L99DZ70XP ,Door actuator driver with 6 bridges for double door lock control, mirror fold and mirror axis control, highside driver for mirroAbsolute maximum ratings . 10Table 4. ESD protection . . 10Table 5. Operating junction ..
L99DZ70XPTR ,Door actuator driver with 6 bridges for double door lock control, mirror fold and mirror axis control, highside driver for mirroGeneral description . 294.1.1 Chip Select Not (CSN) . . . . . . 294.1.2 Serial Data In (D ..
L99DZ80EP ,Door actuator driverapplications. Up to five DC motors and five grounded resistive loads can be driven with six ■ Centr ..
L99H01QF ,Motor bridge driver for automotive applicationsFunctional description of the SPI . . . . . 314.1 Signal description . . . 314.1.1 Serial ..
L99LD01 ,High Efficiency Constant Current Led DriverApplicationsAutomotive day time running light, LED • Automotive qualifiedHeadLamps• Constant curren ..
L99MC6-LF , Configurable 6-channel device
LC7527 ,Graphic Equalizer SystemAbsolute Maximum Ratings at Ta = 25°C, V = 0 VSSParameter Symbol Conditions Ratings UnitMaximum sup ..
LC7533 ,3V Electronic Volume ControlPin AssignmentNote 1 : No bonding exists on the inside of NC pin.It is recommended that the outside ..
LC75341 ,Single-Chip Volume and Tone Control SystemAbsolute Maximum Ratings at Ta = 25°C, V = 0 VSSParameter Symbol Pin Conditions Ratings UnitMaximum ..
LC75341 ,Single-Chip Volume and Tone Control SystemElectrical Characteristics at Ta = 25°C, V = 9 V, V = 0 VDD SSInput BlockRatingsParameter Symbol Pi ..
LC75341M ,Single-Chip Volume and Tone Control SystemElectrical Characteristics at Ta = 25°C, V = 9 V, V = 0 VDD SSInput BlockRatingsParameter Symbol Pi ..
LC75342 ,Single-Chip Volume and Tone Control SystemElectrical Characteristics at Ta = 25°C, V = 9 V, V = 0 VDD SSInput BlockRatingsParameter Symbol Pi ..
L99DZ70XP-L99DZ70XPTR
Door actuator driver with 6 bridges for double door lock control, mirror fold and mirror axis control, highside driver for mirro
September 2013 Doc ID 15162 Rev 4 1/47
L99DZ70XPDoor actuator driver
Features One full bridge for 6 A load (Ron = 150 mΩ) Two half bridges for 3 A load (Ron = 300 mΩ) Two half bridges for 0.75 A load
(Ron= 1600 mΩ) One highside driver for 6 A load (Ron =90 mΩ) Two configurable highside drivers for up to
1.5 A load (Ron =500 mΩ) or 0.4A
(Ron= 1800 mΩ) Two highside drivers for 0.5 A load
(Ron= 1600 mΩ) Programmable softstart function to drive loads
with higher inrush currents as current limitation
value Very low current consumption in standby mode
(IS <6µA typ; Tj ≤ 85 °C; ICC < 5 µA typ; ≤85 °C) Current monitor output for all highside drivers Device contains temperature warning and
protection Openload detection for all outputs Over-current protection for all otputs Separated half bridges for door lock motor PWM control of all outputs Charge pump output for reverse polarity
protection STM standard serial peripheral interface (ST-
SPI 3.0) Control block for electrochromic element
Applications Door actuator driver with 6 bridges for double
door lock control, mirror fold and mirror axis
control, highside driver for mirror defroster,
bulbs and LEDs (replacement for L9950).
Control block with external MOS transistor for
charging / discharging of electrochromic glass.
DescriptionThe L99DZ70XP is a 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. An
electrochromic mirror glass can be controlled
using the integrated SPI-driven module in
conjunction with an external MOS transistor. The
integrated SPI controls all operating modes
(forward, reverse, brake and high impedance).
Also all diagnostic information is available via SPI
read.
