Difference between revisions of "MOSFET DRIVER"

Latest revision as of 16:51, 11 September 2015

• 104-050 MICREL MIC4452YN DIP8 12A
• 104-060 MICREL MIC4452ZT TO220-5 12A
• 104-070 MICROCHIP TC4452VPA DIP8 12A

• Simple_high_voltage_inverter

• A4933 Mosfet driver Read the functional description
• LM9061
• LM5112
• LM5111 digikey Dual 5A SOIC8 with thermal pad
• TLP350
• INFINEON ELICEDRIVER
• TD350

Active Miller clamp
A Miller clamp allows the control of the Miller current during a high dV/dt situation and can 
eliminate the need for a negative supply voltage.
During turn-off, the gate voltage is monitored and the clamp output is activated when gate 
voltage goes below 2 V (relative to GND). The clamp voltage is VL+3 V max for a Miller 
current up to 500 mA. The clamp is disabled when the IN input is triggered again.

• AVAGO ACPL-332J

A Miller clamp allows the control of the Miller current
during a high dV/dt situation and can eliminate the use
of a negative supply voltage in most of the applications.
During turn-of , the gate voltage is monitored and the
clamp output is activated when gate voltage goes below
2V (relative to VEE). The clamp voltage is VOL+2.5V typ
for a Miller current up to 1100mA. The clamp is disabled
when the LED input is triggered again.

• IR AN978

As an added safety margin a resistor diode network can be added to the gate, as shown with 
dashed lines in Figure 28A. The purpose of this network is to further delay the turn-on, without 
affecting the turn-off, thereby inserting some additional dead-time.   The resistor-diode network is 
also useful in reducing the peak of the current spike during the reverse recovery time. As 
explained in Ref. 2, this has an impact on power  losses, as well as dv/dt and EMI. Figures 28A & 
28B show the waveforms taken from a test circuit  laid out as shown in Figure 10. Operation at 
500 kHz with the IRF830 HEXFET did not present any problem nor cause any noticeable heating 
of the IR2110.

Bipolar Totem Pole Drive

ZETEX

• ZETEX DN80 Bipolar transistors for MOSFET gate driving applications

300px

• Hard to find but good price, only Arrow, Rutronik
• 4A output from 1mA input, 8A output from 2mA input

• ZETEX ZXGD3006E6

ZXGD3006E6 is a 40V Gate Driver for switching IGBTs and SiC MOSFETs. 
It can transfer up to 10A peak source/sink current into the gate 
for effective charging and discharging of a large capacitive load

• EEtimes article MOSFET or bipolar, which should you use? (Zetex)

NXP

• NXP Mosfet Driver transistors
• NXP TRANSISTOR SELECTION GUIDE
• pmd2001 (PEAK CURRENT 1 A ...only), AT MOUSER

Yang

• M.D. Yang: Thoughts on fast gate drive

• Suggesting NPN-PNP pair (Bipolar Totem-Pole) with third speed-up NPN

University of Newcastle, AustraliA

• AN ISOLATED MOSFET GATE DRIVER PDF