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TLE4263-2ES

5-V Low Dropout Voltage Regulator

Data Sheet, Rev. 1.0, April 2008

Automotive Power

Summary of content (22 pages)

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Data Sheet, Rev. 1.
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5-V Low Dropout Voltage Regulator 1 TLE4263-2ES Overview Features • • • • • • • • • • • • • • • • • Exposed Pad Package with Excellent Thermal Behaviour Output Voltage Tolerance ≤ ±2% Output Current up to 180 mA Very Low Standby Current Consumption Watchdog for Monitoring a Microprocessor Power-on and Undervoltage Reset with Programmable Delay Time Reset Low down to VQ = 1 V Adjustable Reset Threshold Very Low Dropout Voltage Output Current Limitation Reverse Polarity Protection Overtemperature Protect
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TLE4263-2ES Overview Dimensioning Information on External Components The input capacitor CI is recommended for compensation of line influences. The output capacitor CQ is necessary for the stability of the control loop. Stability is guaranteed at values ≥ 22 µF and an ESR of ≤ 3 Ω within the operating temperature range. For small tolerances of the reset delay the capacitance’s spread of the delay capacitor CD and its temperature coefficient should be taken into consideration.
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TLE4263-2ES Block Diagram 2 Block Diagram W Saturation Control and Protection Circuit Temperature Sensor Input Watchdog Ι Q Control Amplifier Buffer Bandgap Reference Reset Generator INH Inhibit Figure 1 Data Sheet Output D Reset Delay RO Reset Output RADJ Reset Threshold GND GND AEB03068 Block Diagram 4 Rev. 1.
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TLE4263-2ES Pin Configuration 3 Pin Configuration 3.1 Pin Assignment , 4 ,1+ : 52 5$'- *1' ' Figure 2 Pin Configuration 3.
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TLE4263-2ES General Product Characteristics 4 General Product Characteristics 4.1 Absolute Maximum Ratings Absolute Maximum Ratings 1) Tj = -40 °C to +150 °C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Max. VI, VINH -42 45 V – VR, VD -0.3 42 V – Voltage VRADJ -0.3 6 V – Voltage VQ -0.3 7 V – VW -0.
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TLE4263-2ES General Product Characteristics 4.2 Functional Range Pos. Parameter Symbol 4.2.1 Input Voltage 4.2.2 Junction Temperature VI Tj Limit Values Unit Conditions Min. Max. 5.5 45 V – -40 150 °C – Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table. 4.3 Pos. Thermal Resistance Parameter Symbol 1) Limit Values Min.
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TLE4263-2ES Electrical Characteristics 5 Electrical Characteristics 5.1 Voltage Regulator Electrical Characteristics Voltage Regulator VI = 13.5 V, -40 °C ≤ Tj ≤150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.1.1 Output Voltage VQ 4.90 5.00 5.10 V 5 mA ≤ IQ ≤ 150 mA; 6 V ≤ VI ≤ 28 V 5.1.2 Output Voltage VQ 4.90 5.00 5.
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TLE4263-2ES Electrical Characteristics 5.2 Typical Performance Characteristics Voltage Regulator Output Voltage VQ versus Junction Temperature TJ Output Current IQ versus Input Voltage VI AED01090 5.2 V VQ ΙQ 5.1 VI = 13.5 V mA 200 4.9 150 4.8 100 4.7 50 0 40 80 0 120 ˚C 160 T j = 25 C 250 5.0 4.
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TLE4263-2ES Electrical Characteristics Dropout Voltage Vdr versus Output Current IQ Vdr Output Voltage VQ versus Input Voltage VI AED03060_4263 800 mV 700 AED01097 12 VQ V 10 600 T j = 125 ˚C 25 ˚C 500 8 400 6 R L = 25 Ω 300 4 200 2 100 0 0 50 100 150 200 mA 0 300 IQ Data Sheet 10 0 2 4 6 8 V 10 VΙ Rev. 1.
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TLE4263-2ES Electrical Characteristics 5.3 Current Consumption Electrical Characteristics Voltage Regulator VI = 13.5 V, -40 °C ≤ Tj ≤150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol 5.3.1 Current Consumption; 5.3.2 Iq = II - IQ Iq Limit Values Unit Conditions VINH = 0 V; Tj ≤ 115 °C IQ = 0 mA IQ = 150 mA IQ = 150 mA; VI = 4.5 V Min. Typ. Max. – 0 10 µA – 900 1300 µA 5.3.
