description. This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card. 78L12 Positive-voltage Regulators. 3-Terminal Regulators Output Current mA No External Components Internal Thermal-Overload Protection Internal. TO CJ78L CJ78LTA. MARKING. Solid dot Green molding compound device,. XXX Code. CJ78L12 Device code if none,the normal device. CJ. 78L
|Published (Last):||5 April 2010|
|PDF File Size:||8.13 Mb|
|ePub File Size:||4.75 Mb|
|Price:||Free* [*Free Regsitration Required]|
We must also check allowed voltage of capacitors. Schematics diagram 78l112 in Eagle 6 format Assembling First we check if all holes are correctly drilled. Board is designed single-sided.
Dual power supply
It offers a datasheeg amount of data sheet, You can free PDF files download. We begin with resistors, small capacitors, leds, regulators, fuses and rectifier. V VV to 20 V I. Preview 2 pages www. I tried to design them symmetrically.
No abstract text available Text: Thermal effects must be taken into account separately. Please check with an NEC Electronics sales representative for availability and additionalchange without notice. Therefore it’s best to datashewt the input voltage just above the minimum to prevent the regulator to become overheated. When used as a replacement for a zener diode-resistor combination, an effective improvement in output impedance can be obtained, together with lower bias current.
The maximum dropout voltage Vd is 2. They are like a variable series resistor between input and output, causing a voltage drop across the regulator.
Component view Printed circuit boards Board is designed single-sided.
78L12 Datasheet PDF – Wing Shing Computer Components
Datadheet of these regulators can deliver up to mA of output current. I built stereo width controller and i required simple dual power supply for him. It doesn’t matter on the assembling order. All linear regulators have a minimum dropout voltageor difference. We can connect power cord directly to the X1 connector or via power switch on the chassis.
These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. An LDO might have a dropout voltage of 0.
78L12 Datasheet(PDF) – Wing Shing Computer Components
Please check with an NEC Electronics sales representative. All parameters are specified under certain conditions, and for the output voltage we can see that the condition is that the input voltage is minimum A control element will vary the resistance in practice a transistor so that the output voltage will remain constant regardless of input voltage and load.
Allied Electronics DigiKey Electronics. Next are small filter capacitors and also signaling LEDs connected via resistors.
Please check with an NEC. D Output Current up to mA. We can also use 2 pin connectors for LED connecting. On page 6 of the datasheet, the maximum dropout voltage Vd is listed as 2.
Please check with an NEC Electronics sales representative forwithout notice. Output voltages are connected to 3 pin connector.
The datasheet does say how much it needs, but you may have to look for it. NEC Electronics assumes no responsibility for any errors that may appear in this document.
Please check with an NEC Electronics sales. The current to your load flows through the regulator and is the same current as will be drawn from the input voltage. On the secondary side of transformer are connected two fuses mA and after them is bridge rectifier. This is a snapshot of page 8: So you won’t find a parameter “minimum input voltage”, but it is mentioned as a condition for proper operation within certain limits.
Please check with local NEC ,: Linear regulators are different. So the 20V delivers 20W, while the load only consumes 12W. One of these regulators can deliver up to mA. Almost all components are usually available.
Codesweather resistant. Moreover, programming services for NEC Electronics’ flash microcontrollers are available from programming. From what i understand then from your answer In addition, they can be used with power-pass. Please check with an NEC Electronics sales representative for availability andchange without notice.
Peter Mortensen 1, 3 14