KA7905 DATASHEET PDF
KA A 1 Amp -5V Voltage Regulator. Part Number: KA Price: $ available for immediate number: KA Full datasheet: KA KA 3-Terminal 1A Negative Voltage Regulator. Features. Output Current in Excess of 1A Output Voltages of V Internal Thermal Overload Protection. KA ON Semiconductor / Fairchild Linear Voltage Regulators REGULATOR, – 5V, A, 4% datasheet, inventory & pricing.
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Values measured The comparison in this article is not totally objective. Please note the differences in internal sctructure.
So, we examined the datasheets more closely. There, they do clearly state that the output voltage is guaranteed in a certain load current range; however, there is NO warning, that a voltage four times higher than the nominal output can appear at the output pin.
So, dayasheet this possibility in mind when designing your own applications. The situation is similar with other stabilizers.
View ka7905 datasheet:
Dagasheet, according to our measuremets, you can get up to 20V at the output of a L without a load. The 79xx voltage regulators series made by ST have to be connected to a load consuming at least 5 mA.
We do our own development, too, and we do understand that it is not that easy to design and document something.
The ST stabilizer is clearly distinct. Some time ago, I used a pair of and to generate symmetrical reference voltage in my circuit.
The internal schematics of 79xx and 78xx are very different you can see both internal schematics in datasheets, which are included at the end of this article. Consumption no load Consumption 1k load LCV 1. Figure shows the dependencies of the output voltage on the input kw7905 for a L, TAS, KA; both with and without a 1k load.
Then, we have studied carefully the datasheets. Figure shows dependence of the output voltage on the input voltage for a L and a MC with no load, and with datasbeet. The table clearly indicates a distinctly lower consumption of the negative ST stabilizer. A similar internal schematic is there; however, the values of the components are legible.
If this is an intention to reduce internal consumption of the circuit to a minimum, at the expense of problems with output voltage with no load, it should have been mentioned in the datasheet. The company says, that they make compatible parts.
Nothing like that is there. PDF datasheet of a 79xx by National Semiconductors. Again, we do apologize to GM Electronic for releasing this information. Values shown were measured for a single sample; other samples as well as stabilizers by other manufacturers behaved similarly.
The rest of this article analyses the fact, that: As a supply, we have used a BS DC power supply and a transformer with one-way rectifier. As a dataeheet, I would like to say that HW server does not indend at all to ‘criticise at every cost’.
Values listed below were measured using a nF capacitor.
Voltage Regulator IC | Datasheet
However, dtasheet think it necessary to inform our readers about fundamental faults and errors of electronics components that can cost a lot of time. In most cases, only a single sample of a given type by a given manufacturer was available; exceptions are MC 3 samples measured and, of course, stabilizers by ST 5 samples of each type measured; samples purchased at different times in different stores.
Consumption no load Consumption 1k load LCV. The marginal current 4mA corresponds to xatasheet 2k load. Here, minimum load current is specified: If ST really does use such an internal structure, the problem is most likely caused by unsuitable dwtasheet of resistors around the 6. The whole thing worked about a year or so. Stabilizers by ST differ, beginning from a certain voltage. Of course, the output voltage may fluctuate; however, it can’t be four times the nominal output voltage.
Again, there was V. However, the fault does not occur for commonly used input voltages. May – 0: