5.0 V).
Figure 5. Top Gate Sinking Current from 0.108 W
CO ^{0 V}
−5.0 V
TG ^{0 V}
−5.0 V
Input
Pulse
50 ns
0V
−5.0 V
Figure 6. Top Gate Sinking
COM
HOT
R3
50
C2
1.0 mF
−5.0 V
Conditions: V_S = 5.0 V;
Room Temperature;
CO = 0 V.
R1
1.0 k
V_S
EN
BST
DRN
PGND
TG
BG
CO
R2*
0.108 W
C1
1.0 mF
*Applied after power up and input.
Figure 7. Bottom Gate Sinking Current from 0.108 W
DRN ^{−3.5 V}
−4.5 V
BG ^{0 V}
−0.5 V
Input
Pulse
50 ns
−3.5 V
−4.5 V
Figure 8. Bottom Gate Sinking
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