Texas Instruments LP8866EVM User Manual Download Page 18

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Regulatory Notices:

3.1

United States

3.1.1

Notice applicable to EVMs not FCC-Approved:

FCC NOTICE:

This kit is designed to allow product developers to evaluate electronic components, circuitry, or software

associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.

3.1.2

For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:

CAUTION

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.

FCC Interference Statement for Class A EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

3.2

Canada

3.2.1

For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247

Concerning EVMs Including Radio Transmitters:

This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:

(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.

Concernant les EVMs avec appareils radio:

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concerning EVMs Including Detachable Antennas:

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved 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.

Summary of Contents for LP8866EVM

Page 1: ...erials BOM of the LP8866EVM Contents 1 Introduction 2 2 Test Setup 2 3 LP8866EVM Board Layout 10 4 LP8866EVM Schematic 11 5 LP8866EVM Bill of Materials 12 6 LED Load Board 15 List of Figures 1 LP8866E...

Page 2: ...s can be controlled globally through the I C interface or PWM input 1 1 Features The EVM has the following features Up to 48 V Vout boost controller Six high precision current sinks Supports built in...

Page 3: ...r higher LED cable 7 position ribbon cable PC to run GUI software GUI software 2 3 Hardware Setup Figure 2 shows the hardware setup of the LP8866EVM Connect a 12 V external power supply between the po...

Page 4: ...GUI software from the LP8866EVM tools folder Follow the instructions to finish the GUI installation Once installed a shortcut to the GUI is found on the desktop and also in the start up menu under the...

Page 5: ...he bottom left corner of the GUI The button should be like the one shown in Figure 3 There should be a Hardware connected message on the status bar next to the button If it shows Hardware not Connecte...

Page 6: ...n Figure 5 LP8866EVM LED Control Page 2 6 Additional GUI Functions In the selection tab on the left hand side the user can switch between LED Control Monitor Faults Diagnostics and Register Map tabs T...

Page 7: ...T_STATUS 16 bit value for detected duty cycle of PWM input signal PWM_OUTPUT_STATUS 16 bit value for configured duty cycle of PWM output signal LED_CURRENT_STATUS 12 bit current DAC code that brightne...

Page 8: ...herwise the user will need to click READ REGISTER to read the selected register or to click READ ALL REGISTERS to read all registers Clicking on the row of a register automatically updates the corresp...

Page 9: ...ttings as described below 1 Mount R20 to pull up EN input 2 Change pullup and pulldown resistors to select spread spectrum enable R18 or disable R25 option 3 Mount R19 to pull up PWM input for 100 bri...

Page 10: ...ised June 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated LP8866EVM User s Guide 3 LP8866EVM Board Layout Figure 9 and Figure 10 illustrate the EVM board layout F...

Page 11: ...NVU685A December 2019 Revised June 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated LP8866EVM User s Guide 4 LP8866EVM Schematic Figure 11 shows the LP8866EVM sche...

Page 12: ...V 20 0 65 ohm AEC Q200 Grade 2 SMD SMT Radial F C26 1 4 7uF GCM21BR71C475KA73L MuRata CAP CERM 4 7 uF 16 V 10 X7R AEC Q200 Grade 1 0805 0805 C27 C31 2 0 1uF C0402C104K4RACAUTO Kemet CAP CERM 0 1 uF 1...

Page 13: ...m AEC Q200 Grade 0 SMD Shielded Inductor L3 1 9uH PLT10HH501100PNL MuRata Coupled inductor 9 uH 10A 0 0036 ohm SMD 12 9x6 6mm Q1 1 60V SQJ459EP T1_GE3 Vishay Semiconductor MOSFET P CH 60 V 52 A AEC Q1...

Page 14: ...3 1 TLV70033QDDCRQ1 Texas Instruments Single Output Automotive LDO 200 mA Fixed 3 3 V Output 2 to 5 5 V Input with Low IQ 5 pin SOT DDC 40 to 125 degC Green RoHS no Sb Br DDC0005A C1 0 220pF GRM188R72...

Page 15: ...14 J213 J176 J175 J178 J177 1 3 5 D81A 2 4 D81B 1 3 5 D82A 1 3 5 D83A 1 3 5 D84A 1 3 5 D85A 1 3 5 D86A 1 3 5 D87A 1 3 5 D88A 1 3 5 D89A 1 3 5 D90A 1 3 5 D91A 1 3 5 D92A 1 3 5 D93A 1 3 5 D94A 1 3 5 D95...

Page 16: ...05 07 G S Samtec Header 100mil 5x1 Gold TH 5x1 Header R1 R2 R3 R4 R5 R6 6 CRCW12064R99FKEA HP Vishay Dale Res Thick Film 1206 4 99 Ohm 1 0 75W 3 4W 100ppm C Pad SMD Automotive T R 1206 SH J1 SH J19 19...

Page 17: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 18: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 19: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 20: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 21: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 22: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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