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J4

OUTPUT6

J3

5

4

1

2

3

6

7

J2

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

VBOOST

5

4

1

2

3

J89

GND

J1

OUT6

J11

J10

J13

J12

J15

J14

J17

J16

J19

J18

J21

J20

J23

J22

J25

J24

J27

J26

J29

J28

J31

J30

J33

J32

J35

J34

J37

J36

J39

J38

J41

J40

J43

J42

J45

J44

J7

J6

J9

J8

1

3

5

D1A

2

4

D1B

1

3

5

D2A

1

3

5

D3A

1

3

5

D4A

1

3

5

D5A

1

3

5

D6A

1

3

5

D7A

1

3

5

D8A

1

3

5

D9A

1

3

5

D10A

1

3

5

D11A

1

3

5

D12A

1

3

5

D13A

1

3

5

D14A

1

3

5

D15A

1

3

5

D16A

1

3

5

D17A

1

3

5

D18A

1

3

5

D19A

1

3

5

D20A

2

4

D2B

2

4

D3B

2

4

D4B

2

4

D5B

2

4

D6B

2

4

D7B

2

4

D8B

2

4

D9B

2

4

D10B

2

4

D11B

2

4

D12B

2

4

D13B

2

4

D14B

2

4

D15B

2

4

D16B

2

4

D17B

2

4

D18B

2

4

D19B

2

4

D20B

J53

J52

J55

J54

J57

J56

J59

J58

J61

J60

J63

J62

J65

J64

J67

J66

J69

J68

J71

J70

J73

J72

J75

J74

J77

J76

J79

J78

J81

J80

J83

J82

J85

J84

J87

J86

J49

J48

J51

J50

1

3

5

D21A

2

4

D21B

1

3

5

D22A

1

3

5

D23A

1

3

5

D24A

1

3

5

D25A

1

3

5

D26A

1

3

5

D27A

1

3

5

D28A

1

3

5

D29A

1

3

5

D30A

1

3

5

D31A

1

3

5

D32A

1

3

5

D33A

1

3

5

D34A

1

3

5

D35A

1

3

5

D36A

1

3

5

D37A

1

3

5

D38A

1

3

5

D39A

1

3

5

D40A

2

4

D22B

2

4

D23B

2

4

D24B

2

4

D25B

2

4

D26B

2

4

D27B

2

4

D28B

2

4

D29B

2

4

D30B

2

4

D31B

2

4

D32B

2

4

D33B

2

4

D34B

2

4

D35B

2

4

D36B

2

4

D37B

2

4

D38B

2

4

D39B

2

4

D40B

J96

J95

J98

J97

J100

J99

J102

J101

J104

J103

J106

J105

J108

J107

J110

J109

J112

J111

J114

J113

J116

J115

J118

J117

J120

J119

J122

J121

J124

J123

J126

J125

J128

J127

J130

J129

J92

J91

J94

J93

1

3

5

D41A

2

4

D41B

1

3

5

D42A

1

3

5

D43A

1

3

5

D44A

1

3

5

D45A

1

3

5

D46A

1

3

5

D47A

1

3

5

D48A

1

3

5

D49A

1

3

5

D50A

1

3

5

D51A

1

3

5

D52A

1

3

5

D53A

1

3

5

D54A

1

3

5

D55A

1

3

5

D56A

1

3

5

D57A

1

3

5

D58A

1

3

5

D59A

1

3

5

D60A

2

4

D42B

2

4

D43B

2

4

D44B

2

4

D45B

2

4

D46B

2

4

D47B

2

4

D48B

2

4

D49B

2

4

D50B

2

4

D51B

2

4

D52B

2

4

D53B

2

4

D54B

2

4

D55B

2

4

D56B

2

4

D57B

2

4

D58B

2

4

D59B

2

4

D60B

J138

J137

J140

J139

J142

J141

J144

J143

J146

J145

J148

J147

J150

J149

J152

J151

J154

J153

J156

J155

J158

J157

J160

J159

J162

J161

J164

J163

J166

J165

J168

J167

J170

J169

J172

J171

J134

J133

J136

J135

1

3

5

D61A

2

4

D61B

1

3

5

D62A

1

3

5

D63A

1

3

5

D64A

1

3

5

D65A

1

3

5

D66A

1

3

5

D67A

1

3

5

D68A

1

3

5

D69A

1

3

5

D70A

1

3

5

D71A

1

3

5

D72A

1

3

5

D73A

1

3

5

D74A

1

3

5

D75A

1

3

5

D76A

1

3

5

D77A

1

3

5

D78A

1

3

5

D79A

1

3

5

D80A

2

4

D62B

2

4

D63B

2

4

D64B

2

4

D65B

2

4

D66B

2

4

D67B

2

4

D68B

2

4

D69B

2

4

D70B

2

4

D71B

2

4

D72B

2

4

D73B

2

4

D74B

2

4

D75B

2

4

D76B

2

4

D77B

2

4

D78B

2

4

D79B

2

4

D80B

J180

J179

J182

J181

J184

J183

J186

J185

J188

J187

J190

J189

J192

J191

J194

J193

