www.maximintegrated.com Maxim Integrated │ 17 MAX16816 Programmable Switch-Mode LED Driver with Analog-Controlled PWM Dimming Use the following formula to calculate voltage (VDIM) necessary for a given output current duty cycle (D): VDIM = (D x 2.6) + 0.2V where VDIM is the voltage ...
After determining the allowable package dissipation, calculate the maximum output cur- rent (IOUT_MAX) using the following formula: I OUT _MAX = PDISS − PLOSS(BST) VIN − VOUT where PDISS is the allowable package power dissipation and PLOSS(BST) is the boost converter power loss. P...
(3.23) The opposite assumption, that Ξ≤ 0, gives the same result but with the roles of λ± interchanged, so we can use the above formula for λ+ as the formula for the not- necessarily-zero index for either sign of Ξ. However, consideration of purely magnetic backgrounds shows that...
the formula t = 5.06 x 106 x C with t in seconds and C in SWT WD SWT WD Farads. Extend the basic watchdog timeout period by using the WDS input. Connect SWT to ground to disable the watchdog timer function. ± ± ± SWT MAX675±/MAX6753: Connect a capacitor ...
lowing formula: UVLO(TH) R1 V 1 1.85V R2 =+× The minimum recommended VUVLO(TH) is 6.5V, 7.5V, and 13V for the output voltages of 3.3V, 5V, and 12V, respectively. The recommended value for R2 is less than 1MΩ. If the external UVLO threshold-sett...
reset threshold voltage, using the following formula: On power-up, once V reaches 1V, RESET is guaran- CC teed to be a logic-low. For information about applica- tions where V is less than 1V, see the Ensuring a ⎛ ⎞ VRST R1= R2 × −1 Ω ( ) CC ⎜...
Calculate R1 in Figure 1 by using the following formula: ⎛V ⎞ R1 = ⎜ ON − 1⎟ × R2 ⎝ VUVLO ⎠ where VUVLO is the ON/OFF’s 1.23V rising threshold, and VON is the desired input startup voltage. Choose an R2 value in the 100kΩ range. The UVLO circuits keep ...
Similar informat can be found with a google search, such as "von mises stress shear failure criteria" http://www.efunda.com/formulae/solid_mechanics/failure_criteria/failure_criteria_ductile.cfm http://courses.washington.edu/me354a/strength_theories.pdf http://www.mech.uwa.edu.au/DANotes/SS...
Calculate R1 in Figure 1 by using the following formula: ⎛V ⎞ R1 = ⎜ ON − 1⎟ × R2 ⎝ VUVLO ⎠ where VUVLO is the ON/OFF’s 1.23V rising threshold, and VON is the desired input startup voltage. Choose an R2 value in the 100kΩ range. The UVLO circuits keep ...
(— stress range or reduced stress range for fatigue calculation; ((e— equivalent stress rage of variable amplitude fatigue; [((] — allowable stress range of fatigue; — critical stresses of plate under individual action of bending stress, local compressive stress and shear stress receptively;...