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TPS54386-Q1 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS54386-Q1 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 50 page 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 three 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-07124 Overcurrent Comp R COMP R COMP TPS54386-Q1 www.ti.com SLUSAZ9A – MARCH 2012 – REVISED MARCH 2012 BLOCK DIAGRAM Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): TPS54386-Q1 |
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