ACT datasheet, ACT circuit, ACT data sheet: ACTIVE-SEMI – Wide Input 2A Step Down Converter,alldatasheet, datasheet, Datasheet search site. ACT Datasheet PDF Download – Wide Input 2A Step Down Converter, ACT data sheet. Active-Semi ACT datasheet, Wide Input 2A Step Down Converter (1-page), ACT datasheet, ACT pdf, ACT datasheet pdf, ACT pinouts.
|Published (Last):||15 January 2013|
|PDF File Size:||12.75 Mb|
|ePub File Size:||6.84 Mb|
|Price:||Free* [*Free Regsitration Required]|
If the output capacitor’s ESR is high enough to cause a zero at lower than 4 times the crossover frequency, an additional compensation capacitor CCOMP2 is required.
Voltage drop in SMPS output (ACT)
This inductor current has a ripple that is dependent on the inductance value: With the SW side of the inductor now connected to IN, the inductor current ramps up to store energy in the magnetic field.
The voltage at this pin is regulated to 1. Connect this pin to the switching end of the inductor. Output voltage is discharged when the IC is off.
For other inquiries, please send to: Equating complex number interms of the other 6. G EA The second pole P2 is the output pole: I know, the recommendation for a “good PCB layout” sounds so simple, but I know it isn’t. The inductor current level is measured by the Current Sense Amplifier and added to the Oscillator ramp signal.
Output Voltage Setting Input Capacitor The input capacitor needs to be carefully selected to maintain sufficiently low ripple at the supply datasheef of the converter.
We are talking about a well designed PCB layout? Make sure that this peak inductor current is less that the 3A current limit.
Originally Posted by d Finally, select the inductor core size so that it does not saturate at 3A. Connect this pin to the switching end of the inductor. Darasheet the case of ceramic output capacitors, RESR is very small and does not contribute to the ripple. Since large current flows in and out of this capacitor during switching, its ESR also affects efficiency.
How reliable is it? For other inquiries, please send to: Bypass this pin to G with a low ESR capacitor.
It should be small that the reader can go through it within minutes and easily find the informations CMOS Technology file 1. For more information on this and other products, contact sales micro-bridge.
I use 22uH inductor and 22uF ceramic resistor. Digital multimeter appears to have measured voltages lower than expected. The inductor current level is measured by the Current Sense Amplifier and added to the Oscillator ramp ddatasheet. The output ripple voltage is: Bypass this pin to G with a low ESR capacitor.
ACT Datasheet PDF –
This state continues until the cycle starts again. Heat sinks, Part 2: There is a problem when writing a datasheet. I’ve tried lots of things but datzsheet eliminating problem. Output Voltage Setting Figure 3 shows the connections for setting the output voltage.
Part and Inventory Search. The trade off for high inductance value is the increase in inductor core size and series resistance, and the reduction in current handling capability. The input capacitance needs to be higher than 10?
Breadboard gives no meaningful results. The time now is The Schottky diode must have current rating higher than the maximum output current and a reverse voltage rating higher than the maximum input voltage.
The Oscillator normally switches at kHz. The SP-Cap is based on aluminum electrolytic capacitor technology, but uses a solid polymer electrolyte and has very stable capacitance characteristics in both operating temperature and frequency compared to ceramic, polymer, and low ESR tantalum capacitors.