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PDF MSK4304RH Data sheet ( Hoja de datos )
| Número de pieza | MSK4304RH | |
| Descripción | RAD HARD MOSFET POWER 3-PHASE MOTOR DRIVE HYBRID | |
| Fabricantes | MSK | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MSK4304RH (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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MIL-PRF-38534 AND 38535 CERTIFIED FACILITY
10 AMP, 100 VOLT
RAD HARD MOSFET
POWER 3-PHASE
MM..SS..KKEENNNNEDEYDYCOCROPR. P. MOTOR DRIVE HYBRID
FEATURES:
100V, 10 Amp Capability
Ultra Low Thermal Resistance - Junction to Case - 2.5°C/W (Each MOSFET)
Self-Contained, Lowside/Highside Drive Circuitry
Bootstrap High-Side Supplies
Under-Voltage Lockout
Capable of Switching Frequencies to 25KHz
Isolated Case Allows Direct Heat Sinking
Bolt-down Design Allows Superior Heat Dissipation
Total Dose Hardened to 300 Krads(Si) (Method 1019.7 Condition A)
4304RH
DESCRIPTION:
The MSK4304RH is a radiation hardened 10 Amp, 3 Phase Bridge Power Motor Drive Hybrid with a 100 volt maximum
rating on the output switches. The internal components have been selected to provide total dose tolerance for military and
space applications. The output switches are MOSFETs. This new power motor drive hybrid is 5.0 volt input logic compat-
ible. Under-voltage lockout prevents the bridge from starting before the supply voltage rises high enough for complete turn-
on of the output switches. The internal high-side bootstrap power supply derived from the +VB supply completely elimi-
nates the need for 3 floating independent power supplies.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
TYPICAL APPLICATIONSPIN-OUT INFORMATION
3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE
OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE
1
PIN-OUT INFORMATION
1 H INA
20 V+
2 L INA
19 N/C
3 +VCC
18 AV-
4 H INB
17 AØ
5 L INB
16 N/C
6 COM
15 BV-
7 +VDD
14 BØ
8 +VB
13 N/C
9 H INC
12 CV-
10 L INC
11 CØ
CASE=ISOLATED
8548-35 Rev. J 8/14
1 page  
TYPICAL SYSTEM OPERATION
The MSK4304RH is designed to be used with a +28 volt high voltage bus, +15 volt low power bus and +5 volt logic
signals. Proper derating should be applied when designing the MSK4304RH into a system. High frequency layout tech-
niques with ground planes on a printed circuit board is the only method that should be used for circuit construction. This will
prevent pulse jitter caused by excessive noise pickup on the current sense signal or the error amp signal.
Ground planes for the lower power circuitry and the high power circuitry should be kept separate. The connection
between the bottom of the current sense resistor, COM pin and the high power ground, AV-, BV- and CV- pins are
connected at this point. This is a critical path and high currents should not be flowing between the current sense and
COM. Inductance in this path should be kept to a minimum. An RC filter will filter out the current spikes and keep the
detected noise for those circuits down to a minimum.
In the system shown a PWM pulse by pulse current limit scheme controlled by the motor controller is implemented.
When controlling the motor speed by the PWM method, it is required that the low side switches be PWM pulsed to
ensure sufficient bootstrap capacitor charge to power the high side switch drives. The higher the PWM speed the
higher the current load on the drive supply.
5 8548-35 Rev. J 8/14
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MSK4304RH.PDF ] | |
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