SNVU821 November   2023 TPS92642-Q1

 

  1.   1
  2.   TPS92642EVM-203 5-A Synchronous Buck IR LED Driver Evaluation Module
  3.   Trademarks
  4. 1Introduction
  5. 2Warnings and Cautions
  6. 3Description
    1. 3.1 Typical Applications
    2. 3.2 Features
    3. 3.3 Connector and Test Point Description
    4. 3.4 Electrical Performance Specifications
  7. 4Test Setup
    1. 4.1 Input Supplies and LED Load Connections
    2. 4.2 Pulse Duty Cycle Limit (PLMT) Control
    3. 4.3 Analog Dimming Using IADJ
    4. 4.4 PWM Dimming Using nExt_PWM Test Points
    5. 4.5 Switching Frequency Set Point Using RON
  8. 5Performance Data and Typical Characteristic Curves
    1. 5.1 Efficiency
    2. 5.2 Analog Dimming
    3. 5.3 PWM Dimming
    4. 5.4 PWM Dimming Waveforms
  9. 6Schematic
  10. 7PCB Layout
  11. 8Bill of Materials

8 Bill of Materials

Table 8-1 contains the TPS92642EVM-203 components list according to the schematic shown in Figure 6-1.

Table 8-1 TPS92642EVM-203 Bill of Materials
Reference Designator QTY Value Description Size Part Number MFR

C1, C18

2

1uF

CAP, CERM, 1 uF, 35 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0603

603

CGA3E1X7R1V105K080AC

TDK

C2

1

0.033uF

CAP, CERM, 0.033 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402

402

CGA2B3X7R1H333K050BB

TDK

C3, C12

2

0.01uF

CAP, CERM, 0.01 uF, 50 V, +/- 5%, C0G/NP0, AEC-Q200 Grade 1, 0603

603

CGA3E2C0G1H103J080AA

TDK

C4, C13

2

0.1uF

CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0805

805

CEU4J2X7R1H104K125AE

TDK

C5, C6, C14, C17

4

4.7uF

CAP, CERM, 4.7 µF, 50 V,+/- 10%, X7R, AEC-Q200 Grade 1, 1206

1206

CGA5L3X7R1H475K160AE

TDK

C7, C10

2

0.01uF

CAP, CERM, 0.01 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402

402

CGA2B3X7R1H103K050BB

TDK

C9

1

10uF

CAP, CERM, 10 uF, 16 V, +/- 10%, X7R, 0805

805

CL21B106KOQNNNE

Samsung Electro-Mechanics

C11

1

2200pF

CAP, CERM, 2200 pF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402

402

CGA2B2X7R1H222K050BA

TDK

C15

1

0.22uF

CAP, CERM, 0.22 µF, 16 V,+/- 10%, X7R, AEC-Q200 Grade 1, 0402

402

GCM155R71C224KE02D

MuRata

H1, H2, H3, H4

4

Bumpon, Hemisphere, 0.44 X 0.20, Clear

Transparent Bumpon

SJ-5303 (CLEAR)

3M

J1, J2

2

Header, 2.54mm, 2x1, Gold, TH

Header, 2.54mm, 2x1, TH

TSW-102-08-G-S

Samtec

L1

1

WE-HCI SMT Flat Wire High Current Inductor, size 7040, 3.3uH, 8.1A, 17.2mOhm

Wurth Elektronik

R1

1

0.033

RES, 0.033, 1%, 1 W, AEC-Q200 Grade 0, 1206

1206

ERJ-8CWFR033V

Panasonic

R2

1

0

RES, 0, 5%, 0.063 W, 0402

402

RC0402JR-070RL

Yageo America

R3

1

47.5k

RES, 47.5 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

402

CRCW040247K5FKED

Vishay-Dale

R4, R6

2

1.00k

RES, 1.00 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

402

CRCW04021K00FKED

Vishay-Dale

R5

1

100k

RES, 100 k, 0.5%, 0.063 W, AEC-Q200 Grade 0, 0402

402

CRCW0402100KDHEDP

Vishay-Dale

R7

1

22.6k

RES, 22.6 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

402

CRCW040222K6FKED

Vishay-Dale

R8

1

10k

RES, 10 k, 5%, 0.063 W, AEC-Q200 Grade 0, 0402

402

CRCW040210K0JNED

Vishay-Dale

TP1, TP2, TP5, TP6, TP7

5

Terminal, Turret, TH, Double

Keystone1502-2

1502-2

Keystone

TP3, TP4, TP8

3

Test Point, Multipurpose, Red, TH

Red Multipurpose Testpoint

5010

Keystone

TP9, TP10

2

Test Point, Miniature, SMT

Testpoint_Keystone_Miniature

5015

Keystone Electronics

U1

1

Synchronous Buck Infrared LED Driver, HTSSOP16

HTSSOP16

TPS92642QPWPRQ1

Texas Instruments