Automotive Power Errata Sheet TLE983x BC
Contents
1. Please note Register OSC_CON is password protected Before it can be modified it needs to be unlocked Planned fix description will be updated in the User Manual No fix in silicon planned 2 Low Side Switch turn on sequence During the Low Side Switches are disabled the ADC2 channels CH6 and CH7 that are responsible for the current measurement of the Low Side Switches might sample undefined voltages This can lead to the Low Side Switch Over Current flag LSx_OC_STS to be set As defined the Low Side Switch Driver can only be activated with LSx_OC_STS 0 Therefore it should be ensured that the Over Current flag LSx_OC_STS is cleared and the Low Side Switches are enabled LSx_EN 1 before turning on the Low Side Switches LSx_ON 1 Workaround Use this sequence to turn on the Low Side Switches 1 write 0x01 into the Low Side Switch control register LSx_CTRL LSx_EN Bits 6 and 7 LSx_OT_STS and LSx_OC_STS are cleared in this write operation 2 wait for at least 20 us 3 write 0x05 into the Low Side Switch control register LSx_CTRL LSx_EN LSx_ON Planned fix next design step BD 3 Temperature coefficients The temperature coefficients in the corresponding data sheets are not valid The valid coefficients are Output voltage Viem at Tp 273 K 0 C 0 4955 V was 0 5365 V before P_5 8 23 Temperature sensitivity b 1 807 mV K was 1 834 mV K before P_5 8 25 Workaround use the valid coefficients in software to c2. Cfineon Uns ise TLE983x BC Microcontroller with LIN and Power Switches for Automotive Applications TLE983x Errata Sheet Rev 1 4 2013 02 26 Automotive Power Infineon Errata Sheet Rev 1 4 2013 02 26 TLE983x BC Microcontroller with LIN and Power Switches for Automotive Applications Overview This document lists the errata of these variants of the TLE983x BC device TLE9831QV TLE9831QV Data Sheet Rev 1 1 TLE9832QV and TLE9832QX TLE9832 Data Sheet Rev 1 1 TLE9832 2QV TLE9832 2 Data Sheet Rev 1 1 1 Stop Mode Entry and Exit The Stop Mode needs to be entered and exited with a special configuration of the PLL Otherwise the system can exit Stop Mode only with Reset Workaround Before entering Stop Mode the following flag needs to be set just before the execution of the Stop Mode command SFR_PAGE _su6 noSST switch to page OSC_CON 0x02 set intosc force to 1 switch async to internal PLL clock _nop_ needed for wakeup _nop_ _nop_ Directly after exiting Stop Mode the setting has to be cleared by using the following commands Revision History 1 4 2013 02 26 Previous Version 1 3 2012 07 27 Major Changes chapter 4 and 5 4 added Errata Sheet 1 4 Rev 1 4 2013 02 26 TLE983x BC Infineon SFR_PAGE _su6 noSST switch to page OSC_CON amp 0x02 set intosc force to 0 PLL internal oscillator OSC _ PLL is selected synchronously
3. alculate the junction temperature Errata Sheet 2 4 Rev 1 4 2013 02 26 TLE983x BC Infineon 4 Edge Detection on GPIOs requires rise time lt 15ys The edge detection on GPIO P0 x P1 x P2 x input signals requires a rise time of lt 15us 20 80 of 5V Errata description functional limitation for rise times gt 15yus A rising edge is always signalled correctly as rising edge but occasionally signalled as falling edge as well The opposite case works as expected A falling edge is always signalled correctly as falling and never signalled as rising edge The wrongly detected falling edges have influence on following functionality Interrupt generation Edge counter Timer start based on detected edge All functional blocks that evaluate falling edges on GPIO input signals are affected e g CCU6 in capture mode Timer external interrupts EXTINT UART Workaround First recommendation ensure an input signal rise time of lt 15us If this is not possible 3 cases need to be distinguished In case only rising edges are evaluated no workaround is required In case only falling edges are evaluated the errata described above occurs No workaround is available for this case In case both edges are used for interrupt generation but depending on the edge different actions should be taken e g in CCU6 following workaround can be used Table 1 rising edge signalled falling edge signalled acti
4. ch off in case of short circuit In case of short circuit the short circuit condition is signalled in VDDEXT_CTRL VDDEXT_SHORT but the VDDEXT is not switched off automatically Switching off needs to be done explicitly in customer software VDDEXT_CTRL VDDEXT_ ENABLE 0 Errata Sheet 4 4 Rev 1 4 2013 02 26 Edition 2013 02 26 Published by Infineon Technologies AG 81726 Munich Germany 2013 02 26 Infineon Technologies AG All Rights Reserved Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics With respect to any examples or hints given herein any typical values stated herein and or any information regarding the application of the device Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind including without limitation warranties of non infringement of intellectual property rights of any third party Information For further information on technology delivery terms and conditions and prices please contact the nearest Infineon Technologies Office www infineon com Warnings Due to technical requirements components may contain dangerous substances For information on the types in question please contact the nearest Infineon Technologies Office Infineon Technologies components may be used in life support devices or systems only with the express written approval of Infineon Technologies if a failur
5. e of such components can reasonably be expected to cause the failure of that life support device or system or to affect the safety or effectiveness of that device or system Life support devices or systems are intended to be implanted in the human body or to support and or maintain and sustain and or protect human life If they fail it is reasonable to assume that the health of the user or other persons may be endangered
6. on no no no action no yes handle as falling yes no handle as rising yes yes handle as rising 5 Application hints 5 1 LIN overcurrent shutdown In the design step BC both a LIN current limitation and a LIN overcurrent shutdown are implemented Both events are signalled as interrupt LIN OC_STS if enabled in addition an overcurrent shutdown disables the LIN transceiver In that case the LIN transceiver needs to be switched on again by software Errata Sheet 3 4 Rev 1 4 2013 02 26 TLE983x BC Infineon 5 2 LIN Transceiver enabling with slow ramping With the default setting of register PCU_CTRL_STS 2 the LIN Transceiver is disabled whenever VS under voltage condition is met VS lt 5 5V It has to be ensured by software sequence that only after leaving the VS under voltage condition VS gt 5 5V which can be checked by software the LIN module will be properly enabled Implementation proposal 1 check bit SYS_SUPPLY_STS VS_UV_STS to be 0 2 then write 0x00 to register LIN CTRL_STS_1 3 then write 0x06 to register LIN CTRL_STS_1 LIN normal mode 5 3 Temperature calculation The formula to be used to calculate the junction temperature from the ADC output value is Tj C ADC_out 256 1 23 1 24 0 4955 1000 1 807 with 1 23 Ref Voltage ADC2 V 1 24 gain at differential input of ADC 0 4955 and 1 807 Temperature coefficients see chapter Temperature coefficients 5 4 VDDEXT does not automatically swit
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