Each top MOSFET driver is biased from the floating boot- strap capacitor CB, which normally recharges during each cycle through an external diode when the top MOSFET turns off. If the input voltage, VIN, decreases to a voltage close to VOUT, the loop may enter dropout and attempt to turn...
During normal operation, the external top MOSFET is turned on when the clock sets the RS latch, and is turned off when the main current comparator, ICMP, resets the RS latch. The peak inductor current at which ICMP trips and resets the latch is con- trolled by the voltage on the ITH ...
An internal voltage amplifier regu- lates the GATE pin voltage to maintain a 1.25V threshold at the FB pin. During this period of time, the power MOSFET is still on and continues to supply current to the load. This allows uninterrupted operation during short overvoltage transient events. When...
htsemi. com V:2.0 2022/12 20V N-Channel Enhancement Mode MOSFET PT2300 Symbol Parameter Condition Min. Static Electrical Characteristics @ TJ = 25°C (unless otherwise stated) V ( BR) DSS I DSS Drain- Source Breakdown Voltage Zero Gate Voltage Drain current VGS=0V ID=250μA VDS=20V,VGS...
The parameters that determine the minimum supply voltage include: C1 voltage, MOSFET threshold voltage, a series Schottky diode voltage drop, resistance of RSS and RIN, current in the VDD For more information www.analog.com Rev. F 13 LTC4366 APPLICATIONS INFORMATION pin, and finally the current...
SVHC Exceeds Threshold Yes Automotive No PPAP No Product Category Power MOSFET Configuration Single Process Technology HEXFET Channel Mode Enhancement Channel Type N Number of Elements per Chip 1 Maximum Drain Source Voltage (V) 100 Maximum Gate Source Voltage (V) ...
When the GATE voltage reaches the MOSFET threshold voltage, the MOSFET begins to turn on and the SOURCE voltage then follows the GATE voltage as it increases. When the MOSFET is turning on, it ramps inrush current up linearly at a dI/dt rate selected by capacitor CSS. Once the inrush ...
This pin connects to the internal power MOSFET switches. PGOOD1 (Pin 2): This open-drain output voltage is pulled to a logic low when VFB1 is below 0.54V (VOUT1 is below 90% of regulated level). RUN2 (Pin 3): Regulator 2 Enable Pin. Apply a voltage greater than VRUN(HIGH) to ...
Voltage Accuracy ■ Power Good Output Voltage Monitor ■ Phase-Lockable Fixed Frequency 250kHz to 550kHz ■ Latched Short-Circuit Shutdown (LTC3727 Only) ■ Dual N-Channel MOSFET Synchronous Drive ■ Wide VIN Range: 4V to 36V Operation ■ Very Low Dropout Operation: 99% Duty Cycle ■ ...
The INTVCC undervoltage (UV) threshold is 3.75V (typical), with 0.15V hysteresis, to ensure that the internal MOSFET has sufficient gate drive voltage before turning on. The logic circuitry within the LT3958 is also powered from the internal INTVCC supply. The INTVCC overvoltage threshold is ...