TLE4279GM

5-V Low Drop Fixed Voltage Regulator TLE 4279 Features • • • • • • • • • • • • Output voltage tolerance ≤ ±2% 150 mA current capability Very low current consumption Early warning Reset output low down to VQ = 1 V Overtemperature protection Reverse polarity proof Adjustable reset threshold Very low-drop voltage Wide temperature range Green Product (RoHS compliant) AEC Qualified P-DSO-8-3, -6, -7, -8, -9 Functional Description This device is an automotive suited voltage regulator with P-DSO-14-3, -8, -9, -11, 14 a fixed 5-V output, e.g. in a PG-DSO-8-16 package. The maximum operating voltage is 45 V. The output is able to drive 150 mA load. It is short circuit protected and the thermal shutdown switches the output off if the junction temperature is in excess of 150 °C. A reset signal is generated for an output voltage of VQ < 4.65 V. The reset threshold voltage can be decreased by external connection of a voltage divider. The reset delay time can be set by an external capacitor. If the application requires pull-up resistors at the logic outputs (Reset, Sense Out) the TLE 4269 with integrated resistors can be used. It is also possible to supervise the input voltage by using an integrated comparator to give a low voltage warning. Type TLE 4279 G TLE 4279 GM Data Sheet 1 Package PG-DSO-8-16 PG-DSO-14-30 Rev. 2.4, 2007-03-20 TLE 4279 PG-DSO-8-16 Ι SΙ RADJ D 1 2 3 4 8 7 6 5 AEP01668 Q SO RO GND Figure 1 Table 1 Pin No. 1 2 3 4 5 6 7 8 I SI Pin Configuration (top view) Pin Definitions and Functions (TLE 4279 G) Symbol Function Input; block to GND directly at the IC with a ceramic capacitor Sense input; if not needed connect to Q Reset threshold adjust; if not needed connect to ground Reset delay; to select the delay time, connect to GND via external capacitor Ground Reset output; open-collector output. Keep open, if not needed Sense output; open-collector output. Keep open, if not needed 5-V output; connect to GND with a 10 µF capacitor, ESR < 10 Ω RADJ D GND RO SO Q Data Sheet 2 Rev. 2.4, 2007-03-20 TLE 4279 PG-DSO-14-30 RADJ D GND GND GND GND RO 1 2 3 4 5 6 7 14 13 12 11 10 9 8 AEP02248 SI Ι GND GND GND Q SO Figure 2 Table 2 Pin No. 1 2 3, 4, 5, 6 7 8 9 13 14 Pin Configuration (top view) Pin Definitions and Functions (TLE 4279 GM) Symbol Function RADJ D GND RO SO Q I SI Reset threshold adjust; if not needed connect to GND Reset delay; connect to GND via external delay capacitor for setting delay time Ground Reset output; open-collector output. Keep open, if not needed Sense output; open-collector output. Keep open, if not needed 5-V output; connect to GND via 10 µF capacitor, ESR < 10 Ω Ground Input; block to GND directly at the IC by a ceramic capacitor Sense input; if not needed connect to Q 10, 11, 12 GND Data Sheet 3 Rev. 2.4, 2007-03-20 TLE 4279 Circuit Description The control amplifier compares a reference voltage, made highly accurate by resistance balancing, with a voltage proportional to the output voltage and drives the base of the series PNP transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. The reset output RO is in high-state if the voltage on the delay capacitor CD is greater or equal VUD. The delay capacitor CD is charged with the current ID for output voltages greater than the reset threshold VRT. If the output voltage gets lower than VRT (‘reset condition’) a fast discharge of the delay capacitor CD sets in and as soon as VD gets lower than VLD the reset output RO is set to low-level. The time gap for the delay capacitor discharge is the reset reaction time tRR. The reset threshold VRT can be decreased via an external voltage divider connected to the pin RADJ. In this case the reset condition is reached if VQ < VRT and VRADJ < VRAQDJ,TH. Dimensioning the voltage divider (see Figure 4) according to: VTHRES = VRADJ,TH × (RRADJ1 + RRADJ2) / RRADJ2, (1) the reset threshold can be decreased down to 3.5 V. If the reset-adjust-option is not needed the RADJ-pin should be connected to GND causing the reset threshold to go to its default value (typ. 4.65 V). A built in comparator compares the signal of the pin SI, normally fed by a voltage divider from the input voltage, with the reference and gives an early warning on the pin SO. It is also possible to superwise another voltage e.g. of a second regulator, or to build a watchdog circuit with few external components. Application Description The input capacitor CI is necessary for compensating line influences. Using a resistor of approx. 1 Ω in series with CI, the oscillating circuit consisting of input inductivity and input capacitance can be damped. The output capacitor CQ is necessary for the stability of the regulating circuit. Stability is guaranteed at values ≥ 10 µF and an ESR ≤ 10 Ω within the operating temperature range. Both reset output and sense output are open collector outputs and have to be connected to 5 V output via external pull-up resistors ≥ 10 kΩ. For small tolerances of the reset delay the spread of the capacitance of the delay capacitor and its temperature coefficient should be noted. Data Sheet 4 Rev. 2.4, 2007-03-20 TLE 4279 Ι Error Amplifier Reference Current and Saturation Control Q Trimming D RO & Reference SO RADJ SI AEB01955 Figure 3 Block Diagram Data Sheet 5 Rev. 2.4, 2007-03-20 TLE 4279 Table 3 Absolute Maximum Ratings Tj = -40 to 150 °C Parameter Input Input voltage Input current Sense Input Input voltage Input current Reset Threshold Voltage Current Reset Delay Voltage Current Ground Current Reset Output Voltage Current Sense Output Voltage Current 5-V Output Output voltage Output current Temperature Junction temperature Storage temperature Symbol Limit Values Min. Max. 45 – 45 1 7 10 7 – – 7 – 7 – 7 – 150 150 V – V mA V mA V – mA V – V – V mA °C °C – internal limited – – – – – internal limited – – internal limited – internal limited – – – – Unit Notes VI II VSI ISI VRADJ IRADJ VD ID IGND VR IR VSO ISO VQ IQ Tj TStg -40 – -40 1 -40 -10 -0.3 – 50 -0.3 – -0.3 – -0.5 -10 – -50 Data Sheet 6 Rev. 2.4, 2007-03-20 TLE 4279 Table 3 Absolute Maximum Ratings (cont’d) Tj = -40 to 150 °C Parameter Operating Range Input voltage Junction temperature Thermal Data Junction-ambient Junction-pin 1) measured to Pin 4 Symbol Limit Values Min. Max. 45 150 200 70 30 Unit Notes VI Tj Rthja Rthjp – -40 V °C K/W K/W K/W – – PG-DSO-8-16 PG-DSO-14-30 PG-DSO-14-30 1) – – – Data Sheet 7 Rev. 2.4, 2007-03-20 TLE 4279 Table 4 Characteristics VI = 13.5 V; Tj = -40 °C < Tj < 125 °C Parameter Output voltage Current limit Current consumption; Iq = II - IQ Current consumption; Iq = II - IQ Current consumption; Iq = II - IQ Drop voltage Load regulation Line regulation Reset Generator Switching threshold Reset adjust switching voltage Reset low voltage Upper delay switching threshold Lower delay switching threshold Charge current Delay time L → H Delay time H → L Symbol Limit Values Min. Typ. 5.00 200 150 250 2 0.25 10 10 Max. 5.10 500 300 700 8 0.5 30 40 V mA µA µA mA V mV mV 4.90 150 – – – – – – Unit Measuring Condition 1 mA ≤ IQ ≤ 100 mA 6 V ≤ VI ≤ 16 V – VQ IQ Iq Iq Iq Vdr ∆VQ ∆VQ IQ ≤ 1 mA, Tj < 85 °C IQ = 10 mA IQ = 50 mA IQ = 100 mA1) IQ = 5 mA to 100 mA VI = 6 V to 26 V IQ = 1 m A – VRT VRADJ,TH VRO,SAT VUD VLD 4.50 1.26 – 1.4 0.3 – 3.0 17 – 4.65 1.35 0.1 1.8 0.45 – 6.5 28 1 4.80 1.44 0.4 2.2 0.60 0.1 9.5 – – V V V V V V µA ms µs VQ > 3.5 V Rextern = 20 kΩ – – Reset delay low voltage VD,SAT ID td tt VQ < VRT VD = 1 V CD = 100 nF CD = 100 nF Data Sheet 8 Rev. 2.4, 2007-03-20 TLE 4279 Table 4 Characteristics (cont’d) VI = 13.5 V; Tj = -40 °C < Tj < 125 °C Parameter Input Voltage Sense Sense threshold