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UCC28250RGPT Datasheet(PDF) 10 Page - Texas Instruments |
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UCC28250RGPT Datasheet(HTML) 10 Page - Texas Instruments |
10 / 48 page UCC28250 SLUSA29A – APRIL 2010 – REVISED JUNE 2010 www.ti.com TERMINAL FUNCTIONS QFN-20 PW-20 NAME I/O FUNCTION 5 12 VDD I Bias supply input. 20 7 VREF O 3.3-V reference output. 18 5 EN I Device enable and disable. 15 2 RT I Oscillator frequency set or synchronous clock input. 12 19 SP I Synchronous rectifier off to primary on dead-time set . 11 18 PS I Primary off to synchronous rectifier on dead-time set . PWM ramp input (for voltage mode control) or current sense input (for current 16 3 RAMP/CS I mode control). 1 8 REF/EA+ I Error amplifier non-inverting input. 2 9 FB/EA- I Error amplifier inverting input. 3 10 COMP I/O Error amplifier output. 14 1 VSENSE I Output voltage sensing for pre-bias control. 13 20 SS I/O Soft-start programming. 17 4 ILIM I Current sense for cycle-by-cycle over-current protection. 10 17 HICC I Cycle-by-cycle current limit time delay and Hiccup time setting. 19 6 OVP/OTP I Over voltage and over temperature protection pin. 9 16 OUTA O 0.2-A sink/source primary switching output. 8 15 OUTB O 0.2-A sink/source primary switching output. 7 14 SRA O 0.2-A sink/source synchronous rectifier output. 6 13 SRB O 0.2-A sink/source synchronous rectifier output. 4 11 GND I Ground. 10 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): UCC28250 |
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