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LM5030 Datasheet(PDF) 3 Page - Texas Instruments |
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LM5030 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 32 page  1 2 3 4 5 6 7 8 9 10 VFB VCC OUT1 VIN COMP OUT2 GND CS RT SS LM5030 www.ti.com SNVS215D – APRIL 2003 – REVISED NOVEMBER 2015 5 Pin Configuration and Functions DGS, DPR Package 10-Pin VSSOP, WSON Top View Pin Functions PIN I/O DESCRIPTION APPLICATION INFORMATION NAME NO. There is an internal 5-k Ω pullup resistor on this pin. The COMP 3 O Output to the error amplifier error amplifier provides an active sink. Current sense input for current mode control and current limit sensing. Using separate dedicated comparators, if CS CS 8 I Current sense input exceeds 0.5 V, the outputs will go into cycle-by-cycle current limit. If CS exceeds 0.625 V the outputs will be disabled and a softstart commenced. GND 7 — Return Ground OUT1 5 O Output of the PWM controller Alternating PWM output gate driver OUT2 6 O Output of the PWM controller Alternating PWM output gate driver An external resistor sets the oscillator frequency. This pin Oscillator timing resistor pin and RT 9 I will also accept synchronization pulses from an external synchronization input oscillator. A 10-µA current source and an external capacitor set the softstart timing length. The controller will enter a low power SS 10 I Dual purpose soft start and shutdown pin state if the SS pin is pulled below the typical shutdown threshold of 0.45 V. VIN 1 I Source input voltage Input to start-up regulator. Input range 14 to 100 V. The non-inverting input is internally connected to a 1.25-V VFB 2 I Inverting input to the error amplifier reference. Output from the internal high-voltage series If an auxiliary winding raises the voltage on this pin above VCC 4 I/O pass regulator. The regulation setpoint is the regulation setpoint, the internal series pass regulator 7.7 V. will shutdown, reducing the IC power dissipation. The exposed die attach pad on the WSON package should be connected to a PCB thermal pad at ground potential. WSON SUB — Die substrate For additional information on using TI's No Pull Back DAP WSON package, refer to WSON Application Note AN-1187 (SNOA401). Copyright © 2003–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM5030 |
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