ST L9953LXP User Manual
L9953LXP
Door actuator driver
Features
■ Three half bridges for 0.75A loads
(R
■ Two configurable high side driver for up to 1.5A
load (R
(R
■ One full bridge for 6A load (R
■ One highside driver for 6A load (R
■ Programmable soft start function to drive loads
with higher inrush currents (i.e. current >6A,
>1.5A)
■ Very low current consumption in standby mode
(I
■ All outputs short circuit protected
■ Current monitor output for highside OUT1,
OUT4, OUT5 and OUT8
■ All outputs over temperature protected
■ Open-load diagnostic for all outputs
■ Overload diagnostic for all outputs
■ Separated half bridges for door lock motor
■ PWM control of all outputs
■ Charge pump output for reverse polarity
protection
=1600mΩ)
DSon
=500mΩ) or 0.35A load
DSon
=1800mΩ)
on
< 6µA typ; Tj ≤ 85 °C)
S
=150mΩ)
on
on
=100mΩ)
PowerSSO-36
Applications
■ Door actuator driver with bridges for door lock,
mirror axis control, mirror fold and highside
driver for mirror defroster and two 10W-light
bulbs and/or LEDs.
Description
The L9953LXP is a microcontroller driven
multifunctional door actuator driver for automotive
applications. Up to three DC motors and three
grounded resistive loads can be driven with five
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 informations are available via SPI.
Table 1. Device summary
Order codes
Package
Tube Tape and reel
PowerSSO-36 L9953LXP L9953LXPTR
May 2010 Doc ID 16185 Rev 2 1/35
www.st.com
1
Contents L9953LXP
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 SPI - electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 Dual power supply: VS and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3 Inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4 Diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.5 Overvoltage and under voltage detection . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.6 Charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.7 Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 21
3.8 Open-load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.9 Over load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.10 Current monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.11 PWM inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.12 Cross-current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.13 Programmable soft start function to drive loads with higher inrush current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4 Functional description of the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Chip Select Not (CSN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3 Serial Data In (DI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4 Serial Data Out (DO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.5 Serial clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.6 Input data register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2/35 Doc ID 16185 Rev 2
L9953LXP Contents
4.7 Status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.8 SPI - input data and status registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5 Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.2 PowerSSO-36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.3 PowerSSO-36 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Doc ID 16185 Rev 2 3/35
List of tables L9953LXP
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5. Operating junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 6. Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 7. Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 8. Overvoltage and under voltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 9. Current monitor output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 10. Charge pump output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 11. OUT1 - OUT8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 12. Delay time from standby to active mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 13. Inputs: CSN, CLK, PWM1/2 and DI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 14. DI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 15. DO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 16. DO timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 17. CSN timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 18. SPI - input data and status registers 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 19. SPI - input data and status registers 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 20. PowerSSO-36 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 21. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4/35 Doc ID 16185 Rev 2
L9953LXP List of figures
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. SPI - transfer timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 4. SPI - input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5. SPI - DO valid data delay time and valid time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 6. SPI - DO enable and disable time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 7. SPI - driver turn on / off timing, minimum CSN hi time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 8. SPI - timing of status bit 0 (fault condition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9. Programmable soft start function for inductive loads and incandescent bulbs . . . . . . . . . . 23
Figure 10. Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 11. PowerSSO-36 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 12. PowerSSO-36
Figure 13. PowerSSO-36 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
tube shipment (no suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Doc ID 16185 Rev 2 5/35
Block diagram and pin description L9953LXP
1 Block diagram and pin description
Figure 1. Block diagram
V
BAT
Reverse Polarity
Protection
100k
*
100µF
* Note: Value of capacitor has to be choosen carefully to li mit the VS voltage below absolute
maximum ratings in case of an unexpected freewheeling condition ( e.g. TSD, POR)
VS
10k
VCC
Charge
Pump
VCC
**
1k
**
1k
**
1k
**
1k
**
1k
DO
CLK
CSN
PWM1
DI
SPI
Interface
µC
PWM2 / CM
**
1k
** Note: Resistors between µC and L9953LXP are recommended to lim it currents
for negative voltage transients at VBAT (e.g. ISO type 1 pulse)
Table 2. Pin definitions and functions
MUX
Driver Interface & Diagnostic
GND
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
M
M
M
Mirror Common
Mirror Vertical
Mirror Horizontal
Lock / Folder
Programmable
OUT7
OUT8
4
Bulb (10W) or
LED Mode
Defroster
Pin Symbol Function
Ground:
1, 18, 19, 36 GND
reference potential.
Important: for the capability of driving the full current at the outputs all
pins of GND must be externally connected.
