TLE4252G

Low Dropout Tracking Regulator TLE 4252 G Features • • • • • • • • • • • • Output tracking tolerance to reference ≤ ±0.2% Output voltage adjust down to 1.5 V 250 mA output current capability Enable function Very low current consumption in OFF mode Wide operation range: up to 40 V Wide temperature range: -40 °C ≤ Tj ≤ 150 °C Output protected against short circuit to GND and Battery Overtemperature protection Reverse polarity proof Green Product (RoHS compliant) AEC Qualified Short Functional Description The TLE 4252 is a monolithic integrated low-dropout voltage tracking regulator in a PG-TO263-5 package. It is designed to supply off-board systems, e.g. sensors in engine management systems under the severe conditions of automotive applications. Therefore, the device is equipped with additional protection functions against reverse polarity and short circuit to GND and battery. With supply voltages up to 40 V, the output voltage follows a reference voltage with high accuracy. The reference voltage can be applied directly to the adjust input or by an external resistor divider. The minimum reference voltage at the component’s pin is 1.5 V. The output is able to drive loads up to 250 mA following e.g. the 5 V output of a main voltage regulator as reference. The TLE 4252 tracking regulator can be switched into stand-by mode to reduce the current consumption to less than 2µA. This feature makes the IC suitable for low power battery applications. This product is also available in a PG-TO252-5 package. See datasheet “TLE 4252 D”. Type TLE 4252 G Data Sheet Package PG-TO263-5 1 Marking TLE4252G Rev. 1.0, 2008-05-09 TLE 4252 G Block Diagram Saturation Control and Protection Circuit Temperature Control I Q ADJ GND TLE 4252 D AEB03536.VSD EN Figure 1 Internal Circuit Blocks Data Sheet 2 Rev. 1.0, 2008-05-09 TLE 4252 G TAB PG-TO-263 -5 1 2 3 4 5 I GND EN ADJ TLE4252 G_PINOUT. VSD Figure 2 Table 1 Pin No. 1 I Pin Configuration Pin Definitions and Functions Symbol Function Supply Voltage Input; Input for battery or a pre-regulated voltage of a e.g. a DC to DC converter. For compensating line influences, a capacitor to GND close to the IC pins is recommended. Enable Input; a high signal turns on the IC, with a low signal the tracking regulator is turned off. Ground; connect to TAB. Adjust Input; input for the reference voltage which can be connected directly or by voltage divider to the reference (see “Application Information” on Page 8). Regulator Output; block to GND with a capacitor close to the IC pins, respecting the values given for its capacitance CQ and ESR in table “Functional Range” on Page 5. Connect to GND and heatsink area. 2 3 4 EN GND ADJ 5 Q TAB – Data Sheet 3 Q Rev. 1.0, 2008-05-09 TLE 4252 G Table 2 Parameter Absolute Maximum Ratings Symbol Limit Values Min. Max. 45 – 45 – 45 – 45 – 150 150 2 V A V A V A V A °C °C kV – Limited internally 1) – Limited internally – Limited internally – Limited internally – – Human Body Model (HBM) Unit Remarks Supply Voltage Input I Voltage Current Enable Input EN Voltage Current Adjust Input ADJ Voltage Current Output Q Voltage Current Temperature Junction temperature Storage temperature ESD-Protection Voltage VI II VEN IEN VADJ IADJ VQ IQ Tj Tstg VESD -42 – -42 – -42 – -2 – -40 -50 -2 1) For reverse current flowing in case of negative supply voltage, see table “Electrical Characteristics” on Page 6. A reverse current may heat up the device. The integrated temperature protection is not operating at negative supply voltage. Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: Integrated protection functions 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 . Data Sheet 4 Rev. 1.0, 2008-05-09 TLE 4252 G Table 3 Parameter Functional Range Symbol Limit Values Min. Typ. – – – – Max. 40 40 40 V V V V Unit Remarks In- and Output Voltage VI Enable input voltage VEN Adjust input voltage VADJ CMR Error amplifier Supply voltage common mode range Output Capacitor Output Capacitor’s Requirement Temperature Junction temperature Tj 3.5 0 1.5 1.5 VI > VADJ + Vdr – – VI 0.5 VQ ≤ VADJ + ∆VQ with VFB = VQ – 1) CQ 10 – – – – 5 150 µF Ω °C ESR(CQ) – -40 – 1) Relevant ESR value at f = 10 kHz. Not subject to production test; specified by design. Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table. . Table 4 Parameter Junction to case Junction to ambient Thermal Resistance PG-TO263-5 1) Symbol Limit Values Min. Typ. 4.7 24 35 44 Max. 6 – – – K/W K/W K/W K/W – 2s2p PCB 2) PCB heat sink area 600 mm2 3) PCB heat sink area 300 mm2 3) – – – – Unit Remarks RthJC RthJA 1) Not subject to production test; specified by design. 