Datasheet

ManualsBrandsINFINEON TECHNOLOGIES ManualsVoltage RegulatorsTLE42694G

TLE42694

Low Dropout Fixed Voltage Regulator

Data Sheet, Rev. 1.2, November 2010

Automotive Power

Summary of content (29 pages)

PAGE 1
Data Sheet, Rev. 1.
PAGE 2
Low Dropout Fixed Voltage Regulator 1 TLE42694 Overview Features • • • • • • • • • • • • • • • • • Output Voltage 5 V ± 2% Ouput Current up to 150 mA Very Low Current Consumption Early Warning 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 Protection Suitable for Use in Automotive Electronics Wide Temperature Range from -40 °C up to 150 °C In
PAGE 3
TLE42694 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. 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.
PAGE 4
TLE42694 Block Diagram 2 Block Diagram Ι Q Error Amplifier 20 kΩ 20 kΩ Current and Saturation Control Reference Trimming D RO & Reference SO RADJ SI GND Figure 1 Data Sheet AEB01669 Block Diagram 4 Rev. 1.
PAGE 5
TLE42694 Pin Configuration 3 Pin Configuration 3.1 Pin Assignment PG-DSO-8 PG-DSO-8 Ι SΙ RADJ D 8 7 6 5 1 2 3 4 Q SO RO GND AEP01668 Figure 2 Pin Configuration (top view) 3.
PAGE 6
TLE42694 Pin Configuration 3.3 Pin Assignment PG-DSO-14 PG-DSO-14 RADJ D GND GND GND GND RO 14 13 12 11 10 9 8 1 2 3 4 5 6 7 SI Ι GND GND GND Q SO AEP02248 Figure 3 Pin Configuration (top view) 3.
PAGE 7
TLE42694 Pin Configuration 3.5 Pin Assignment PG-SSOP-14 exposed pad RADJ n.c. D GND n.c. n.c. RO 1 2 3 4 5 6 7 14 13 12 11 10 9 8 SI I n.c. Q n.c. n.c. SO PinConfig_SSOP-14.vsd Figure 4 Pin Configuration (top view) 3.6 Pin Definitions and Functions PG-SSOP-14 exposed pad Table 3 Pin Symbol Function 1 RADJ Reset Threshold Adjust connect an external voltage divider to adjust reset threshold; connect to GND for using internal threshold 2, 5, 6 n.c.
PAGE 8
TLE42694 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 Unit Conditions Min. Max. -40 45 V – VQ, VRO, VSO, VD -0.3 7 V – VRADJ IRADJ -0.
PAGE 9
TLE42694 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.
PAGE 10
TLE42694 General Product Characteristics 4.3 Pos. Thermal Resistance Parameter Symbol Limit Value Min. Typ. Unit Conditions Max. TLE42694G (PG-DSO-8) 4.3.4 Junction to Soldering Point1) RthJSP RthJA – 80 – K/W measured to pin 5 – 113 – K/W 2) 4.3.6 – 170 – K/W Footprint only3) 4.3.7 – 142 – K/W 300mm2 heatsink area on PCB3) 4.3.8 – 136 – K/W 600mm2 heatsink area on PCB3) 4.3.5 Junction to Ambient 1) TLE42694GM (PG-DSO-14) 4.3.
PAGE 11
TLE42694 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.
PAGE 12
TLE42694 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 100 µA < IQ < 100 mA 6 V < VI < 18 V 5.1.2 Output Current Limitation 150 5.1.
PAGE 13
TLE42694 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_TJ.VSD 5,2 02_IQ_VI.VSD 300 V Q = 4.8 V I Q = 5 mA V I = 13.5 V 5,1 I Q,max [mA] 4,9 V Q [V] 5 4,8 200 150 100 T j = 150 °C 50 4,7 0 4,6 -40 0 40 80 120 0 160 10 4 70 3,5 T j = 25 °C I Q = 10 mA C Q = 10 µF ceramic ΔV Q,line [mV] PSRR [dB] 40 40 30 04_DVQ_DVI.
PAGE 14
TLE42694 Block Description and Electrical Characteristics Typical Performance Characteristics Voltage Regulator Load Regulation ΔVQ,load versus Output Current Change ΔIQ Output Capacitor Series Resistor ESR(CQ) versus Output Current IQ 05_DVQ_DIQ.VSD 0 06_ESR_IQ.VSD 100 VI = 13.5 V C Q = 10 µF V I = 13.
PAGE 15
TLE42694 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. – 210 280 Unit Conditions 5.2.1 Current Consumption Iq = II - IQ Iq µA 5.2.2 – 240 300 µA 5.2.3 5.2.4 – – 0.7 3.
PAGE 16
