tle4678 Infineon Technologies Corporation, tle4678 Datasheet
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tle4678 Summary of contents
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... Typical Performance Characteristics Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7 Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.1 Description Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.2 Electrical Characteristics Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.3 Typical Performance Characteristics Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Watchdog Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.2 Electrical Characteristics Watchdog Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.3 Typical Performance Characteristics Standard Watchdog Function . . . . . . . . . . . . . . . . . . . . . . . . . 25 9 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 10 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Datasheet 2 TLE4678 Table of Contents Rev. 1.0, 2008-07-31 ...
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... AEC Qualified Description The TLE4678 is a monolithic integrated low drop out fixed output voltage regulator for loads up to 200 mA. An input voltage regulated to an output voltage The integrated reset and watchdog function, as well as several protection circuits, combined with a wide operating temperature range offered by the TLE4678 make it suitable for supplying microprocessor systems in automotive environments ...
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... For details on the circuit blocks see the respective section in this datasheet. Supply I Protection Bandgap Circuits Reference GND Figure 1 Block Diagram and Simplified Application Circuit Datasheet TLE 4678 Reset and WI Watchdog Generator RADJ WADJ TLE4678 Block Diagram Regulated Output Voltage Load Micro Q Controller XC22xx GND Rev. 1.0, 2008-07-31 ...
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... For triggering the reset at the internally determined threshold, connect this pin directly to GND. Connect directly to GND if the reset function is not needed. Datasheet WADJ 2 13 GND 3 12 GND 4 11 GND RADJ inout_SO14 .vsd 5 Pin Configuration RO I GND GND GND Q WI Rev. 1.0, 2008-07-31 TLE4678 ...
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... For compensating line influences, a capacitor to GND close to the IC pins is recommended Reset Output Open collector output with an internal pull-up resistor to the output Q. An additional external pull-up resistor to the output Q is optional. Leave open if the reset function is not needed. Datasheet Chapter 4.2 Functional Range. 6 TLE4678 Pin Configuration Rev. 1.0, 2008-07-31 ...
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... -0.3 7 WADJ T -40 150 j T -55 150 stg ESD,HBM - ESD,CDM 7 TLE4678 General Product Characteristics Unit Conditions V – V – V – V – V – V – V – V – C – C – Human Body Model Pin 13 (Input) only Human Body Model ...
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... R – 104 – thJA – 73 – – 65 – – 63 – 80 1 Sn; horizontal position; zero airflow. 8 TLE4678 General Product Characteristics Unit Conditions V/µ > trigger of WO, RO. C – 4) µF – ...
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... C is outside the maximum rating and therefore reduces the IC lifetime. The TLE4678 allows a negative supply voltage. However, several small currents are flowing into the IC increasing its junction temperature. This has to be considered for the thermal design, respecting that the thermal protection circuit is not operating during reverse polarity condition ...
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... I 200 350 mV = 150 500 4 – – - – - 200 °C increasing j T – K decreasing j Rev. 1.0, 2008-07-31 TLE4678 100 mA mA ...
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... VQ - 100 ESR 0.01 80 100 120 140 T [° Voltage Regulator ESR µ -40 °C j Stable Region 120 Rev. 1.0, 2008-07-31 TLE4678 CQ ESR - 150 °C 160 I [mA] Q ...
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... 200 µA Q -40 - 100 I vs [mA -1 -40 ° ° 150 ° -16 Rev. 1.0, 2008-07-31 TLE4678 120 140 T [°C] j II-VI@ [V] I ...
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... Unit Conditions 200 Watchdog deactivated 200 Watchdog deactivated mA Watchdog activated mA Watchdog activated 150 mA Q Regulated I Output Voltage Rev. 1.0, 2008-07-31 TLE4678 LOAD ...
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... Current Consumption I vs 100 µ Watchdog deactivated - vs °C j [mA Rev. 1.0, 2008-07-31 TLE4678 Tj 120 150 T [° -VI 500 [V] I ...
