TLE42644_14 INFINEON | Alldatasheet

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Technical content

Rev. 1.1, 2014-07-03 TLE42644 Low Dropout Fixed Voltage Regulator TLE42644G

TLE42644G PG-SOT223-4 42644 Data Sheet 2 Rev. 1.1, 2014-07-03 Low Dropout Fixed Voltage Regulator TLE42644G 1O v e r v i e w

Features

  • Output Voltage 5 V ± 2 % up to Output Currents of 50 mA
  • Output Voltage 5 V ± 3 % up to Output Currents of 100 mA
  • Very Low Dropout Voltage
  • Very Low Current Consumption: typ. 40 µA
  • Output Current Limitation
  • Reverse Polarity Protection
  • Overtemperature Shutdown
  • Wide Temperature Range From -40 °C up to 150 °C
  • Suitable for Use in Automotive Electronics
  • Green Product (RoHS compliant)
  • AEC Qualified

Description

The TLE42644 is a monolithic integrated low dropout fixed vo ltage regulator for load currents up to 100 mA. It is the 1-to-1 replacement product for the TLE4264-2. It is functional compatible to the TLE4264, but has a reduced quiescent current of typ. 40 µA. The TLE42644 is especially designed for applications requiring very low standby currents, e.g. with a permanent connection to the car’s battery. The device is available in the small surface mounted PG-SOT223-4 package and is pin compatible to the TLE4264-2 and the TLE4264. The device is designed for the harsh environment of automotive applicati ons. Therefore it is protected against overload, short circuit and overtemperature conditions by the implemented output current limitation and the overtemperature shutdown circuit. The TLE42644 can be also used in all other applications requiring a stabilized 5 V voltage. An input voltage up to 45 V is regulated to VQ,nom = 5 V with a precision of ±3 %. An accuracy of ±2 % is kept for load currents up to 50 mA.

Data Sheet 3 Rev. 1.1, 2014-07-03

2 Block Diagram

Q GND ΙInput GND Output AEB02870 Circuit Amplifier Control Buffer

Data Sheet 4 Rev. 1.1, 2014-07-03 TLE42644 Pin Configuration

3 Pin Configuration

3.1 Pin Assignment PG-SOT223-4

Figure 2 Pin Configuration (top view)

3.2 Pin Definitions and Functions PG-SOT223-4

Pin No. Symbol Function 1I Input block to ground directly at the IC with a ceramic capacitor 2G N D Ground 3Q Output block to ground with a capacitor close to the IC terminals, respecting the values given for its capacitance and ESR in “Functional Range” on Page 5 4 / Heat Slug GND Ground / Heat Slug internally connected to leadframe and GND; connect to GND and heatsink area AEP02868 123 GNDΙ Q GND

General Product Characteristics Data Sheet 5 Rev. 1.1, 2014-07-03

4 General Product Characteristics

4.1 Absolute Maximum Ratings

  1. Stresses above the ones listed here may cause perma nent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. Integrated protection func tions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous repetitive operation.

4.2 Functional Range

Table 1 Absolute Maximum Ratings 1) Tj = -40 °C to 150 °C; all voltages with respect to ground, (unless otherwise specified) 1) not subject to production test, specified by design Parameter Symbol Values Unit Note / Test Condition Number Min. Typ. Max. Input I Voltage VI -30 – 45 V – P_4.1.1 Output Q Voltage VQ -0.3 – 32 V – P_4.1.2 Temperature Junction temperature Storage temperature Tstg -50 – 150 °C – P_4.1.4 ESD Susceptibility ESD Absorption VESD,HBM -3 – 3 kV Human Body Model (HBM)2) 2) ESD susceptibility Human Body Model “H BM” according to AEC-Q100-002 - JESD22-A114 P_4.1.5 ESD Absorption VESD,CDM -1500 – 1500 V Charge Device Model (CDM)3) at all pins 3) ESD susceptibility Charged Device Model “CDM” according to ESDA STM5.3.1 P_4.1.6 Table 2 Functional Range Parameter Symbol Values Unit Note / Test Condition Number Min. Typ. Max. Input voltage VI 5.5 – 40 V – P_4.2.1 Output Capacitor’s Requirements for Stability

Data Sheet 6 Rev. 1.1, 2014-07-03 TLE42644 General Product Characteristics Note: Within the functional or operating range, the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the Electrical Characteristics table.

