L9952XP STMicroelectronics, L9952XP Datasheet
L9952XP
Specifications of L9952XP
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L9952XP Summary of contents
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Features ■ Two 5V low-drop voltage regulators (250mA, 100mA continuous mode ■ Low stand-by current: V BAT 45µA, (75µA in cycl. sense) ■ Window watchdog and fail-safe output ■ Interrupt output ■ Wake-up logic with cyclic contact monitoring ■ LIN ...
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Contents Contents 1 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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L9952GXP 2.18.3 2.19 LINPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Contents 7.8 High side outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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L9952GXP List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of tables Table 50. Configuration bit LEVx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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L9952GXP List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Pin definitions and functions 1 Pin definitions and functions Figure 1. Block diagram CAN CAN Microcontroller LIN For detailed information see EMC test report from ESDLIN1524BJ IBEE Zwickau Fail-safe Logic Table 2. Pins definitions and functions Pin PowerSS0-36 name GND ...
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L9952GXP Table 2. Pins definitions and functions (continued) Pin PowerSS0-36 name TxD OP2+ OP2- OP2 OUT DI DO CLK CSN PWM1 PWM2 Dig_Out3 Dig_Out4/INT Wu 4..1 OP1 OUT OP1- OP1+ Out 4..1 Out_HS Vs LINPU LIN Rel1 Rel2 FSO 7 ...
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Pin definitions and functions Figure 2. Pins configuration GND NRESET 4 INH 5 RxD 6 TxD 7 OP2+ 8 OP2 - 9 OPOUT CLK 13 CSN 14 PWM ...
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L9952GXP 2 Description 2.1 Voltage regulator The L9952GXP contains 2 independent and fully protected low drop voltage regulators, which are designed for very fast transient response. The output voltage is stable with loads capacitors > 220nF. 2.1.1 Voltage regulator: V1 ...
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Description 2.2 Power control in operating modes The L9952GXP can be operated in 4 different operating modes: ● Active ● Flash ● standby 1 ● standby BAT A cyclic monitoring of wake-up inputs is available in ...
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L9952GXP 2.3 Wake up events A wake-up from standby mode will switch the device to active mode. This can be initiated by one or more of the following sources: ● Change of the LIN state at LIN bus interfaces A ...
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Description 2.4 Functional overview (truth table) Table 4. Functional overview (truth table) Function 2.3.1 Voltage-regulator, V1 2.3.2 Voltage-regulator, V2 2.3.3 Reset-generator 2.3.4 Window watchdog 2.3.5 Wake up 2.3.6 HS-cyclic supply 2.3.7 Relay driver 2.3.8 Operational amplifiers 2.3.9 LIN line driver ...
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L9952GXP Figure 3. Operating modes, main states Flash Mode Watchdog: OFF Vpwm2>9V Note 1 Vbat Standby Mode V1: off V2: according to SPI settings Reset Generator: off (Nreset=low) Watchdog: off Fail Safe Out: low HSD, LSD: Off Note 1: only ...
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Description 2.5 Wake up inputs The de-bounced digital inputs WU1...WU4 can be used to wake up the L9952GXP from standby modes. These inputs are sensitive to any level transition (positive and negative edge) For static contact monitoring, a filter time ...
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L9952GXP 2.7 Interrupt Dig_Out4 can be configured via SPI as Interrupt output (INT) by setting Bit 20 / CR1:INT_enable=’1’. This configuration will enable the following behaviour: ● INT pin is pulled high for 2ms in case of any wake-up from ...
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Description The watchdog is triggered by toggling the trigger bit (CR0, D19). Note: The active trigger window will be reset after each correct trigger write operation. In case of reset (NReset low for 2ms) the trigger bit is set to ...
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L9952GXP 2.10 Fail safe output After power-on (Vs > V “HIGH” above the V1 threshold. FSO is set to “LOW” in case of V1 under voltage or watchdog failure. During V1-standby mode, FSO is HIGH unless a ...
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Description 2.12 V1, V2 fail The V and V regulator output voltages are monitored case of a drop below the V bits are latched. The fail bits are cleared by a dedicated SPI command. If 4ms after ...
