Low Drop Voltage Regulator TLE 4276

Transcription

1 Low Drop Voltage Regulator TLE 4276 Features 5 V, 8.5 V, V or variable output voltage Output voltage tolerance ±4% 4 ma current capability Low-drop voltage Inhibit input Very low current consumption Short-circuit-proof Reverse polarity proof Suitable for use in automotive electronics Green Product (RoHS compliant) AEC Qualified P-TO P-TO P-TO P-TO Type Package Type Package TLE 4276 V5 PG-TO22-5- TLE 4276 GV5 PG-TO TLE 4276 V85 PG-TO22-5- TLE 4276 GV85 PG-TO TLE 4276 V PG-TO22-5- TLE 4276 GV PG-TO TLE 4276 V PG-TO22-5- TLE 4276 GV PG-TO TLE 4276 SV5 PG-TO TLE 4276 DV5 PG-TO TLE 4276 SV85 PG-TO TLE 4276 DV PG-TO TLE 4276 SV PG-TO Data Sheet Rev. 2.7,

2 Functional Description The TLE 4276 is a low-drop voltage regulator in a TO package. The IC regulates an input voltage up to 4 V to,nom = 5. V (V5), 8.5 V (V85), V (V) and adjustable voltage (V). The maximum output current is 4 ma. The IC can be switched off via the inhibit input, which causes the current consumption to drop below µa. The IC is short-circuitproof and includes temperature protection which turns off the device at overtemperature. Dimensioning Information on External Components The input capacitor C I is necessary for compensation of line influences. Using a resistor of approx. Ω in series with C I, the oscillating of input inductivity and input capacitance can be damped. The output capacitor C Q is necessary for the stability of the regulation circuit. Stability is guaranteed at values C Q 22 µf and an ESR of 3 Ω within the operating temperature range. 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 IC also incorporates a number of internal circuits for protection against: Overload Overtemperature Reverse polarity Data Sheet 2 Rev. 2.7,

3 PG-TO22-5- PG-TO PG-TO PG-TO GND Ι GND Q Ι INH Q N.C. (VA) INH N.C. (VA) AEP256 AEP243 Ι GND Q INH N.C. (VA) AEP24 Ι GND Q INH N.C. (VA) AEP242 Figure Pin Configuration (top view) Table Pin Definitions and Functions Pin No. Symbol Function I Input; block to ground directly at the IC with a ceramic capacitor. 2 INH Inhibit; low-active input. 3 GND Ground 4 N.C. VA Not connected for V5, V85, V Voltage Adjust Input; only for adjustable version. Connect an external voltage divider to determine the output voltage. 5 Q Output; block to GND with a 22 µf capacitor, ESR 3 Ω at khz Heatsink Connect to GND. Data Sheet 3 Rev. 2.7,

4 Temperature Sensor Saturation Control and Protection Circuit Ι 6 Q Bandgap Reference Control Amplifier Buffer *) 2 INH **) 4 VA 3 GND *) **) For fixed Voltage Regulator only For adjustable Voltage Regulator only AEB244 Figure 2 Block Diagram Data Sheet 4 Rev. 2.7,

5 Table 2 Absolute Maximum Ratings Parameter Symbol Limit Values Unit Test Condition Min. Max. Input I Voltage V Current I I Internally limited Inhibit INH Voltage NH V Voltage Adjust Input VA Voltage V VA -.3 V Output Q Voltage -. 4 V Current I Q Internally limited Ground GND Current I GND ma Temperature Junction temperature T j -4 5 C Storage temperature T stg -5 5 C Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. Table 3 ESD Rating Parameter Symbol Limit Values Unit Notes Min. Max. ESD Capability V ESD,HBM 2 V Human Body Model Data Sheet 5 Rev. 2.7,

6 Table 4 Operating Range Parameter Symbol Limit Values Unit Remarks Min. Max. Input voltage V Fixed voltage devices V5, V85, V Input voltage V Variable device V Input voltage 4.5 V 4 V Variable device V, < 4 V Junction temperature T j -4 5 C Thermal Resistance Junction ambient R thj-a 65 K/W TO22 Junction ambient R thj-a 8 K/W TO252, TO263 ) Junction case R thj-c 4 K/W ) Package mounted on PCB 8 8.5mm 3 ; 35µ Cu; 5µ Sn; Footprint only; zero airflow. Data Sheet 6 Rev. 2.7,

