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UC1903J883B 数据表(PDF) 2 Page - Texas Instruments |
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UC1903J883B 数据表(HTML) 2 Page - Texas Instruments |
2 / 16 page DESCRIPTION (CONT.) CONNECTION DIAGRAMS 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 +VIN V (2.5V) REF GND WINDOW ADJUST SENSE4 INVERT INPUT SENSE4 G.P.OP-AMP INV. LINE/SWITCHERSENSE POWEROK UVDELAY UVFAULT SENSE3 SENSE2 SENSE1 G.P.OP-AMP N.I. G.P.OP-AMP OUT OVFAULT OVDELAY DIL-18,SOIC-18 JorN,DWPACKAGE (TOP VIEW) 3 2 1 20 19 18 17 16 15 14 9 11 12 13 10 4 5 6 7 8 WINDOW ADJUST GND NC SENSE4INVERT INPUT SENSE4 UVFAULT UVDELAY LINE/SWITCHER SENSE POWEROK G.P.OP-AMP OUT PLCC-20,LCC-20 Q,L PACKAGE (TOP VIEW) ABSOLUTE MAXIMUM RATINGS (1) UC1903 UC2903 UC3903 SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008 ........................................................................................................................................ www.ti.com An additional, uncommitted, general purpose op-amp is also included. This op-amp, capable of sourcing 20 mA of output current, can be used for a number of auxiliary functions including the sensing and amplification of a feedback error signal when the 2.5-V output is used as a system reference. These parts operate over an 8-V to 40-V input supply range and require a typical stand-by current of only 7 mA. over operating free-air temperature range (unless otherwise noted) VALUE UNIT +VIN Supply Voltage +40 V Open Collector Output Voltages. +40 V Open Collector Output Currents. 50 mA Sense 1-4 Input Voltages –0.3 to +20 V Line/Switcher Sense Input Voltage –0.3 to +40 V Op-Amp and Inverter Input Voltages –0.3 to +40 V Op-Amp and Inverter Output Currents . –40 mA Window Adjust Voltage. 0.0 to +10 V Delay Pin Voltages 0.0 to +5 V Reference Output Current –40 mA Power Dissipation at TA = 25°C (1) 1000 mW Power Dissipation at TC = 25°C (1) 2000 mW Operating Junction Temperature –55 to +150 °C Storage Temperature –65 to +150 C Lead Temperature (Soldering, 10 Seconds) 300 °C (1) Voltages are referenced to ground (Pin 3). Currents are positive into, negative out of, the specified terminals. Consult Packaging Section of Databook for thermal limitations and considerations of package. 2 Submit Documentation Feedback Copyright © 1999–2008, Texas Instruments Incorporated Product Folder Link(s): UC1903 UC2903 UC3903 |
类似零件编号 - UC1903J883B |
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类似说明 - UC1903J883B |
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