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TPS23750EVM-107 Fiches technique(PDF) 9 Page - Texas Instruments |
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TPS23750EVM-107 Fiches technique(HTML) 9 Page - Texas Instruments |
9 / 12 page HPA107 + J1 J3 EthernetCable J2 J4 + V OUT − PSE or PowerSupply R LOAD Optional PowerSource Data toPhy + − AUX − www.ti.com Using the EVM 4 Using the EVM 4.1 Setup Figure 5 shows a typical EVM setup. The user is encouraged to read the TPS23750 data sheet before using the EVM. Figure 5. Typical Setup 4.2 Interface Table 2 describes the EVM interface. Table 3. EVM I/O Interfaces Reference Designator Description J1 An Ethernet cable connects this port to the power-sourcing equipment (PSE). This port carries both data and power. J2 This port carries only data. Do not apply power to this port. J3 This terminal block accepts auxiliary power from a source like a wall adapter. J4 Output voltage D6 This LED is lit if the DC/DC converter output is on. D7 This LED is lit if the PD FET switch is on. 4.3 Making Measurements Stray magnetic fields from inductor L2 can couple noise into measurements. This noise may be noticeable when measuring a low-level signal like output ripple voltage. Keep the ground lead of the oscilloscope probe short and away from L2 to reduce the amount of noise pick-up. Ground loops can be created if test equipment is connected to the EVM. Avoid ground loops by floating the test equipment and/or the power supply to the EVM. 4.4 EVM Operation The TPS23750 data sheet describes the electrical operation and function of the various components in the buck converter powered device. The circuit provided in the data sheet is similar to the circuit in this EVM. 9 SLVU136A – July 2005 – Revised January 2011 TPS23750 Buck-Converter Evaluation Board – HPA107 Submit Documentation Feedback © 2005–2011, Texas Instruments Incorporated |
Numéro de pièce similaire - TPS23750EVM-107 |
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Description similaire - TPS23750EVM-107 |
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