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UCC28950TPWRQ1 Datasheet(PDF) 8 Page - Texas Instruments |
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UCC28950TPWRQ1 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 48 page 1 2 3 4 5 6 7 8 9 10 11 12 UCC28950 DCM RSUM RT TMIN DELEF DELCD DELAB SS/EN COMP EA- EA+ VREF 24 23 22 21 20 19 18 17 16 15 14 13 ADELEF ADEL CS SYNC OUTF OUTE OUTD OUTC OUTB OUTA VDD GND UCC28950-Q1 SLUSAG4A – APRIL 2011 – REVISED JULY 2012 www.ti.com DEVICE INFORMATION Plastic 24-pin TSSOP (PW) PIN FUNCTIONS PIN I/O FUNCTION NUMBER NAME 1 VREF O 5-V, ±1.5%, 20-mA reference voltage output 2 EA+ I Error amplifier non-inverting input 3 EA– I Error amplifier inverting input 4 COMP I/O Error amplifier output and input to the PWM comparator 5 SS/EN I Soft-start programming, device enable and hiccup-mode protection circuit 6 DELAB I Dead-time delay programming between OUTA and OUTB 7 DELCD I Dead-time delay programming between OUTC and OUTD 8 DELEF I Delay-time programming between OUTA to OUTF, and OUTB to OUTE 9 TMIN I Minimum duty-cycle programming in burst mode 10 RT I Oscillator frequency set. Master- or slave-mode setting 11 RSUM I Slope compensation programming. Voltage-mode or peak-current-mode setting 12 DCM I DCM threshold setting Delay-time programming between primary-side and secondary-side switches, tAFSET 13 ADELEF I and tBESET. Dead-time programming for the primary switches over CS voltage range, tABSET and 14 ADEL I tCDSET. 15 CS I Current sense for cycle-by-cycle overcurrent protection and adaptive delay functions 16 SYNC I/O Synchronization out from master controller to input of slave controller 17 OUTF O 0.2-A sink/source synchronous switching output 18 OUTE O 0.2-A sink/source synchronous switching output 19 OUTD O 0.2-A sink/source primary switching output 20 OUTC O 0.2-A sink/source primary switching output 21 OUTB O 0.2-A sink/source primary switching output 22 OUTA O 0.2-A sink/source primary switching output 23 VDD I Bias supply input 24 GND Ground. All signals are referenced to this node. 8 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Link(s): UCC28950-Q1 |
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