UC1843A-DIE
www.ti.com SLUSBN9 – JULY 2013 CURRENT-MODE PWM CONTROLLER
Check for Samples: UC1843A-DIE FEATURES 1 (1) Rad-Tolerant: 30 kRad (Si) TID (1)
Optimized for Offline and DC-to-DC Converters
Low Start-Up Current
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
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. 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 RO Error Amplifier 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.
ORDERING INFORMATION (1) (1)
(2) PRODUCT PACKAGE
DESIGNATOR PACKAGE UC1843A TD Bare die in waffle pack (2) ORDERABLE PART NUMBER PACKAGE QUANTITY UC1843AVTD1 100 UC1843AVTD2 10 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.
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