Texas Instruments UCC38500EVM 2.1 DM38500 EVM Part Descriptions, 1. DM38500 Part Descriptions

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2.1 DM38500 EVM Part Descriptions

DM38500 EVM Part Descriptions

2.1 DM38500 EVM Part Descriptions

Table 2−1. DM38500 Part Descriptions

Description

Reference

Qty

Value/Type Number

Manufacturer

Part

Number

 

 

 

 

 

 

C12, C20,

3

1 F, 50 V, polypropylene

Panasonic

ECQ−V1H105JL

 

C29

 

 

 

 

 

 

C13

1

47 pF, 50 V, ceramic

Panasonic

ECU−S2A470JCA

 

C7, C16,

3

10 nF, 50 V, ceramic

Panasonic

ECU−S1H103JCB

 

C14

 

 

 

 

 

 

C17, C38

2

100 pF, 50 V, ceramic

Panasonic

ECU−S1H101JCA

 

C19

1

2.2 nF, 50 V, ceramic

Panasonic

ECU−S1H222JCB

 

C2

1

470 nF, 400 V,

Panasonic

ECQ−E4474KZ

 

polypropylene

 

 

 

 

 

Capacitors

C21

1

680 pF, 50 V, ceramic

Panasonic

ECU−S1H681JCB

C22

1

390 pF, 50 V, ceramic

Panasonic

ECU−S1H391JCA

 

 

C24

1

100 pF, 50 V, ceramic

Panasonic

ECU−S1H101JCA

 

C25

1

150 nF, 50 V, ceramic

Panasonic

ECU−S1H154KBB

 

C26

1

47 nF, 600 V, polypropylene

Panasonic

ECQ−E6473KF

 

C27, C18

2

100 pF, 50 V, ceramic

Panasonic

ECU−S1H105KBB

 

C28, C23

2

2.2 F, 50 V, ceramic

Panasonic

ECU−S1H225MEB

 

C3

1

100 F, 450 V, electrolytic

Panasonic

ECO−S2WB101BA

 

C30

1

1800 F, 25 V, electrolytic

Panasonic

ECA−IEFQ182

 

C4, C5, C8

3

0.1 F, 50 V, ceramic

Panasonic

ECU−S1H104KBB

 

C6

1

100 F, 25 V, electrolytic

Panasonic

EEU−FCIE101S

 

D1

1

6 A, 600 V, GI756CT

General Inst.

GI756CT

 

D11

1

6 A, 600 V, bridge rectifier,

Diodes Inc.

PB66

 

PB66

 

 

 

 

 

 

D12

1

1 A, 40 V, Shottky

 

SR103CT

 

D13

1

TL431CLP

TI

TL431C

 

D14

1

10 V, 1 W, Zener

 

1N4740

Diodes

D15, D2

2

18 V, 1 W, Zener

 

1N4746

 

D3

1

6 A, 600 V, ultra fast

IR

HFA08TB60−ND

 

D4, D6

2

1 A, 600 V, fast recovery

Philips

BYV26C

 

D5,D7,D9,

5

1 A, 40 V, Shottky

 

1N5819

 

D10, D16

 

 

 

 

 

 

 

D8

1

6 A, 600 V, full wave

IR

HBR2045

 

rectifier

 

 

 

 

 

 

 

 

 

 

 

Fuses

FH1, FH2

2

3AG Fuse clip

 

 

F1

1

6 A, 250 V

 

 

 

 

 

 

HS3

1

For Q3

Aavid

513201

Heat sinks

HS4, HS5

2

For D3 and D8

Aavid

579302 B 0 00 00

 

HS1, HS2

2

For Q1 and Q2

Avid

593002 B 0 34 00

Inductors

L1

1

1.7 mH, 2.5 A, coupled

Cooper

CTX08−14730

L2

1

35 H, 8.3 A

Cooper

CTX08−14279

 

 

Q1,Q2

2

8 A, 500 V, n−channel

IR

IRF840

MOSFETs

Q3

1

14 A, 500 V, n−channel

IR

IRFP450

 

Q5

1

NPN transistor

 

MJE13005

 

Q4, R8, R9,

 

 

 

 

Not used

C9, C15,

6

Not used

 

 

 

C10

 

 

 

 

2-2

Image 14
Contents SLUU068C Using the UCC38500EVMUser’s Guide User’s Guide Using the UCC38500Power Management Products FebruaryIMPORTANT NOTICE EVM IMPORTANT NOTICE EVM WARNINGS AND RESTRICTIONS 1.3.3 Step 3. Evaluating the Demonstration’s Boards Performance Contents1−1. DM38500 Evaluation Module Application Schematic 1.3.4 Additional Information 1.4 DM38500 EVM PerformancePage General InformationChapter TopicJ Accurate Power Limiting J Improved Feedforward Line Regulation 1.1 FeaturesJ Controls Boost Preregulator to Near-unity Power Factor 1.2 Description1.3.1 Step 1. Load Connections 1.3.2 Step 2. Applying Input Power1.3 Operating Guidelines 1.3.3 Step 3. Evaluating the Demonstration’s Boards PerformanceSee EVM Warnings High-Temperature componentHigh-Voltage component. See EVM Warnings andFigure 1−2. DM38500 EVM Efficiency Figure 1−3. DM38500 Power Factor1.4 DM38500 EVM Performance Total Figure 1−4. DM38500 Total Harmonic DistortionDistortion V IN = 265DM38500 Board Layouts ReferenceDM38500 EVM Part Descriptions 2.1 DM38500 EVM Part Descriptions Table 2−1. DM38500 Part DescriptionsDescription 2 Unless otherwise specified, all resistors have a tolerance of ±1%3 Capacitor C38 is located at reference designator R38 on the PCB Value/Type NumberFigure 2−1. DM38500 EVM PC Board Top Assembly 2.2 DM38500 Board Layouts