L6385ED STMicroelectronics, L6385ED Datasheet - Page 8

• Manufacturer Part Number: L6385ED
• Description: IC DRIVER HIGH/LOW SIDE 8-SOIC
• Manufacturer: STMicroelectronics
• Type: High Side/Low Sider

Specifications of L6385ED

• Configuration: Half Bridge
• Input Type: Non-Inverting
• Delay Time: 110ns
• Current - Peak: 400mA
• Number Of Configurations: 1
• Number Of Outputs: 2
• High Side Voltage - Max (bootstrap): 600V
• Voltage - Supply: 17V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Product: Half-Bridge Drivers
• Rise Time: 50 ns
• Fall Time: 30 ns
• Supply Voltage (min): - 0.3 V
• Maximum Power Dissipation: 750 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Bridge Type: Half Bridge
• Minimum Operating Temperature: - 45 C
• Number Of Drivers: 2
• For Use With: 497-5492 - EVAL BOARD FOR L6384/L6385/L6386
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Bootstrap driver
8/16
For example: using a power MOS with a total gate charge of 30nC the drop on the bootstrap
DMOS is about 1V, 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
charge
V
V
BOOT
OUT
H.V.
V
is 5µs. In fact:
drop
=
C
TO LOAD
BOOT
30nC
-------------- - 125Ω
5µs
⋅
V
S
∼
0.8V
BOOT
b
HVG
LVG
is calculated: if this drop
V
V
BOOT
OUT
H.V.
D99IN1056
L6385E
C
TO LOAD
BOOT