L9949 STMicroelectronics, L9949 Datasheet - Page 18

• Manufacturer Part Number: L9949
• Description: IC DRIVER DOOR ACTUATOR PWRSO-20
• Manufacturer: STMicroelectronics
• Type: Door Actuator Driverr

Specifications of L9949

• Applications: Automotive
• Current - Supply: 7mA
• Voltage - Supply: 7 V ~ 28 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: PowerSO-20 Exposed Bottom Pad
• Product: Half-Bridge Drivers
• Supply Current: 20 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L9949
Figure 12. SPI-Interface - Driver Turn On/Off Timing
Figure 13. SPI-Interface - Timing of Status Bit 0 (Fault Condition)
18/20
CSN
CLK
DO
DI
output current
of a driver
output current
of a driver
CSN
CSN high to low and CLK stays low: status information of data bit 0 (fault condition) is transfered to Data Out
Data Out: status information of data bit 0 (fault condition) will stay as long as CSN is low
0 -
OFF state
ON state
Data In: data is not accepted
t
d OFF
t
dON
t
ON
t
r in
CSN low to high: data fro m shi ft register
is transferred to output power switches
t
OFF
OFF state
ON state
t
f in
time
time
time
time
80%
50%
20%
80%
50%
20%
80%
50%
20%