4.3 Thermal Resistance

Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go to www.jedec.org. Output Capacitor’s Requirements for Stability ESR(CQ) ––2 Ω 1) P_4.2.3 Junction temperature Tj -40 – 150 °C – P_4.2.4 1) relevant ESR value at f =1 0k H z Table 3 Thermal Resistance Parameter Symbol Values Unit Note / Test Condition Number Min. Typ. Max. TLE42644G (PG-SOT223-4) Junction to Case1) 1) Not subject to production test, specified by design. RthJC – 17 – K/W measured to heat slug P_4.3.1 Junction to Ambient1) RthJA – 54 – K/W FR4 2s2p board 2) 2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The Product (Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm³ board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu). Where applicable a thermal via array under the exposed pad contacted the first inner copper layer. P_4.3.2 Junction to Ambient1) RthJA – 139 – K/W FR4 1s0p board, footprint only3) 3) Specified RthJA value is according to Jedec JESD 51-3 at natural convection on FR4 1s0p board; The Product (Chip+Package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 1 copper layer (1 x 70µm Cu). P_4.3.3 Junction to Ambient1) RthJA – 73 – K/W FR4 1s0p board, 300 mm² heatsink area3) P_4.3.4 Junction to Ambient1) RthJA – 64 – K/W FR4 1s0p board, 600 mm² heatsink area3) P_4.3.5 Table 2 Functional Range (cont’d) Parameter Symbol Values Unit Note / Test Condition Number Min. Typ. Max.

Electrical Characteristics

Data Sheet 7 Rev. 1.1, 2014-07-03

5 Electrical Characteristics

5.1 Electrical Character istics Voltage Regulator

Table 4 Electrical Characteristics VI = 13.5 V; Tj = -40 °C to 150 °C; all voltages with respect to ground (unless otherwise specified) Parameter Symbol Values Unit Note / Test Condition Number Min. Typ. Max. Output Q Output Voltage VQ 4 . 95 . 05 . 1V 5 m A < IQ<5 0m A 6V< VI <1 6V P_5.1.1 Output Voltage VQ 4.85 5.0 5.15 V 5 mA < IQ<100 mA 6V< VI <2 1V P_5.1.2 Output Voltage At Low Output Currents VQ 4.80 5.0 5.20 V 100 µA < IQ<5 mA 6V< VI <2 1V P_5.1.3 Dropout Voltage Vdr –2 2 0 5 0 0 m V IQ = 100 mA Vdr = VI – VQ P_5.1.4 Load Regulation ∆VQ, lo – 5 09 0m V IQ = 1 mA to 100 mA VI =1 3 . 5V P_5.1.5 Line Regulation ∆VQ, li –53 0 m V Vl = 6 V to 28 V IQ =1m A P_5.1.6 Output Current Limitation IQ 150 200 500 mA 1) 1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V. P_5.1.7 Power Supply Ripple Rejection2) 2) not subject to production test, specified by design PSRR –6 8 –d B fr =1 0 0H z ; Vr = 0.5 Vpp P_5.1.8 Overtemperature Shutdown Threshold Tj,sd 1 5 1– 2 0 0° C Tj increasing P_5.1.9 Overtemperature Shutdown Threshold Hysteresis Tj,sdh –2 5 –° C Tj decreasing P_5.1.10 Current Consumption Quiescent Current Iq = II – IQ Iq – 4 06 0µ A IQ = 100 µA, Tj < 85 °C P_5.1.11 Quiescent Current Iq = II – IQ Iq – 4 07 0µ A IQ = 100 µA P_5.1.12 Current Consumption Iq = II – IQ Iq –1 . 7 4m A IQ = 50 mA P_5.1.13

Data Sheet 8 Rev. 1.1, 2014-07-03 TLE42644

5.2 Typical Performance Characteristics Voltage Regulator

Current Consumption Iq versus Output Current IQ Current Consumption Iq versus Low Output Current IQ Output Voltage Variation ∆VQ versus Junction Temperature TJ Dropout Voltage Vdr versus Output Current IQ AED03342.VSD IQ 20 40 60 80 100 120 mA 1600 mAIq AED03341.VSD IQ 2 4 6 8 10 12 mA 160 100 150 200 250 300 350 400 µAIq AED03344.VSD -40 Tj 0 40 80 °C 160 VVQ IQ = 5 mA 4.90 4.95 5.00 5.05 5.10 5.15 AED03343.VSD IQ 20 40 60 80 100 120 mA 1600 100 150 200 250 300 350 400 mVVdr Tj = 125°C Tj = 25°C Tj = -40°C

Data Sheet 9 Rev. 1.1, 2014-07-03 Output Voltage VQ versus Input Voltage VI Maximum Output Current IQ versus Input Voltage VI Region Of Stability: Output Capacitor’s ESR ESR(CQ) versus Output Current IQ AED03345.VSD VI VQ 2468 1 00 V V RL = 50 Ω AED03346.VSD 100 150 200 250 300 350 400 450 0 1 02 03 04 0 V I [V] IQ,max [mA] T j = -40 °C T j = 25 °C T j = 150 °C AED 03347. VSD 0,01 0,1 0 2 04 06 08 0 1 0 0 I Q [mA] ESR(C Q ) [Ω] C Q = 10 µF VI = 13.5 V Stable Region Unstable Region

Data Sheet 10 Rev. 1.1, 2014-07-03 TLE42644

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.