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L9952GXP 2.15 Operational amplifiers The operational amplifiers are especially designed to be used for sensing and amplifying the voltage drop across ground connected shunt resistors. Therefore the input common mode range includes - 0.2 ... 3V. The operational amplifiers are ...
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Description 2.17 Error handling The L9952GXP provides the following 3 error handling features which are not described in the LIN Spec. V2.1, but are realized in different stand alone LIN transceivers / micro controllers to switch the application back to ...
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L9952GXP 2.19 LINPU The LINPU (LIN pull up) signal is set by L9952GXP logic in order to drive the LIN transceiver in master mode. The master mode is realized by an internal high side switch and an external diode in ...
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Description 2.20.2 Serial Data In (DI) The input pin is used to transfer data serial into the device. The data applied to the DI will be sampled at the rising edge of the CLK signal and shifted into an internal ...
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L9952GXP 3 Protection and diagnosis 3.1 Power supply fail Over and under-voltage detection on Vs. 3.1.1 Over voltage If the supply voltage Vs reaches the over voltage threshold (V ● The outputs HS1..4, OUT_HS, Rel1,2, and LIN are switched to ...
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Protection and diagnosis Figure 8. Protection and diagnosis 26/68 Tj > 155°C TSD2 All outputs: off V1: off for 1 sec ‚TSD2-bit is set (D4 SR1) 8x TSD2 (each TSD2 within 1 min) SPI command: ‚CLR’ Power-on reset Vbatstdby All ...
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L9952GXP 3.4 High side driver outputs The component provides a total of 4 high side outputs Out1...4, (7 Ω typ. @ 25C) to drive e.g. LED hall sensors and 1 high side output OUT_HS with 1 Ω typ. ...
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Absolute maximum ratings 4 Absolute maximum ratings Table 5. Absolute maximum ratings Symbol CLK V V TXD CSN RXD V V NRESET FSO V DIGOUT3,4 V INH V ...
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L9952GXP 5 ESD protection Table 6. ESD protection All pins, except LIN All pins (charge device model) Corner pins (charge device model) 1. HBM (human body model, 100pF, 1.5 kΩ ) according to MIL 883C, Method 3015.7 or EIA/JESD22A114-A 2. ...
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Thermal data 6 Thermal data 6.1 Operating junction temperature Table 7. Operating junction temperature Item Symbol 6.1.1 Tj 6.1.2 RthjA 6.2 Temperature warning and thermal shutdown Table 8. Temperature warning and thermal shutdown Item Symbol 6.2.1 T 6.2.2 T SD1 ...
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L9952GXP 6.3 Package and PCB thermal data Figure 9. PowerSSO-36 PC board Note: Layout condition of R board double layer, board dimension 129x60, board Material FR4, Cu thickness 0.070mm (front and back side), thermal vias separation 1.2 mm, thermal via ...
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Thermal data Figure 10. PowerSSO-36 thermal resistance junction ambient Vs. PCB copper area (V1 ON) RTHj_amb( °C/ W) 110 Figure 11. PowerSSO-36 thermal impedance junction ambient single pulse (V1 ON) ZTH ( °C/ W) 1000 ...
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L9952GXP Equation 1: pulse calculation formula ⋅ THδ TH where δ Figure 12. PowerSSO-36 thermal fitting model (V1 ON) Table 9. Thermal parameters Area/island (cm R1 (°C/W) R2 (°C/W) R3 (°C/W) R4 (°C/W) ...
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Electrical characteristics 7 Electrical characteristics 7.1 Supply and supply monitoring The voltages are referred to ground and currents are assumed positive, when the current flows into the pin. 6V < V unless otherwise specified. Table 10. Supply and supply monitoring ...
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L9952GXP 7.2 Oscillator 6V < V < 18V; all outputs open Table 11. Oscillator Item Symbol 7.2.1 F CLK 7.3 Power-on reset (Vs) All outputs open; T Table 12. Power-on Reset (Vs) Item Symbol 7.3.1 V THUP_POR 7.3.2 ...
