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UCC28231PWR Datasheet(PDF) 2 Page - Texas Instruments |
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UCC28231PWR Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 46 page  TYPICAL APPLICATION DIAGRAMS Vin 36 Vto60V + _ CT Vout 7 Vto12 V 400W + _ Vbias Vbias Vcc =5 Vor 3.3V Interface with System HI VDD VSS LI HB HO HS LO HI VDD VSS LI HB HO HS LO UCC 27200 UCC 27200 Bias Power Supply Vbias Housekeeping Micro Controller GND O1_D VREF VDD 5V/3.3V LDO EN UVLO Comp. 6.3 Vrise 5.7 Vfall VDD VDD RT CS SS Vin OS Thermal Shutdown Is R1 R2 O2_ DIN O2_D O1_ DIN 8 10 11 9 7 1 2 6 4 12 SoftStart & HiccupCurrent LimitCircuit Logic Block VDD Reference Generator ShortCircuit Shutdown Oscillator & StartUp Frequency Control Off Time Control Circuit Cycle - by - CycleCurrent Limit CLK 3 OST R3 5 Vin 36Vto60V + _ CT Vout 7Vto12V 200W + _ Vbias Houskeeping Micro- Controller Vcc=5Vor3.3V Interface with System HI VDD VSS LI HB HO HS LO UCC 27200 Bias Power Supply Vbias UCC28230/1 INA 2 4 7 5 6 3 VDD GND INB UCC27324 OUTA OUTB Vbias GND O1_D VREF V DD 5V/3.3V LDO EN UVLO Comp. 6.3 Vrise 5.7 Vfall VDD VDD RT CS SS Vin OS Thermal Shutdown Is R1 R2 O2_ DIN O2_D O1_ DIN 8 10 11 9 7 1 2 6 4 12 SoftStart & HiccupCurrent LimitCircuit Logic Block VDD Reference Generator ShortCircuit Shutdown Oscillator & StartUp Frequency Control Off Time Control Circuit Cycle - by - CycleCurrent Limit CLK 3 OST R3 5 UCC28230 UCC28231 SLUS814A – FEBRUARY 2008 – REVISED JUNE 2008 ................................................................................................................................................... www.ti.com Figure 1. Full-Bridge Bus Converter Figure 2. Half-Bridge Bus Converter with Control-Driven Synchronous Rectifier 2 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): UCC28230 UCC28231 |
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