L9950XP ,Door actuator driverapplications.Up to five DC motors and ■ Seperated half bridges for door lock motorfive grounded res ..
L9950XP ,Door actuator driverFunctional description of the SPI . . . . . 244.1 Serial Peripheral Interface (SPI) 244.2 C ..
L9950XPTR ,Door actuator driverelectrical characteristics . 143 Application information . . . . . 203.1 Dual power suppl ..
L9950XPTR ,Door actuator driverAbsolute maximum ratings . . 9Table 4. ESD protection . . . 9Table 5. Thermal data ..
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L9951 ,DOOR ACTUATOR DRIVERFEATURES■ One half bridge for 7.4A load (r = 150mΩ )on■ Two half bridges for 5A load (r = 200mΩ )on ..
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LC7527 ,Graphic Equalizer SystemAbsolute Maximum Ratings at Ta = 25°C, V = 0 VSSParameter Symbol Conditions Ratings UnitMaximum sup ..
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L9950XP-L9950XPTR
Door actuator driver
September 2013 Doc ID 10311 Rev 11 1/39
L9950
L9950XPDoor actuator driver
Features One full bridge for 6A load (Ron=150 m ) Two half bridges for 3A load (Ron=300 m ) Two half bridges for 1.5A load (Ron=800 m ) One highside driver for 6A load (Ron=100 m ) Four highside drivers for 1.5 A load
(Ron=800 m ) Programmable softstart function to drive loads
with higher inrush currents (i.e. current A,>3 A,>1.5A) Very low current consumption in standby mode
(IS < 6 A typ; ICC <25 A typ; Tj 85 °C) All outputs short circuit protected Current monitor output for 300 m, 150 m
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.
DescriptionThe 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
Contents L9950 - L9950XP2/39 Doc ID 10311 Rev 11
Contents Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 T emperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 SPI - electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.1 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 T emperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 21
3.7 Open-load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.8 Over load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.9 Current monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.10 PWM inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.11 Cross current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.12 Programmable soft start function to drive loads with higher inrush current . 22
Functional description of the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.1 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.5 Serial clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.6 Input data register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
L9950 - L9950XP ContentsDoc ID 10311 Rev 11 3/39
4.7 Status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.8 T est mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326.1 ECOPACK® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.2 PowerSO-36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.3 PowerSSO-36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.4 PowerSO-36 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.5 PowerSSO-36 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
List of tables L9950 - L9950XP
4/39 Doc ID 10311 Rev 11
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. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 - OUT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 12. Delay time from standby to active mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 13. Inputs: CSN, CLK, PWM1/2 and DI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 14. DI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 15. DO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 16. DO timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 17. CSN timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 18. Test mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 19. SPI - input data and status registers 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 20. SPI - input data and status registers 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 21. PowerSO-36 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 22. PowerSSO-36 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 23. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
L9950 - L9950XP List of figures
Doc ID 10311 Rev 11 5/39
List of figures
Figure 1. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. SPI - transfer timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 4. SPI - input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5. SPI - DO valid data delay time and valid time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 6. SPI - DO enable and disable time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 7. SPI - driver turn-on/off timing, minimum csn hi time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 8. SPI - timing of status bit 0 (fault condition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9. Example of programmable soft start function for inductive loads . . . . . . . . . . . . . . . . . . . . 23
Figure 10. Packages thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 11. PowerSO-36 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 12. PowerSSO-36 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 13. PowerSO-36 tube shipment (no suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 14. PowerSO-36 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 15. PowerSSO-36 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 16. PowerSSO-36 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Block diagram and pin description L9950 - L9950XP Block diagram and pin description
Figure 1. Block diagram
Table 2. Pin definitions and functions
L9950 - L9950XP Block diagram and pin description
Doc ID 10311 Rev 11 7/39
Table 2. Pin definitions and functions (continued)
Block diagram and pin description L9950 - L9950XP Doc ID 10311 Rev 11
Figure 2. Configuration diagram (top view)
Table 2. Pin definitions and functions (continued)
L9950 - L9950XP Electrical specifications
Doc ID 10311 Rev 11 9/39
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.
2.2 ESD protection
2.3 Thermal data
Table 3. Absolute maximum ratings
Table 4. ESD protection HBM according to CDF-AEC-Q100-002. HBM with all unzapped pins grounded.
