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TPS82690 Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS82690 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 13 page JP2 PWM MODE PSM JP1 ON EN OFF GND VIN VOUT GND S- + S+ S+ - S- TPS826xxEVM-646 DC Power Supply Load Oscilloscope J7 - + www.ti.com Test Configuration 4 Test Configuration 4.1 Hardware Setup Figure 2 illustrates a typical hardware test configuration. Figure 2. Hardware Board Connection 4.2 Procedure Follow these procedures when configuring the EVM for testing. CAUTION Many of the components on the TPS826xxEVM-646 are susceptible to damage by electrostatic discharge (ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handling the EVM, including the use of a grounded wrist strap, bootstraps, or mats at an approved ESD workstation. An electrostatic smock and safety glasses should also be worn. 1. Work at an ESD workstation. Make sure that any wrist straps, bootstraps, or mats are connected and reference the user to earth ground before power is applied to the EVM. Electrostatic smocks and safety glasses should also be worn. 2. Connect a dc power supply between J1 and J2 on the TPS826xxEVM. Note that the input voltage should range from 2.3 V to 4.8 V. Keep the wires from the input power supply to EVM as short as possible and twisted. 3. Connect a dc voltmeter or oscilloscope to the output sense connection of the EVM. 4. A load can be connected between J4 and J6 on the TPS826xxEVM. 5. To enable the converter, connect the shorting bar on JP1 between ENABLE and ON on the TPS826xxEVM. 6. The TPS826xxEVM has a feature that allows users to switch between Power-Save Mode under light loads and forced PWM mode, with jumper JP2. 5 SLVU383D – October 2010 – Revised November 2011 TPS826xxEVM Submit Documentation Feedback Copyright © 2010–2011, Texas Instruments Incorporated |
Numéro de pièce similaire - TPS82690 |
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