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UCC2541RHBTG4 Datasheet(PDF) 1 Page - Texas Instruments |
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UCC2541RHBTG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page UCC2541 SLUS621A − AUGUST 2004 − SEPTEMBER 2005 HIGHEFFICIENCY SYNCHRONOUS BUCK PWM CONTROLLER 1 www.ti.com FEATURES D On-Chip Predictive Gate Drivet for High-Efficiency Synchronous Buck Operation D Dual ±3-A TrueDrivet Outputs D On-Board Programmable Oscillator with 1-MHz Frequency Operation D TR Input for Sequencing Operation D Overcurrent Protection using a Parallel Average Current Mode Control Loop D 3 Modes to Support 2.7-V to 35-V Input Bias D Reverse Current Protection for Output Stage D User Programmable Shutdown Using SS Pin D ±1.0% Initial Tolerance Bandgap Reference D High Bandwidth Error Amplifiers D Thermally Enhanced HTSSOP 20-Pin PowerPAD t Package and QFN−32 Pin D Synchronization Input D Supports Pre-Bias Applications SIMPLIFIED APPLICATION DIAGRAM APPLICATIONS D High Efficiency Non-Isolated Converters Requiring Advanced Features such as Pre-Bias Support and Tracking Capability D Point-of-Load Modules for Servers, Telecom, and Data communication Equipments D Good for Input Voltages of 3.3 V, 5.0 V, 12.0 V, or Intermediate Bus Voltages DESCRIPTION The UCC2541 is a synchronous buck PWM controller for high current and low output voltage applications. For higher efficiency, it incorporates the Predictive Gate Drive t technology that virtually eliminates body diode conduction losses in synchronous rectifiers. VIN VOUT RSET REF G2C SYNCIN GND RAMP VEA− CEA− SWS BST VDD SW G1 PGND G2 VDRV 1 2 3 4 5 6 7 8 20 19 18 17 16 15 14 13 UCC2541 COMP TR G2S SS 9 10 12 11 TR Input PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 2004, Texas Instruments Incorporated Predictive Gate Drive , TrueDrive and PowerPAD are trademarks of Texas Instruments Incorporated. |
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