L9949 Просмотр технического описания (PDF) - STMicroelectronics
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L9949 Datasheet PDF : 20 Pages
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L9949
ELECTRICAL CHARACTERISTCS (continued)
VS = 8 to 16 V, VCC = 4.5 to 5.5 V, Tj = -40 to 150 °C, unless otherwise specified. The voltages are refered to
GND and currents are assumed positive, when the current flows into the pin.
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
OUTPUTS: OUT1 - OUT6
IOLD12 Open Load Detection Current of
OUT1 and OUT2
80
160 320 mA
IOLD345 Open load detection current of
OUT3, OUT4 and OUT5
20
40
60
mA
IOLD6 open load detection current of
OUT6
60
160 320 mA
tdOL minimum duration of open load
condition to set the status bit
500
3000 µs
tISC minimum duration of overcurrent
condition to switch off the driver
10
100
µs
dVOUT12/dt slew rate of OUT1 and OUT2
VS = 13.5 V,
for highside driver: Iload = -3A,
for lowside driver: Iload = 3A
0.1
0.2
0.4 V/µs
dVOUT345/dt slew rate of OUT3, OUT4 and
OUT5
VS = 13.5 V,
0.09 0.2
for highside driver: Iload = -0.8A,
for lowside driver: Iload = 0.8A
0.4 V/µs
dVOUT6/dt slew rate of OUT6
VS = 13.5 V, Iload = -2.5A
0.1
0.2
0.4 V/µs
Figure 6. Application Circuit Diagram
VBAT
5V
STXXX
*see comment
below
VCC VS OUT1
M
CM
OUT2
L9949OUT3 M
CSN
OUT4
M
CLK
OUT5
DI
OUT6
DO
GND
*see comment
below
VCC
CM0
CM1
SS0
µC SS1
SCK
MOSI
MISO
VCC VS OUT1
M
CM
OUT2
L9949
OUT3
M
CSN
OUT4
M
CLK
OUT5
DI
OUT6
DO
GND
*in case of an unexpected freewheeling condition (e.g. POR, TSD or OV event) capacitor value
must be high enough to limit maximum Vs voltage of L9949 appl_n_wmf below absolute
maximum ratings.
11/20
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