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 tab contacted the first inner copper layer. 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 x 114.3 x 1.5 mm3 board with 1 copper layer (1 x 70 µm Cu). Data Sheet 5 Rev. 1.0, 2008-05-09 TLE 4252 G Table 5 Electrical Characteristics VI = 13.5 V; 1.5 V ≤ VADJ ≤ VI - 0.6 V; -40 °C < Tj < 150 °C; unless otherwise specified Parameter Symbol Limit Values Min. Output voltage tracking accuracy ∆VQ = VADJ - VQ Output voltage tracking accuracy ∆VQ = VADJ - VQ Dropout voltage ∆VQ -10 Typ. – Max. 10 mV 4.5 V < VI < 26 V; 1 mA < IQ < 200 mA; 3.5 V < VI < 32 V; 10 mA < IQ < 100 mA; 3.5 V < VI < 4.5 V; 1 mA < IQ < 200 mA; Unit Test Condition Regulator Performance, Tracker Output Q ∆VQ -10 -25 – – 280 10 25 600 mV mV mV Vdr – Output current limitation Output capacitor Current consumption Iq = II - IQ Current consumption Iq = II - IQ Quiescent current (stand-by) Iq = II - IQ Reverse current Load regulation Line regulation Power supply ripple rejection IQ,lim CQ Iq Iq Iq 250 10 – – – 350 – 10 100 0 500 – 25 150 2 mA µF mA µA µA IQ = 200 mA; VADJ > 3.5 V; VEN = VEN, on1) VQ = 5.0 V 2) 0 ≤ ESR ≤ 5 Ω at 10 kHz Ir ∆VQ ∆VQ – – – – 0.5 – – 60 5 10 10 – mA mV mV dB PSSR IQ = 200 mA; VQ = 5 V IQ < 100 µA; Tj < 85 °C; VEN = 5 V VEN = 0 V; VEN/ADJ = 0 V; Tj < 85 °C VQ = 16 V; VI = 0 V 1 mA < IQ < 200 mA 5 V < VI < 32 V; IQ = 5 mA fI, ripple = 100 Hz; VI, ripple = 0.5 Vpp3) Data Sheet 6 Rev. 1.0, 2008-05-09 TLE 4252 G Table 5 Electrical Characteristics (cont’d) VI = 13.5 V; 1.5 V ≤ VADJ ≤ VI - 0.6 V; -40 °C < Tj < 150 °C; unless otherwise specified Parameter Adjust Input ADJ Input biasing current Enable Input EN Device on voltage range Device off voltage range Input current Symbol Limit Values Min. Typ. 0.1 – – 2 1.5 Max. 0.5 40 0.8 5 – µA V V µA MΩ Unit Test Condition IADJ VEN, on VEN, off – 2.0 0 -1 – VADJ = 5 V VQ settled VQ < 0.1 V VEN = 5 V – IEN EN pull-down resistor REN 1) Measured when the output voltage VQ has dropped 100 mV from the nominal value. 2) The current limit depends also on the input voltage, see graph output current vs. input voltage in the diagrams section. 3) Specified by design. Not subject to production test. Data Sheet 7 Rev. 1.0, 2008-05-09 TLE 4252 G Application Information VBAT I Main µC Supply e.g. TLE 4271-2 TLE 4278 TLE 4470 etc. GND Q VDD R1ADJ µC e.g. C167 R2ADJ I/O 4 EN ADJ TLE 4252 D Q 5 VQ < VREF 1 I GND AEA03535.VSD Figure 3 Application Circuit: Output Voltage < Reference Voltage Figure 3 shows a typical application circuit with VQ < VREF. Of course, also VQ = VREF is feasible by directly connecting the reference pin of the TLE 4252 D to the appropriate voltage level without voltage divider. The output voltage calculates to: R 2ADJ V Q = VREF ×  -----------------------------------   R 1ADJ + R 2ADJ (1) Data Sheet 8 Rev. 1.0, 2008-05-09 TLE 4252 G Typical Performance Characteristics Output Current Limit IQ versus Input Voltage VI I Q 1 ,2 500 mA 400 A E D 03537.V S D Drop Voltage VDR versus Output Current IQ Vdr [mV] TL E4 2 5 2 _ VDR-IQ .VSD T j = 2 5°C 1000 300 100 200 Tj = 25 °C 10 100 0 0 10 20 30 40 V 50 0.2 1 10 100 I Q [mA] V I1,2 Current Consumption Iq versus Output Current IQ TL E4 2 5 2 _ IQ -IQ .VSD Drop Voltage VDR versus Junction Temperature TJ 600 Vdr [mV] TL E4 2 5 2 _ VDR-TJ .VSD I q [mA] V I = 13.5 V V A DJ = 5 V T j = 25 °C 10 400 I Q = 200 mA 1 300 I Q = 100 mA 200 0.1 100 0.2 1 10 100 I Q [mA] -40 -20 0 20 40 60 80 100 120 140 T j [°C] Data Sheet 9 Rev. 1.0, 2008-05-09 TLE 4252 G Package Outlines 4.4 10 ±0.2 0...0.3 8.5 1) A 1.27 ±0.1 B 0.05 1±0.3 (15) 9.25 ±0.2 7.55 1) 2.4 0.1 4.7 ±0.5 2.7 ±0.3 10.8 0...0.15 5 x 0.8 ±0.1 4 x 1.7 0.25 M 0.5 ±0.1 16.15 AB 8˚ MAX. 0.1 B 0.6 1.1 7.9 GPT09113 HLG09441 1) Typical Metal surface min. X = 7.25, Y = 6.9 All metal surfaces tin plated, except area of cut. Figure 4 PG-TO263-5-1 Outline and Footprint (Reflow Soldering) 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). For further information on Infineon packages, please visit our website: http://www.infineon.com/packages. Data Sheet 10 4.6 9.4 Dimensions in mm Rev. 1.0, 2008-05-09 TLE 4252 G Revision History Version Date Changes Rev. 1.0 2008-05-09 Final datasheet TLE 4252 G. Corrected swaped numbers at Table 4 "Thermal Resistance PG-TO263-5" on Page 5 (value for 300mm2 vs. 600mm2). Rev. 0.9 2008-04-22 Initial Preliminary Datasheet of TLE 4252 G (PG-TO263-5). Data Sheet 11 Rev. 1.0, 2008-05-09 Edition 2008-05-09 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. 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.