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TLE42754

Low Dropout Linear Fixed Voltage Regulator

Data Sheet, Rev. 1.1, September 2008

Automotive Power

Summary of content (26 pages)

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Data Sheet, Rev. 1.
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Low Dropout Linear Fixed Voltage Regulator 1 TLE42754 Overview Features • • • • • • • • • • • • • • Output Voltage 5 V ± 2% Ouput Current up to 450 mA Very low Current Consumption Power-on and Undervoltage Reset with Programmable Delay Time Reset Low Down to VQ = 1 V Very Low Dropout Voltage Output Current Limitation Reverse Polarity Protection Overtemperature Protection Suitable for Use in Automotive Electronics Wide Temperature Range from -40 °C up to 150 °C Input Voltage Range from -42 V to 45 V Gre
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TLE42754 Overview Circuit Description The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The component also has a number of internal circuits for protection against: • • • Overload Overtemperature Reverse polarity Data Sheet 3 Rev. 1.
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TLE42754 Block Diagram 2 Block Diagram TLE42754 I Protection Circuits Reset Generator Bandgap Reference GND Figure 1 Data Sheet Q RO D Block Diagram 4 Rev. 1.
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TLE42754 Pin Configuration 3 Pin Configuration 3.1 Pin Assignment TLE42754D (PG-TO252-5) and TLE42754G (PG-TO263-5) P-TO252-5 (D-PAK) P-TO263-5 (D²-PAK) GND 1 5 Ι RO Ι D Q AEP02580 GND Q D RO IEP02528 Figure 2 Pin Configuration (top view) 3.
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TLE42754 Pin Configuration 3.3 Pin Assignment TLE42754E (PG-SSOP-14 exposed pad) Q F 52 Q F , Q F Q F *1' Q F Q F Q F ' 4 Q F Q F 3,1&21),*B6623 69* Figure 3 Pin Configuration (top view) 3.4 Pin Definitions and Functions TLE42754E (PG-SSOP-14 exposed pad) Pin Symbol Function 1,3,5,7 n.c.
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TLE42754 General Product Characteristics 4 General Product Characteristics 4.1 Absolute Maximum Ratings Absolute Maximum Ratings 1) -40 °C ≤ Tj ≤ 150 °C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Max. Unit Conditions Input 4.1.1 Voltage VI -42 45 V – Voltage VQ -0.3 7 V – VRO -0.3 25 V – VD -0.
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TLE42754 General Product Characteristics 4.2 Pos. Functional Range Parameter 4.2.1 Input Voltage 4.2.2 Output Capacitor’s Requirements for Stability 4.2.3 Junction Temperature Symbol VI CQ ESR(CQ) Tj Limit Values Unit Conditions Min. Max. 5.
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TLE42754 General Product Characteristics 4.3 Pos. Thermal Resistance Parameter Symbol Limit Value Min. Typ. Unit Conditions Max. TLE42754D (PG-TO252-5) 4.3.4 Junction to Case1) RthJC RthJA – 3.7 – K/W – – 27 – K/W 2) 4.3.6 – 110 – K/W footprint only3) 4.3.7 – 57 – K/W 300 mm2 heatsink area on PCB3) 4.3.8 – 42 – K/W 600 mm2 heatsink area on PCB3) – 3.7 – K/W – – 22 – K/W 2) 4.3.11 – 70 – K/W footprint only3) 4.3.
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TLE42754 Block Description and Electrical Characteristics 5 Block Description and Electrical Characteristics 5.1 Voltage Regulator The output voltage VQ is controlled by comparing a portion of it to an internal reference and driving a PNP pass transistor accordingly. The control loop stability depends on the output capacitor CQ, the load current, the chip temperature and the poles/zeros introduced by the integrated circuit.
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TLE42754 Block Description and Electrical Characteristics 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. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.1.1 Output Voltage VQ 4.9 5.0 5.1 V 1 mA < IQ < 450 mA 9 V < VI < 28 V 5.1.2 Output Voltage VQ 4.9 5.0 5.1 V 1 mA < IQ < 400 mA 6 V < VI < 28 V 5.1.3 Output Voltage VQ 4.9 5.
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TLE42754 Block Description and Electrical Characteristics Typical Performance Characteristics Voltage Regulator Output Voltage VQ versus Junction Temperature Tj Output Current IQ versus Input Voltage VI 01_VQ_T J.VSD 5,20 02_IQ_VI.VSD 1000 T j = -40 °C 900 5,10 800 T j = 150 °C 700 IQ,max [mA] 5,00 V Q [V] T j = 25 °C 4,90 V I = 13.
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TLE42754 Block Description and Electrical Characteristics Load Regulation ∆VQ,load versus Output Current Change ∆IQ Output Capacitor Series Resistor ESR(CQ) versus Output Current IQ 05_DVQ_DIQ.VSD 0 VI = 8 V -5 C Q = 22 µF T j = -40..150 °C 100 ESR(C Q) [Ω ] T j = -40 °C ∆V Q [mV] 06_ESR_IQ.VSD 1000 T j = 25 °C -10 T j = 150 °C -15 10 0,1 -25 0,01 100 200 300 400 Stable Region 0 500 I Q [mA] V I = 6..
