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TPS2306 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS2306 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 29 page TPS2306 DUAL SEQUENCING HOT SWAP POWER MANAGER SLVS368 − APRIL 2001 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION fault output logic The FAULT signal is an open-drain output which is high-impedance under any conditions which cause the outputs to be switched off, including an overcurrent or fault time-out on either supply, removal of the external enable signal with subsequent GATEx ramp-down, or an undervoltage condition on either supply input. Refer to the Application Information section for additional details on using this output. The circuit diagram of Figure 2 shows a dual hot-swap application in which the TPS2306 is used to hot swap and sequence 5.0-V and 3.3-V supplies. The total input bulk and filter capacitance associated with the +5.0V load is represented in the diagram by CLOAD1. CLOAD2 represents the load capacitance on the 3.3 V supply. The nominal operating currents of each load are represented by the IL1 and IL2 blocks. UDG−01002 IL2 IMAX1 1 UP1 2 ENBL 3 IREF 4 CT 5 GND 6 UP2 7 IMAX2 8 VCC/CS1 16 DOWN1 15 GATE1 14 FAULT 13 CPUMP 12 GATE2 11 DOWN2 10 CS2 9 C2 0.1 µF TPS2306 D2 C1 0.1 µF D1 R1B 3.57 k Ω R1A 10 k Ω Q1 C3 0.01 µF Q2 R2A 10 k Ω R2B 12.1 k Ω 3.3 V OUT CLOAD2 LOAD 2 IL1 CLOAD1 LOAD 1 5V_OUT VCC R SNS1 0.04 Ω CSS1 UP1 RIMAX1 365 Ω R1 10 k Ω R IMAX2 274 Ω CSS2 0.12 µF RSNS2 0.01Ω RUP2 1 k Ω CT 0.1 µF RREF 15 kΩ 3.3V_IN 5V_IN 0.33 µ F UP1 Figure 2. TPS2306 in a 5-V/3.3-V Dual Hot Swap Application |
Similar Part No. - TPS2306_10 |
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Similar Description - TPS2306_10 |
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