L6387 STMicroelectronics, L6387 Datasheet - Page 5

• Manufacturer Part Number: L6387
• Description: IC DRIVER HI/LO SIDE HV 8MINIDIP
• Manufacturer: STMicroelectronics
• Type: Low Side Driverr

Specifications of L6387

• Configuration: High and Low Side, Independent
• 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: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Rise Time: 50 ns
• Fall Time: 30 ns
• Supply Voltage (min): 8 V
• Supply Current: 220 mA
• Maximum Power Dissipation: 750 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 50 C
• Number Of Drivers: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5782; L6387

drop on the bootstrap DMOS:
where Q
power MOS, R
bootstrap DMOS, and T
of the bootstrap capacitor.
For example: using a power MOS with a total
gate charge of 30nC the drop on the bootstrap
Figure 3. Bootstrap Driver.
Figure 4. Turn On Time vs. Temperature
V
250
200
150
100
S
V
50
0
drop
-45
Typ.
gate
I
charge
D
-25
BOOT
is the gate charge of the external
dson
R
a
0
dson
HVG
LVG
is the on resistance of the
25
charge
Tj (°C)
V
drop
50
is the charging time
@ Vcc = 15V
V
V
T
BOOT
OUT
Q
charge
75
gate
H.V.
R
100
dson
C
TO LOAD
BOOT
125
DMOS is about 1V, if the T
V
age drop on C
too high, or the circuit topology doesn’t allow a
sufficient charging time, an external diode can be
used.
V
Figure 5. Turn Off Time vs. Temperature
S
drop
250
200
150
100
50
0
has to be taken into account when the volt-
-45
Typ.
V
-25
drop
BOOT
b
HVG
LVG
30nC
0
5 s
is calculated: if this drop is
Tj (°C)
25
125 ~
charge
50
V
V
BOOT
OUT
@ Vcc = 15V
H.V.
is 5 s. In fact:
0.8V
75
D99IN1056
100
C
TO LOAD
L6387
BOOT
125
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