Electronic Components Datasheet Search |
|
L2917D14 Datasheet(PDF) 6 Page - Texas Instruments |
|
L2917D14 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 7 page LM2907, LM2917 FREQUENCY-TO-VOLTAGE CONVERTERS SLFS011A – MARCH 1986 – REVISED JULY 1993 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION R1 cannot be chosen independent of ripple because response time or the time it takes VO to stabilize at a new level increases as the size of C2 increases. A compromise between ripple, response time, and linearity must be chosen carefully. As a final consideration, the maximum attainable input frequency is determined by VCC, C1, and Icap (current through CAP1). fmax + Icap C1 V CC hertz • where: Icap is typically 200 µA, C1 is in farads, and VCC is in volts. zener regulator options (LM2917) For those applications in which an output voltage or current must be obtained independent of supply voltage variations, the LM2917 can be used. The most important factor in selecting a dropping resistor for the unregulated supply is that the frequency-to-voltage converter circuit and the operational amplifier alone require approximately 3 mA at the voltage level set by the zener diode. At low supply voltages, there must be some current flowing in the resistor above the 3-mA circuit current to operate the regulator. As an example, if the supply voltage varies between 9 V and 16 V, a resistance of 470 Ω minimizes the zener voltage variation to typically 160 mV. If the resistance goes under 400 Ω or above 600 Ω, the zener variation quickly rises above 200 mV for the same input variation. Charge Pump C1 TACH + R1 CAP1 IN – 10 k Ω VCC C2 CAPO/IN + Emitter/Follower Output E + – Figure 2. Minimum-Component Tachometer |
Similar Part No. - L2917D14 |
|
Similar Description - L2917D14 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |