Freescale Semiconductor Errata (or Chip Errata) Document Number: MC24XS4ER Rev. 3.0, 4/2015 Silicon Revision Mask N58A, N13J, N65K, MC24XS4 and MC36XSD Errata Introduction This errata sheet applies to the following products: Automotive MC24XS4 Number of Outputs RDS(on) (mΩ) Package MC06XS4200FK Dual 2 X 6.0 PQFN 23 MC10XS4200BAFK MC10XS4200BFK MC10XS4200FK Dual 2 X 10.0 PQFN 23 MC20XS4200BAFK MC20XS4200BFK MC20XS4200FK Dual 2 X 20.0 PQFN 23 MC22XS4200BEK Dual 2 X 22.0 SOIC 32 MC50XS4200BEK Dual 2 X 50.0 SOIC 32 Number of Outputs RDS(on) (mΩ) Package MC06XSD200FK Dual 2 X 6.0 PQFN MC10XSD200FK Dual 2 X 10.0 PQFN MC16XSD200FK Dual 2 X 16.0 PQFN MC22XSD200BEK Dual 2 X 22.0 SOIC 32 MC50XSD200BEK Dual 2 X 50.0 SOIC 32 Industrial MC36XSD Note: Products may have been shipped with PC prefix or R2 suffix indicating Tape and Reel. © Freescale Semiconductor, Inc., 2012-2015. All rights reserved. 1 Device Part Number Prefixes Some device samples are marked with a PC prefix. A PC prefix indicates a prototype device which has undergone basic testing only. After full characterization and qualification, devices will be marked with the MC prefix. 2 Device Build Information/Date Code Device markings indicate build information containing the week and year of manufacture. The date is coded with the last four characters of the nine character build information code (e.g. “CTZW1025”). The date is coded as four numerical digits, where the first two digits indicate the year and the last two digits indicate the week. For instance, the date code “1025” indicates the 25th week of the year 2010. 3 Description The following table provides the general definitions of the errata severity in this document. Table 1. Definitions of Errata Severity Errata Severity Level Meaning High Failure mode that severely inhibits the use of the device for all or a majority of intended applications Medium Failure mode that might restrict or limit the use of the device for all or a majority of intended applications Low Unexpected behavior that does not cause significant problems for the intended applications of the device Enhancement Improvement made to the device due to previously found issues on the design General Description This errata document applies to the dual 24 V - 36 V high-side switches family. ER01 - ECU Ground Disconnection Severity Level – High Description of Problem If ECU ground is disconnected when V PWR ≥ V CL power MOSFETs can conduct due to negative output clamp activation. Customer Impact or Symptoms The device can suffer from extreme power dissipation when ECU ground is disconnected with the limitation that the battery (i.e. VPWR) has to be higher than the absolute value of negative clamp voltage. Workaround The recommendation is to connect a freewheeling diode on the output to avoid lift-up of ECU’s ground and clamp activation. Fix Plan All references have been improved with a negative clamp voltage increased from -28 V to -32 V except for the following references: MC06XS4200FK, MC10XS4200FK, MC20XS4200FK. ER02 - OLOFF Disable Pull-up Current Severity Level – Low Description of Problem When OLOFF detection is disabled through the SPI, pull-up current source is fully deactivated when VHSX > 2.5 V (typ.) Customer Impact or Symptoms Additional consumption observed, the current IOLD (OFF) remains injected on the load (30 uA to 100 uA). MC24XS4ER Workaround No workaround identified. Fix Plan All references have been fixed except the following references: MC06XS4200FK, MC10XS4200FK, MC20XS4200FK ER03 - Track & Hold Mode Severity Level – Low Description of Problem When Track & Hold is used to sense the temperature and then to sense a current, the value of the current on the output pin CSNS is refreshed incorrectly. Customer Impact or Symptoms The value of the current on the high-side switch is incorrect when the previous measurement on CSNS is a temperature measurement and the aforementioned high-side switch is OFF. Workaround The recommendation is to switch ON & OFF the Track & Hold function after the temperature measurement. The following is a workaround sequence: • • • • • • • • • HS0 selection HS1 selection Temperature selection Track & Hold OFF then ON HS0 selection HS1 selection Temperature selection Track & Hold OFF then ON Etc. Fix Plan No fix scheduled. ER04 - Reverse Voltage Protection on VPWR Severity Level – Low Description of Problem In the chapter "PROTECTION AND DIAGNOSTIC FEATURES", in paragraph "Reverse Voltage Protection on VPWR", the sentence "The device can withstand reverse supply voltages on VPWR down to -28 V" applies only to part numbers MC06XS4200FK, MC10XS4200FK, and MC20XS4200FK.” For all other part numbers, the sentence is as follows: "The device can withstand reverse supply voltages on VPWR down to -32 V for B and BA versions". Customer Impact or Symptoms None, all tables have correct data. Workaround N/A. Fix Plan No fix scheduled. MC24XS4ER ER05 – Diagnostics Severity Level – Medium Devices: MC06XS4200, MC10XS4200, MC20XS4200, MC22XS4200, MC50XS4200 Description of Problem In the respective product data sheets, Table 5. “Available diagnostics functions over duty cycle and switching frequency” refers to highcurrent mode (CSNS_ratio_s=0) only. Contact local support for details on low current mode (CSNS_ratio_s=1). The device can operate over the full duty cycle range (0% to 100%) in Low-current mode (CSNS_ratio_s=1). Nonetheless, the open load detection may be corrupted for high duty cycles (close to 100%.) Customer Impact or Symptoms The device returns a short to battery instead of open load. Workaround A 171 μs minimum OFF time is recommended for open load detection in CSNS=1 mode. Example: for 200 Hz, max. duty cycle is (1-171 μs*200) = 96.6% (for VPWR = 14 V, 10 nF output capacitor) Contact local support for details and recommended off time versus voltage and frequency. Fix Plan The device datasheet will be updated. ER06 – Open load detection in Low current Mode 100% duty cycle Severity Level – Medium Devices: MC06XS4200, MC10XS4200, MC20XS4200 Description of Problem When running the device in 100% PWM mode, the open load detection can be corrupted in Low-current mode (CSNS_ratio_s=1). Customer Impact or Symptoms The device returns a short to battery instead of open load. Workaround A 171 μs minimum OFF time is recommended to be sent by the ECU for robust open load detection. A proposed sequence is shown in Figure 1. MC24XS4ER Figure 1. Proposed OFF Time Sequence Fix Plan Under evaluation. MC24XS4ER 4 Revision History Revision Date 1.0 9/2012 Initial Release 11/2014 Made major updates 3/2015 Updated format 4/2015 Added Section , ER05 – Diagnostics and Section , ER06 – Open load detection in Low current Mode 100% duty cycle 2.0 3.0 Description of Changes MC24XS4ER How to Reach Us: Information in this document is provided solely to enable system and software implementers to use Freescale products. Home Page: freescale.com There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits based Web Support: freescale.com/support Freescale reserves the right to make changes without further notice to any products herein. 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Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. All other product or service names are the property of their respective owners. © 2015 Freescale Semiconductor, Inc. Document Number: MC24XS4ER Rev. 3.0 4/2015