Highside-driver-output 8
The output is built by a highside switch and is intended for resistive
loads, hence the internal reverse diode from GND to the output is
missing. For ESD reason a diode to GND is present but the energy
2, 35 OUT8
which can be dissipated is limited. The highside driver is a power
DMOS transistor with an internal parasitic reverse diode from the
output to VS (bulk-drain-diode). The output is over-current and openload protected.
Important: for the capability of driving the full current at the outputs both
pins of OUT8 must be externally connected.
6/35 Doc ID 16185 Rev 2
L9953LXP Block diagram and pin description
Table 2. Pin definitions and functions (continued)
Pin Symbol Function
Half-bridge-output 1,2,3
3
4
5
6, 7, 14, 15,
23, 25, 28, 32
8DI
9
10 CSN
11 DO
12 VCC
13 CLK
OUT1
OUT2
OUT3
VS
CM/PWM2
The output is built by a highside and a lowside switch, which are
internally connected. The output stage of both switches is a power
DMOS transistor. Each driver has an internal parasitic reverse diode
(bulk-drain-diode: highside driver from output to VS, lowside driver from
GND to output). This output is over-current and open-load protected.
Power supply voltage (external reverse protection required)
For this input a ceramic capacitor as close as possible to GND is
recommended.
Important: for the capability of driving the full current at the outputs all
pins of VS must be externally connected.
Serial data input
The input requires CMOS logic levels and receives serial data from the
microcontroller. The data is an 24bit control word and the least
significant bit (LSB, bit 0) is transferred first.
Current monitor output/PWM2 input
Depending on the selected multiplexer bits of input data register this
output sources an image of the instant current through the
corresponding highside driver with a ratio of 1/10.000. This pin is
bidirectional. The microcontroller can overdrive the current monitor
signal to provide a second PWM input for the output OUT7.
Chip select not input / test mode
This input is low active and requires CMOS logic levels. The serial data
transfer between L9953LXP and micro controller is enabled by pulling
the input CSN to low level. If an input voltage of more than 7.5V is
applied to CSN pin the L9953LXP will be switched into a test mode.
Serial data output
The diagnosis data is available via the SPI and this 3-state output. The
output will remain in 3-state, if the chip is not selected by the input CSN
(CSN = high)
Logic supply voltage
For this input a ceramic capacitor as close as possible to GND is
recommended.
Serial clock input
This input controls the internal shift register of the SPI and requires
CMOS logic levels.
16, 17, 20, 21
26 CP
27 PWM1
OUT4
OUT5
Half-bridge-output 4,5:
Important: for the capability of driving the full current at the outputs both
pins of OUT4 (OUT5, respectively) must be externally connected.
Charge pump output
This output is provided to drive the gate of an external n-channel
PowerMOS used for reverse polarity protection
PWM1 input:
This input signal can be used to control the drivers OUT1-OUT6 and
OUT8 by an external PWM signal.
Doc ID 16185 Rev 2 7/35
→ see OUT1 (pin 3).
Block diagram and pin description L9953LXP
/
Table 2. Pin definitions and functions (continued)
Pin Symbol Function
Highside-driver-output 6,7:
Each output is built by a highside switch and is intended for resistive
31
33
22, 24, 29,
30, 34
OUT6,
OUT7
NC Not connected pins.
loads, hence the internal reverse diode from GND to the output is
missing. For ESD reason a diode to GND is present but the energy
which can be dissipated is limited. Each highside driver is a power
DMOS transistor with an internal parasitic reverse diode from each
output to VS (bulk-drain-diode). Each output is over-current and openload protected.
Figure 2. Configuration diagram (top view)
1
CM
GND
OUT8
OUT1
OUT2
OUT3
Vs
Vs
DI
PWM2
CSN
DO
Vcc
CLK
Vs
Vs
OUT4
OUT4
GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PowerSSO-36
35
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
GND 36
OUT8
NC 34
OUT7
Vs
OUT6
NC
NC
Vs
PWM1
CP
Vs
NC
Vs
NC
OUT5
OUT5
GND
8/35 Doc ID 16185 Rev 2
L9953LXP Electrical specifications
2 Electrical specifications
2.1 Absolute maximum ratings
Stressing the device above the rating listed in the “Absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality document