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TLE42754 Block Description and Electrical Characteristics 5.2 Current Consumption Electrical Characteristics Current Consumption VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Typ. Max. – 150 200 Unit Conditions 5.2.1 Current Consumption Iq = II - IQ Iq µA 5.2.2 – 150 220 µA 5.2.3 5.2.4 – – 5 15 10 25 mA mA IQ = 1 mA Tj = 25 °C IQ = 1 mA Tj = 85 °C IQ = 250 mA IQ = 400 mA Data Sheet 14 Rev.
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TLE42754 Block Description and Electrical Characteristics Typical Performance Characteristics Current Copnsumption Current Consumption Iq versus Output Current IQ (IQ low) Current Consumption Iq versus Output Current IQ 08_IQ_IQ_IQLOW.VSD 7 09_IQ_IQ.VSD 30 V I = 13.5 V V I = 13.
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TLE42754 Block Description and Electrical Characteristics 5.3 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 low supply voltage. Power-On Reset Delay Time: The power-on reset delay time trd allows a microcontoller and oscillator to start up.
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TLE42754 Block Description and Electrical Characteristics Supply I Q Int. Supply Control VDD CQ RO ID,ch Reset I RO VDST VRT RRO MicroController IDR,dsch GND D BlockDiagram_Reset.vsd GND CD Figure 5 Data Sheet Block Diagram Reset Function 17 Rev. 1.
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TLE42754 Block Description and Electrical Characteristics VI t t < trr,total VQ VRT 1V t t rd VD V DU V DRL t VRO V RO,low t rd trr,total trd t rr,total t rd t rr,total 1V t Thermal Shutdown Figure 6 Data Sheet Input Voltage Dip Undervoltage Spike at output Overload T i mi n g Di a g ra m_ Re se t. vs Timing Diagram Reset 18 Rev. 1.
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TLE42754 Block Description and Electrical Characteristics Electrical Characteristics Reset Function VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. VRT 4.5 4.65 4.8 V VQ decreasing Output Undervoltage Reset 5.3.1 Output Undervoltage Reset Switching Thresholds Reset Output RO 5.3.2 Reset Output Low Voltage VRO,low – 0.2 0.
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TLE42754 Block Description and Electrical Characteristics Typical Performance Characteristics Power On Reset Delay Time trd versus Junction Temperature Tj Undervoltage Reset Switching Threshold VRT versus Tj 11_VRT_TJ.VSD 5 12_TRD_TJ.VSD 20 C D = 47 nF 18 4,9 16 14 4,8 t rd [ms] V RT [V] 12 4,7 10 8 4,6 6 4 4,5 2 4,4 0 -40 0 40 80 120 160 -40 0 Power On Reset DelayTime trd versus Capacitance CD 160 14_T RRINT_TJ.
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TLE42754 Block Description and Electrical Characteristics Delay Capacitor Discharge Time trr,d versus Junction Temperature Tj 15_TRRD_TJ.VSD 0,6 C D = 47 nF 0,5 t rr,d [µs] 0,4 0,3 0,2 0,1 0 -40 0 40 80 120 160 T j [°C] Data Sheet 21 Rev. 1.
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TLE42754 Package Outlines 6 Package Outlines 6.5 +0.15 -0.05 A 1) 2.3 +0.05 -0.10 0.9 +0.20 -0.01 0...0.15 5 x 0.6 ±0.1 1.14 4.56 0.5 +0.08 -0.04 0.51 MIN. 0.15 MAX. per side B (5) 0.8 ±0.15 (4.24) 1 ±0.1 9.98 ±0.5 6.22 -0.2 5.7 MAX. 0.5 +0.08 -0.04 0.1 B 0.25 M A B 1) Includes mold flashes on each side. All metal surfaces tin plated, except area of cut. Please insert the graphic number! Figure 7 Data Sheet PG-TO252-5 22 Rev. 1.
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TLE42754 Package Outlines 4.4 10 ±0.2 1.27 ±0.1 A 8.5 1) B 0.05 2.4 0.1 2.7 ±0.3 4.7 ±0.5 7.55 1) 9.25 ±0.2 (15) 1±0.3 0...0.3 0...0.15 5 x 0.8 ±0.1 0.5 ±0.1 4 x 1.7 0.25 M A B 8˚ MAX. 1) Typical Metal surface min. X = 7.25, Y = 6.9 All metal surfaces tin plated, except area of cut. Figure 8 Data Sheet 0.1 B GPT09113 PG-TO263-5 23 Rev. 1.
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TLE42754 Package Outlines 0.15 M C A-B D 14x 0.64 ±0.25 1 8 1 7 0.2 M D 8x Bottom View 3 ±0.2 A 14 6 ±0.2 D Exposed Diepad B 0.1 C A-B 2x 14 7 8 2.65 ±0.2 0.25 ±0.05 2) 0.08 C 8˚ MAX. C 0.65 0.1 C D 0.19 +0.06 1.7 MAX. Stand Off (1.45) 0 ... 0.1 0.35 x 45˚ 3.9 ±0.11) 4.9 ±0.11) Index Marking 1) Does not include plastic or metal protrusion of 0.15 max.
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TLE42754 Revision History 7 Revision History Version Date Changes 1.1 2008-09-24 data sheet updated with new package variant in PG-SSOP-14 exposed pad: In “Overview” on Page 2 package graphic and sales name with marking added In Table 4.3 “Thermal Resistance” on Page 9 values for package PG-SSOP-14 exposed pad added In “Package Outlines” on Page 22 Outlines for package PG-SSOP-14 exposed pad added 1.0 Data Sheet 2008-05-29 final data sheet 25 Rev. 1.
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Edition 2008-09-24 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.