L9947 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
L9947 Datasheet PDF : 13 Pages
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L9947
Output Activating/write Table 1
Status CSN R/WN MODE D0 D1 D2 D3 OUT1 OUT2 OUT3 OUT4 OUT5
FUNCTION
1
1X
X X X X X AB AB AB AB AB Hold output behavious as
programmed before
2
_ 0
0
0000 T
T
T
T
T All Outputs, Standby mode
3
_ 0
0
0 0 1 0 SRC T
T SNK T
M1, right
4
_ 0
0
1 1 0 0 SNK T
T SRC T
M1, left
5
_ 0
0 1 0 1 0 T SRC T SNK T
M2, right
6
_ 0
0 0 1 0 0 T SNK T SRC T
M2, left
7
_ 0
0
0110 T
T SRC SNK T
M3, right
8
_ 0
) 9
_ 0
t(s 10
_ 0
0
1000 T
T SNK SRC T
0 1 1 1 0 SNK SNK SNK SNK T
0 0001 T
T
T
T SRC
M3, left
Braking
High side driver
c Notes:
u Where CSN = 0 the device is (for t ≤ 100µs) transparent, in this condition any change of Data D0 .... D3
d will lead to the apprpriate output response.
ro ) Deselecting the circuit (CSN ) the last programmed status will be stored.
te P ct(s Diagnostic / read. Table 2:
le u In readout modes the port D0 .... D3 is acting as an output showing the conditions detected before.
so rod Status CSN R/WN MODE D0
D1
D2
D3
Function
b P 11
_
1
0
OUT1 OUT2 OUT3 OUT4 OUT1, OUT2, OUT3,
- O te 12
_
1
1
0
0
OT OUT5 • No failure,
OT,
) le 13
_
1
1
1
0
OT OUT5 • OVC1,
OT,
14
_
1
1
0
1
OT OUT5 • OVC2,
OT,
t(s so 15
_
1
1
1
1
OT OUT5
OVV
OT,
c b or OVV + OVC1
u or OVV + OVC2
d - O Diagnostic / write. Table 3:
ro ) Diagnostic modes are used to check the load status for broken or shorted wires.
OUT4;
OUT5;
OUT5;
OUT5;
OUT5;
P t(s Status CSN R/WN MODE D0 D1 D2 D3 OUT1 OUT2 OUT3 OUT4 OUT5
te c 16 _ 0
1 010X T
T
T 140mA T
le u SRC
so rod 17 _ 0
1 100X T
T
T 140mA T
SNK
Ob te P 18 _ 0
1 0 1 1 X 10mA 10mA 10mA 140mA 10mA
SNK SNK SNK SRC SRC
le Standby and clear / write. Table 4:
Function
Is+Icc ≤ 1mA for IOUT4 = 0
so Status CSN R/WN MODE D0 D1 D2 D3 OUT1 OUT2 OUT3
b19 _ 0
0 1111 T
T
T
O 20 0 X
X XXXX T
T
T
OUT4
T
T
OUT5
T
T
Function
Clear
Clear, Static CSN = 0 will
force clear status and
standby after 100µs
without respect of data
inputs
Symbols:
1: Logic High
0: Logic Low
T: Tristate
X: Don’t care
6/13
AB: As before
_ Low pulse t < 100µs
SRC: Source
SNK: Sink
OT: Overtemperature
OVC1: Overcurrent 1
OVC2: Overcurrent 2
OVV: Overvoltage
OUTX:
- High if output voltage
was >0.6Vs during test
- Low if output voltage
was < 0.4Vs during test
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