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PDF L9954 Data sheet ( Hoja de datos )

Número de pieza L9954
Descripción Door actuator driver
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



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No Preview Available ! L9954 Hoja de datos, Descripción, Manual

L9954
L9954XP
Door actuator driver
Features
Three half bridges for 1.5A load (Ron=800mΩ)
One highside driver for 6A load (Ron=100mΩ)
Two highside drivers for 1.5A load (Ron=800mΩ)
Programmable softstart function to drive loads
with higher inrush currents (i.e. current >6A,
>1.5A)
Very low current consumption in standby mode
(IS < 6µA typ; Tj 85 °C)
All outputs short circuit protected
Current monitor output for highside OUT1,
OUT4, OUT5 and OUT6
All outputs over temperature protected
Open load diagnostic for all outputs
Overload diagnostic for all outputs
PWM control of all outputs
Charge pump output for reverse polarity
protection
PowerSO-36
PowerSSO-36
Applications
Door actuator driver with bridges for mirror axis
control and highside driver for mirror defroster
and two 10W-light bulbs.
Description
The L9954 and L9954XP are microcontroller
driven, multifunctional door actuator drivers for
automotive applications. Up to two DC motors
and three grounded resistive loads can be driven
with three half bridges and three highside drivers.
The integrated standard serial peripheral interface
(SPI) controls all operation modes (forward,
reverse, brake and high impedance). All
diagnostic information is available via the SPI.
Table 1. Device summary
Package
PowerSO-36
PowerSSO-36
May 2010
Tube
L9954
L9954XP
Order codes
Tape and reel
L9954TR
L9954XPTR
Doc ID 14279 Rev 3
1/37
www.st.com
1
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L9954 pdf
L9954 / L9954XP
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SPI - transfer timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SPI - input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SPI - DO valid data delay time and valid time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SPI - DO enable and disable time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SPI - driver turn on / off timing, minimum CSN HI time. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SPI - timing of status bit 0 (fault condition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Example of programmable softstart function for inductive loads . . . . . . . . . . . . . . . . . . . . 22
Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PowerSO-36™ package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PowerSSO-36™ package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PowerSO-36TM tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PowerSO-36TM tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PowerSSO-36TM tube shipment (no suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PowerSSO-36TM tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Doc ID 14279 Rev 3
5/37

5 Page





L9954 arduino
L9954 / L9954XP
Electrical specifications
Table 8.
Symbol
Overvoltage and undervoltage detection
Parameter
Test condition
VSUV ON VS UV-threshold voltage
VSUV OFF VS UV-threshold voltage
VSUV hyst VS UV-hysteresis
VSOV OFF VS OV-threshold voltage
VSOV ON VS OV-threshold voltage
VSOV hyst VS OV-hysteresis
VPOR OFF Power-On-reset threshold
VPOR ON Power-On-reset threshold
VPOR hyst Power-On-reset hysteresis
VS increasing
VS decreasing
VSUV ON - VSUV OFF
VS increasing
VS decreasing
VSOV OFF - VSOV ON
VCC increasing
VCC decreasing
VPOR OFF - VPOR ON
Min. Typ. Max Unit
5.7 7.2 V
5.5 6.9 V
0.5 V
18 24.5 V
17.5 23.5 V
1V
4.4 V
3.1 V
0.3 V
Table 9.
Symbol
Current monitor output
Parameter
Test condition
Min. Typ. Max. Unit
VCM Functional voltage range VCC = 5V
0 4V
ICM,r
Current monitor output
ratio:
ICM / IOUT1,4,5,6
0V VCM 4V, VCC=5V
--------1---------
10.000
-
ICM acc
Current monitor accuracy
0 V VCM 3.8V,
VCC = 5V, IOut,min=500mA,
IOut max = 6A
(FS = full scale= 600μA)
4% + 8% +
1%FS 2%FS
-
Table 10. Charge pump output
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
VCP
Charge pump output
voltage
ICP
Charge pump output
current
VS = 8V, ICP = -60μA
VS = 10V, ICP = -80μA
VS 12V, ICP = -100μA
VS+6
VS+8
VS+10
VCP = VS+10V, VS =13.5V 95
VS+13
VS+13
VS+13
150 300
V
V
V
µA
Doc ID 14279 Rev 3
11/37

11 Page







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