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Electrical characteristics Table 13. Voltage regulator V1 (continued) Item Symbol 7.4.7 ICCmax1 7.4.8 Cload1 7.4.9 tTSD 7.4.10 I CMP_ris 7.4.11 I CMP_fal 7.4.12 I _hys CMP 7.4.13 V1fail 1. Placement close to the PAD 7.5 Voltage regulator V2 The voltages ...
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L9952GXP 7.6 Reset generator (V1 supervision) The voltages are referred to GND and currents are assumed positive, when the current flows into the pin. 5.25V < V Table 15. Reset generator Item Symbol 7.6.1 V RT1 7.6.2 V RT2 7.6.3 ...
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Electrical characteristics Figure 13. Watchdog timing N orm al startup operation and tim eout failures = correct trigger tim ing = early trigger tim ing = m issing trigger trigger N RES ...
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L9952GXP Figure 14. Watchdog, closed and open window tolerances and save trigger area TCW, max TCW, min watchdog failure 7.8 High side outputs 7.8.1 Output (Out_HS) The voltages are referred to gnd and currents are assumed positive, when the current ...
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Electrical characteristics 7.8.2 Outputs (OUT1...4) The voltages are referred to GND and currents are assumed positive, when the current flows into the pin. 6V < V specified. Table 18. High side outputs (OUT 1..4) Item Symbol 7.8.11 R DSON 7.8.12 ...
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L9952GXP Table 19. Relay drivers (continued) Item Symbol 7.9.6 t SCF 7.9 The output is capable to switch off relay coils with the impedance of RL=160Ω 300mH (RL=220Ω; L= 420mH 7.10 Wake up inputs ...
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Electrical characteristics 7.11 Wake up input (INH) The voltages are referred to GND and currents are assumed positive, when the current flows into the pin. 6V < V Table 21. Wake up input (INH) Item Symbol 7.11.1 I INHth 7.11.2 ...
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L9952GXP Table 22. LIN receiver (continued) Item Symbol LIN 7.12.7 V RXDHIGH 7.12.8 V THdom 7.12.9 V THrec 7.12.10 V THhys 7.12.11 V THcnt 7.12.12 V THwkup 7.12.13 V THwkdwn 7.12.14 Tbus Table 23. LIN DC parameters Item Symbol LIN ...
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Electrical characteristics Table 24. LIN transmitter (continued) Item Symbol LIN 7.12.20 V LINdom 7.12.21 V LINrec 7.12.22 R LINup Table 25. LIN timing Item Symbol 7.12.24 t TXpd_sym 7.12.25 t RXpd 7.12.26 tRXpd_sym 44/68 Parameter Test condition LIN transmitter V ...
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L9952GXP Table 25. LIN timing (continued) Item Symbol 7.12.27 D1 7.12.28 D2 7.12.29 D3 7.12.30 D4 Table 26. LIN DC values Item Symbol LINPU 7.12.31 R DSon 7.12.32 I leak Parameter Test condition LIN timing THRec(max)=0.744*Vs THDom(max)=0.581*Vs Vs= 7...18V, tbit= ...
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Electrical characteristics Figure 15. LIN transmit, receive timing 46/ ...
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L9952GXP 7.13 Operational amplifier The voltages are referred to gnd and currents are assumed positive, when the current flows into the pin. 6V < V Table 27. Operational amplifier Item Symbol 7.13.1 GBW 7.13.2 AVOL DC 7.13.3 PSRR 7.13.4 V ...
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Electrical characteristics 7.14 SPI 7.14.1 Input: CSN The voltages are referred to ground and currents are assumed positive, when the current flows into the pin. 6V < V unless otherwise specified. Table 28. SPI (Input CSN) Item Symbol 7.14.1 V ...
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L9952GXP 7.14.3 Input PWM 2 Vth for flash mode The voltages are referred to ground. 6V < V < 18V; 4.5V < V1 < 5.3V; all outputs open specified. Table 30. Input PWM2 Vth for flash mode Item ...
