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UC1843-DIE Scheda tecnica(PDF) 1 Page - Texas Instruments

Il numero della parte UC1843-DIE
Spiegazioni elettronici  CURRENT MODE PWM CONTROLLER
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
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UC1843-DIE Scheda tecnica(HTML) 1 Page - Texas Instruments

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UC1843-DIE
www.ti.com
SLUSBN6 – JULY 2013
CURRENT MODE PWM CONTROLLER
Check for Samples: UC1843-DIE
1
FEATURES
Optimized For Off-line and DC-to-DC
Enhanced Load Response Characteristics
Converters
Under-Voltage Lockout With Hysteresis
Low Start-Up Current
Double Pulse Suppression
Automatic Feed Forward Compensation
High Current Totem Pole Output
Pulse-by-Pulse Current Limiting
Low RO Error Amp
DESCRIPTION
The UC1843-DIE provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode
control schemes with a minimal external parts count. Internally implemented circuits include under-voltage
lockout featuring start up current, logic to insure latched operation, a PWM comparator which also provides
current limit control, and a totem pole output stage designed to source or sink high peak current. The output
stage, suitable for driving N-Channel MOSFETs, is low in the off state.
ORDERING INFORMATION(1)
PACKAGE
PRODUCT
PACKAGE
ORDERABLE PART NUMBER
PACKAGE QUANTITY
DESIGNATOR
UC1843TD1
154
UC1843
TD
Bare die in waffle pack(2)
UC1843TD2
10
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
Processing is per the Texas Instruments commercial production baseline and is in compliance with the Texas Instruments Quality
Control System in effect at the time of manufacture. Electrical screening consists of DC parametric and functional testing at room
temperature only. Unless otherwise specified by Texas Instruments AC performance and performance over temperature is not
warranted. Visual Inspection is performed in accordance with MIL-STD-883 Test Method 2010 Condition B at 75X minimum.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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