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+ GND SENSE REF CT RESET 8 7 2 1 3 5 6 4 U1 U2 U3 + UVLOProg Inhibit/ GND UVLOProg Inhibit/ GND AutoTrack TurboTrans TurboTrans R TT2 R TT1 AutoTrack Smart Sync +Sense VO −Sense VOAdj VI PTH08T210W VO1=3.3V C 1 O C O2 RSET1 1.62kW VI =12V V CC RESET RESIN TL7712A RRST 10kW CT 2.2 F m CREF 0.1 F m C 1 I +Sense VO −Sense VOAdj VI C 2 I VO2=1.8V RSET2 4.75kW PTH08T220W t − Time − 20ms/div VTRK (1V/div) VO1(1V/div) VO2(1V/div) t − Time − 400 s/div m VTRK (1V/div) VO1(1V/div) VO2(1V/div) www.ti.com................................................................................................................................................... SLTS252K – NOVEMBER 2005 – REVISED JUNE 2009 Figure 29. Sequenced Power Up and Power Down Using Auto-Track Figure 30. Simultaneous Power Up Figure 31. Simultaneous Power Down With Auto-Track Control With Auto-Track Control Copyright © 2005–2009, Texas Instruments Incorporated 29 Product Folder Link(s): PTH08T220W PTH08T221W |
