L9950
L9950XP
Door actuator driver
Features
■
■
■
■
One full bridge for 6A load (R
on
=150 mΩ )
Two half bridges for 3A load (R
on
=300 mΩ )
Two half bridges for 1.5A load (R
on
=800 mΩ )
One highside driver for 6A load (R
on
=100 mΩ )
■
Four highside drivers for 1.5 A load
(R
on
=800 mΩ )
■
PowerSO-36
PowerSSO-36
Programmable softstart function to drive loads
with higher inrush currents (i.e. current
>6 A,>3 A,>1.5 A)
Very low current consumption in standby mode
(I
S
< 6
μA
typ; I
CC
<25
μA
typ; T
j
≤
85 °C)
All outputs short circuit protected
Current monitor output for 300 mΩ, 150 mΩ
and 100 m 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
Applications
■
■
■
■
■
■
■
■
■
■
Door actuator driver with bridges for door lock
and safe lock, mirror axis control, mirror fold
and highside driver for mirror defroster and four
10W-light bulbs.
Description
The L9950 and L9950XP are microcontroller
driven multifunctional door actuator driver for
automotive applications.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 operation modes (forward,
reverse, brake and high impedance). All
diagnostic informations are available via SPI.
Table 1.
Device summary
Order codes
Package
Part number (tube)
PowerSO-36
PowerSSO-36
L9950
L9950XP
Part number (tape and reel)
L9950TR
L9950XPTR
June 2009
Doc ID 10311 Rev 10
1/39
1
STMICROELECTRONICS [ STMICROELECTRONICS ]
