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IXAN0069

更新时间： 2024-11-18 07:16:51

品牌	Logo	应用领域
IXYS		转换器
页数	文件大小	规格书
11页	200K
描述
DC to DC Synchronous Converter Design

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IXAN0069 数据手册

DC to DC Synchronous Converter Design

Abdus Sattar, IXYS Corporation

IXAN0068

Modern power electronics products require small size and lighter weight of power

electronics parts. Filter inductor and capacitor sizes must be small. With the small filter,

the switching semiconductor devices must have small switching loss. And heat sink also

must be reduced. For the safe operation with the small heat sink, the switching

semiconductor devices must have small conduction loss. IXYS developed new generation

of Trench MOSFET (Trench2^TM), which has small gate charge and low on-resistance.

The MOSFET will be well suited for high power applications of synchronous DC to DC

converters used in various systems. The MOSFET is rugged and has avalanche energy

capability.

Table 1: Few Examples of IXYS TrenchT2^TMN-Channel Power MOSFETs

Vdss

(max) Tc=25C

(V) (A)

Rds(on)

Ciss

(pF)

(nC

)

trr @

Tj=

R(th)JC

(°C/W)

Package

Type

Part Number

E_AS

(mJ)

(W)

Tj=25°C

(Ω)

25°C

(ns)

600

300

400

600

300

400

IXTA220N04T2

IXTP220N04T2

IXTA90N055T2

IXTP90N055T2

IXTA110N055T2

IXTP110N055T2

IXTA200N055T2

IXTP200N055T2

IXTA70N075T2

IXTP70N075T2

IXTA90N075T2

IXTP90N075T2

360

150

180

360

150

180

TO‐263

TO‐220

TO‐263

TO‐220

TO‐263

TO‐220

TO‐263

TO‐220

TO‐263

TO‐220

TO‐263

TO‐220

220

0.0035

0.0084

0.0066

0.0042

0.012

6500 112

0.42

1.0

220

2670

3060

1.0

110

200

0.82

0.42

1.0

6800 109

2580

3100

0.012

1.0

0.010

0.82

0.010

DC-to-DC Synchronous Converter Design:

Figure 1: Synchronous Buck Converter using IXYS TrenchT2^TMPower MOSFET

12 3 4 5 6 7...11

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