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TPS54283 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS54283 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 55 page www.ti.com BLOCK DIAGRAM 7 FB1 + Soft Start 1 C COMP + S Q Q R R + Current Comparator BP f(I DRAIN1 ) + DC(ofst) 2 1 3 Anti-Cross Conduction 1.2 MHz Oscilator Divide by 2/4 Ramp Gen 1 Ramp Gen 2 CLK1 CLK2 BP CLK1 Weak Pull-Down MOSFET 5 EN1 6 EN2 6 mA 6 mA VDD2 Internal Control 10 SEQ 150 kW 150 kW Output Undervoltage Detect BP FB1 FB2 CLK1 4 GND 8 FB2 + Soft Start 2 C COMP + S Q Q R R + Current Comparator BP 13 14 12 Anti-Cross Conduction BP CLK2 Weak Pull-Down MOSFET 11 BP 9 ILIM2 150 kW 150 kW BP CLK2 4 GND Level Select 5.25-V Regulator References BOOT1 PVDD1 SW1 BOOT2 PVDD2 SW2 f(I DRAIN2 ) + DC(ofst) 0.8 V REF I MAX2 (Set to one of two limits) f(I DRAIN1 ) f(I MAX1 ) Overcurrent Comp f(I SLOPE1 ) Level Shift Level Shift f(I DRAIN2 ) f(I MAX2 ) f(I SLOPE2 ) FET Switch TSD PVDD2 f(I SLOPE1 ) f(I SLOPE2 ) SD1 SD2 UVLO 0.8 V REF SD2 0.8 V REF SD1 UDG-07007 Overcurrent Comp R COMP R COMP TPS54283,, TPS54286 SLUS749C – JULY 2007 – REVISED OCTOBER 2007 Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): TPS54283 TPS54286 |
Número de pieza similar - TPS54283_15 |
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Descripción similar - TPS54283_15 |
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