BP5034 Ver la hoja de datos (PDF) - ROHM Semiconductor

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fabricante

BP5034

AC/DC converter unit

ROHM Semiconductor 

Regulator ICs

FSelecting attachments

(1) Diodes

The rectifying diodes used should fulfill the following

conditions.

In the absolute maximum ratings, the reverse surge cur-

rent should be 400V or higher, the average rectifying cur-

rent should be 0.5A or higher, and the forward surge volt-

age should be 20A or higher.

(2) Capacitor for input voltage smoothing

A capacitor with a larger capacitance produces a more

stable output voltage, but increases the surge current

when the power supply is turned on. The capacitor

should have a withstand resistance of at least 200V.

Make sure a capacitor between 3.3 and 10µF is used.

BP5034

(3) Capacitor for output voltage smoothing

This capacitor should have a low ESR. Capacitors de-

signed for low-impedance switching power supplies are

especially suitable. The ESR of the capacitor affects the

output ripple voltage. Please refer to the table below for

the names of products made by various manufacturers.

FOperation notes

(1) The output current needs to be reduced as the am-

bient temperature rises.

(2) Lead pins should be securely soldered. If common

pins are not securely connected, or pins which are con-

nected internally but which are not used are connected

to other pins, irregular voltages could be produced, caus-

ing breakdowns and damage.

(3) Excessive current and shorted loads

The excessive current limit is a drooping model. At 25_C,

if excessive current which exceeds the absolute maxi-

mum ratings is produced intermittently, or is produced

continuously for a total of one minute or longer, the prod-

uct is vulnerable to damage. If there is any danger of the

load being shorted or excessive current being produced,

always use a protective device such as a fuse.

(4) Avoid subjecting this product to strong impact.

(5) Regulations governing electrical products

342

As a stand-alone product, this product is not subject to

regulations governing electrical appliances. Please be

aware, therefore, that applications must be submitted for

sets and not for individual products.

(6) Insulation

This product is not insulated on the primary and second-

ary sides, and there is a danger of electrical shock if it is

touched.

(7) Connections with other devices

Devices using this product should not be connected to

other devices. If connected, insulation should be pro-

vided.

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