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| 5-V Low Drop Fixed Voltage Regulator TLE 4270-2 Features * * * * * * * * * * * * * * * Output voltage tolerance 2% 650 mA output current capability Low-drop voltage Reset functionality Adjustable reset time Suitable for use in automotive electronics Integrated overtemperature protection Reverse polarity protection Input voltage up to 42 V Overvoltage protection up to 65 V ( 400 ms) Short-circuit proof Wide temperature range ESD protection: 2kV HBM1) Green Product (RoHS compliant) AEC Qualified P-TO252-5-1 Functional Description This device is a 5-V low drop fixed-voltage regulator. The maximum input voltage is 42 V (65 V, 400 ms). Up to an input voltage of 26 V and for an output current up to 650 mA it regulates the output voltage within a 2% accuracy. The short circuit protection limits the output current of more than 650 mA. The device incorporates overvoltage protection and a temperature protection which turns off the device at high temperatures. 1) ESD susceptibility, Human Body Model (HBM) according to EIA/JESD 22-A114B Type TLE 4270-2 G TLE 4270-2 D Data Sheet 1 Package PG-TO263-5-1 PG-TO252-5-11 Rev. 1.8, 2007-11-09 TLE 4270-2 PG-TO263-5-1 PG-TO252-5 GND 1 RO D GND Q 5 1 RO DQ 5 AEP01922 AEP02580 Figure 1 Table 1 Pin 1 2 3 4 5 I RO GND D Q Pin Configuration (top view) Pin Definitions and Functions Function Input; block to ground directly at the IC with a ceramic capacitor. Reset Output; the open collector output is connected to the 5-V output via an integrated resistor of 30 k. Ground; internally connected to heatsink. Reset Delay; connect a capacitor to ground for delay time adjustment. 5-V Output; block to ground with 22 F capacitor, ESR < 3 . Symbol Data Sheet 2 Rev. 1.8, 2007-11-09 TLE 4270-2 Circuit Description The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of a series transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. The IC also incorporates a number of internal circuits for protection against: * * * * Overload Overvoltage Overtemperature Reverse polarity Application Description The IC regulates an input voltage in the range of 5.5 V < VI < 36 V to VQ,nom = 5.0 V. Up to 26 V it produces a regulated output current of more than 650 mA. Above 26 V the save-operating-area protection allows operation up to 36 V with a regulated output current of more than 300 mA. Overvoltage protection limits operation at 42 V. The overvoltage protection hysteresis restores operation if the input voltage has dropped below 36 V. A reset signal is generated for an output voltage of VQ < 4.5 V. The delay for power-on reset can be set externally with a capacitor. Data Sheet 3 Rev. 1.8, 2007-11-09 TLE 4270-2 Temperature Sensor Saturation Control and Protection Circuit 5 Control Amplifier I 1 Q Bandgap Reference Buffer Reset Generator 2 4 RO D Adjustment 3 GND AEB01924 Figure 2 Block Diagram Data Sheet 4 Rev. 1.8, 2007-11-09 TLE 4270-2 Table 2 Absolute Maximum Ratings Tj = -40 to 150 C Parameter Input I Voltage Voltage Current Reset Output RO Voltage Current Reset Delay D Voltage Current Output Q Voltage Current Ground GND Current Temperatures Junction temperature Storage temperature Table 3 Parameter Input voltage Junction temperature Thermal Resistance Junction ambient Junction case Symbol Limit Values Min. Max. 42 65 - 7 - 7 - 16 - - 150 150 V V - V - V - V - A C C - Unit Notes VI VI II VRO IRO VD ID VQ IQ IGND Tj Tstg -42 - - -0.3 - -0.3 - -1.0 - -0.5 - -50 t 400 ms internally limited - Internally limited - Internally limited - Internally limited - - - Operating Range Symbol Limit Values Min. Max. 42 150 65 79 3 V C K/W K/W K/W - - - TO263, TO2521) TO-263 Packages 6 -40 - - 3 Unit Notes VI Tj Rthj-a Rthj-c 1) Mounted on PCB, 80 x 80 x 1.5 mm ; 35 Cu; 5 Sn; Footprint only; zero airflow. Data Sheet 5 Rev. 1.8, 2007-11-09 TLE 4270-2 Table 4 Characteristics VI = 13.5 V; -40 C Tj 125 C (unless otherwise specified) Parameter Output voltage Output voltage Output current limiting Current consumption Iq = II - IQ Current consumption Iq = II - IQ Current consumption Iq = II - IQ Drop voltage Load regulation Line regulation Symbol Min. Limit Values Typ. 5.00 5.00 850 1 Max. 5.10 5.10 - 1.5 V V mA mA 5 mA IQ 550 mA; 6 V VI 26 V 26 V VI 36 V; IQ 300 mA VQ = 0 V 4.90 4.90 650 - Unit Test Condition VQ VQ IQmax Iq IQ = 5 mA Iq - 55 75 mA IQ = 550 mA Iq - 70 90 mA IQ = 550 mA; VI = 5 V VDR VQ,Lo VQ,Li - - - - 350 25 12 54 700 50 25 - mV mV mV dB Power supply Ripple PSRR rejection Reset Generator Switching threshold Reset High voltage Reset low voltage Reset low voltage Reset pull-up Charge current IQ = 550 mA1) IQ = 5 to 550 mA; VI = 6 V VI = 6 to 26 V IQ = 5 mA fr = 100 Hz; Vr = 0.5 Vpp - - VRT VROH VROL VROL Rint ID,c 4.5 4.5 - - 18 8 4.65 - 60 200 30 14 4.8 - - 400 46 25 V V mV mV k A Rint = 30 k2); 1.0 V VQ 4.5 V IR = 3 mA, VQ = 4.4 V internally connected to Q VD = 1.0 V Rev. 1.8, 2007-11-09 Data Sheet 6 TLE 4270-2 Table 4 Characteristics (cont'd) VI = 13.5 V; -40 C Tj 125 C (unless otherwise specified) Parameter Upper reset timing threshold Lower reset timing threshold Delay time Reset reaction time Turn-Off voltage Symbol Min. Limit Values Typ. 1.8 0.45 13 - 44 Max. 2.3 0.8 - 3 46 V V ms s V - 1.4 0.2 - - 42 Unit Test Condition VDU VDL trd trr VI, ov VQ < VRT CD = 100 nF CD = 100 nF - Overvoltage Protection 1) Drop voltage = VI - VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.5 V input) 2) Reset peak is always lower than 1.0 V. Data Sheet 7 Rev. 1.8, 2007-11-09 TLE 4270-2 II 1000 F I1 470 nF TLE4270-2 TLE 4270G 5 Q IQ 22 F VI 4 D 2 3 GND RO IR VQ VR ID VD IGND CD AES01925 Figure 3 Test Circuit Input 470 nF Reset to C I1 5Q 5 V - Output TLE 4270 TLE4270-2 RO 2 3 GND 100 nF AES01926 4 D 22 F Figure 4 Application Circuit Data Sheet 8 Rev. 1.8, 2007-11-09 TLE 4270-2 Design Notes for External Components An input capacitor CI is necessary for compensation of line influences. The resonant circuit consisting of lead inductance and input capacitance can be damped by a resistor of approx. 1 in series with CI. An output capacitor CQ is necessary for the stability of the regulating circuit. Stability is guaranteed at values of CQ 22 F and an ESR of < 3 . Reset Circuitry If the output voltage decreases below 4.5 V, an external capacitor CD on pin 4 (D) will be discharged by the reset generator. If the voltage on this capacitor drops below VDL, a reset signal is generated on pin 2 (RO), i.e. reset output is set low. If the output voltage rises above the reset threshold, CD will be charged with constant current. After the power-on-reset time the voltage on the capacitor reaches VDU and the reset output will be set high again. The value of the power-on-reset time can be set within a wide range depending of the capacitance of CD. Reset Timing The power-on reset delay time is defined by the charging time of an external capacitor CD which can be calculated as follows: CD = (t x ID,c)/V Definitions: * * * * (1) CD = delay capacitors t = reset delay time trd ID,c = charge current, typical 14 A V = VDU, typical 1.8 V VDU = upper reset timing threshold at CD for reset delay time trd = V x CD/ID,c (2) The reset reaction time trr is the time it takes the voltage regulator to set the reset out LOW after the output voltage has dropped below