J196

J195

J198

J197

J200

J199

J202

J201

J204

J203

J206

J205

J208

J207

J210

J209

J212

J211

J214

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

D95A

1

3

5

D96A

1

3

5

D97A

1

3

5

D98A

1

3

5

D99A

1

3

5

D100A

2

4

D82B

2

4

D83B

2

4

D84B

2

4

D85B

2

4

D86B

2

4

D87B

2

4

D88B

2

4

D89B

2

4

D90B

2

4

D91B

2

4

D92B

2

4

D93B

2

4

D94B

2

4

D95B

2

4

D96B

2

4

D97B

2

4

D98B

2

4

D99B

2

4

D100B

J221

J220

J223

J222

J225

J224

J227

J226

J229

J228

J231

J230

J233

J232

J235

J234

J237

J236

J239

J238

J241

J240

J243

J242

J245

J244

J247

J246

J249

J248

J251

J250

J253

J252

J255

J254

J217

J216

J219

J218

1

3

5

D101A

2

4

D101B

1

3

5

D102A

1

3

5

D103A

1

3

5

D104A

1

3

5

D105A

1

3

5

D106A

1

3

5

D107A

1

3

5

D108A

1

3

5

D109A

1

3

5

D110A

1

3

5

D111A

1

3

5

D112A

1

3

5

D113A

1

3

5

D114A

1

3

5

D115A

1

3

5

D116A

1

3

5

D117A

1

3

5

D118A

1

3

5

D119A

1

3

5

D120A

2

4

D102B

2

4

D103B

2

4

D104B

2

4

D105B

2

4

D106B

2

4

D107B

2

4

D108B

2

4

D109B

2

4

D110B

2

4

D111B

2

4

D112B

2

4

D113B

2

4

D114B

2

4

D115B

2

4

D116B

2

4

D117B

2

4

D118B

2

4

D119B

2

4

D120B

MAX 200mA

4.99

R1

J46

OUTPUT5

J5

OUT5

MAX 200mA

4.99

R2

J88

OUTPUT4

J47

OUT4

MAX 200mA

4.99

R3

J131

OUTPUT3

J90

OUT3

MAX 200mA

4.99

R4

J173

OUTPUT2

J132

OUT2

MAX 200mA

4.99

R5

J215

OUTPUT1

J174

OUT1

MAX 200mA

4.99

R6

GND

VBOOST

www.ti.com

LED Load Board

15

SNVU685A – December 2019 – Revised June 2020

Submit Documentation Feedback

Copyright © 2019–2020, Texas Instruments Incorporated

LP8866EVM User's Guide

6

LED Load Board

An LED load board LP886X-LEDLOAD-EVM is included in the EVM kit. The LED board is intended to be
used as the load for LED driver and can be configured for up to 6 strings and up to 20 LEDs in the string
(Number of LEDs in use is defined by jumpers). The initial setting on the board is 8 LEDs in series per
string. Cree XLamp ML-C LEDs with maximum current of 350 mA (for parallel use) and maximum forward
voltage of 3.4 V at 100 mA (3.2-V typical) are used on the board.

Figure 12. LP886X-LEDLOAD-EVM Schematic

Table 2. LP886X-LEDLOAD-EVM Bill of Materials

Designator

QTY

Part Number

Manufacturer

Description

Package

Reference

!PCB1

1

PSIL110

Printed Circuit Board

D1…D120

120

MLCAWT-A1-0000-
000XE1

Cree Inc.

LED XLAMP COOL WHITE
6500K 4SMD

SMD4

H1, H2, H3, H4

4

NY PMS 440 0038 PH

B&F Fastener
Supply

H5, H6, H7, H8

4

1902C

Keystone

Standoff

H9, H10, H11, H12

4

4802

Keystone

H13

1

MCH050

Gray smoked plexiglass, 0.125"
THK. Must comply with REACH
directive. Must meet or exceed
UL94-V0

7.53" X 4" X

0.125"

J7, J9...J43, J45; J49,
J51...J85, J87; J92,
J94...J128, J130; J134,
J136...J170, J172; J176,
J178...J212, J214; J217,
J219...J253, J255; J1, J3,
J4, J5, J46, J47, J88, J90,
J131, J132, J173, J174,
J215

133

TSW-102-07-G-S

Samtec

Header, 100mil, 2x1, Gold, TH

2x1 Header

J2

1

TSW-107-07-G-S

Samtec

Header, 100mil, 7x1, Gold, TH

7x1 Header

Содержание LP8866EVM

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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