MSK4323_15 Datasheet, PDF (1/6 Pages) M.S. Kennedy Corporation – Self-Contained, Smart Lowside/Highside Drive Circuitry

MIL-PRF-38534 & 38535 CERTIFIED FACILITY
20 AMP, 100 VOLT MOSFET
SMART HIGH TEMP 3-PHASE
MM..SS..KKEENNNNEDEYDYCOCROPR. P.
MOTOR DRIVE HYBRID
4323
4707 Dey Road Liverpool, N.Y. 13088
[phone]
FEATURES:
Designed for High Temp Applications
100V, 20 Amp Capability
Low Thermal Resistance - Junction to Case - 3.0°C/W (Each MOSFET)
Self-Contained, Smart Lowside/Highside Drive Circuitry
Under-Voltage Lockout, Internal 2μS Deadtime
Capable of Switching Frequencies to 25KHz
Isolated Case Allows Direct Heat Sinking
Case Bolt-down Design Allows Superior Heat Dissipation
Contact MSK for MIL-PRF-38534 Qualification Status
DESCRIPTION:
The MSK 4323 is a 20 Amp, High Temp Smart 3 Phase Bridge with a 100 volt rating on the output switches. The
output switches are power MOSFETs with intrinsic fast-recovery diodes for the free-wheeling currents of motor
drives. This high temp smart power motor drive module is compatible with 5V CMOS or TTL logic levels. The internal
circuitry prevents simultaneous turn-on of the in-line half bridge transistors with a built-in 2μS deadtime to prevent
shoot-through. Undervoltage lockout shuts down the bridge when the supply voltage gets to a point of incomplete
turn-on of the output switches. The internal high-side boot strap power supply derived from the +15 volt supply
completely eliminates the need for 3 floating independent power supplies for the high-side drive. The circuit has been
tested to temperatures above 175°C and uses special high temperature construction processes.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE
OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE
1
PIN-OUT INFORMATION
1 VCC
2 AØHIN
3 BØHIN
4 CØHIN
5 AØLIN
6 FAULT
7 CØLIN
8 BØLIN
9 VSS
10 ITRIP
20 VBAØ
19 AØ
18 V+
17 VBBØ
16 N/C
15 BØ
14 VBCØ
13 N/C
12 CØ
11 ISENSE
8548-66 Rev. E 7/13