with higher inrush currents (i.e. current >6A,
>1.5A)
■ Very low current consumption in standby mode
(I
< 6µA typ; Tj ≤ 85 °C)
S
■ 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
=800mΩ)
on
=100mΩ)
on
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.
* 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
VCC
10k
Charge
Pump
VCC
**
1k
**
1k
**
1k
**
1k
**
1k
DO
CLK
CSN
PWM1
DI
SPI
Interface
Driver Interface & Diagnostic
µC
PWM2 / CM
**
1k
** Note: Resistors between µC and L9954LXP are recommended to limit currents
for negative voltage transients at VBAT ( e.g. ISO type 1 pulse)
Table 2.Pin definitions and functions
MUX
GND
PinSymbolFunction
OUT1
OUT2
OUT3
M
M
Mirror Common
Mirror Vertical
Mirror Horizontal
Lock / Folder
OUT4
Programmable
OUT5
OUT6
4
Bulb (10W) or
LED Mode
Defroster
Ground :
1, 18, 19, 36GND
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 6
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, 35OUT6
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 open
load protected.
Important: for the capability of driving the full current at the outputs both
pins of OUT6 must be externally connected.
6/37 Doc ID 14279 Rev 3
L9954 / L9954XPBlock diagram and pin description
Table 2.Pin definitions and functions (continued)
PinSymbolFunction
Half-bridge-output 1,2,3
3
4
5
6, 7, 14, 25,
28, 32
OUT1
OUT2
OUT3
V
8DI
9
CM/PWM2
10CSN
11DO
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.
S
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 OUT5.
Chip select not input / testmode
This input is low active and requires CMOS logic levels. The serial data
transfer between L9954 and micro controller is enabled by pulling the
input CSN to low level.
Serial data output
The diagnosis data is available via the SPI and this tristate-output. The
output will remain in tristate, if the chip is not selected by the input CSN
(CSN = high)
Logic supply voltage
12V
CC
For this input a ceramic capacitor as close as possible to GND is
recommended.
Serial clock input
13CLK
This input controls the internal shift register of the SPI and requires
CMOS logic levels.
Charge pump output
26CP
This output is provided to drive the gate of an external n-channel power
MOS used for reverse polarity protection.
PWM1 input
27PWM1
This input signal can be used to control the drivers OUT1-OUT4 and
OUT6 by an external PWM signal.
Doc ID 14279 Rev 37/37
Block diagram and pin descriptionL9954 / L9954XP
/
Table 2.Pin definitions and functions (continued)
PinSymbolFunction
Highside-driver-output 4 and 5
Each output is built by a highside switch and is intended for resistive
loads, hence the internal reverse diode from GND to the output is
31
33
OUT4,
OUT5
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 open
load protected.
15, 16, 17, 20,
21, 22, 23, 24,
NCNot connected pins.
29, 30, 34
Figure 2.Configuration diagram (top view)
1
CM
GND
OUT6
OUT1
OUT2
OUT3
Vs
Vs
DI
PWM2
CSN
DO
Vcc
CLK
Vs
NC
NC
NC
GND
2
3
4
5
6
7
8
9
10
PowerSO-36
PowerSSO-36
11
12
13
14
15
16
17
18
35
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
GND 36
OUT6
NC 34
OUT5
Vs
OUT4
NC
NC
Vs
PWM1
CP
Vs
NC
NC
NC
NC
NC
GND
8/37 Doc ID 14279 Rev 3
L9954 / L9954XPElectrical 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
SymbolParameterValueUnit
V
S
V
CC
V
, V
DI
DO, VCLK
V
CSN, Vpwm1
V
CM
V
CP
I
OUT1,2,3,4,5
I
OUT6
,
2.2 ESD protection
Table 4.ESD protection
All pins± 2
Output pins: OUT1 - OUT6
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 to28V
Single pulse t
< 400ms40V
max
Stabilized supply voltage, logic supply-0.3 to 5.5V
Digital input / output voltage-0.3 to V
+ 0.3V
CC
Current monitor output-0.3 to VCC + 0.3V
Charge pump output-25 to VS + 11V
Output current ±5A
Output current ±10A
ParameterValueUnit
(1)
(2)
± 8
kV
kV
2.3 Thermal data
Table 5.Operating junction temperature
SymbolParameterValueUnit
T
j
Operating junction temperature-40 to 150°C
Doc ID 14279 Rev 39/37
Electrical specificationsL9954 / L9954XP
Table 6.Temperature warning and thermal shutdown
SymbolParameterMin.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 hysteresis5°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 u pply