7 Table 5 Characteristics = 3.5 V; -4 C < T j < 5 C (unless otherwise specified) Parameter Symbol Limit Values Unit Measuring Min. Typ. Max. Condition Output voltage V V5-Version 5 ma < I Q < 4 ma 6 V < < 28 V Output voltage V V5-Version 5 ma < I Q < 2 ma 6 V < < 4 V Output voltage V V85-Version 5 ma < I Q < 4 ma 9.5 V < < 28 V Output voltage V V85-Version 5 ma < I Q < 2 ma 9.5 V < < 4 V Output voltage V V-Version 5 ma < I Q < 4 ma V < < 28 V Output voltage V V-Version 5 ma < I Q < 2 ma V < < 4 V Output voltage tolerance -4 4 % V-Version R 2 < 5 kω + V 4 V > 4.5 V 5 ma I Q 4 ma Output current I Q 4 6 ma limitation ) Current consumption; I q = I I - I Q Current consumption; I q = I I - I Q Current consumption; I q = I I - I Q I q µa NH = V; T j C I q 22 µa I Q = ma I q 5 ma I Q = 25 ma Measuring Circuit Data Sheet 7 Rev. 2.7,

8 Table 5 Current I q 5 25 ma I Q = 4 ma consumption; I q = I I - I Q Drop voltage ) V DR 25 5 mv V5, V85, V I Q = 25 ma V DR = - Drop voltage ) V DR 25 5 mv variable devices I Q = 25 ma > 4.5 V V DR = - Load regulation,lo 5 35 m Q = 5 ma to 4 ma Line regulation,li 5 25 mv V l = 2 V to 32 V I Q = 5 ma Power supply ripple rejection Temperature output voltage drift Characteristics (cont d) = 3.5 V; -4 C < T j < 5 C (unless otherwise specified) Parameter Symbol Min. Typ. Max. Limit Values Unit Measuring Condition PSRR 54 db f r = Hz; V r =.5 Vpp d /dt.5 mv/k Inhibit Inhibit on NH V 4.9 V voltage Inhibit off NH.5.7 V. V voltage Input current I INH 5 2 µa NH = 5 V Measuring Circuit ) Measured when the output voltage has dropped mv from the nominal value obtained at = 3.5 V. Data Sheet 8 Rev. 2.7,

9 Input II I 5 Q I Q Output µf nf TLE 4276 C Q 22 µf R * ) I INH NH INH 2 3 GND 4 * ) VA Voltage Adjust R * ) 2 R L * ) Optional for adjustable Voltage Regulator AES245 Figure 3 Measuring Circuit Input I 5 Q Output C I TLE 4276 C Q R * ) e.g. KL 5 INH 2 3 GND 4 * ) VA Voltage Adjust R * ) 2 * ) Optional for adjustable Voltage Regulator AES246 Figure 4 Application Circuit Data Sheet 9 Rev. 2.7,

10 Application Information for Variable Output Regulator TLE 4276 V, SV, DV, GV The output voltage of the TLE 4276 V can be adjusted between 2.5 V and 2 V by an external output voltage divider, closing the control loop to the voltage adjust pin VA. The voltage at pin VA is compared to the internal reference of typical 2.5 V in an error amplifier. It controls the output voltage. 5 Q Internal Reference 2.5 V Typical V ref Current and Saturation Control R C Q 22 µf 4 VA R 2 AEB284 Figure 5 Application Detail External Components at Output for Variable Voltage Regulator The output voltage is calculated according to Equation (): = (R + R 2 )/R 2 V ref, neglecting I VA () V ref is typically 2.5 V. To avoid errors caused by leakage current I VA, we recommend to choose the resistor value R 2 according to Equation (2): R 2 < 5 kω (2) For a 2.5 V output voltage the output pin Q is directly connected to the adjust pin VA. The accuracy of the resistors R and R 2 add an additional error to the output voltage tolerance. The operation range of the variable TLE 4276 V is +.5 V to 4 V. For internal biasing a minimum input voltage of 4.3 V is required. For output voltages below 4 V the voltage drop is 4.3 V - Data Sheet Rev. 2.7,

11 Typical Performance Characteristics (V5, V85 and V): Voltage V DR versus Output Current I Q Max. Output Current I Q versus Input Voltage V DR 6 mv AED37 I Q 8 ma AED T j = 25 C 6 T j = 25 C = V T j = 25 C ma 4 I Q V 5 Current Consumption I q versus Output Current I Q (high load) Current Consumption I q versus Output Current I Q (low load) 6 AED32.6 AED322 I q ma I q ma T j = 25 C = 3.5 V 3 2 T = 25 C = 3.5 V j ma ma 6 I Q I Q Data Sheet Rev. 2.7,

