ifx91041 Infineon Technologies Corporation, ifx91041 Datasheet
ifx91041
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ifx91041 Summary of contents
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... 1.8A DC/DC Step-Down Voltage Regulator 5.0V, 3.3V or Adjustable Output Voltage IFX91041EJV50 IFX91041EJV33 IFX91041EJV Rev. 1.0, 2009-05- ...
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... Green Product (RoHS compliant) Description The IFX91041 series are monolithic integrated circuits that provide all active functions for a step-down (buck) switching voltage regulator, capable of driving up to 1.8A load current with excellent line and load regulation. These devices are suited for use under the harsh automotive electronics environmental conditions featuring protection functions such as current limitation and overtemperature shutdown ...
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... Block Diagram COMP SYNC Figure 1 Block Diagram Data Sheet EN 7 Enable Charge Pump Over Temperature Shutdown Feedforward Buck 3 Converter Oscillator 1 Bandgap Soft start ramp Reference generator IFX91041 2 GND 3 IFX91041 Block Diagram VS 8 BDS 5 BUO Rev. 1.0, 2009-05-04 ...
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... Compensation Input. Frequency compensation for regulation loop stability. Connect to compensation RC-network Feedback Input. For the adjustable output voltage versions (IFX91041EJV) connect via voltage divider to output capacitor. For the fixed voltage version (IFX91041EJV50, IFX91041EJV33) connect this pin directly to the output capacitor. 5 BDS Buck Driver Supply Input ...
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... V V -2.0 + 0.3 BUO -40 150 j T -55 150 stg ESD t > 10s) may affect device reliability 5 IFX91041 Unit Conditions V – < 10s V – < 10s V IFX91041EJV50; IFX91041EJV33 V IFX91041EJV – C – HBM Rev. 1.0, 2009-05-04 ...
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... BU1 T -40 150 j 12” for loop compensation requirements. Symbol Limit Values Min. Typ. Max. R – – 12 thJC R – 52 – thJA 6 IFX91041 General Product Characteristics Unit Conditions V – V IFX91041EJV µH – µF – 1) – C – Unit Conditions K/W – 2) K/W Rev. 1.0, 2009-05-04 ...
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... ICC=0mA, high input voltage) a pulse skipping operation mode is implemented. Pulse skipping is also used for operation with low supply voltages, related to high duty cycles >92% In case of a lost connection to the pin internal pull-up current prevents from a uncontrolled rise of the output voltage (version IFX91041EJV only). COMP Error FB Amp ...
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... CC IFX91041EJV VEN connected 12V S I 1mA < < 1. IFX91041EJV50 1) IFX91041EJV33 mA mA IFX91041EJV IFX91041EJV IFX91041EJV 1) V =0.6V CC µA IFX91041EJV V = 0.6V FB µA IFX91041EJV50, IFX91041EJV33 m tested at 300 – Bootstrap voltage decreasing 12V; S ...
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... BDS V BUO D – – max t 350 500 start V 3.75 – S,off V – – S,on V 150 – S,hyst Range” 9 IFX91041 Buck Regulator Unit Conditions Max increasing BDS BUO 3) 100 % V 750 µs rising from 95% of FB,nom V – V decreasing ...
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... EN,lo V – – 0.8 EN, 200 400 EN,HY I – – 30 EN,hi I – 0.1 1 EN,lo T 160 175 190 j,sd T – 15 – j,sd_hyst 10 IFX91041 Module Enable and Thermal Shutdown Unit Conditions V µA = 0.8V < 105°C; = 16V 5.0V; = 0mA 16V connected 5.0V; = 1.8A ...
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... SYNC input internal pull-down 1) Synchronization of PWM-on signal to falling edge. Data Sheet Symbol Limit Values Min. Typ. Max. f 330 370 420 osc f 200 530 sync V 2.9 SYNC,hi V 0.8 SYNC,lo R 0.60 1.0 1.4 SYNC 11 IFX91041 Module Oscillator Unit Conditions V kHz = 0V SYNC kHz SYNC Rev. 1.0, 2009-05-04 ...
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... IC. Data Sheet C BU1 order to maintain stability also for tantalum ESR COMP2 BU BU COMP COMP 3 IFX91041 C COMP 2 R COMP 12 IFX91041 Application Information C COMP C at pin COMP to GND is COMP2 , Application _C-COMP2.vsd GND Rev. 1.0, 2009-05-04 = 22nF ...
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... IFX91041EJV50, IFX91041EJV33 with fixed Output Voltage Batt Ignition Key Terminal 15 7 Enable Over Temperature Shutdown Feedforward COMP 3 Converter C COMP SYNC Oscillator 1 R COMP Bandgap Reference Figure 5 Application Diagram IFX91041EJV50 or IFX91041EJV33 Note: This is a very simplified example of an application circuit. The function must be verified in the real application ...
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... Note: This is a very simplified example of an application circuit. The function must be verified in the real application The output voltage of the IFX91041EJV can be programmed by a voltage divider connected to the feedback pin FB. The divider cross current should be 300 µA at minimum, therefore the maximum For the desired output voltage level Add a 0 ...
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... For further package information, please visit our website: http://www.infineon.com/packages. Data Sheet C 0.08 C 0˚...8˚ Seating Plane 0 0 ±0.1 16 Package Outlines 0.35 x 45˚ 1) 3.9 ±0.1 0 8˚ MAX. 0˚...8˚ 6 ±0.2 0 Bottom View 3 ±0 GPS01206 Dimensions in mm Rev. 1.0, 2009-05-04 IFX91041 ...
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... Revision History Rev Rev.1.0 2009-05-04 Final data sheet Data Sheet 17 IFX91041 Revision History Rev. 1.0, 2009-05-04 ...
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Edition 2009-05-04 Published by Infineon Technologies AG 81726 Munich, Germany 2009 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 ...