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Charging status output pin (CSO) The charge status output pin turns ON by Nch open drain output during trickle charging and main charging, and turns OFF after charging is completed.instead he's just pulled it up to Vin with 100k, which given its an open drain is just a waste of a resistor - unless there is a test point there so the resistor just facilitates sampling CSO. Why the designer didn't use the CSO output to drive the LED I don't know. There is still a chance the battery will continue charging, but its less likely. (which therefore gives 24.66mA) and Ifin = 0.1Ichg = 2.5mA approx. Its not clear why you'd want this to work like that, or what the signal LED_CTRL is meant to do.Īccording to the datasheet R29 (on the charger chip) and charge current are related by R = 351 Ichg^-1,11 = 351. And that MOSFET is a high-current device with a very small linear region so the whole thinking is a bit suspect. I got the feeling the original intent was to control the LED current by fixing the Vgs and therefore adjusting the constant current, but of course it doesn't really work like that and constant current source followers anyway only work in a very narrow linear region of MOSFET operation. I read the comment on the 1Mohm differently. If you have the curves for the specific LED Vf v If and the MOSFET's Id v Vgs you could get an indication. But how close to reality that is will only be known when you have the specific components on a breadboard. For a red LED say that's probably OK.Ĭalculating that is tricky, the simulation uses some basic physics for MOSFET Id v Vgs and LED Vf v If. Of course if Vf is close to the supply rail of 3.8v there may not be enough voltage for even that equality to hold. The device ends up in equilibrium where the MOSFET is turned on just enough to maintain a current in the LED where Vgs - Vf ~= Vth

The MOSFET turns on when Vgs > Vth, but as soon as current flows in the LED the voltage at the source falls from 3.8v due to the Vf of the LED reducing the MOSFETs Vgs. If what you intended was to simply switch the led on/off the led needs to be on the drain (resistor) side of the MOSFET. If you have the curves for the specific LED Vf v If and the MOSFET's Ids v Vgs you could get an indication. For a red LED say that's probably OK, but a white LED would be a different matter.Ĭalculating the resultant Ids or If is tricky, the simulation uses some basic physics for MOSFET Ids v Vgs and LED Vf v If.

The device ends up in equilibrium where the MOSFET is turned on just enough to maintain a current in the LED where Vgs - Vf ~= Vth, but Vf of the LED is a function of If and Ids of the MOSFET is a function of Vgs. The MOSFET here is turned on permanently by the 1Mohm resistor taking the gate -ve wrt to the source but. R = (Vs - Vf) /If calculation works, giving 9mA for a Vf of 2v. To read this article on click here.If what you intended was to simply switch the led on/off the led needs to be on the drain (resistor) side of the MOSFET, then your normal

MOS VS SCROLL REVERSER FREE

The Mosaic Company (MOS) : Free Stock Analysis Report

MOS VS SCROLL REVERSER DOWNLOAD

Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. By comparison, NTR has a P/B of 1.54.īased on these metrics and many more, MOS holds a Value grade of A, while NTR has a Value grade of C.īoth MOS and NTR are impressive stocks with solid earnings outlooks, but based on these valuation figures, we feel that MOS is the superior value option right now. The P/B is a method of comparing a stock's market value to its book value, which is defined as total assets minus total liabilities. NTR currently has a PEG ratio of 1.64.Īnother notable valuation metric for MOS is its P/B ratio of 1.14. This figure is similar to the commonly-used P/E ratio, with the PEG ratio also factoring in a company's expected earnings growth rate. We also note that MOS has a PEG ratio of 0.93. MOS currently has a forward P/E ratio of 6.48, while NTR has a forward P/E of 13.11. Our Value category grades stocks based on a number of key metrics, including the tried-and-true P/E ratio, the P/S ratio, earnings yield, and cash flow per share, as well as a variety of other fundamentals that value investors frequently use. Value investors are also interested in a number of tried-and-true valuation metrics that help show when a company is undervalued at its current share price levels.

Mos vs scroll reverser