the reset threshold. It is typically 1 s for delay capacitor of 47 nF. For other values for CD the reaction time can be estimated using the following equation: trr 20 s/F x CD (3) Data Sheet 9 Rev. 1.8, 2007-11-09 TLE 4270-2 VI < trr VQ VRT dV ID, c = dt CD VDU VD VDL trd VRO trr Power-ON Reset Thermal Shutdown Voltage Drop at Input Undervoltage Secondary Load Spike Bounce AES01927 Figure 5 Reset Time Response Data Sheet 10 Rev. 1.8, 2007-11-09 TLE 4270-2 Output Voltage VQ versus Temperature Tj 5.2 V 5.1 AED01928 Output Voltage VQ versus Input Voltage VI 12 VQ V 10 AED01929 VQ VI = 13.5 V 5.0 8 4.9 6 R L = 25 4.8 4 4.7 2 4.6 -40 0 40 80 120 C 160 0 0 2 4 6 Tj 8 V 10 V Output Current IQ versus Temperature Tj 1200 mA AED01930 Output Current IQ versus Input Voltage VI 1.2 AED03038 I Q max IQ A 1.0 1000 800 0.8 600 0.6 T j = 125 C 25 C 400 0.4 200 0.2 0 -40 0 40 80 120 C 160 0 0 10 20 30 40 V 50 Tj VI Data Sheet 11 Rev. 1.8, 2007-11-09 TLE 4270-2 Current Consumption Iq versus Output Current IQ 3 AED03092 Current Consumption Iq versus Output Current IQ q 80 mA 70 60 AED03093 q mA 2 50 40 V = 13.5 V 1 30 V = 13.5 V 20 10 0 0 20 40 60 80 mA 120 0 0 100 200 300 400 mA 600 Q Q Current Consumption Iq versus Input Voltage VI 120 AED01934 Drop Voltage VDR versus Output Current IQ 800 VDR mV 700 600 AED01935 Iq mA 100 80 500 60 R L = 10 T j = 125 C 25 C 400 300 40 20 R L = 20 50 200 100 0 mA 0 0 10 20 30 40 V 50 0 200 400 600 1000 VI IQ Data Sheet 12 Rev. 1.8, 2007-11-09 TLE 4270-2 Charge Current ID,c versus Temperature Tj 20 A I 18 16 AED03047 Upper Reset Timing Threshold VDU versus Temperature Tj V DU 4.0 mA 3.5 3.0 AED03094 I D, c 14 12 10 8 6 4 -40 2.5 VI = 13.5 V VD = 1 V V = 13.5 V 2.0 V DU 1.5 1.0 0.5 0 40 80 120 C 160 0 -40 0 40 80 120 C 160 Tj Tj Data Sheet 13 Rev. 1.8, 2007-11-09 TLE 4270-2 Package Outlines 4.4 10 0.2 0...0.3 8.5 1) A 1.27 0.1 B 0.05 10.3 (15) 9.25 0.2 7.55 1) 2.4 0.1 0...0.15 5 x 0.8 0.1 4 x 1.7 0.25 M 4.7 0.5 2.7 0.3 0.5 0.1 AB 8 MAX. 0.1 B 1) Typical Metal surface min. X = 7.25, Y = 6.9 All metal surfaces tin plated, except area of cut. GPT09113 GPT09113 Figure 6 PG-TO263-5-1 (Plastic Transistor Single Outline) Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 14 Dimensions in mm Rev. 1.8, 2007-11-09 TLE 4270-2 6.5 +0.15 -0.05 5.7 MAX. (4.24) 1 0.1 1) A B 0.8 0.15 2.3 +0.05 -0.10 0.5 +0.08 -0.04 (5) 9.98 0.5 6.22 -0.2 0.9 +0.20 -0.01 0...0.15 0.51 MIN. 0.15 MAX. per side 5 x 0.6 0.1 1.14 0.5 +0.08 -0.04 0.1 B 4.56 0.25 M A B 1) Includes mold flashes on each side. All metal surfaces tin plated, except area of cut. GPT09527 Figure 7 PG-TO252-5-11 (Plastic Transistor Single Outline) Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 15 Dimensions in mm Rev. 1.8, 2007-11-09 TLE 4270-2 Revision History Revision History Version Rev. 1.8 Rev. 1.7 Date Changes 2007-11-09 Page 1: Changed ESD specification from ">4000V" to "2kV HBM" according to PCN No. 2007-089 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4270 Change of product name to TLE 4270-2 due to modified chip layout and size. Page 1: AEC certified statement added Page 1 and Page 14: RoHS compliance statement and Green product feature added Page 1 and Page 14: Package changed to RoHS compliant version Legal Disclaimer updated Data Sheet 16 Rev. 1.8, 2007-11-09 Edition 2007-11-09 Published by Infineon Technologies AG 81726 Munich, Germany (c) 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. 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 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. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. |
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