l9947 STMicroelectronics, l9947 Datasheet - Page 7

• Manufacturer Part Number: l9947
• Description: Quad Half-bridge And Single High-side Driver
• Manufacturer: STMicroelectronics

Figure 2: System Startup Sequence
SYSTEM STARTUP (figure 2)
It is not mandatory that V
With the presence of the V
would be reseted and the system restarts under
control of the inputs. If CSN = 0 for more than
100 s after the presence of V
mode is activated. Standby is also activated when
the CSN and VCC would be high at the same
S
is present before V
CC
the internal logic
CC
the standby
CC
.
time. When CSN = 0 and V
is not controlled by the bus. The outputs remain in
tristate but the current consumption is larger than
100 A. A high - low - signal at the CSN - wire is
mandatory to control the outputs. There is no un-
dervoltage detection level for the supply voltage
VS implemented. The VCC should be supplied
from the same voltage supply as the driver of the
D0 -D3 pins (eg. C).
CC
goes up, the device
L9947
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