l6386ad013tr STMicroelectronics, l6386ad013tr Datasheet - Page 9

• Manufacturer Part Number: l6386ad013tr
• Description: High-voltage High And Low Side Driver
• Manufacturer: STMicroelectronics

L6386AD
For example: using a power MOS with a total gate charge of 30 nC the drop on the
bootstrap DMOS is about 1 V, if the T
V
is too high, or the circuit topology doesn’t allow a sufficient charging time, an external diode
can be used.
Figure 4.
drop
V
S
has to be taken into account when the voltage drop on C
D
BOOT
Bootstrap driver
a
HVG
LVG
V
V
BOOT
OUT
H.V.
V
drop
charge
=
C
TO LOAD
BOOT
30nC
-------------- -
5µs
is 5 µs. In fact:
⋅
V
125Ω 0.8V
S
∼
b
BOOT
HVG
LVG
is calculated: if this drop
V
V
Bootstrap driver
BOOT
OUT
H.V.
D99IN1056
C
TO LOAD
BOOT
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