Table 1. Device summary
Contents L99DZ70XP2/47 Doc ID 15162 Rev 4
Contents Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4.1 Outputs OUT1 - OUT11, ECV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 SPI - Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.1 Dual power supply: VS and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2 Wake up and active mode / standby mode . . . . . . . . . . . . . . . . . . . . . . . 24
3.3 Charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4 Diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5 Overvoltage and undervoltage detection at VS . . . . . . . . . . . . . . . . . . . . 25
3.6 Overvoltage and undervoltage detection at V CC . . . . . . . . . . . . . . . . . . . 25
3.7 Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 25
3.8 Inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.9 Open load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.10 Over-load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.11 Current monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.12 PWM inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.13 Cross-current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.14 Programmable soft-start function to drive loads with higher inrush current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.15 Controller for electrochromic glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Functional description of the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.1 Chip Select Not (CSN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.2 Serial Data In (DI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
L99DZ70XP ContentsDoc ID 15162 Rev 4 3/47
4.1.3 Serial Clock (CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.4 Serial Data Out (DO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.5 SPI communication flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2 Command byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.1 Operation code definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3 Global status byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.4 Address mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SPI - control and status registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345.1 Control register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2 Control register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3 Control register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.4 Control register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.5 Status register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.6 Status register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.7 Status register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.8 Configuration register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Packages thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.2 PowerSSO-36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.3 PowerSSO-36 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
List of tables L99DZ70XP
4/47 Doc ID 15162 Rev 4
List of tables
Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin definition and functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4. ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 5. Operating junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 6. Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 7. Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 8. Overvoltage and under voltage detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 9. Current monitor output CM / PWM 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 10. Charge pump output CP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 11. On-resistance and switching times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 12. Current monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 13. Electrochrome control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 14. Delay time from standby to active mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 15. Inputs: CSN, CLK, PWM1/2 and DI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 16. SDI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 17. DO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 18. DO timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 19. CSN timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 20. SPI frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 21. Operation code definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 22. Global status byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 23. RAM memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 24. ROM memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 25. Control register 0 (read/write) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 26. Control register 1 (read/write) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 27. Control register 2 (read/write) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 28. Control register 3 (read/write) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 29. Status register 0 (read). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 30. Status register 1 (read). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 31. Status register 2 (read). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 32. Configuration register (read/write) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 33. PowerSSO-36 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 34. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
L99DZ70XP List of figures
Doc ID 15162 Rev 4 5/47
List of figures
Figure 1. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3. Electrochrome control block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 4. SPI - Transfer timing diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5. SPI - Input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 6. SPI - DO valid data delay time and valid time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 7. SPI - DO enable and disable time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 8. SPI - driver turn on/off timing, minimum CSN HI time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 9. Example of programmable soft-start function for inductive loads . . . . . . . . . . . . . . . . . . . . 27
Figure 10. Write and read SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 11. Global error flag definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 12. Packages thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 13. PowerSSO-36 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 14. PowerSSO-36 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 15. PowerSSO-36 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Block diagram and pin description L99DZ70XP Block diagram and pin description
Figure 1. Block diagram
Table 2. Pin definition and functions
L99DZ70XP Block diagram and pin description
Doc ID 15162 Rev 4 7/47
Table 2. Pin definition and functions (continued)
Block diagram and pin description L99DZ70XP
8/47 Doc ID 15162 Rev 4
Table 2. Pin definition and functions (continued)
L99DZ70XP Block diagram and pin description
Doc ID 15162 Rev 4 9/47
Figure 2. Configuration diagram (top view)
Note: All pins with the same name must be externally connected.
Electrical specifications L99DZ70XP
10/47 Doc ID 15162 Rev 4
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
Table 3. Absolute maximum ratings
Table 4. ESD protection HBM according to MIL 883C, Method 3015.7 or EIA/JESD22-A114-A. HBM with all unzapped pins grounded.
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 11/47
2.3 Thermal data
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 5. Operating junction temperature
Table 6. Temperature warning and thermal shutdown
Table 7. Supply
Electrical specifications L99DZ70XP
12/47 Doc ID 15162 Rev 4
This parameter is guaranteed by design. CM/ PWM 2 = VCC or 0 V.
