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LM5160A, LM5160 Buck EVM User's Guide

User's Guide

Literature Number: SNVU441B

October 2014 – Revised April 2015

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Содержание LM5160

Страница 1: ...LM5160A LM5160 Buck EVM User s Guide User s Guide Literature Number SNVU441B October 2014 Revised April 2015 ...

Страница 2: ...M Mode Selection 5 4 Board Layout 5 5 Schematic 6 6 LM5160DNTBKEVM Bill of Materials for 300 kHz Configuration 7 7 Performance Curves with LM5160A LM5160 7 Revision History 10 2 Table of Contents SNVU441B October 2014 Revised April 2015 Submit Documentation Feedback Copyright 2014 2015 Texas Instruments Incorporated ...

Страница 3: ...FPWM 0 at no load 7 11 VIN 48V and FPWM 0 at no load Zoomed 7 12 VIN 48V and FPWM 1 at no load 8 13 Load Transient IO 300mA to 1 5A 8 14 Startup at RLOAD 3Ω 8 15 Pre Bias Startup at RLOAD 3Ω and VIN 48V 8 16 EN UVLO Startup at RLOAD 5Ω and VIN 24V 8 17 EN UVLO Startup at RLOAD 100Ω and VIN 24V 8 18 Output Short Circuit at VIN 48V 9 List of Tables 1 Board Specification 4 2 FPWM Pin Mode 5 3 SNVU441...

Страница 4: ...ction describes the connectors the test points and the jumper on the EVM as well as how to properly connect and use the LM5160DNTBKEVM with the LM5160 unless stated otherwise 3 1 Input Output Connector Description J1 Input is the power input terminal for the converter The terminal block provides an input VIN and ground connection to allow the user to attach the EVM to a power supply J2 Output is t...

Страница 5: ...onduction mode DCM of operation Table 1 summarizes the LM5160NDTBKEVM Jumper JP1 settings that are chosen to activate the desired mode of operation Refer to the LM5160 datasheet SNVSA03A for more detailed information regarding the FPWM mode selection Table 2 FPWM Pin Mode JP1 Shunt Setting Logic Stage Description The FPWM pin is grounded or left floating DCM DCM or Floating High Z 0 enabled at lig...

Страница 6: ... injection network If this external ripple configuration is used substitute R8 with a 0Ω 0805 resistor Calculate these component values based on the formulae mentioned under Type 3 ripple configuration in the LM5160 LM5160A Datasheet SNVSA03A See application note AN 1481 for more details for each ripple generation method 5 Schematic Figure 5 Buck EVM Schematic with LM5160 When If used with LM5160 ...

Страница 7: ... 3x1 Tin plated 10mm x L1 Inductor Coiltronics DR125 470 R 47µH 2 71A 0 074 Ω SMD 12 5mm R1 Resistor Yageo America RC0603FR 07127KL 0603 127 kΩ 1 0 1W R2 Resistor Vishay Dale CRCW060318K2FKEA 0603 18 2 kΩ 1 0 1W R3 Resistor Yageo America RC0603FR 07169KL 0603 169 kΩ 1 0 1W R4 Resistor Yageo America RC0805JR 070RL 0805 0 Ω 5 0 125W R6 Resistor Vishay Dale CRCW06033K01FKEA 0603 3 01 kΩ 1 0 1W R7 Res...

Страница 8: ...LM5160A LM5160 www ti com Figure 9 Efficiency DCM vs CCM at 300kHz Figure 8 Efficiency vs VIN Figure 10 VIN 48V and FPWM 0 at no load Figure 11 VIN 48V and FPWM 0 at no load Zoomed Figure 12 VIN 48V and FPWM 1 at no load Figure 13 Load Transient IO 300mA to 1 5A 8 LM5160A LM5160 User s Guide SNVU441B October 2014 Revised April 2015 Submit Documentation Feedback Copyright 2014 2015 Texas Instrument...

Страница 9: ...3Ω Figure 15 Pre Bias Startup at RLOAD 3Ω and VIN 48V Figure 17 EN UVLO Startup at RLOAD 100Ω and VIN 24V Figure 16 EN UVLO Startup at RLOAD 5Ω and VIN 24V Figure 18 Output Short Circuit at VIN 48V 9 SNVU441B October 2014 Revised April 2015 LM5160A LM5160 User s Guide Submit Documentation Feedback Copyright 2014 2015 Texas Instruments Incorporated ...

Страница 10: ...ed information for LM5160A EVM 4 Added updated EVM views with LM5160A 5 NOTE Page numbers for previous revisions may differ from page numbers in the current version 10 Revision History SNVU441B October 2014 Revised April 2015 Submit Documentation Feedback Copyright 2014 2015 Texas Instruments Incorporated ...

Страница 11: ...ring the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Страница 12: ... by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la rég...

Страница 13: ... connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cu...

Страница 14: ...F REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Страница 15: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

Страница 16: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments LM5160DNTFBKEVM LM5160DNTBKEVM ...

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