FA7764 データシートの表示（PDF） - Fuji Electric

部品番号

コンポーネント説明

メーカー

FA7764

DC/DC Power Supply control IC

Fuji Electric 

FA7764

6. Ratings and characteristics

(1)Absolute maximum rating

Following data are subject to change without notice. When using this IC, be sure to obtain the latest

specifications.

*The items except operation junction temperature, operating ambient temperature, and storage temperature.

Item

Symbol Condition

Rating

Units

Power Supply voltage (VCC)

IN input voltage

CREG input voltage

RT input voltage

VCC

VVIN

VCREG

VRT

50

V

-0.3 to 4.0

V

-0.3 to 4.0

V

-0.3 to 4.0

V

VBIAS input voltage

VVBIAS

-0.3 to 6.0

V

ENB input voltage

Power dissipation *1

SP-8(E-Pad)

DIP-8

Operation junction temperature

Operation ambient temperature

Storage temperature

VENB

Pd

TJ

TOPR

TSTG

Ta≦25°C

-0.3 to 4.0

V

3.9

W

1.39

+150

°C

-40 to +85

°C

-50 to +150

°C

The characteristic of power dissipation

5

4

SOP-8(E-Pad)

3

2

DIP-8

1

0

-40 -20 0 20 40 60 80 100 120 140 160

Ambient temperature Ta[℃]

*1 This IC should be used less than the total power dissipation (Pd).

This Pd is based on the condition that this IC is mounted on 4-multi-layer PCB(the size is 50mm×40mm)

and the Exposed pad (E-pad, in the reverse side of the IC package) is connected to the ground at Ta=25

degrees.

Over 25 degrees, delating the Pd as follows:

Thermal resistance θj-a(Junction to Ambient） SOP-8(E-Pad):32 degrees/W, DIP-8:95 degree/W

θj-c(Junction to Case）

SOP-8(E-Pad):16.5 degrees/W, DIP-8:55 degree/W

θEPAD-c(E-pad to Case）

SOP-8(E-Pad):6 degrees/W

Note) This IC should be used on the condition that the junction temperature is less than 150 degrees, based

on the total power dissipation.

Also this IC should be examined that the junction temperature is actually less than 150degrees by

measuring the surface temperature of this package.

Fuji Electric Systems Co., Ltd.

AN-059E Rev.1.0

6

June.2010

http://www.fujielectric.co.jp/fdt/scd/

Share Link: