UC3853N UNITRODE, UC3853N Datasheet
UC3853N
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UC3853N Summary of contents
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High Power Factor Preregulator FEATURES Complete 8-pin Power Factor Solution Reduced External Components RMS Line Voltage Compensation Precision Multiplier/Squarer/Divider Internal 75kHz Synchronizable Oscillator Average Current Mode PWM Control Overvoltage Protection Comparator High Current, Clamped Gate Driver BLOCK DIAGRAM 11/97 DESCRIPTION ...
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ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC 40V Output Drive Current, Continuous ...
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ELECTRICAL CHARACTERISTICS (continued) PARAMETER Multiplier Section Output Current – IAC Limited Output Current – Zero Output Current – Power Limited Output Current Multiplier Gain Constant Oscillator Section Oscillator Initial Frequency Oscillator Frequency Synchronization Frequency Range Synchronization Pulse Amplitude Output Driver ...
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PIN DESCRIPTIONS FB: Voltage Amplifier Inverting Input, Overvoltage Comparator Input, Sync Input. This pin serves three functions. FB accepts a fraction of the power factor corrected output voltage through a voltage divider, and is nominally regulated to 3V. FB voltages ...
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... UC3853 TYPICAL APPLICATION Note: the application circuit shown is a 100W, 75KHz design. Additional application information can be found in Application Note U–159 and Design Note DN–78. UNITRODE CORPORATION 7 CONTINENTAL BLVD. • MERRIMACK, NH 03054 TEL. (603) 424-2410 • FAX (603) 424-3460 5 UC1853 UC2853 UC3853 ...
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... UC3853DTR ACTIVE UC3853DTRG4 ACTIVE UC3853N ACTIVE UC3853NG4 ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design ...
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold Customer on an annual basis. PACKAGE OPTION ADDENDUM Addendum-Page 2 ...
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TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing UC2853DTR SOIC D UC3853DTR SOIC D PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 8 2500 330.0 12.4 6.4 8 ...
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Device Package Type UC2853DTR SOIC UC3853DTR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 D 8 2500 Pack Materials-Page 2 29-Jul-2008 Width (mm) Height (mm) 346.0 346.0 29.0 346.0 346.0 ...
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Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...