Table 5. Thermal data
Electrical specifications L9950 - L9950XP
10/39 Doc ID 10311 Rev 11
2.4 Temperature warning and thermal shutdown
2.5 Electrical characteristics
VS = 8 to 16 V, VCC = 4.5 to 5.3 V, 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 6. Temperature warning and thermal shutdown
Table 7. Supply
L9950 - L9950XP Electrical specifications
Doc ID 10311 Rev 11 11/39
Table 8. Overvoltage and under voltage detection
Table 9. Current monitor output
Table 10. Charge pump output
Electrical specifications L9950 - L9950XP
12/39 Doc ID 10311 Rev 11
Table 11. OUT1 - OUT11
L9950 - L9950XP Electrical specifications
Doc ID 10311 Rev 11 13/39
Table 11. OUT1 - OUT11 (continued)
Electrical specifications L9950 - L9950XP
14/39 Doc ID 10311 Rev 11
2.6 SPI - electrical characteristics
VS = 8 to 16 V, VCC = 4.5 to 5.3 V, 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.
Note: Value of input capacity is not measured in production test. Parameter guaranteed by design.
Table 11. OUT1 - OUT11 (continued)
Table 12. Delay time from standby to active mode
Table 13. Inputs: CSN, CLK, PWM1/2 and DI
L9950 - L9950XP Electrical specifications
Doc ID 10311 Rev 11 15/39
Note: DI timing parameters tested in production by a passed/failed test:
Tj=-40 °C/+25 °C: SPI communication @2 MHZ.
Tj=+125 °C: SPI communication @1.25 MHZ.
Table 14. DI timing
Table 15. DO Value of input capacity is not measured in production test. Parameter guaranteed by design.
Electrical specifications L9950 - L9950XP
16/39 Doc ID 10311 Rev 11
Figure 3. SPI - transfer timing diagram
Table 16. DO timing
Table 17. CSN timing
L9950 - L9950XP Electrical specifications
Doc ID 10311 Rev 11 17/39
Figure 4. SPI - input timing
Figure 5. SPI - DO valid data delay time and valid time
Electrical specifications L9950 - L9950XP Doc ID 10311 Rev 11
Figure 6. SPI - DO enable and disable time
Figure 7. SPI - driver turn-on/off timing, minimum csn hi time
L9950 - L9950XP Electrical specifications
Doc ID 10311 Rev 11 19/39
Figure 8. SPI - timing of status bit 0 (fault condition)
Application information L9950 - L9950XP
20/39 Doc ID 10311 Rev 11
3 Application information
3.1 Dual power supply: VS and V CC
The power supply voltage VS supplies the half bridges and the highside drivers. An internal
charge-pump is used to drive the highside switches. The logic supply voltage VCC (stabilized V) is used for the logic part and the SPI of the device.
Due to the independent logic supply voltage the control and status information will not be
lost, if there are temporary spikes or glitches on the power supply voltage. In case of power-
on (VCC increases from under voltage to VPOR OFF = 4.2 V) the circuit is initialized by an
internally generated power on reset (POR). If the voltage VCC decreases under the
minimum threshold (VPOR ON = 3.4 V), the outputs are switched to tristate (high impedance)
and the status registers are cleared.
3.2 Standby mode
The standby mode of the L9950 is activated by clearing the bit 23 of the Input Data
Register 0. All latched data will be cleared and the inputs and outputs are switched to high
impedance. In the standby mode the current at VS (VCC) is less than 6 µA (50 µA) for
CSN= high (DO in tristate). By switching the VCC voltage a very low quiescent current can
be achieved. If bit 23 is set, the device will be switched to active mode.
3.3 Inductive loads
Each half bridge is built by an internally connected highside and a lowside power DMOS
transistor. Due to the built-in reverse diodes of the output transistors, inductive loads can be
driven at the outputs OUT1 to OUT6 without external free wheeling diodes. The highside
drivers OUT7 to OUT11 are intended to drive resistive loads. Hence only a limited energy
(E<1 mJ) can be dissipated by the internal ESD diodes in freewheeling condition. For
inductive loads (L>100 µH) an external free wheeling diode connected to GND and the
corresponding output is needed.
3.4 Diagnostic functions
All diagnostic functions (over/open load, power supply over-/undervoltage, temperature
warning and thermal shutdown) are internally filtered and the condition has to be valid for at
least 32 µs (open load: 1 ms, respectively) before the corresponding status bit in the status
registers will be set. The filters are used to improve the noise immunity of the device. Open
load and temperature warning function are intended for information purpose and will not
change the state of the output drivers. On contrary, the overload and thermal shutdown
condition will disable the corresponding driver (overload) or all drivers (thermal shutdown),
respectively. Without setting the over-current recovery bits in the Input Data register, the
microcontroller has to clear the over-current status bits to reactivate the corresponding
drivers.
