input, output voltages and switching frequency, the peak-to-peak inductor ripple current is determined by the inductor value: ( ( ) ) ∆IL(CCM) = VIN • D L•f = L • VIN • | VOUT | +VD f • VIN+ | VOUT | +VD where VD is the diode forward conduction voltage. In...
Choose the Zener diode breakdown voltage to balance power loss and switch voltage protection. The best compromise is to choose the largest voltage breakdown with enough margin. Use Equation 14 to make the proper choice. VZENER(MAX) = VDS(MAX) − VIN(MAX) (14) The power loss in the DZ...
Case 2: –5V < VCM < V+ For common mode inputs which transition or are set below the supply voltage, diode D1 will turn on and will provide a source of current through R+S and R–S to bias the inputs of transconductance amplifier GIN at least 2.25V above GND. The transition is ...
the time the N-channel MOSFET is on every switch cycle, and is determined by the input and output voltages: DC = ⎛ ⎝⎜ VOUT + VIN – VDS VD + VD ⎞ ⎠⎟ where VD is the forward drop of the catch diode (~0.4V) and VDS is the typical MOSFET voltage drop (~0.1V)....
TYPICAL PERFORMANCE CURVES MAXIMUM RATINGS All Ratings: T C = 25°C unless otherwise speci fi ed. STATIC ELECTRICAL CHARACTERISTICS Characteristic / Test Conditions Collector-Emitter Breakdown Voltage (V GE = 0V, I C = 4mA)Gate Threshold Voltage (V CE = V GE , I C = ...
Current rating of the diode must meet the root mean square of the peak current and output average current multiplication as following ID(RMS) IOUT IPEAK The diode' s reverse breakdown voltage should be larger than the output voltage. Layout Consideration For best performance of the ...
Freewheeling Diode Choose a diode with a maximum reverse voltage rating that exceeds the maximum input voltage, and a current rating that exceeds the output current. The reverse recovery of the freewheeling diode can affect the efficiency and circuit operation. Select an ultra-fast diode, such ...
TYPICAL APPLICATION NEXT 12-CELL PACK ABOVE V+ 12-CELL BATTERY STRING MUX LTC6802-2 DIE TEMP REGISTERS AND CONTROL SERIAL DATA 4-BIT ADDRESS 12-BIT Δ∑ ADC NEXT 12-CELL PACK BELOW V– 100k NTC EXTERNAL TEMP VOLTAGE REFERENCE 68022 TA01a 100k Measurement Error Over Extended Temperature ...
maximum continuous Drain current ID, the maximum Source current (that is, body diode) IS, the maximum drain-to-source voltage VDS(MAX), the gate-to-source threshold voltage VGS(TH), the drain-to-source reverse breakdown voltage V(BR)DSS, and the drain-to-source on resistance RDS(ON). ...
Q2 in Figure 2 performs this function by clamping the VC pin to a voltage less than its normal 2.1V upper clamp level. This foldback current limit greatly reduces power dissipation in the IC, diode and inductor during short-circuit conditions. External syn- chronization is also disabled to ...