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TLE4263-2ES Electrical Characteristics 5.5 Inhibit Function Electrical Characteristics Voltage Regulator VI = 13.5 V, -40 °C ≤ Tj ≤150 °C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. 5.5.1 Parameter Symbol VINH,ON VINH,OFF IINH Switching Voltage 5.5.2 Turn-OFF Voltage 5.5.3 Inhibit Input Current 5.6 Limit Values Unit Conditions Min. Typ. Max. 3.6 – – V IC turned on – – 0.
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TLE4263-2ES Electrical Characteristics 5.7 Reset Function Electrical Characteristics Reset Function VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 4.5 4.65 4.8 V VQ decreasing Output Undervoltage Reset 5.7.1 Default Output Undervoltage Reset VQ,rt Switching Thresholds Output Undervoltage Reset Threshold Adjustment 5.7.
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TLE4263-2ES Electrical Characteristics 5.8 Typical Performance Characteristics Reset Undervoltage Reset Adjust Threshold VRT versus Junction Temperature Tj Undervoltage Reset Adjust Threshold VRADJ,th versus Output Voltage VQ AED01088 1.6 VRADJ V 1.4 AED01098_4263 1.6 V RADJ V 1.4 1.2 1.2 1.0 1.0 V Ι = 13.5 V 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0 -40 0 40 80 0 120 ˚C 160 Tj 0 1 2 3 4 V 5 VQ Timing Threshold Voltage VDU and VDRL versus Temperature AED03062 3.2 V V 2.8 VI = 13.
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TLE4263-2ES Electrical Characteristics 5.9 Watchdog Function Electrical Characteristics Watchdog Function VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Unit Conditions Min. Typ. Max. 5.9.1 Discharge Current 4.40 6.25 5.9.2 Upper Timing Threshold 1.40 5.9.3 Lower Timing Threshold ID,wd VDU VDWL 9.40 µA VD = 1.0 V 1.70 2.20 V – 0.20 0.35 0.55 V – 5.9.
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TLE4263-2ES Application Information 6 Application Information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. ΙΙ Ι 1000 µF 470 nF ΙE VΙ + Vr VE PSRR = 20 log Q 22 µF TLE4263-2 ES INH VC ΙQ RO D Ι D, ch CD GND Ι GND W RADJ VW VRADJ 5.
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TLE4263-2ES Application Information 6.1 Reset VI t t < t rr VQ VQ,rt 1V t trd VD VDU VDRL t VRO VRO,l trd trd trr trd 1V t Thermal Shutdown Figure 4 Input Voltage Dip Undervoltage Spike at output Overload TimingDiagram_Reset.vsd Reset Timing Diagram Power-On Reset Delay Time If the application needs a power-on reset delay time trd different from the value given in Item 5.7.
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TLE4263-2ES Application Information with • • • CD: capacitance of the delay capacitor to be chosen trd,new: desired power-on reset delay time trd: power-on reset delay time specified in this datasheet For a precise calculation also take the delay capacitor’s tolerance into consideration. Reset Adjust Function The undervoltage reset switching threshold can be adjusted according to the application’s needs by connecting an external voltage divider (RADJ1, RADJ2) at pin RADJ.
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TLE4263-2ES Application Information 6.2 Watchdog VW VD No positive VW edge t t WI,tr TWI,p VDU VDWL t tWD,L tWD,L VRO VRO,l Figure 5 TimingDiagram_Watchdog.vsd t Timing of the Watchdog Function Reset Watchdog Timing The period of the watchdog pulses has to be smaller than the minimum watchdog trigger time which is set by the external reset delay capacitor CD.
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TLE4263-2ES Package Outlines 7 Package Outlines 0.35 x 45˚ 1.27 0.41±0.09 2) 0.2 M 0.19 +0.06 0.08 C Seating Plane C A-B D 8x 0.64 ±0.25 D 0.2 6 ±0.2 8˚ MAX. C 0.1 C D 2x 1.7 MAX. Stand Off (1.45) 0.1+0 -0.1 3.9 ±0.11) M D 8x Bottom View 8 1 5 1 4 8 4 5 2.65 ±0.2 3 ±0.2 A B 4.9 ±0.11) 0.1 C A-B 2x Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Dambar protrusion shall be maximum 0.
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TLE4263-2ES Revision History 8 Revision History Revision Date Changes 1.0 2008-04-21 final version data sheet Data Sheet 21 Rev. 1.
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Edition 2008-04-21 Published by Infineon Technologies AG 81726 Munich, Germany © 2007 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.