TLE4251_07 INFINEON | Alldatasheet

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Technical content

Features

  • Output tracking tolerance ≤ ±0.2%  400 mA output cu rrent capability  Enable Function  Very low current cons umption in OFF mode  Wide operation range: up to 40 V  Wide temperature range: -40 °C ≤ Tj ≤ 150 °C  Output protected against short circuit  Overtemperature protection  Reverse polarity proof  Green Product (RoHS compliant)  AEC Qualified Functional Description The TLE 4251 is a monolithic integrated low drop voltage tracker in the very small SMD package PG-TO252-5-1. It is designed to supply e.g. sensors under the severe conditions of automotive ap plications. Therefore the device is equipped with additional protection functions against overload, short circuit and reverse polarity. Supply voltages up to 40 V ar e tracked to a reference voltage given to the adjust input via an external resistor. The output is able to drive loads up to 400 mA while it follows e. g. the 5 V output of a main voltage regulator within an accuracy of 0.5%. For loads up to 300 mA the tracking accuracy is 0.2%. The TLE 4251 can be switched in stand-by mode via the enable EN input which causes the current consumption to drop to very low values. This feature makes the IC suitable for low power battery applications.

Data Sheet 2 Rev. 2.9, 2007-03-20 TLE 4251 Figure 1 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin No. Symbol Function 1I Input voltage 2E N Enable; high-active input 3G N D Ground 4A D J Adjust; connect directly to the reference or with a voltage divider to the reference (for reference-proportional output voltages, VQ<Vref)….. 5Q Output voltage; must be blocked by a capacitor CQ ≥ 22 μF, ESR ≤ 3 Ω to GND AEP02810 I EN GND QADJ AEP03119 I GNDEN QADJ PG-TO252-5-11 PG-TO263-5-1

Data Sheet 3 Rev. 2.9, 2007-03-20 Figure 2 Block Diagram AES02807 TLE 4251 ADJ EN I GND Saturation Control and Protection Circuit Temperature Control

Data Sheet 4 Rev. 2.9, 2007-03-20 TLE 4251 Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. Table 2 Absolute Maximum Ratings -40 °C < Tj < 150 °C Parameter Symbol Limit Values Unit Remarks Min. Max. Input Voltage VI -42 45 V – Current II – – mA internally limited Output Voltage VQ -2 45 V – Current IQ – – mA internally limited Adjust Voltage VADJ -42 45 V – Current IADJ –– μA internally limited Enable Voltage VEN -42 45 V – Current IEN –– μA internally limited Temperatures Junction temperature Tj -40 150 °C– Storage temperature Tstg -50 150 °C– Thermal Resistances Junction case Rthjc – 4 K/W TLE 4251 D Junction ambient Rthja – 78 K/W TLE 4251 D 1) Junction case Rthjc – 3 K/W TLE 4251 G Junction ambient Rthja – 52 K/W TLE 4251 G 1) 1) Worst case, regarding peak temperature; zero airflow; mounted an a PCB 80 × 80 × 1.5 mm3, heat sink area 300 mm2.

Data Sheet 5 Rev. 2.9, 2007-03-20 Table 3 Operating Range Parameter Symbol Limit Values Unit Remarks Min. Max. Input voltage VI 41) 40 V – Adjust input voltage VADJ 2.5 40 V – Adjust input voltage VADJ 02 . 5 V VQ ≤ VADJ + ΔVQ Enable input voltage VEN 04 0 V – Junction temperature Tj -40 150 °C– 1) VI > VADJ + VDR

Data Sheet 6 Rev. 2.9, 2007-03-20 TLE 4251 Table 4 Electrical Characteristics VI = 13.5 V; 2.5 V ≤ VADJ ≤ VI - 0.5 V; -40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values Unit Test Condition Min. Typ. Max. Output Output voltage tracking accuracy Δ VQ = VADJ - VQ ΔVQ -10 – 10 mV VI < 13.5 V; 1 mA < IQ < 300 mA Output voltage tracking accuracy ΔVQ -10 – 10 mV 6 V < VI < 40 V; 5 mA < IQ < 200 mA Output voltage tracking accuracy ΔVQ -25 – 25 mV 6 V < VI < 28 V; 1 mA < IQ < 300 mA Drop voltage Vdr – 280 520 mV IQ = 300 mA; VADJ > 4 V; Enable ON1) Output current IQ 400 450 800 mA Tj ≤ 125 °C1) Output capacitor CQ 22 – – μFE S R ≤ 3 Ω at 10 kHz Current consumption Iq = II - IQ Iq –1 0 2 0 m A IQ = 300 mA Current consumption Iq = II - IQ Iq – 230 300 μA IQ < 1 mA; Tj < 85 °C; VEN in ON state Quiescent current (stand-by) Iq = II - IQ Iq –02 μA VEN = 0 V; Tj < 85 °C Regulator Performance Load regulation ΔVQ -35 ±53 5m V 5 m A < IQ < 300 mA; VI = 6 V; VADJ = 5 V Line regulation ΔVQ -25 ±10 25 mV 12 V < VI < 32 V; IQ = 5 mA Power Supply Ripple Rejection PSRR 60 – – dB fr = 100 Hz; Vr = 0.5 Vpp; VADJ = 5 V; CQ = 22 μF Tantalum Adjust Input Input biasing current IADJ –0 . 1 0 . 5 μA VADJ = 5 V

