Texas Instruments TPS40090EVM-002 사용자 설명서

Texas Instruments

SLUU195 − June 2004

25

TPS40090 Multi-Phase Buck Converter and TPS2834 Drivers Steps-Down from 12-V to 1.5-V at 100 A

Reference

Designator

QTY

Description

Size

Manufacturer

Part Number

R27, R28, R29,
R30

4

Resistor, chip, 2.2

Ω

, 1/10−W, 1%

805

Std

Std

R31, R32,R35,
R36

4

Resistor, chip, 19.6 k

Ω

, 1/10−W, 1%

805

Std

Std

R33, R34, R37,
R38, R41, R42,
R45, R46

8

Resistor, chip, 2.7

Ω

, 1/16−W, 1%

603

Std

Std

R39, R40, R43,
R44

4

Resistor, chip, 22.6 k

Ω

, 1/10−W, 1%

805

Std

Std

R47, R49, R51,
R52

4

Resistor, chip, 124 k

Ω

, 1/10−W, 1%

805

Std

Std

R48, R50, R53,
R54

4

NTC Resistor, chip, 100 k

Ω

, 1/10-W, 1%

805

Vishay

NTHS0603N01N1003

J

R65, R66

2

Resistor, chip, 1.0 k

Ω

, 1/10-W, 1%

805

Std

Std

TP1

1

Test point, 0.062 Hole, Red

0.25

Keystone

5011

TP2

1

Test point, 0.062 Hole, Black

0.25

Keystone

5010

U1

1

IC, high-frequency, multiphase controller

108,800

TI

TPS40090PW

U2, U3, U4, U5

4

IC, MOSFET driver, fast synchronous buck with DTC

PWP14

TI

TPS2834PWP

U6

1

IC, Precision timer

TSSOP 8

TI

NE555PW

E1, E2

2

Test point, black, 1 mm

0.038

Farnell

240−333

LOAD TRANSIENT CIRCUIT

Q17

1

MOSFET, N-channel, 12 V, 29 A, 3.0 m

Ω

,

PWRPAK

S0−8

Si7858DP

Q18

0

MOSFET, N-channel, 12 V, 29 A, 3.0 m

Ω

,

PWRPAK

S0−8

Si7858DP

R18, R19, R21

3

Resistor, chip, 0.050

Ω

,, 1-W, 0.5%

2512

Vishay

WSL−2512−R050

0.5% R86

R20, R22

0

Resistor, chip, 0.050

Ω

,, 1-W, 0.5%

2512

Vishay

WSL−2512−R050

0.5% R86

R23, R24

2

Resistor, chip, 10

Ω

, 1/16−W, 1%

603

Std

Std

R25

1

Resistor, chip, 143 k

Ω

, 1/10−W, 1%

805

Std

Std

R26

1

Resistor, chip, 1.43 k

Ω

, 1/10−W, 1%

805

Std

Std

C27, C28

2

Capacitor, ceramic, 0.1

µ

F, 25 V, X7R,

±

10%

805

TDK

C2012X7R1E104K

C29

1

Capacitor, ceramic, 0.01

µ

F, 50 V, X7R,

±

5%

805

muRata

GRM40UJ103J50

D5

1

Diode, dual ultra fast, series, 200 mA, 70 V

SOT23

Fairchild

BAV99

D6

1

Diode, dual schottky, 200 mA, 30 V

SOT23

Vishay−Liteon

BAT54C

J3

1

Header, 3-pin, 100 mil spacing, (36-pin strip)

0.100 x 3

Sullins

PTC36SAAN

PRE-BIAS CIRCUIT

U7

1

IC, Single GP comparator, low voltage

SOT23−5

National

LMV331M5

J11

1

Header, 2-pin, 100 mil spacing, (36-pin strip)

0.100 x 2

Sullins

PTC36SAAN

R13, R15, R17,
R58

4

Resistor, chip, 10 k

Ω

, 1/16−W, 1%

603

Std

Std

R57

1

Resistor, chip, 1 M

Ω

, 1/10−W, 1%

805

Std

Std

R14

1

Resistor, chip, 8.66 k

Ω

, 1/16−W, 1%

603

Std

Std