TIL5942, TIL5942A CURRENT-MODE-PWM CONTROLLER WITH OPTOISOLATED VOLTAGE REFERENCE AND ERROR AMPLIFIER

SOES040 - OCTOBER 1997

features

• TL1431, Optocoupler, and Advanced Current-Mode-PWM in a 16-Pin DIP
• LinBiCMOS^TM Current-Mode-PWM Operates at Frequencies up to 1 MHz
• 100-uA Maximum Start-up Current
• 2-A, 30-ns MOSFET Drive Output
• TL1431 Voltage Reference/Feedback Amplifier
• 7500-V Peak Withstand Voltage
• Available With Gull Wing VDE Lead Forms
• -40°C to 100°C Free-Air Operating Temperature Range
• Safety Regulatory Approvals Pending
  • UL...File Number E65085
  • FIMKO, SEMKO, NEMKO, DEMKO
    • - EN60065/IEC 65
    • - EN60950/IEC 950
  • VDE 0884, Level 4 (6000-V Insulation)

    LinBiCMOS is a trademark of Texas Instruments Incorporated.

description

The TIL5942 and TIL5942A consist of an advanced current-mode-PWM controller and a TL1431 adjustable precision shunt regulator, incorporated in a single package. The controller provides a photodetector, an improved MOSFET drive output, and an LED for isolation. The TL1431 is configured as a precision reference/error amplifier. Using the TIL5942 or the TIL5942A, the power-supply designer can implement the controller for an isolated dc/dc converter or off-line switching power supply, with one IC and a few passive components. The TIL5942 standard version has a reference voltage tolerance of 0.8% and the TIL5942A has a reference voltage tolerance of 0.4%

These controllers are available in a 16-pin PDIP with a lead form for through-hole, or gull-wing lead form for surface-mount applications. These devices operate over a -40°C to 100°C junction temperature range.

End equipment applications for the TIL5942 and the TIL5942A include isolated ac-to-dc power supplies and dc/dc converters.

View more information about generic part numbers:TIL5942, TIL5942A

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.

(c) Copyright 1998 Texas Instruments Incorporated. All rights reserved.
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