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PDF L6387D Data sheet ( Hoja de datos )
| Número de pieza | L6387D | |
| Descripción | HIGH-VOLTAGE HIGH AND LOW SIDE DRIVER | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L6387D (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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® L6387
HIGH-VOLTAGE HIGH AND LOW SIDE DRIVER
HIGH VOLTAGE RAIL UP TO 600 V
dV/dt IMMUNITY +- 50 V/nsec IN FULL TEM-
PERATURE RANGE
DRIVER CURRENT CAPABILITY:
400 mA SOURCE,
650 mA SINK
SWITCHING TIMES 50/30 nsec RISE/FALL
WITH 1nF LOAD
CMOS/TTL SCHMITT TRIGGER INPUTS
WITH HYSTERESIS AND PULL DOWN
INTERNAL BOOTSTRAP DIODE
OUTPUTS IN PHASE WITH INPUTS
DESCRIPTION
The L6387 is an high-voltage device, manufac-
tured with the BCD"OFF-LINE" technology. It has
a Driver structure that enables to drive inde-
pendent referenced N Channel Power MOS or
SO8
Minidip
ORDERING NUMBERS:
L6387D
L6387
IGBT. The Upper (Floating) Section is enabled to
work with voltage Rail up to 600V. The Logic In-
puts are CMOS/TTL compatible for ease of inter-
facing with controlling devices.
BLOCK DIAGRAM
BOOTSTRAP DRIVER
VCC 3
UV
DETECTION
2
HIN
1
LIN
LOGIC
LEVEL
SHIFTER
8 Vboot
H.V.
HVG
DRIVER
HVG
R
7
S
OUT
VCC
6
5 LVG
LVG
DRIVER
4 GND
Cboot
TO LOAD
D00IN1135
May 2001
1/9
1 page  
L6387
drop on the bootstrap DMOS:
Vdrop = IchargeRdson → Vdrop = TQchgaartgeeRdson
where Qgate is the gate charge of the external
power MOS, Rdson is the on resistance of the
bootstrap DMOS, and Tcharge is the charging time
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.
DMOS is about 1V, if the Tcharge is 5µs. In fact:
Vdrop
=
30nC
5µs
⋅
125Ω
~
0.8V
Vdrop has to be taken into account when the volt-
age drop on CBOOT is calculated: if this drop is
too high, or the circuit topology doesn’t allow a
sufficient charging time, an external diode can be
used.
DBOOT
VS
HVG
LVG
a
VBOOT
H.V.
VOUT
VS
CBOOT
TO LOAD
HVG
LVG
b
VBOOT
H.V.
VOUT
CBOOT
TO LOAD
D99IN1056
Figure 4. Turn On Time vs. Temperature
250
@ Vcc = 15V
200
150
Typ.
100
50
0
-45 -25 0
25 50 75 100 125
Tj (°C)
Figure 5. Turn Off Time vs. Temperature
250
@ Vcc = 15V
200
150
Typ.
100
50
0
-45 -25 0
25 50 75 100 125
Tj (°C)
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet L6387D.PDF ] | |
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