參數(shù)資料
型號: VNQ830P
英文描述: QUAD CHANNEL HIGH SIDE DRIVER
中文描述: 四通道高邊驅(qū)動器
文件頁數(shù): 9/20頁
文件大?。?/td> 309K
代理商: VNQ830P
9/20
VNQ830P
GND
REVERSE BATTERY
Solution 1: Resistor in the ground line (R
GND
only). This
can be used with any type of load.
The following is an indication on how to dimension the
R
GND
resistor.
1) R
GND
600mV / 2(I
S(on)max
).
2) R
GND
≥ (
V
CC
) / (-I
GND
)
where -I
is the DC reverse ground pin current and can
be found in the absolute maximum rating section of the
device’s datasheet.
Power Dissipation in R
GND
(when V
CC
<0: during reverse
battery situations) is:
PROTECTION
NETWORK
AGAINST
P
D
= (-V
CC
)
2
/R
GND
This resistor can be shared amongst several different
HSD. Please note that the value of this resistor should be
calculated with formula (1) where I
becomes the
sum of the maximum on-state currents of the different
devices.
Please note that if the microprocessor ground is not
common with the device ground then the R
will
produce a shift (I
* R
) in the input thresholds
and the status output values. This shift will vary
depending on how many devices are ON in the case of
several high side drivers sharing the same R
GND
.
If the calculated power dissipation leads to a large resistor
or several devices have to share the same resistor then
the ST suggests to utilize Solution 2.
APPLICATION SCHEMATIC
V
CC1,2
OUTPUT2
+5V
R
prot
OUTPUT1
STATUS1
INPUT1
+5V
STATUS2
INPUT2
+5V
D
GND
R
GND
V
GND
GND1,2
GND3,4
OUTPUT3
OUTPUT4
μ
C
V
CC3,4
STATUS3
INPUT3
STATUS4
INPUT4
+5V
+5V
R
prot
R
prot
R
prot
R
prot
R
prot
R
prot
R
prot
D
ld
Note: Channels 3 & 4 have the same internal circuit as channel 1 & 2.
相關(guān)PDF資料
PDF描述
VNQ830PEP QUAD CHANNEL HIGH SIDE DRIVER
VNQ860 QUAD CHANNEL HIGH SIDE DRIVER
VNQ860SP QUAD CHANNEL HIGH SIDE DRIVER
VNS008A TRANSISTOR | MOSFET | N-CHANNEL | 600V V(BR)DSS | 5.77A I(D) | TO-204AA
VNS009A TRANSISTOR | MOSFET | N-CHANNEL | 600V V(BR)DSS | 5A I(D) | TO-204AA
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