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AN2785 Datasheet(PDF) 35 Page - STMicroelectronics

Part # AN2785
Description  L6393 half bridge gate driver
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2785 Datasheet(HTML) 35 Page - STMicroelectronics

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AN2785
How to increase the gate driver output current capability
Doc ID 14785 Rev 1
35/51
Figure 26.
Example of a gate driving circuit with current buffers to increase current
capability
In the example above, the ST devices STS01DTP06 are dual NPN-PNP complementary
bipolar transistors rated for 1 A current and available in the small SO-8 package. The two
push-pull structures are placed on each gate driving path and must be provided with a
decoupling capacitor very close to the device pins (as shown in Figure 26).
HVG
H.V.
TO LOAD
OUT
LVG
VBOOT
GND
VCC
100 nF
25V
10 uF
25V
+
15V
+
-
100 nF
25V
100 uF
400V
+
VCC
100 nF
25V
STS01DTP06
100 nF
25V
STS01DTP06
Very close to push-pull stage
Very close to push-pull stage
GATE
DRIVER
0-10
Ω
0.25W
0-10
Ω
0.25W
0-10
Ω
0.25W
0-10
Ω
0.25W



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