high Sense threshold low Sense output low voltage Sense input current Symbol Limit Values Min. Typ. 1.31 1.20 0.1 Max. 1.38 1.28 0.4 V V V Unit Measuring Condition VSI, high VSI, low VSO, low 1.24 1.16 – – – VSI < 1.20 V; VQ > 3 V; Rextern = 20 kΩ – ISI -1 0.1 1 µA 1) Drop voltage = VI - VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.5 V input.) Data Sheet 9 Rev. 2.4, 2007-03-20 TLE 4279 ΙΙ 1000 µF CΙ 470 nF Ι Q ΙQ RADJ1 Ι RADJ CQ 22 µF TLE 4279 Ι SΙ SI D GND RO RADJ SO VΙ VSΙ CD 100 nF VQ ΙD VD Ι GND VRO VSO VRADJ RADJ2 AES01956 Figure 4 Measuring Circuit VI VQ V RT t < t RR VD V UD V LD V RO VRO, SAT td t RR dV I D = dt C D t t t Power-on-Reset Thermal Shutdown Voltage Dip at Input Undervoltage Secondary Spike Overload at Output AED01542 Figure 5 Data Sheet Reset Timing Diagram 10 Rev. 2.4, 2007-03-20 TLE 4279 Sense Input Voltage VSI, High VSI, Low t Sense Output High Low t AED03049 Figure 6 Sense Input Timing Diagram Data Sheet 11 Rev. 2.4, 2007-03-20 TLE 4279 Charge Current ID versus Temperature Tj ΙD 16 µA 14 12 10 8 6 4 2 0 -40 AED01803 Switching Voltage VUD and VLD versus Temperature Tj 3.2 VD V 2.8 V Ι = 13.5 V 2.4 2.0 1.6 1.2 0.8 VLD 0.4 0 -40 VUD AED01804 V Ι = 13.5 V V C = 1.0 V 0 40 80 120 C 160 Tj 0 40 80 120 C 160 Tj Drop Voltage Vdr versus Output Current IQ 500 V dr mV 400 AED01805 Reset Adjust Switching Threshold VRADJ,TH versus Temperature Tj V RADJ, TH 1.6 1.7 V AED01806 1.5 1.4 Tj = 125 C 200 Tj = 25 C 100 300 1.3 1.2 1.1 1.0 0 0 30 60 90 120 mA 180 0.9 -40 0 40 80 120 C 160 Tj ΙQ Data Sheet 12 Rev. 2.4, 2007-03-20 TLE 4279 Current Consumption IQ versus Input Voltage VI 30 AED01807 Output Voltage VQ versus Input Voltage VI 12 VQ V 10 AED01808 Ι q mA 25 20 RL = 33 Ω 8 15 6 RL = 50 Ω 10 RL = 50 Ω RL = 100 Ω RL = 200 Ω 0 10 20 30 40 V 50 VΙ 4 5 2 0 0 0 2 4 6 8 VΙ V 10 Sense Threshold VSI versus Temperature Tj 1.6 V SI V 1.5 V Ι = 13.5 V AED01809 Output Voltage VQ versus Temperature Tj 5.2 VQ V 5.1 V Ι = 13.5 V AED01671 1.4 Sense Output High 1.3 Sense Output Low 1.2 5.0 4.9 4.8 1.1 4.7 1.0 -40 0 40 80 120 C 160 Tj 4.6 -40 0 40 80 120 C 160 Tj Data Sheet 13 Rev. 2.4, 2007-03-20 TLE 4279 Output Current IQ versus Input Voltage VI 350 AED01810 Current Consumption Iq versus Output Current IQ 12 AED01811 Ι Q mA 300 250 Ι q mA 10 V Ι = 13.5 V Tj = 25 C 8 200 150 100 50 0 Tj = 25 C 6 Tj = 125 C 4 2 0 10 20 30 40 V 50 VΙ 0 0 20 40 60 80 mA 120 ΙQ Current Consumption Iq versus Output Current IQ Ιq 1.6 mA 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 V Ι = 13.5 V Tj = 25 C AED01812 0 10 20 30 40 mA 50 ΙQ Data Sheet 14 Rev. 2.4, 2007-03-20 TLE 4279 Package Outlines 0.35 x 45° 1.75 MAX. 0.175 ±0.07 (1.45) 4 -0.21) 0.19 +0.0 6 1.27 0.41 +0.1 -0.06 8 5 0.1 B 6 ±0.2 0.64 ±0.25 0.2 M A B 8x Index Marking 1 4 5 -0.21) A 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 GPS01229 Figure 7 PG-DSO-8-16 (Plastic Dual Small 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. 2.4, 2007-03-20 8° MAX. TLE 4279 0.35 x 45˚ 1.75 MAX. 0.175 ±0.07 (1.47) C 4 -0.2 1.27 0.41+0.10 2) -0.06 14 B 0.1 0.2 M A B 14x 8 6±0.2 0.64 ±0.25 0.2 M C 1 7 1) 8.75 -0.2 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 8 PG-DSO-14-30 (Plastic Dual Small 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 16 Dimensions in mm Rev. 2.4, 2007-03-20 8˚MAX. 1) 0.19 +0.06 TLE 4279 Revision History Version Rev. 2.4 Date Changes 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4279 Page 1: AEC certified statement added Page 1 and Page 15f: RoHS compliance statement and Green product feature added Page 1 and Page 15f: Packages changed to RoHS compliant version Legal Disclaimer updated Data Sheet 17 Rev. 2.4, 2007-03-20 Edition 2007-03-20 Published by Infineon Technologies AG 81726 Munich, Germany © 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.