background image

2-1

Evaluation With the TPS6101xEVM-157

 

Evaluation With the TPS6101xEVM-157

This chapter details the evaluation process and features of the EVM. For this
evaluation, a load is connected to the output terminal in order to adjust the load
current between 0 mA and 250 mA.

For accurate output voltage and input voltage measurements, it is important
to measure the voltage on the input and output voltage terminals with kelvin
contacts or with a voltmeter connected directly to the input voltage or output
voltage terminals. This will eliminate any measurement errors related to
voltage drops along the input and output terminal wires connected to the
power supply or load.

The EVM has additional pins to allow the user to assemble an additional output
capacitor, C5, onto the PCB for further evaluation purposes.

Topic

Page

2.1

Enable (EN) Jumper

2–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2.2

Auto Discharge Enable (ADEN) Jumper

2–2

. . . . . . . . . . . . . . . . . . . . . . . . . 

2.3

LBI/LBO Comparator

2–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Chapter 2

Содержание TPS6101xEVM-157

Страница 1: ...TPS6101xEVM 157 EVM User s Guide for High Efficiency Boost Converters October 2000 Power Management Products User s Guide SLVU040...

Страница 2: ...this warranty Specific testing of all parameters of each device is not necessarily performed except those mandated by government requirements Customers are responsible for their applications using TI...

Страница 3: ...ings This book may contain cautions and warnings This is an example of a caution statement A caution statement describes a situation that could potentially damage your software or equipment This is an...

Страница 4: ...iv...

Страница 5: ...157 EVM Schematic 1 2 1 2 SLVP157 EVMs Available 1 2 1 3 SLVP157 Bill of Materials 1 3 1 4 Setup of the EVM 1 4 2 Evaluation With the TPS6101xEVM 157 2 1 2 1 Enable EN Jumper 2 2 2 2 Auto Discharge En...

Страница 6: ...itle Attribute Reference vi Figures 1 1 SLVP157 EVM Schematic Diagram 1 2 3 1 Component Placement 3 2 3 2 Top Layer 3 2 3 3 Bottom Layer 3 3 Tables 1 1 Orderable EVMs 1 2 1 2 SLVP157 EVM Bill of Mater...

Страница 7: ...tput voltage between 1 5 V and 3 3 V Only the feedback resistor divider has to be adjusted Also other fixed output voltage versions of the devices can be easily evaluated using the EVM Refer to the da...

Страница 8: ...NPUT L1 C3 OUTPUT ADEN LBO FB COMP GND LBI EN SW TPS6101x C2 VOUT 1 2 SLVP157 EVMs Available Table 1 1 lists the various EVMs available in the TPS6101xEVM 157 family Table 1 1 SLVP157 Orderable EVMs E...

Страница 9: ...RH6D38 100 Coil Sumida R1 1 Resistor 100 k 1 SMD 0805 R2 1 Resistor 1 M0 1 SMD 0805 Not used with fixed output voltage versions R3 1 Resistor 180 k 1 SMD 0805 Not used with fixed output voltage versio...

Страница 10: ...er supply connected to the EVM is turned on 1 Connect a power supply 0 9 V to VO depending on the output voltage of the EVM to the INPUT header 2 Connect a voltmeter to the OUTPUT header 3 Verify that...

Страница 11: ...oltage on the input and output voltage terminals with kelvin contacts or with a voltmeter connected directly to the input voltage or output voltage terminals This will eliminate any measurement errors...

Страница 12: ...be less than 0 4 V after auto discharge When disabling the auto discharge function with the jumper the output capacitors will only be discharged by the load and or by the leakage currents in every con...

Страница 13: ...layout for the adjustable and fixed output voltage EVMs Refer to the data sheet SLVS314 for further layout guidelines The required board area for the complete dc dc converter solution is less than 41...

Страница 14: ...PCB Layout of the TPS6101xEVM 157 SLVP157 3 2 PCB Layout 3 1 PCB Layout of the TPS6101xEVM 157 SLVP157 Figure 3 1 Component Placement Figure 3 2 Top Layer...

Страница 15: ...PCB Layout of the TPS6101xEVM 157 SLVP157 3 3 PCB Layout Figure 3 3 Bottom Layer...

Страница 16: ...3 4 PCB Layout...

Отзывы: