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Numéro de référence | L9950 | ||
Description | DOOR ACTUATOR DRIVER | ||
Fabricant | STMicroelectronics | ||
Logo | |||
1 Page
L9950
DOOR ACTUATOR DRIVER
1 FEATURES
■ One full bridge for 6A load (ron = 150mΩ )
■ Two half bridges for 3A load (ron = 300mΩ )
■ Two half bridges for 1.5A load (ron = 800mΩ )
■ One highside driver for 6A load (ron = 100mΩ )
■ Four highside drivers for 1.5A load (ron = 800 mΩ )
■ Programmable Softstart function to drive loads
with higher inrush currents (i.e. current
>6A,>3A,>1.5A)
■ Very low current consumption in standby mode
IS < 6µA, typ. Tj ≤ 85 °C)
■ All outputs short circuit protected
■ Current monitor output for 300mΩ ,150mΩ and
100m highside drivers
■ All outputs over temperature protected
■ Open load diagnostic for all outputs
■ Overload diagnostic for all outputs
■ Seperated half bridges for door lock motor
■ PWM control of all outputs
■ Charge Pump output for reverse polarity
protection
2 APPLICATIONS
Door Actuator Driver with bridges for door lock and
safe lock, mirror axis control, mirror fold and highside
Figure 2. Block Diagram
VCC
CM/PWM2
1k
CP
PWM2
DI
1k
DO
1k
CLK
1k
CSN
1k
PW M1
1k
Note: resistors between µC and
L9950 are recommended to limit
currents for negative voltage
transients at VBAT (e.g. ISO
type 1 pulse).
GND
Figure 1. Package
PowerSO36
Table 1. Order Codes
Part Number
L9950
L9950TR
Package
PowerSO36
Tape & Reel
driver for mirror defroster and four 5W-light bulbs.
3 DESCRIPTION
The L9950 is a microcontroller driven multifunc-
tional door actuator driver for automotive applica-
tions.Up to five DC motors and five grounded
resistive loads can be driven with six half bridges
and five highside drivers. The integrated standard
serial peripheral interface (SPI) controls all opera-
tion modes (forward, reverse, brake and high im-
pedance).
All diagnostic informations are available via SPI.
VBAT
Reve rse
Polarity
10k Protection
OUT1 xy-Mirror
Motors
MOUT2
Note: value of capacitor has to be
choosen carefully to limit the VS
VS voltage below absolute maximum
ratings in case of an unexpected
freewheeling condition (e.g. TSD,
POR)
MOUT3
MOUT4
OUT5 Lock
MOUT6
Safe Lock
OUT7
OUT8
M
Mirror Fold
Exteriour Light
Footstep Light
OUT9
Safety Light
OUT10
OUT11
Turn Indicator
Defroster
July 2004
REV. 3
1/23
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Pages | Pages 23 | ||
Télécharger | [ L9950 ] |
No | Description détaillée | Fabricant |
L9950 | DOOR ACTUATOR DRIVER | STMicroelectronics |
L9950TR | DOOR ACTUATOR DRIVER | STMicroelectronics |
L9951 | DOOR ACTUATOR DRIVER | STMicroelectronics |
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