TLE42694 Block Description and Electrical Characteristics Typical Performance Characteristics Current Consumption Current Consumption Iq versus Output Current IQ (IQ low) Current Consumption Iq versus Output Current IQ 09_IQ_IQ_IQLOW.VSD 1,6 V I = 13.5 V T j = 25 °C 1,4 V I = 13.5 V T j = 25 °C 10 8 1 I q [mA] I q [mA] 1,2 10_IQ_IQ.VSD 12 0,8 0,6 6 4 0,4 2 0,2 0 0 0 5 10 15 20 25 0 I Q [mA] 20 40 60 80 100 120 I Q [mA] Current Consumption Iq versus Input Voltage VI 11_IQ_VI.
PAGE 17
TLE42694 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.
PAGE 18
TLE42694 Block Description and Electrical Characteristics 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. For selecting the default threshold connect pin RADJ to GND. When dimensioning the voltage divider, take into consideration that there will be an additional current constantly flowing through the resistors.
PAGE 19
TLE42694 Block Description and Electrical Characteristics I Q RRO Int. Supply Control CQ RO ID,ch RRO,ext Reset I RO VDST VRADJ,th VDD optional Supply OR RADJ,1 MicroController RADJ I RADJ GND optional ID,dch D BlockDiagram_ResetAdjust.vsd RADJ,2 GND CD Figure 6 Data Sheet Block Diagram Reset Function 19 Rev. 1.
PAGE 20
TLE42694 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 7 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 20 Rev. 1.
PAGE 21
TLE42694 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. 4.5 4.65 4.8 V VQ decreasing Output Undervoltage Reset 5.3.1 Default Output Undervoltage Reset VRT Switching Thresholds Output Undervoltage Reset Threshold Adjustment 5.3.
PAGE 22
TLE42694 Block Description and Electrical Characteristics Typical Performance Characteristics Power On Reset Delay Time trd versus Junction Temperature Tj Power On Reset Delay Time trd versus Capacitance CD 12_TRD_TJ.VSD 35 13_trd_CD.vsd 70 T j = 25 °C 30 60 25 50 20 40 t r d [m s] t rd [ms] C D = 100 nF 15 30 10 20 5 10 0 -40 0 40 80 120 0 160 0 T j [°C] Data Sheet 50 100 150 200 250 C D [nF] 22 Rev. 1.
PAGE 23
TLE42694 Block Description and Electrical Characteristics 5.4 Early Warning Function The additional sense comparator provides an early warning function: Any voltage (e.g. the input voltage) can be monitored, an undervoltage condition is indicated by setting the comparator’s output to low. Sense Input Voltage VSI, High VSI, Low t Sense Output High Low t AED03049 Figure 8 Sense Timing Diagram Electrical Characteristics Early Warning Function VI = 13.
PAGE 24
TLE42694 Block Description and Electrical Characteristics Electrical Characteristics Early Warning 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 Min. Typ. Max. Unit Conditions VSI < VSI,low VI > 5.5 V Sense Comparator Output 5.4.5 Sense Output Low Voltage VSO,low – 0.1 0.4 V 5.4.6 Sense Output Internal Pull-Up Resistor to VQ RSO,int 10 20 40 kΩ – 5.4.
PAGE 25
TLE42694 Package Outlines 6 Package Outlines 0.1 2) 0.41+0.1 -0.06 0.2 8 5 1 4 5 -0.2 1) M 0.19 +0.06 C B 8 MAX. 1.27 4 -0.2 1) 1.75 MAX. 0.175 ±0.07 (1.45) 0.35 x 45˚ 0.64 ±0.25 6 ±0.2 A B 8x 0.2 M C 8x A Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area GPS01181 Figure 9 PG-DSO-8 You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.
PAGE 26
TLE42694 Package Outlines 1.75 MAX. 1) 4 -0.2 B 1.27 0.64 ±0.25 0.1 2) 0.41+0.10 -0.06 6±0.2 0.2 M A B 14x 14 0.2 M C 8 1 7 1) 8.75 -0.2 8˚MAX. 0.19 +0.06 0.175 ±0.07 (1.47) 0.35 x 45˚ C A Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area GPS01230 Figure 10 Data Sheet PG-DSO-14 26 Rev. 1.
PAGE 27
TLE42694 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.
PAGE 28
TLE42694 Revision History 7 Revision 1.2 1.
PAGE 29
Edition 2010-11-26 Published by Infineon Technologies AG 81726 Munich, Germany © 2010 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.