FA5546 데이터 시트보기 (PDF) - Fuji Electric

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FA5546

Switching Power Supply Control IC

Fuji Electric 

FA5546/47

5. Functional description of pins

Pin No.

1

2

3

4

5

6

7

8

Pin Name

L AT

FB

IS

GND

OUT

VCC

(NC)

VH

Pin function

External latch signal input. Soft start.

Feed back input. Light load and

OLP detect

Current s ense (Input)

Ground

Driver Output

Power supply

(unused)

High voltage input. Brown-out

detect

VH （NC） VCC OUT

8

7

6

5

1

2

LAT FB

3

4

IS GND

6. Rating & characteristics

* “+” shows sink and “–“ shows source in current prescription.

(1) Absolute maximum rating

Item

Power supply voltage

OUT pin output peak current

OUT pin voltage

FB pin voltage

IS pin voltage

LAT pin voltage

VH pin input voltage

Total loss (Ta = 25℃)

Junction temperature in operation

Storage temperature

Symbol

Rating

Unit

VCC

28

V

Ioh

-0.5

A

Iol

+1.0

A

VOUT

-0.3 to Vcc+0.3

V

VFB

-0.3 to 5.0

V

VIS

-2.0 to 5.0

V

VLAT

-0.3 to 5.0

V

VVH

-0.3 to 500

V

800 (DIP-8)

mW

Pd

400 (SOP-8)

mW

Tj

-30 to 125

℃

Tstg

-40 to 150

℃

○Allowable loss reduction characteristics

800mW (DIP)

400mW (SOP)

0

-30

25

85

125

Ambient Temperature Ta [℃]

Fuji Electric Co., Ltd.

AN-027E Rev.0.4

April -2011

6

http://www.fujielectric.co.jp/products/semiconductor/

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