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TPS40322 Datasheet(PDF) 23 Page - Texas Instruments |
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TPS40322 Datasheet(HTML) 23 Page - Texas Instruments |
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23 / 47 page  TPS40322 www.ti.com SLUSAF8E – JULY 2011 – REVISED JANUARY 2016 7.3.13 Connection of Unused Pins In some case, it is possible that some pins are not used. For example, if only channel 1 is used, then pins for channel 2 need to be properly connected as well. The unused pin connections are summarized in Table 2. Table 2. Unused Pin Connections PIN NAME CONNECTION BOOTx Floating COMPx Floating CSx– Connect to a voltage between 0 V and 5.6 V, short to CSx+ CSx+ Short to CSx- DIFFO Floating EN1/SS1 Connect to ground EN2/SS2/GSNS Connect to ground FBx Connect to ground HDRVx Floating ILIM1 Connect to ground through a 100-k Ω resistor ILIM2/VSNS Connect to ground through a 100-k Ω resistor LDRVx Floating PGx Connect to ground PHSET Connect to ground SWx Connect to ground SYNCx Floating 7.4 Device Functional Modes At dual-output configuration, EN1/SS1 and EN2/SS2/GSNS pins are used to enable or disable switching of channel 1 and channel 2, respectively. Floating the pin turns the channel on, pulling the pin low turns the channel off. At two-phase configuration, EN1/SS1 pin is used to enable and disable switching of both channels. Copyright © 2011–2016, Texas Instruments Incorporated Submit Documentation Feedback 23 Product Folder Links: TPS40322 |
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