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... RT, defined by an external delay d,PWR- 100nF is required, the delay D Item 7.2.15: t considers a short output undervoltage only before the charging sequence D DST,lo Item 7.2.14 can be calculated Rev. 1.0, 2008-07-31 TLE4678 Reset Function starting from (1) I starting D,ch (2) ...
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... RO,ext pin “RADJ”. For selecting the default threshold connect pin “RADJ” to ADJ2 Item 7.2.6. R ADJ,2 Figure Item 7.2.5. 16 TLE4678 Reset Function t applies. Hence, the total reset rr,int Item 7.2.17, see Item 7.2. even if the input voltage calculated as follows RT,new 6 ...
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... Reset Function ADJ ,1 RADJ I RADJ D R ADJ , < rr,blank rr,total d Spike at Over- output load Rev. 1.0, 2008-07-31 TLE4678 VDD Reset Micro- Controller GND rr,total ...
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... V 0 RT,low R = 3.3 k RO,ext V – RT,low internally connected to Q – V – – V – V – – Calculated value 100 discharged to D Rev. 1.0, 2008-07-31 TLE4678 ; V DST,lo ...
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... Max Calculated value 100 discharged 100 Calculated Value rr,d,100nF C = 100 versus d d,PWR- (typ.) d,PWR-ON t (typ 100 Rev. 1.0, 2008-07-31 TLE4678 rr,int 1000 C [nF] D ...
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... In order to avoid unwanted wake-up signals due to missing edges at pin “WI”, the TLE4678 watchdog function can be activated dependent on the regulator’s output current. The TLE4678 comprises a default watchdog activating threshold ...
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... WO,ext Item 8.2.16). Figure 10 Watchdog Function & BlockDiagram _WatchdogAdjust .vsd C D Item 8.2.10 to Item WI,hi V WI,lo t Rev. 1.0, 2008-07-31 TLE4678 I Q VDD Micro- Controller Reset I/O GND 8.2.14. For ...
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... Watchdog Function pin “D”. Thus, the watchdog D Figure 11 100nF is required, the delay D Item 8.2.22: then becomes outside spec WI WI,tr WI,p t WD, .vsd Rev. 1.0, 2008-07-31 TLE4678 , otherwise WI, WD,lo (8) (9) (10 ...
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... WDact,hy V – – 0.8 WI,lo V 2.6 – – WI,hi t 0.5 – – WI – – – – TLE4678 Watchdog Function (unless otherwise specified). Unit Conditions I mA increasing decreasing Q A – mV – V – WADJ k – Calculated value Calculated value k 1) ...
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... DW,disch V – 1.2 – DW,hi V – 0.7 – DW, WI,tr,100nF WD,lo,100nF WD,p,100nF Figure 10. Chapter 8.1.. 24 TLE4678 Watchdog Function (unless otherwise specified). Unit Conditions mA; WO Watchdog active 0 Watchdog active – – ...
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... VWADJ a c t-RWADJ Q,WDact,th [mA] 1000 4000 WAD tWItr- max. typ. 1000 C [nF Watchdog Function V WADJdeact,th R WADJ,ext 24 VWADJ t-RWADJ min typ 100 1000 R WAD Rev. 1.0, 2008-07-31 TLE4678 4000 [k ] ...
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... Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). For further information on packages, please visit our website: http://www.infineon.com/packages. Datasheet -0.2 B 0.1 0 14x -0 Package Outlines 0.35 x 45˚ 0.64 ±0.25 6 ±0.2 0 GPS01230 Dimensions in mm Rev. 1.0, 2008-07-31 TLE4678 ...
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... Revision History Revision Date Changes 1.0 2008-07-31 Final datasheet initial version. Datasheet 27 TLE4678 Revision History Rev. 1.0, 2008-07-31 ...
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Edition 2008-07-31 Published by Infineon Technologies AG 81726 Munich, Germany 2008 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 ...