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November 2002

Power Management Products

User’s Guide

SLVU078

Summary of Contents for TPS6110XEVM-216

Page 1: ... November 2002 Power Management Products User s Guide SLVU078 ...

Page 2: ...nt that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or end...

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: ...ting any load to the EVM output 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 100 C The EVM is designed to operate properly with certain components above 100 C as long as the input and output ranges are maintained These components include but are not limited to li...

Page 5: ...ge Enable ADEN Jumper 2 2 2 1 4 Power Save Mode Enable SKIPEN Jumper 2 2 2 1 5 LBI LBO Comparator 2 3 2 1 6 Power Good Ooutput 2 3 3 Bill of Materials PCB Layout and Schematic 3 1 3 1 Bill of Materials 3 2 3 2 PCB Layout 3 3 3 3 Schematic 3 4 Figures 3 1 Component Placement 3 3 3 2 Top Layer 3 3 3 3 Bottom Layer 3 4 3 4 TPS6110x EVM Circuit Diagram 3 4 Tables 1 1 Orderable EVM s 1 1 3 1 Bill of Ma...

Page 6: ...Contents vi ...

Page 7: ...sions of the devices can be easily evaluated using the EVM Refer to the data sheet SLVS411 for the various fixed output voltage options available in the TPS6110x device family The TPS6110x has an input voltage range between 0 9 V and 3 6 V For proper operation the maximum input voltage should not exceed the output voltage The maximum output current is at least 100 mA depending on the input voltage...

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Page 9: ...o VOUT depending on the output voltage of the EVM to the INPUT header Connect a voltmeter to the OUTPUT header Verify that all jumper s are set to their desired value EN ENPB SKIPEN ADEN LDOEN Default setting is EN SKIPEN ADEN and LDOEN to VBAT and ENPB to GND Turn on the power supply and verify the output voltage Topic Page 2 1 Evaluation With the TPS6110x EVM 2 2 Chapter 2 ...

Page 10: ...he LDO enable pin LDOEN to VBAT enables the LDO section of the part Disabling the integrated LDO can be done by setting this jumper to GND 2 1 3 Auto Discharge Enable ADEN Jumper This jumper enables the device to discharge the output capacitor after the device is disabled by setting EN to GND If ADEN is set to VBAT the capacitors connected to VOUT is discharged by an internal switch with a resista...

Page 11: ...ge at LBI is above the appropriate thresholds A resistor divider R1 R2 is used on the EVM to monitor the supply voltage More details about setting the low battery threshold voltage can be found in the data sheet literature number SLVS411 2 1 6 Power Good Output The PG pin is an open drain output with a pullup resistor R9 connected to the output The signal on this pin goes high as soon as the outpu...

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Page 13: ...B Layout and Schematic Bill of Materials PCB Layout and Schematic This chapter contains bill of materials PCB layout of the EVM and schematic Topic Page 3 1 Bill of Materials 3 2 3 2 PCB Layout 3 3 3 3 Schematic 3 4 Chapter 3 ...

Page 14: ...0 kΩ 1 resistor SMD0805 TPS61100EVM and TPS61103EVM R6 180 kΩ 1 resistor SMD0805 TPS61100EVM R3 1 MΩ 1 resistor SMD0805 TPS61100EVM R7 R8 R9 1 MΩ 1 resistor SMD0805 R1 390 kΩ 1 resistor SMD0805 R5 390 kΩ 1 resistor SMD0805 TPS61100EVM and TPS61103EVM R5 0 Ω resistor SMD0805 TPS61106EVM and TPS61107EVM R2 470 kΩ 1 resistor SMD0805 R11 Not assembled LDOOUT Header 1 4 0 1I pitch OUTPUT Header 1 4 0 1...

Page 15: ...ures below show the layout for the adjustable and fixed output voltage EVMs Please refer to the data sheet for further layout guidelines The required board area for the complete dc to dc converter solution takes up less than 320 mm2 16 mm 20 mm on a double sided PCB as it is indicated by the rectangular on the component placement plot Figure 3 1 Component Placement Figure 3 2 Top Layer ...

Page 16: ... EVM Circuit Diagram R7 TPS6110xRGE OUTPUT GND VBAT LBI ADEN EN SWN ENPB ENLDO SKIPEN VOUT LDOIN FB LDOOUT PGOOD LBO1 LBO2 SWP LDOSENSE PGND C6 C4 C5 R8 R9 U1 R1 R2 C3 L1 10µF 10µH 2 2µF 100µF 2 2µF LBO1 LBO2 PGOOD INPUT SKIPEN ADEN EN ENPB ENLDO R11 R10 R6 R3 R5 R4 LDOOUT ...

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