the size and cost of the power supply can be reduced. Higher bandwidth can also improve load transient response. However, higher switching frequency also means higher AC-related power loss, which requires larger board space or a heat sink to limit the thermal stress. Currently...
• Once VGS has fallen below the ON threshold, the transistor turns OFF and the drain voltage starts raising, with a slope controlled by the pull-up network (can be either a transistor mounted on the high-side or simply a resistor). During this phase, the CGS and CGD+CM ...
Loop oscillation frequency increases to keep up with the load's sink current demand. Now, the VC pin waveform (Trace D) begins to take on a filtered ap- pearance. This is due to R1-C1's 10ms time constant. If the load continues to increase, loop oscillation frequency will also ...
Beside power loop inductance, special attention must be paid to minimizing any capacitance connected from the high-side gate to ground or any other fixed potential, as such a capacitance would directly add to the gate-drain capacitance. Only a few pF could significantly inc...
It provides power supply for the floating high-side driver. Connect with 0.1 µF to PHASE. See Figure 1. Output inductor connection. The pins are connected to the embedded MOSFETs (high-side source and low-side drain). Connect directly to output inductor. See Figure 1. Pulse-skip and ...
The MOTIX™ 6EDL7141 can control the slew rate of the driving signal to control the rise and fall slew rates of the drain-to-source voltage by adjusting the gate drive sink and source currents during different time segments in the switch-on and ...
16. Dur- ing T2f , the Cgs1 capacitance is discharged from Vpl OFF voltage to Vth , while the voltage at the drain side of the Cgd1 capacitance charges from Vin to Vp , and the voltage at the gate side of Cgd1 discharges from Vpl OFF to Vth . Therefore, the change in voltage ...
The HS MOSFET drain and LS MOSFET drain are connected together and to the LX pin (see Figure 2). The L7983 embodies an anti-shoot-through and adaptive deadtime control to minimize low-side body diode conduction time and consequently reduce power losses. This feature is implemented by ...
current Io sink Sink output current Ib Source bias current DC open loop gain gm Transconductance SYNC FUNCTION High Input Voltage Low Input Voltage Slave Sink Current Master Output Amplitude Output Pulse Width REFERENCE SECTION Reference Voltage Line Regulation Load Regulation Short Circuit Current Note:...
wave B with an opposite phase and the ground potential, a constant current circuit 14B for source or charge connected between the power supply voltage terminal VDD and the node NB, and a constant current circuit 16B for sink or discharge connected between the node NB and the ground potential....