Texas Instruments TPS6204xEVM User Manual Download Page 12 | Manualshive

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Enable (EN) Jumper

2-2

2.1

Enable (EN) Jumper

This jumper is used to enable the device. Connecting the EN pin to ENABLE
enables the part. Connecting the EN pin to DISABLE disables the device.

2.2

Mode Selection Jumper

This jumper is used to choose between PWM and PFM/PWM modes of
operation. Setting the jumper across FIXED FREQ forces the device into the
low noise fixed frequency pulse width modulation (PWM) mode. Setting the
jumper across PWR SAVE enables the power save mode where the device
enters a pulse frequency modulation mode (PFM) at light to medium load
currents, which reduces quiescent current and switching frequency to a
minimum to achieve highest efficiency over the entire load current range.

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Summary of Contents for TPS6204xEVM

Page 1: ... July 2003 PMP Portable Power User s Guide SLVU089 ...

Page 2: ...titute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction ...

Page 3: ... handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR A...

Page 4: ...ut If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than xxx C The EVM is designed to operate properly with certain components above xxx C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching tra...

Page 5: ...struments TPS6204x data sheet SLVS463 FCC Warning This equipment is intended for use in a laboratory test environment only It gen erates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interference Operatio...

Page 6: ...iv ...

Page 7: ...nd Schematic 3 1 3 1 SLVP229EVM Schematic 3 2 3 2 TPS62040 and TPS62046 EVMs SLVP229 Bill of Materials 3 3 3 3 PCB Layout of the TPS62040EVM and TPS62046EVM 3 4 3 1 TPS62040EVM and TPS62046EVM SLVP229 Schematic 3 2 3 2 Component Placement 3 4 3 3 Top Layer 3 4 3 4 Bottom Layer 3 4 1 1 EVM Ordering Information 1 2 3 1 TPS62040EVM and TPS62046EVM SLVP229 Bill of Materials 3 3 ...

Page 8: ...vi ...

Page 9: ...ustable version set to 1 8 V and the TPS62046 3 3 V fixed version The TPS62040EVM is easily set up to provide any output voltage between 0 7 V to 6 V or VI by adjusting the external resistor divider Refer to the data sheet SLVS463 for various fixed voltage options available for the TPS6204x The TPS6204x has an input voltage range between 2 5 V and 6 V with an output current up to 1 2 A Any version...

Page 10: ...nformation 1 2 1 1 EVM Ordering Information Table 1 1 EVM Ordering Information EVM Number Description TPS62040EVM 229 Adjustable output voltage version set to 1 8 V TPS62046EVM 229 3 3 V fixed output voltage version ...

Page 11: ...r accurate output voltage and input voltage measurements it is important to measure the voltage on the input and output voltage terminals with a voltmeter connected directly to the input voltage or output voltage terminals This eliminates any measurement errors related to voltage drops along the input and output terminal wires connected to the power supply or load Topic Page 2 1 Enable EN Jumper 2...

Page 12: ... PWM and PFM PWM modes of operation Setting the jumper across FIXED FREQ forces the device into the low noise fixed frequency pulse width modulation PWM mode Setting the jumper across PWR SAVE enables the power save mode where the device enters a pulse frequency modulation mode PFM at light to medium load currents which reduces quiescent current and switching frequency to a minimum to achieve high...

Page 13: ... step in the power supply design process The following figures show the layout for the adjustable and fixed output voltage EVMs A bill of materials and a schematic are provided Topic Page 3 1 SLVP229 EVM Schematic 3 2 3 2 BIll of Materials 3 3 3 3 PCB Layout of the TPS62040EVM and TPS62046EVM 3 4 Chapter 3 ...

Page 14: ... Table 3 1 More details about the design and component selection for the dc dc converter are found in the data sheet Figure 3 1 TPS62040EVM and TPS62046EVM SLVP229 Schematic J1 FB 1 2 3 4 5 10 9 8 7 6 11 JP2 JP1 1 1 2 1 2 J1 VIN GND C3 22 µF EN VIN PWP AGND VIN PGND PGND SW SW MOD U1 TPS6204xDGQ L1 6 2 µH R1 R2 C4 22 µF C1 C2 J3 1 2 J4 1 2 VOUT GND See BOM for Values 1 ...

Page 15: ... V C0G 5 805 Murata GRM2165C1H121JZ01 Open C2 Capacitor ceramic xxx µF vv V 805 4 4 J1 J4 Header 2 pin 100 mil spacing 36 pin strip 0 100 2 Sullins PTC36SAAN 2 2 JP1 JP2 Header 3 pin 100 mil spacing 36 pin strip 0 100 3 Sullins PTC36SAAN 1 1 L1 Inductor SM toroid 6 2 µH 1 8 A 45 mΩ 0 224 Sumida CDRH5D28 6R2 1 R1 Resistor chip 475 kΩ 1 10 W 1 805 Std Std 1 R1 Resistor chip 0 Ω 1 10 W 5 805 Std Std ...

Page 16: ...2046EVM 3 4 3 3 PCB Layout of the TPS62040EVM and TPS62046EVM Figure 3 2 Figure 3 3 and Figure 3 4 show the layout for the adjustable and fixed output voltage EVMs Figure 3 2 Component Placement Figure 3 3 Top Layer Figure 3 4 Bottom Layer ...

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