STW7NC90Z ,N-CHANNEL 900V 1.55 OHM 6A TO-247 ZENER-PROTECTED POWERMESH III MOSFETELECTRICAL CHARACTERISTICS (CONTINUED)SWITCHING ON (RESISTIVE LOAD)Symbol Parameter Test Conditions ..
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STW7NC90Z
N-CHANNEL 900V 1.55 OHM 6A TO-247 ZENER-PROTECTED POWERMESH III MOSFET
1/8May 2001
STW7NC90ZN-CHANNEL 900V - 1.55Ω - 6A TO-247
Zener-Protected PowerMESH™III MOSFET TYPICAL RDS(on) = 1.55Ω EXTREMELY HIGH dv/dt CAPABILITY GATE-TO-SOURCE ZENER DIODES 100% AVALANCHE TESTED VERY LOW INTRINSIC CAPACITANCES GATE CHARGE MINIMIZED
DESCRIPTIONThe third generation of MESH OVERLAY™ Power
MOSFETs for very high voltage exhibits unsur-
passed on-resistance per unit area while integrating
back-to-back Zener diodes between gate and
source. Such arrangement gives extra ESD capabil-
ity with higher ruggedness performance as request-
ed by a large variety of single-switch applications.
APPLICATIONS SINGLE-ENDED SMPS IN MONITORS,
COMPUTER AND INDUSTRIAL APPLICATION WELDING EQUIPMENT
ABSOLUTE MAXIMUM RATINGS(•)Pulse width limited by safe operating area
(1)ISD ≤6A, di/dt ≤100A/μs, VDD ≤ V(BR)DSS, Tj ≤ TJMAX.
(*) Limited by maximum temperature allowed
STW7NC90Z
THERMAL DATA
AVALANCHE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (TCASE = 25 °C UNLESS OTHERWISE SPECIFIED)OFF (1)
DYNAMIC
3/8
STW7NC90Z
ELECTRICAL CHARACTERISTICS (CONTINUED)SWITCHING ON (RESISTIVE LOAD)
SWITCHING OFF (INDUCTIVE LOAD)
SOURCE DRAIN DIODE
GATE-SOURCE ZENER DIODE
Note:1. Pulsed: Pulse duration = 300 μs, duty cycle 1.5 %. Pulse width limited by safe operating area. ΔVBV = αT (25°-T) BVGSO(25°)
PROTECTION FEATURES OF GATE-TO-SOURCE ZENER DIODESThe built-in back-to-back Zener diodes have specifically been designed to enhance not only the device’s
ESD capability, but also to make them safely absorb possible voltage transients that may occasionally be
applied from gate to souce. In this respect the 25V Zener voltage is appropiate to achieve an efficient and
cost-effective intervention to protect the device’s integrity. These integrated Zener diodes thus avoid the
usage of external components.
STW7NC90Z
Thermal ImpedanceSafe Operating Area
Output Characteristics
Static Drain-source On ResistanceTransconductance
5/8
STW7NC90Z
Normalized Gate Threshold Voltage vs Temp. Normalized On Resistance vs Temperature
Gate Charge vs Gate-source Voltage Capacitance Variations
Source-drain Diode Forward Characteristics
STW7NC90Z
Fig. 5: Test Circuit For Inductive Load Switching
Fig. 4: Gate Charge test Circuit
Fig. 3: Switching Times Test Circuit For Resistive Load
