SI-8090E datasheet(3/4 Pages) SANKEN

Teilenummer	SI-8090E

Bauteilbeschribung	Full-Mold, Separate Excitation Switching Type

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Hersteller	SANKEN [Sanken electric]

Direct Link	http://www.sanken-ele.co.jp/en

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3 / 4 page

78

sBlock Diagram

sStandard External Circuit

sTa-PD Characteristics

SWOUT

VOS

VIN

3

GND

5

N.C

4

2

1

OSC

Reg.

OCP

Comp.

Reset

Drive

TSD

Amp.

VREF

VIN

C1

D1

L1

5V : 200

µH

9V,12V: 300

µH

100

µF

VIN

VO

AK06

GND

NC

GND

SI-8000E

SWOUT

VOS

1

2

3

+

C2

330

µF

+

5

4

(Sanken)

15

10

5

0

–30

025

50

Ambient Operating Temperature Ta (

°C)

75

100

125

100

×100

×2mm

(5.2

°C/W)

75×

2mm

(7.6

°C/W)

Infinite heatsink

Without heatsink

With Silicon Grease

Heatsink: Aluminum

qSI-8000E Series

sSelecting External Components

1. Inductor L1

1) It must be suited for switching regulators.

Do not use inductors as noise filters as they generate excessive heat.

2) It must have the appropriate inductance value.

If the inductance is too small (150

µH or lower), abnormal oscillation may occur causing operation problems in the overcurrent protection

circuit within the rated current range.

3) The rated current must be satisfied.

If the rated current is exceeded, magnetic saturation leads to overcurrent.

2. Capacitors C1 and C2

1) They must satisfy the withstand voltage and allowable ripple current.

Exceeding the ratings of these capacitors or using them without derating shortens their service lives and may also cause abnormal

oscillation of the IC.

2) C2 must be a low-impedance type capacitor.

A low-impedance type capacitor is recommended for C2 to ensure minimum ripple voltage and stable switching operation.

3. Diode D1

The Sanken AK06 diode is recommended for D1. If you intended to use an equivalent diode, be sure to use a Schottky Barrier diode and make

sure that the reverse voltage applied to terminal 2 of the IC does not exceed the value (–1V) given in the absolute maximum ratings. If you use

a fast recovery diode or any other diode, application of a reverse voltage generated from the recovery or ON voltage of the diode may damage

the IC.

Application

Variable output voltage

Output voltage can be adjusted in the same way as SI-8000S in page 85.

The efficiency depends on the input voltage and the out-

put current. Thus, obtain the value from the efficiency

graph on page 79 and substitute the percentage in the

formula above.

VO : Output voltage

VIN : Input voltage

IO : Output current

ηx : Efficiency (%)

VF : Diode forward voltage

0.4V(AK06)

Thermal design for D1 must be considered separately.

PD=VO•IO

100

–1

–VF•IO 1–

VO

ηχ

VIN

Ähnliche Beschreibung - SI-8090E

Hersteller	Teilenummer	Datenblatt	Bauteilbeschribung
Sanken electric	SI-8000S	63Kb / 6P	Full-Mold, Separate Excitation Switching Type
	SI-8000JF	87Kb / 6P	Full-Mold, Separate Excitation Switching Type
	SI-8015JF	83Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8050JF	83Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8090S	61Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8000JF	83Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8050S	61Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8120JF	83Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8120S	61Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode
	SI-8050E	49Kb / 2P	Full-Mold, Separate Excitation Step-down Switching Mode

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