Table 8. Overvoltage and under voltage detection
Table 9. Current monitor output CM / PWM 2
Table 7. Supply (continued)
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 13/47
2.4.1 Outputs OUT1 - OUT11, ECV
FS (full scale)= IOUTmax * ICM,r .
Table 10. Charge pump output CP
Table 9. Current monitor output CM / PWM 2 (continued)
Table 11. On-resistance and switching times
Electrical specifications L99DZ70XP
14/47 Doc ID 15162 Rev 4
Table 11. On-resistance and switching times (continued)
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 15/47
Table 11. On-resistance and switching times (continued)
Electrical specifications L99DZ70XP
16/47 Doc ID 15162 Rev 4
Rload = 16Ω at OUT1, 6 and 7,8 in low on-resistance mode. Rload = 4Ω at OUT4, 5 and 11. Rload = 64Ω at OUT2, 3, 9, 10, ECV and 7, 8 in high On-resistance mode. tcc is the switch-on delay time if complement in half bridge has to switch-off.
Table 12. Current monitoring
Table 11. On-resistance and switching times (continued)
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 17/47
Table 13. Electrochrome control
Table 12. Current monitoring (continued)
Electrical specifications L99DZ70XP
18/47 Doc ID 15162 Rev 4
2.5 SPI - Electrical characteristics
VS = 8 to 16V, VCC = 4.5 to 5.5V, 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. Bit 7 to 2 = ‘1’ control register 1: ECV voltage, where IIECDR can change sign. 1 LSB (Least Significant Bit)= 23.8 mV.V target is set by bit 7 to 2 of control register 1 and bit 0 of control register 2; tested for each individual bit.
Table 13. Electrochrome control (continued)
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 19/47
Table 14. Delay time from standby to active mode
Table 15. Inputs: CSN, CLK, PWM1/2 and DI Value of input capacity is not measured in production test. Parameter guaranteed by design.
Table 16. SDI timing(1)
Electrical specifications L99DZ70XP
20/47 Doc ID 15162 Rev 4
DI timing parameters tested in production by a passed / failed test:
Tj= -40°C / +25°C: SPI communication @ 2MHz.
Tj= +125°C SPI communication @ 1.25 MHz.
Table 17. DO Value of input capacity is not measured in production test. Parameter guaranteed by design.
Table 18. DO timing
Table 16. SDI timing (continued)(1)
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 21/47
Figure 4. SPI - Transfer timing diagram
Figure 5. SPI - Input timing
Table 19. CSN timing
Electrical specifications L99DZ70XP Doc ID 15162 Rev 4
Figure 6. SPI - DO valid data delay time and valid time
Figure 7. SPI - DO enable and disable time
L99DZ70XP Electrical specifications
Doc ID 15162 Rev 4 23/47
Figure 8. SPI - driver turn on/off timing, minimum CSN HI time
Application information L99DZ70XP
24/47 Doc ID 15162 Rev 4
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 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.
3.2 Wake up and active mode / standby mode
After power up of VS and Vcc the device operates in standby-mode. Pulling the signal CSN
to low level wakes the device up and the analog part will be activated (active mode).
After at least 10µs, the first SPI communication is valid and bit 0 of the Control Register 0
can be used to set the EN-mode. If bit 0 is not set to 1, the device doesn't remain in the
active mode. After at least 256µs all latched data will be cleared and the inputs and outputs
are switched to high impedance. In standby mode the current at VS (VCC) is less than 6 µA
(5 µA) for CSN= high (DO in tristate).
3.3 Charge pump
In standby mode the chargepump is turned off. After enabling the device by SPI command
(bit0=1 Control Register 0) the oscillator starts and the voltage begins to increase. The
output drivers are enabled after at least 256 µs after CSN went to high.
3.4 Diagnostic functions
All diagnostic functions (over/under-current, power supply over-/undervoltage, temperature
warning and thermal shutdown) are internally filtered. The condition has to be valid for at
least 32 µs (open load: 1ms) before the corresponding status bit in the status registers is
set.
The filters are used to improve the noise immunity of the device. The under-current and
temperature warning functions are intended for information purpose and will not change the
state of the output drivers. On contrary, the over-current condition disables the
corresponding driver and thermal shutdown disables all drivers. 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.
