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UC1843AVTD2 Datasheet

Download or read online TI (Texas Instruments) UC1843AVTD2 Current-Mode PWM Controller, UC1843A-DIE 0- pdf datasheet.



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CURRENT-MODE PWM CONTROLLER
FEATURES
1
Rad-Tolerant: 30 kRad (Si) TID
Optimized for Offline and DC-to-DC Converters
Low Start-Up Current
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
(1) Radiation tolerance is a typical value based upon initial device
qualification with dose rate = 10 mrad/sec. Radiation Lot
Acceptance Testing is available - contact factory for details.
DESCRIPTION
The UC1843A-DIE is a pin for pin compatible improved version of the UC1843-DIE. Providing the necessary
features to control current-mode switched-mode power supplies.
PACKAGE
PRODUCT
DESIGNATOR
UC1843A
TD
(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 space 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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Check for Samples:
UC1843A-DIE
(1)
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Undervoltage Lockout With Hysteresis
Double-Pulse Suppression
High-Current Totem-Pole Output
Internally Trimmed Bandgap Reference
Low R
O
ORDERING INFORMATION
PACKAGE
ORDERABLE PART NUMBER
(2)
Bare die in waffle pack
UC1843A-DIE
SLUSBN9 – JULY 2013
Error Amplifier
(1)
PACKAGE QUANTITY
UC1843AVTD1
100
UC1843AVTD2
10
Copyright © 2013, Texas Instruments Incorporated

Summary of Contents

Page 1

... Double-Pulse Suppression High-Current Totem-Pole Output Internally Trimmed Bandgap Reference Low R O ORDERING INFORMATION PACKAGE ORDERABLE PART NUMBER (2) Bare die in waffle pack UC1843A-DIE SLUSBN9 JULY 2013 Error Amplifier (1) PACKAGE QUANTITY UC1843AVTD1 100 UC1843AVTD2 10 Copyright © 2013, Texas Instruments Incorporated ...

Page 2

... UC1843A-DIE SLUSBN9 JULY 2013 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications ...

Page 3

... Table 1. Bond Pad Coordinates in Microns DESCRIPTION PAD NUMBER Comp VFB ISENSE RT/CT N/C N/C N/C N/C N/C N/C Gnd Gnd Output VCC VCC VREF N/C N/C N/C N/C N/C N/C Copyright © 2013, Texas Instruments Incorporated X MIN Y MIN 1 43.18 2108.2 2 27.94 1920.24 3 33.02 1125.22 4 86.36 599.44 5 81.28 121.92 6 246.38 121.92 7 411.48 124.46 8 574.04 124.46 9 741.68 10 906.78 11 1348.74 579 ...

Page 4

... Orderable Device Status Package Type Package (1) UC1843AVTD1 PREVIEW UC1843AVTD2 PREVIEW (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. ...

Page 5

... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “ ...

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