TLE4291E Infineon Technologies, TLE4291E Datasheet
TLE4291E
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TLE4291E Summary of contents
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Low Drop Out Linear Voltage Regulator Rev. 1.0, 2011-06- ...
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Table of Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... The integrated reset and watchdog function makes it suitable for supplying microprocessor systems in automotive environments. The watchdog and the power-on reset delay timing can be programmed by the external delay capacitor. Type TLE4291E Data Sheet Package PG-SSOP- TLE4291E PG-SSOP-14 EP Marking TLE4291 Rev. 1.0, 2011-06-07 ...
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Block Diagram Supply I EN Internal Supply Figure 1 Block Diagram and Simplified Application Circuit Data Sheet TLE 4291 Reset and Protection Bandgap Watchdog Circuits Reference Generator GND TLE4291 Block Diagram Regulated Output Voltage Q ...
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Pin Configuration 3.1 Pin Assignment Figure 2 Pin Configuration PG-SSOP-14 EP 3.2 Pin Definitions and Functions 11 Pin Symbol Function 1 I Regulator Input and IC Supply For compensating line influences, a capacitor to GND close to the IC ...
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Pin Symbol Function 8 D Reset Delay and Watchdog Timing Connect a ceramic capacitor D (pin 6) to GND for reset delay and watchdog timing adjustment. Leave only open if both, the reset and the watchdog function are not needed. ...
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General Product Characteristics 4.1 Absolute Maximum Ratings 1) Absolute Maximum Ratings T = -40 °C to +150 °C; all voltages with respect to ground, positive current flowing into pin j (unless otherwise specified) Pos. Parameter Voltages 4.1.1 Supply Voltage ...
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Functional Range Pos. Parameter 4.2.1 Input Voltage Range for Normal Operation 4.2.2 Extended Input Voltage Range 4.2.3 Junction Temperature 4.2.4 Output Capacitor Requirements 4.2.5 1) For specification of the output voltage 2) The output voltage will follow the input ...
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Voltage Regulator 5.1 Description Voltage Regulator V The output voltage is controlled by comparing a portion internal reference and driving a PNP pass Q transistor accordingly. Saturation control as a function of the load current ...
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Electrical Characteristics Voltage Regulator Electrical Characteristics: Voltage Regulator 13.5V, = -40 °C to +150 ° all voltages with respect to ground, direction of currents as shown in Pos. Parameter 5.2.1 Output Voltage 5.2.2 Output ...
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Typical Performance Characteristics Voltage Regulator V Output Voltage versus Q T Junction Temperature j 5.20 5.10 5. 4.90 4.80 - [° Output Current versus ...
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V Line Regulation d versus Q,line V Input Voltage Change -40° 25° 150° [ ...
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Current Consumption 6.1 Electrical Characteristics Current Consumption Electrical Characteristics: Current Consumption 13.5V, = -40 °C to +150 ° all voltages with respect to ground, directions of currents as shown in Pos. Parameter 6.1.1 Current ...
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Typical Performance Characteristics Current Consumption I Current Consumption versus q I Output Current Q 25 -40° 25° 150°C j 15.0 10.0 5.0 0 100 150 200 250 300 ...
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I Current Consumption versus q T Junction Temperature Regulator disabled j 05_Iq_TJ_EN=0.vsd 5.0 4.0 3.0 2.0 1.0 0.0 - [C] j Data Sheet 80 120 15 TLE4291 Current Consumption Rev. 1.0, 2011-06-07 ...
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Enable Function 7.1 Description Enable Function The TLE4291 can be turned on or turned off via the EN Input. With voltage levels higher than the EN Input the device will be completely turned on. A voltage level lower than ...
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Reset Function 8.1 Description Reset Function The reset function provides several features: Output Undervoltage Reset: An output undervoltage condition is indicated by setting the Reset Output “RO” to “low”. This signal might be used to reset a microcontroller during ...
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Reset Adjust Function The undervoltage reset switching threshold can be adjusted according to the application’s needs by connecting R an external voltage divider ( ADJ1 GND. The reset adjustment range is given in When dimensioning the voltage divider, take into ...
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RT,hi V RT, DST,hi V DST, RO,low Thermal Shutdown Figure 7 Timing Diagram Reset Data Sheet rr,total d rr,total ...
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Electrical Characteristics Reset Function Electrical Characteristics: Reset Function 13.5V, = -40 °C to +150 ° all voltages with respect to ground, direction of currents as shown in Pos. Parameter Output Undervoltage Reset Comparator Default ...
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Typical Performance Characteristics Reset Function Undervoltage Reset Switching Threshold vs. Junction Temperature RT,hi RT,lo 4.80 4.75 4.70 4.65 4.60 4.55 4. [° Power On Reset Delay Time RD C Delay ...
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Watchdog Function 9.1 Description The TLE4291 features a programmable watchdog timing. The watchdog function monitors a microcontroller, including time base failures. In case of a missing rising edge within a certain pulse repetition time, the watchdog output is set ...
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WI, WI, Figure 9 Test Pulses Watchdog Input WI Watchdog Timing Positive edges at the watchdog input pin “WI” are expected within the watchdog trigger time frame a low signal at ...
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Electrical Characteristics Watchdog Function Electrical Characteristics Watchdog Function 13.5V, = -40 °C to +150 ° all voltages with respect to ground, direction of currents as shown in Pos. Parameter Watchdog Timing 9.2.1 Delay Capacitor ...
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Typical Performance Characteristics Standard Watchdog Function t Watchdog Trigger Time versus WI,tr C Delay Capacitance D 01_twi_tr_delaycap.vsd 250 °C j 200 150 100 100 200 Capacitance [nF] Data Sheet Watchdog Trigger Time Junction ...
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Package Outlines 0.65 2) 0.25 ±0.05 0. 4.9 ±0.1 Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Does not include dambar protrusion Figure 11 PG-SSOP-14 ...
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Revision History Revision Date Changes 1.0 2011-06-07 Data Sheet Data Sheet 27 TLE4291 Revision History Rev. 1.0, 2011-06-07 ...
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... Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies failure 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 ...