Data Sheet 7 Rev. 2.9, 2007-03-20

Application Information

Figure 3 Application Circuit Enable Enable on voltage range VEN ON 2––V VQ ON Enable off voltage range VEN OFF ––0 . 5 V VQ ≤ 0.1 V Input current IEN 54 0 7 0 μA VEN = 5 V 1) Measured when the output voltage VQ has dropped 100 mV from the nominal value. Table 4 Electrical Characteristics (cont’d) VI = 13.5 V; 2.5 V ≤ VADJ ≤ VI - 0.5 V; -40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values Unit Test Condition Min. Typ. Max. e.g. TLE 4470 TLE 4269 TLE 4278 AES02808 TLE 4251 GND I ADJ Q EN µC LOAD to sensor GND QI VCC I/O 100 nF 6...40 V 22 µF 22 µF 100 nF C 100 nF Saturation Control and Protection Circuit Temperature Control

Data Sheet 8 Rev. 2.9, 2007-03-20 TLE 4251 Quiescent Current Iq versus Output Current IQ Tracking Accuracy ΔVQ versus Temperature Tj, VADJ = 5 V Enable Current IEN versus Enable Voltage VEN Current Consumption Iq versus Input Voltage VI, VADJ = 5 V AED02900 0 0 qI QI 100 200 300 mA 450 mA AED02902 -6-40 QV jT mV 0 40 80 120 160 IV = 40 V IQ = 200 mA V QI = 6 V = 300 mA I AED02901 0 0 ENABLEI ENABLEV 0.5 1 1.5 2 2.5 3 3.5 4V µA AED02904 150 0 qI ΙV 5 10 15 20 25 30 35 V 45 µA 200 250 300 350 400 IQ = 10 mA = 1 mAIQ

Data Sheet 9 Rev. 2.9, 2007-03-20 TLE 4251 Tracking Accuracy ΔVQ versus Output Current IQ AED02903 0 0 QV QI 0.5 1.5 2.5 mV 100 200 300 400 500 ADJV = 5 V mA = 3 VVADJ

Data Sheet 10 Rev. 2.9, 2007-03-20 TLE 4251 Package Outlines Figure 4 PG-TO252-5-11 (Plastic Transistor Single Outline) Green Product (RoHS compliant) To meet the world-wi de customer requirements for envi ronmentally friendly products and to be compliant with government regula tions the device is available as a green product. Green products are Ro HS-Compliant (i.e Pb-free fi nish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). Y ou can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Dimensions in mmSMD = Surface Mounted Device 1) Includes mold flashes on each side. 4.56

0.25 M A

6.5 5.7 MAX. ±0.1 per side 0.15 MAX. -0.26.22 ±0.59.98 (4.24) 1 A 1.14 5 x 0.6 ±0.150.8 ±0.1 +0.15 -0.05 0.1 B -0.04 +0.08 0...0.15 0.51 MIN. 0.5 B 2.3 -0.10 0.5 +0.05 -0.04 +0.08(5) -0.010.9 +0.20 B All metal surfaces tin plated, except area of cut. GPT09527

Data Sheet 11 Rev. 2.9, 2007-03-20 Figure 5 PG-TO263-5-1 (Plastic Transistor Single Outline) Green Product (RoHS compliant) To meet the world-wi de customer requirements for envi ronmentally friendly products and to be compliant with government regula tions the device is available as a green product. Green products are Ro HS-Compliant (i.e Pb-free fi nish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). BA0.25 M ±0.2 GPT09113 8.5 1) (15) ±0.29.25 ±0.31 0...0.15 5 x 0.8 ±0.1 ±0.11.27 4.4 B 0.5 ±0.1 ±0.32.7 4.7 ±0.5 2.4 1.7 0...0.3 A 1)7.55 4 x All metal surfaces tin plated, except area of cut. Metal surface min. X = 7.25, Y = 6.9 Typical1) 0.1 B 0.1 0.05 8˚ MAX. GPT09113 Y ou can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Dimensions in mmSMD = Surface Mounted Device

Revision History

Data Sheet 12 Rev. 2.9, 2007-03-20 Rev. 2.9 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4251 Page 1: AEC certified statement added Page 1 and Page 10: RoHS compliance statement and Green product feature added Page 1 and Page 10: Package changed to RoHS compliant version Legal Disclaimer updated

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© 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.