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Electrical characteristics 7.14.5 DO, FSO, Dig_Out3,4 The voltages are referred to ground and currents are assumed positive, when the current flows into the pin. 6V < V unless otherwise specified. Table 32. DO, FSO, Digout3,4 Item Symbol 7.14.25 V DOL ...
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L9952GXP 7.14.7 CSN timing The voltages are referred to ground and currents are assumed positive, when the current flows into the pin. 6V < V unless otherwise specified. Table 34. CSN timing Item Symbol 7.14.36 t CSN_HI,min Figure 16. SPI ...
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Electrical characteristics Figure 17. SPI - Edges timing CLK DO (low to high DO (high to low CSN 52/68 Tf CLK CSN Ten DO_tri_L Ten DO_tri_H Doc ID 13518 Rev 5 L9952GXP Tr ...
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L9952GXP Figure 18. SPI - CSN low to high transition C SN output current of a driver output current of a driver Figure 19. SPI - High to low transition CSN CLK low to high: data ...
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SPI control and status registers 8 SPI control and status registers 8.1 SPI registers 24bit shift register: first 2 bits are address (A1,A0) and 22 bits are data. During power-on reset, all registers are set to zero. Table 35. SPI ...
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L9952GXP 8.1.1 Control register 0 While writing to the control register 0, the status register 0 can be read at the DO-Output of the SPI. Table 36. Control register 0 5V2 Bit Access w w ...
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SPI control and status registers Table 40. Configuration bit On_V2x (continued) Name / state Table 41. Configuration bit TRIG, GO_VBAT, GO_V1 TRIG GO_VBAT GO_V1 8.1.2 Control register 1 While writing to the control register 1, the status ...
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L9952GXP Table 43. Configuration bit Wx (continued) Name/state Table 44. Configuration bit Ux Name/state ...
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SPI control and status registers Table 46. Configuration bit Txx Name/state T12 T11 T10 T13 0 1 T20 0 1 Table 47. Configuration bit ...
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L9952GXP 8.1.3 Control register 2 While writing to the control register 2, the status register 0 can be read at the DO-Output of the SPI. Table 48. Control register 2 Input filter configuration Bit Access ...
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SPI control and status registers Table 51. Configuration bit ICxx Name/state IC(1..4)1 IC11 0 IC21 0 IC31 1 IC41 1 Table 52. Configuration bit LIN slope, LS_ovuv and ICMP Name/state LIN slope Change LIN slope 0 High slew rate (default) ...
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L9952GXP 8.1.4 Status register 0 The contents of the status register 0 can be read implicitly, while accessing the control register 0 or control register 2. Table 53. Status register 0 Bit Access ...
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SPI control and status registers Table 55. Configuration bit SHT5V2, WUx, INH, LIN and Cold Start (continued) Name/state INH LIN Cold Start Note: RES = reserved bits. 8.1.5 Status register 1 The contents of the status register 1 can be ...
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L9952GXP Table 58. Configuration bit STx (continued) Name 1 0 VBat-standby, a readout is not possible off 1 1 Flash Mode Table 59. Configuration bit Rx, WDx, TRIG, SHT_GND, SHT_BAT and DOM_TXD Name WD3 ...
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Package and packing information 9 Package and packing information ® 9.1 ECOPACK In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions ...
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L9952GXP Table 60. PowerSSO-36 mechanical data (continued) Symbol Package and packing information Millimeters Min. Typ. 10. ...
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Package and packing information 9.3 PowerSSO-36 packing information Figure 21. PowerSSO-36 tube shipment (no suffix Figure 22. PowerSSO-36 tape and reel shipment (suffix “TR”) TAPE DIMENSIONS According to Electronic Industries Association (EIA) Standard 481 rev. A, Feb. 1986 ...
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L9952GXP 10 Revision history Table 61. Document revision history Date Revision 24-Aug-2007 07-Sep-2007 21-Sep-2007 11-Apr-2008 08-Jul-2009 1 Initial release. Table 18: High side outputs (OUT current 1 parameter value (item 7.8.13). Table 20: Wake up inputs(WU1...WU4): modified Input current in ...
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