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
S
V
CC
V
, V
DI
DO, VCLK
V
CSN, Vpwm1
V
CM
V
CP
I
OUT1,2,3,6,7
I
OUT4,5,8
,
2.2 ESD protection
Table 4. ESD protection
All pins ± 2
Output pins: OUT1 - OUT8 ± 8
1. HBM according to MIL 883C, Method 3015.7 or EIA/JESD22-A114-A.
2. HBM with all unzapped pins grounded.
DC supply voltage -0.3 to28 V
Single pulse t
< 400ms 40 V
max
Stabilized supply voltage, logic supply -0.3 to 5.5 V
Digital input / output voltage -0.3 to V
+ 0.3 V
CC
Current monitor output -0.3 to VCC + 0.3 V
Charge pump output -25 to VS + 11 V
Output current ±5 A
Output current ±10 A
Parameter Value Unit
(1)
(2)
kV
kV
2.3 Thermal data
Table 5. Operating junction temperature
Symbol Parameter Value Unit
T
Operating junction temperature -40 to 150 °C
j
Doc ID 16185 Rev 2 9/35
Electrical specifications L9953LXP
Table 6. Temperature warning and thermal shutdown
Symbol Parameter Min. Typ. Max. Unit
T
jTW On
T
jSD On
T
jSD Off
T
jSD Hys
Temperature warning threshold junction
temperature
Thermal shutdown threshold junction
temperature
Thermal shutdown threshold junction
temperature
Thermal shutdown hysteresis 5 °K
2.4 Electrical characteristics
VS = 8 to 16V, VCC = 4.5 to 5.3V, Tj = - 40 to 150°C, unless otherwise specified.
The voltages are referred to GND and currents are assumed positive, when the current
flows into the pin.
Table 7. S upp l y
Symbol Parameter Test condition Min. Typ. Max. Unit
V
Operating supply voltage
S
range
VS DC supply current
increasing
decreasing
V
= 16V, VCC = 5.3V
S
active mode
OUT1 - OUT8 floating
130 150 °C
T
j
Tj
Tj
150 °C
170 °C
728V
720mA
I
S
quiescent supply current
V
S
VCC DC supply current
I
CC
quiescent supply
V
CC
current
IS + I
1. Guaranteed by design.
Sum quiescent supply
CC
current
V
= 16V, VCC = 0V
S
standby mode
OUT1 - OUT8 floating
= -40°C, 25°C
T
test
= 85°C
CC ,
CC
(1)
active mode
standby mode
T
test
V
= 16V, VCC = 5.3V
S
CSN = V
= 16V, VCC = 5.3V
V
S
CSN = V
OUT1 - OUT8 floating
VS = 16V, VCC = 5.3V
CSN = V
CC
standby mode
OUT1 - OUT8 floating
= 130°C
T
test
412µA
625µA
13mA
25 50 µA
50 200 µA
10/35 Doc ID 16185 Rev 2
L9953LXP Electrical specifications
Table 8. Overvoltage and under voltage detection
Symbol Parameter Test condition Min. Typ. Max Unit
V
SUV On
V
SUV Off
V
SUV Hyst
V
SOV Off
V
SOV On
V
SOV Hyst
V
POR Off
V
POR On
V
POR Hyst
Table 9. Current monitor output
VS UV-threshold voltage VS increasing 5.7 7.2 V
VS UV-threshold voltage VS decreasing 5.5 6.9 V
VS UV-hysteresis V
SUV On
- V
SUV Off
0.5 V
VS OV-threshold voltage VS increasing 18 24.5 V
VS OV-threshold voltage VS decreasing 17.5 23.5 V
VS OV-hysteresis V
SOV Off
- V
SOV On
1V
Power-on reset threshold VCC increasing 4.4 V
Power-on reset threshold VCC decreasing 3.1 V
Power-on reset hysteresis V
POR Off
- V
POR On
0.3 V
Symbol Parameter Test condition Min. Typ. Max. Unit
V
I
CM,r
I
CM acc
Functional voltage range VCC = 5V 0 4 V
CM
Current monitor output
ratio:
I
CM/IOUT 4,5,8
Current monitor output
ratio:
I
CM/IOUT1
Current monitor accuracy
Acc ICM/I
OUT 4,5,8
Current monitor accuracy
Acc ICM/I
OUT 1
0V ≤ V
CM
0 V ≤ V
CM
= 5V,
V
CC
I
Out,min 4,5,8
I
Out max 4,5,8
0 V ≤ V
CM
= 5V,
V
CC
I
Out,min 1
I
Out max 1
= 60mA,
≤ 4V, VCC=5V
≤ 3.8V,
= 0.5A,
= 5.9A
≤ 3.8V,
= 0.6A
1
----------------
10000
1
------------ -
4000
4% +
1%FS
8% +
2%FS
-
-
-
Table 10. Charge pump output
Symbol Parameter Test condition Min. Typ. Max. Unit
VS = 8V, I
V
I
Charge pump output
CP
voltage
Charge pump output
CP
current
V
= 10V, I
S
≥ 12V, ICP = -100µA VS+10 VS+13 V
V
S
= VS+10V, VS =13.5V 95 150 300 µA
V
CP
= -60µA VS+6 VS+13 V
CP
= -80µA VS+8 VS+13 V
CP
Doc ID 16185 Rev 2 11/35
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