6.1 Application Diagram

Figure 3 Application Diagram

6.2 Selection of External Components

6.2.1 Input Pin

The typical input circuitry for a linear voltage regulator is shown in the application diagram above. A ceramic capacitor at the input, in the range of 100 nF to 470 nF, is recommended to filter out the high frequency disturbances imposed by the line e.g. ISO pulses 3a/b. This capacitor must be placed very close to the input pin of the linear voltage regulator on the PCB. An aluminum electrolytic capacitor in the range of 10 µF to 470 µF is recommended as an input buffer to smooth out high energy pulses, such as ISO pulse 2a. This capacitor should be placed close to the input pin of the linear voltage regulator on the PCB. An overvoltage suppressor diode can be used to furthe r suppress any high voltag e beyond the maximum rating of the linear voltage regulator and protect the device against any damage due to over-voltage. The external components at the input are not mandatory for the operation of the voltage regulator, but they are recommended in case of possible external disturbances.

6.2.2 Output Pin

An output capacitor is mandatory for the stability of linear voltage regulators. The requirement to the output capacitor is given in “Functional Range” on Page 5 . The graph “Region Of Stability: Output Capacitor’s ESR ESR(CQ) versus Output Current IQ” on Page 9 shows the stable operation range of the device. Supply 100nF10µF CI1CI2 Regulated Output VoltageIQ CQ <45V DI Load (e. g. Micro Controller ) GND II 10µF (ESR<2Ω)Bandgap Reference GND QI Temperature Shutdown Current Limitation

Data Sheet 11 Rev. 1.1, 2014-07-03 TLE42644 is designed to be stable with extremely low ESR capacitors. According to the automotive environment, ceramic capacitors with X5R or X7R dielectrics are recommended. The output capacitor should be placed as close as possible to the regulat or’s output and GND pins and on the same side of the PCB as the regulator itself. In case of rapid transients of input voltage or load current, the capacitance should be dimensioned in accordance and verified in the real application that the output stability requirements are fulfilled.

6.3 Thermal Considerations

Knowing the input voltage, the output voltage and the load profile of the application, the total power dissipation can be calculated: (1) with

  • PD: continuous power dissipation
  • VI: input voltage
  • VQ: output voltage
  • IQ: output current
  • Iq: quiescent current The maximum acceptable thermal resistance RthJA can then be calculated: (2) with
  • Tj,max: maximum allowed junction temperature
  • Ta: ambient temperature Based on the above calculation the proper PCB type and the necessary heat sink area can be determined with reference to the specification in “Thermal Resistance” on Page 6. Example Application conditions: VI = 13.5 V VQ = 5 V IQ = 50 mA Ta = 105 °C Calculation of RthJA,max: PD =( VI – VQ) • IQ + VI • Iq = (13.5 V – 5 V) • 50 mA + 13.5 V • 4 mA = 0.425 W + 0.054 W =0 . 4 7 9W PD VI VQ–() IQ VI Iq×+×= RthJA max, Tjm a x, Ta– PD

Data Sheet 12 Rev. 1.1, 2014-07-03 TLE42644 RthJA,max =( Tj,max – Ta) / PD = 93.9 K/W As a result, the PCB design must ensure a thermal resistance RthJA lower than 93.9 K/W. By considering TLE42644G (PG-SOT223-4 package) and according to “Thermal Resistance” on Page 6 , at least 300 mm² heatsink area is needed on the FR4 1s0p PCB, or the FR4 2s2p board can be used.

6.4 Reverse Polarity Protection

TLE42644 is self protected against reve rse polarity faults and allows negati ve supply voltage. External reverse polarity diode is not needed. However, the absolute maximum ratings of the device as specified in “Absolute Maximum Ratings” on Page 5 must be kept. The reverse voltage causes several sma ll currents to flow into the IC henc e increasing its junction temperature. As the thermal shut down circuitry does not work in the reverse polarity condition, designers have to consider this in their thermal design.

Data Sheet 13 Rev. 1.1, 2014-07-03

7 Package Outlines

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). SOT223-PO V04 12 3 ±0.1 ±0.04 0.5 MIN. 0.28 0.1 MAX. 6.5±0.2 A 4.6 2.30.7±0.1

0.25 M A

1.6±0.1 7±0.3 B0.25 M ±0.23.5 B 0...10˚ For further information on alternative packages, please visit our website: http://www.infineon.com/packages. Dimensions in mm

Data Sheet 14 Rev. 1.1, 2014-07-03 TLE42644

Revision History

8 Revision History

1.0 2009-06-26 initial version data sheet 1.01 2009-09-30 updated version data sheet; typing error corrected in Table 1 “Absolute Maximum Ratings” on Page 5: In Voltage min. value corrected from “-42V” to “- 30V” 1.1 2014-07-03 Application information added

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© 2014 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.