Wednesday, February 24, 2010

one transistor led flasher

one transistor led flasher


http://free-schematic.blogspot.com/2010/02/led-flasher-with-one-transistor.html

tl431 datasheet

tl431 datasheet

TL431/TL431A Programmable Shunt Regulator

Features

. Programmable Output Voltage to 36 Volts

. Low Dynamic Output Impedance 0.20 Typical

. Sink Current Capability of 1.0 to 100mA

. Equivalent Full-Range Temperature Coefficient of


50ppm/°C Typical
 
. Temperature Compensated For Operation Over Full Rated


Operating Temperature Range
 
. Low Output Noise Voltage
 
. Fast Turn-on Response
 
Description
 
The TL431/TL431Aare three-terminal adjustable regulator


series with a guaranteed thermal stability over applicable

temperature ranges. The output voltage may be set to any

value between VREF (approximately 2.5 volts) and 36 volts

with two external resistors These devices have a typical

dynamic output impedance of 0.2W Active output circuitry

provides a very sharp turn-on characteristic, making these

devices excel lent replacement for zener diodes in many

applications.
 
 
Internal Block Diagram
Test Circuits
 
download tl431 datasheet pdf

20W bridge amplifier for car radio used TDA7240A

20W bridge amplifier for car radio used TDA7240A


DESCRIPTION


The TDA7240A is a 20W bridge audio amplifier IC designed specially for car

radio applications.


Thanks to the low external part count and compactHeptawatt 7-pin power

package the TDA7240A

occupies little space on the printed circuit board.


download schematic diagram

str54041 datasheet

str54041 datasheet

Hybrid IC Voltage Regulator Module NPN Triple Diffused, for TV Switch Mode Power Supply

1 - features :
a . hyprid voltage regulator module  incorporated triple diffused planar transistir chips

b . transfer molded

c . for tv switch mode power supply

d . fixed output voltage

2 - equivalent circuit



1 - vout sense 
2 - base drive
3 - in put
4 - earth
5 - vo cont








download  str54041 datasheet  pdf

str50103 datasheet

str50103 datasheet

str50103 is a Voltage regulator


1- common
2- base drive
3- in put
4 - out put
5- vo control

download str50103 datasheet pdf

Tuesday, February 23, 2010

tda100 panasonic User Manual

tda100 panasonic User Manual

F.C.C. REQUIREMENTS AND RELEVANT


INFORMATION

1. Notification to the Telephone Company

This equipment complies with Part 68 of the FCC rules and the requirements adopted by the ACTA. On

the side of this equipment is a label that contains, among other information, a product identifier in the

format US: ACJMF03AKX-TDA100. If requested, this number must be provided to the telephone

company.

Installation must be performed by a qualified professional installer. If required, provide the telephone

company with the following technical information:

• Telephone numbers to which the system will be connected

• Make: Panasonic

• Model: KX-TDA100 and KX-TDA200

• Certification No.: found on the side of the unit

• Ringer Equivalence No.: 0.3A

• Facility Interface Code: 02LS2, 04DU9.BN/DN/1KN/1SN, METALLIC

• Service Order Code: 9.0F, 6.0P

• Required Network Interface Jack: RJ21X, RJ48C, RJ2HX

2. Ringer Equivalence Number (REN)

The REN is used to determine the number of devices that may be connected to a telephone line.

Excessive RENs on a telephone line may result in the devices not ringing in response to an incoming

call. In most, but not all areas, the sum of RENs should not exceed five (5.0). To be certain of the

number of devices that may be connected to a line, as determined by the total RENs, contact the local

telephone company. The REN for this product is part of the product identifier that has the format US:

ACJMF03AKX-TDA100. The digits represented by 03 are the REN without a decimal point (e.g., 03 is

a REN of 0.3). For earlier products, the REN is separately shown on the label.

3. Incidence of Harm to the Telephone Lines

If this equipment causes harm to the telephone network, the telephone company will notify you in

advance that temporary discontinuance of service may be required. But if advance notice isn't practical,

the telephone company will notify the customer as soon as possible. Also, you will be advised of your

right to file a complaint with the FCC if you believe it is necessary.

4. Changes in Telephone Company Communications Facilities, Equipment, Operations and

Procedures

The telephone company may make changes in its facilities, equipment, operations or procedures that

could affect the operation of the equipment. If this happens the telephone company will provide

advance notice in order for you to make necessary modifications to maintain uninterrupted service.

5. Trouble with this equipment

If trouble is experienced with this equipment, for repair or warranty information, please see the attached

warranty, which includes the Servicenter Directory. If the equipment is causing harm to the telephone

network, the telephone company may request that you disconnect the equipment until the problem is

resolved.

6. Connection to Party Line

Connection to party line service is subject to state tariffs. Contact the state public utility commission,

public service commission or corporation commission for information.
 
 
downloadKX-TDA100 panasonic User Manual

tda4605 datasheet

tda4605

CONTROL CIRCUIT FOR SWITCH MODE POWER SUPPLIES USING MOS  TRANSISTORS

DESCRIPTION


The IC TDA4605controls the MOS PowerTransistor and performs all necessary regulation and

monitoring functions in free running flyback converters.

Since good load regulation over a wide load range is attained, this IC is particularly suitable

for Consumer as well asIndustrial PowerSupplies.

Alternative source of theTDA4605 is alsoavail-

ablefrom SIEMENSS emiconductors Consumer ElectronicsA.G.

download tda4605 datasheet pdf