SymbolParameterTest conditionMin.Typ.MaxUnit
V
Operating supply voltage
S
range
VS DC supply current
increasing
decreasing
V
= 16V, VCC = 5.3V
S
active mode
OUT1 - OUT6 floating
T
130150°C
j
Tj
Tj
150°C
170°C
728V
720mA
= 16V, VCC = 0V
V
I
S
V
quiescent supply current
S
VCC DC supply current
I
CC
V
quiescent supply
CC
current
I
+ I
S
1. Guaranteed by design.
Sum quiescent supply
CC
current
S
standby mode
OUT1 - OUT6 floating
T
= -40°C, 25°C
test
T
= 85°C
test
= 16V, VCC = 5.3V
V
S
CSN = V
V
= 16V, VCC = 5.3V
S
CSN = V
(1)
active mode
CC ,
standby mode
CC
OUT1 - OUT6 floating
V
= 16V, VCC = 5.3V
S
CSN = V
CC
standby mode
OUT1 - OUT6 floating
= 130°C
T
test
412µA
625µA
13mA
2550µA
50100µA
10/37 Doc ID 14279 Rev 3
L9954 / L9954XPElectrical specifications
Table 8.Overvoltage and undervoltage detection
SymbolParameterTest conditionMin.Typ.MaxUnit
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 voltageVS increasing5.77.2V
VS UV-threshold voltageVS decreasing5.56.9V
VS UV-hysteresisV
SUV ON
- V
SUV OFF
0.5V
VS OV-threshold voltageVS increasing1824.5V
VS OV-threshold voltageVS decreasing17.523.5V
VS OV-hysteresisV
SOV OFF
- V
SOV ON
1V
Power-On-reset thresholdVCC increasing4.4V
Power-On-reset thresholdVCC decreasing3.1V
Power-On-reset hysteresisV
POR OFF
- V
POR ON
0.3V
SymbolParameterTest conditionMin.Typ.Max.Unit
V
I
CM,r
I
CM acc
Functional voltage rangeVCC = 5V04V
CM
Current monitor output
ratio:
I
CM/IOUT1,4,5,6
Current monitor accuracy
0V ≤ V
0 V
V
CC
I
Out max
≤ 4V, VCC=5V-
CM
≤ V
≤ 3.8V,
CM
= 5V, I
Out,min
=500mA,
= 6A
(FS = full scale= 600
μA)
1
----------------- -
10.000
4% +
1%FS
8% +
2%FS
-
Table 10.Charge pump output
SymbolParameterTest conditionMin.Typ.Max.Unit
= 8V, I
V
V
I
Charge pump output
CP
voltage
Charge pump output
CP
current
S
V
= 10V, I
S
V
≥ 12V, I
S
V
= VS+10V, VS =13.5V95150300µA
CP
= -60μAVS+6VS+13V
CP
= -80μAVS+8VS+13V
CP
= -100μAVS+10VS+13V
CP
Doc ID 14279 Rev 311/37
Electrical specificationsL9954 / L9954XP
Table 11.OUT1 - OUT6
SymbolParameterTest conditionMin.Typ.Max.Unit
= 13.5 V, Tj = 25 °C,
V
r
ON OUT1,
r
ON OUT2
r
ON OUT3
r
ON OUT4,
r
ON OUT5
r
ON OUT6
I
OUT1
I
OUT2
I
OUT3
I
OUT1
I
OUT2
I
OUT3
I
OUT4
I
OUT5
I
OUT6
t
d ON H
t
d OFF H
t
d ON L
t
d OFF L
t
d HL
On-resistance to supply
or GND
On-resistance to supply
On-resistance to supply
Output current limitation
to GND
Output current limitation
to supply
Output current limitation
to GND
Output current limitation
to GND
Output delay time,
highside driver On
Output delay time,
highside driver Off
Output delay time,
lowside driver On
Output delay time,
lowside driver Off
Cross current protection
time, source to sink
S
I
OUT1,2,3
= ± 0.8A
VS = 13.5 V, Tj = 125 °C,
I
OUT1,2,3
V
S
I
OUT4,5
= ± 0.8 A
= 13.5 V, Tj = 25 °C,
= −0.8 A
VS = 13.5 V, Tj = 125 °C,
I
= −0.8 A
OUT4,5
VS = 13.5 V, T
= − 3 A
I
OUT6
= 25 °C,
j
VS = 13.5 V, Tj = 125 °C,
I
= −3 A
OUT6
Source, V
Sink, V
Source, V
Source, V
=13.5 V,
V
S
corresponding lowside
=13.5 V-3.0-1.5A
S
=13.5 V1.53.0A
S
=13.5 V-3.0-1.5A
S
=13.5 V-10.5-6A
S
204080µs
driver is not active
=13.5 V50150300µs
V
S
=13.5 V,
V
S
corresponding highside
153070µs
driver is not active
=13.5 V80150300µs
V
S
t
CC ONLS_OFFHS
- td
OFF H
(1)
8001100m
12501700m
500700m
700950m
100150m
150200m
200400µs
Ω
Ω
Ω
Ω
Ω
Ω
t
d LH
I
QLH
Cross current protection
time, sink to source
Switched-off output
current highside drivers of
OUT1-6
t
CC ONHS_OFFLS
V
mode
V
12/37 Doc ID 14279 Rev 3
OFF L
(1)
200400µs
0-2-5µA
- td
= 0V, standby
OUT1-6
= 0V, active mode-40-150µA
OUT1-6
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