12 Typical Performance Characteristics for V5: Output Voltage versus Temperature T j 5.2 AED38 Current Consumption I q versus Input Voltage 3 AED967 V 5. Ι q ma 5. = 3.5 V 2 T j = 25 C R L = 2 Ω C 6 T j 2 3 V V Ι 5 Low Voltage Behavior High Voltage Behavior 6 V 5 AED968 I I 3.5 ma 3. AED382_ = T j = 25 C R = 2 Ω L T j = 25 C R = 6.8 kω L V V 5 Data Sheet 2 Rev. 2.7,

13 Typical Performance Characteristics for V85: Output Voltage versus Temperature T j Current Consumption I q versus Input Voltage 9. AED38 3 AED325 V I q ma = 3.5 V 2 5 T j = 25 C R = 34 Ω L C 6 T j Low Voltage Behavior V 5 High Voltage Behavior 2 V AED972 I I 3.5 ma 3. AED38_ V Ι = T R j = 25 C L = 34 Ω T j = 25 C R = kω L V V 5 V Ι Data Sheet 3 Rev. 2.7,

14 Typical Performance Characteristics for V: Output Voltage versus Temperature T j Current Consumption I q versus Input Voltage.5 AED39 3 AED323 V I q ma 25. = 3.5 V 2 5 T j = 25 C R = 4 Ω L C 6 T j Low Voltage Behavior V 5 High Voltage Behavior 2 V AED324 I I 3.5 ma 3. AED379_ = T j = 25 C R = 4 Ω L T j = 25 C R = 2 kω L V V 5 Data Sheet 4 Rev. 2.7,

15 Package Outlines ± ± ) A ±. 7± ±.3 ) ± ±.2 ± ± ±.3 5 x.8 ±. 3.7 ±.3 C.5 ±. 3.9 ±.4 4 x.7.25 M A C 8.4 ±.4 ) Typical All metal surfaces tin plated, except area of cut. GPT964 Figure 6 PG-TO22-5- (Plastic Transistor Single 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-2). You can find all of our packages, sorts of packing and others in our Infineon Internet Page Products : SMD = Surface Mounted Device Dimensions in mm Data Sheet 5 Rev. 2.7,

16 ± ± ) A B ±. 7 ± ±.3 ) ± ±.2 C ±.5 3 ± ±. 5 x.8 ± x.7.25 M A B C ) Typical Metal surface min. X = 7.25, Y = 2.3 All metal surfaces tin plated, except area of cut. GPT965 Figure 7 PG-TO (Plastic Transistor Single 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-2). You can find all of our packages, sorts of packing and others in our Infineon Internet Page Products : SMD = Surface Mounted Device Dimensions in mm Data Sheet 6 Rev. 2.7,

17 (5) ±.2 ±.3 ± ) ) 7.55 A.27 ±. 4.7 ± ±.3 B x.8 ±. 4 x.7.5 ±..25 M A B 8 MAX.. B ) Typical Metal surface min. X = 7.25, Y = 6.9 All metal surfaces tin plated, except area of cut. GPT93 Figure 8 PG-TO (Plastic Transistor Single 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-2). You can find all of our packages, sorts of packing and others in our Infineon Internet Page Products : SMD = Surface Mounted Device Dimensions in mm Data Sheet 7 Rev. 2.7,

18 ± MAX. ±. (4.24) ).5 MAX. per side (5).8 ±.5.4 A 5 x.6 ±..25 M A B B MIN B ) Includes mold flashes on each side. All metal surfaces tin plated, except area of cut. GPT9527 Figure 9 PG-TO (Plastic Transistor Single 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-2). You can find all of our packages, sorts of packing and others in our Infineon Internet Page Products : SMD = Surface Mounted Device Dimensions in mm Data Sheet 8 Rev. 2.7,

19 Revision History Version Date Changes Rev Page 7: Corrected package outline drawing of PG-TO Rev Initial version of RoHS-compliant derivate of TLE 4276 Page : AEC certified statement added Page and Page 5: RoHS compliance statement and Green product feature added Page and Page 5: Package changed to RoHS compliant version Legal Disclaimer updated Rev Added ESD capability information in table Maximum Ratings. Data Sheet 9 Rev. 2.7,

20 Edition Published by Infineon Technologies AG 8726 Munich, Germany 27 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 ( 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.

21 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Infineon: TLE4276GVXT TLE4276GV5XT TLE4276 V TLE4276DV TLE4276SV TLE4276V TLE4276S V5