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10 AMP, 55V, 3 PHASE
DESCRIPTION: The MSK4310 is a complete 3 Phase Brushless Motor Speed Controller in an electrically isolated hermetic package. The hybrid is capable of 10 amps of output current and 55 volts of DC bus voltage. Included is all of the bridge drive circuitry, hall sensing circuitry and commutation circuitry. Also included is a user programable current limit circuit and a tachometer circuit for closed loop operation. The MSK4310 has good thermal conductivity of the output switches due to isolated substrate/package design that allows direct heat sinking of the hybrid without insulators. FEATURES:
55 Volt Motor Supply Voltage
10 Amp Output Switch Capability
Shoot-Through/Cross Conduction Protection Hall Sensing and Commutation Circuitry on Board User Programable Current Limit Tach Out-Closed Loop Control Available With 3 Lead Configurations Contact MSK for MIL-PRF-38534 Qualification Status TYPICAL APPLICATIONS Fan/Blower Speed Control Azimuth/Elevation Antenna Control Optical Tracking Control Robot Velocity Control MIL-PRF-38534 AND 38535 CERTIFIED FACILITY PIN-OUT INFORMATION +15V INPUT -15V INPUT TACH OUT REF OUT TACH RC HALL A HALL B HALL C SPEED - COMMAND SPEED + COMMAND CØ BØ AØ GND BRAKE E/A OUT -E/A CURRENT LIMIT ADJUST SIGNAL GND 8548-72 Rev. F 12/14
Thermal Resistance (@ 125°C) Storage Temperature Range Lead Temperature Range (10 Seconds) Case Operating Temperature MSK4310 MSK4310H Junction Temperature +55V ±15VIN +V REF 10A 15A +16V -16V High Voltage Supply Speed Command (+,-) Hall A,B,C,Brake Continuous Output Current Peak Output Current +15 Volt Input Voltage -15 Volt Input Voltage ABSOLUTE MAXIMUM RATINGS V IN IOUT IpK +15V IN -15V IN 4.8°C/W -65°C to +150°C +300°C -40°C to +85°C -55°C to +125°C +150°C OJC TST TLD TC TJ ○○○ 5,6 2,3 2,3 2,3 1,2,3 PWM POWER SUPPLY REQUIREMENTS HALL INPUTS VIL VIH ANALOG SECTION Speed Command Input Range Speed Command Input Range Speed Command Input Current REFERENCE OUTPUT VOLTAGE ERROR AMP Input Offset Voltage Input Offset Current Input Bias Current Input Common Mode Voltage Range Open-Loop Voltage Gain Input Common Mode Rejection Ratio Power Supply Rejection Ratio OUTPUT SECTION Voltage Drop Across Bridge (1 Upper & 1 Lower) Voltage Drop Across Bridge (1 Upper & 1 Lower) Leakage Current Diode VSD trr Dead Time TACH OUT Output Voltage High State Output Voltage Low State Output Pulse Width CURRENT LIMIT Current Limit E/A DC Gain=1, Positive Command E/A DC Gain=1, Negative Command V IN =5V VO=3V, R L= 15K
10 AMPS
10 AMPS @ 150°C Junction
All switches off, V+=44V, 150°C Junction I Source = 5mA I Sink = 10mA R/C=20K/0.01uF Current Limit Adjust Pin=Open ELECTRICAL SPECIFICATIONS Parameter Units MSK4310 Test Conditions KHz KHz mA mA mA mA VOLTS VOLTS VOLTS VOLTS mA VOLTS VOLTS mV nA nA V db db db VOLTS VOLTS µA VOLTS nSec µSec V V µSec Amps Min. Typ. Max. MSK4310H Min. Typ. Max. Group A Subgroup 3.0 1.2 -1.2 5.9 5.82 3.60 150 0.4 6.24 0.4 8.0 -46 105 0.8 1.6 3.95 0.25 200 0.8 4.5 -4.5 1.5 6.5 6.57 500 -1000 V REF 1.92 750 1.6 4.20 0.50 250 1.60 3.0 1.2 -1.2 5.82 3.60 150 0.3 6.24 0.4 8.0 -46 105 0.8 1.6 3.95 0.25 200 0.8 4.5 -4.5 1.5 6.57 500 -1000 V REF 1.92 750 1.6 4.20 0.50 250 1.70 3 3 Clock Frequency NOTES: @ 1mA VIND +15 Volt Input Current -15 Volt Input Current Reference Voltage 8548-72 Rev. F 12/14 ±15V INPUT=±15V, V+=28V, BRAKE=GND unless otherwise specified. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial devices shall be tested to subgroups 1 and 4 unless otherwise specified. Military grade devices ("H" Suffix) shall be 100% tested to Subgroups 1, 2, 3 and 4. Subgroups 5 and 6 testing available upon request. Subgroup 1, 4 T A = TC = +25°C 2, 5 TA = TC = +125°C 3, 6 TA = TC = -55°C Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle. When applying power to the device, apply the low voltage followed by the high voltage or alternatively,apply both at the same t ime. Do not apply high voltage without low voltage present. Internal solder reflow temperature is 180°C, do not exceed.
V+ - is the power connection from the hybrid to the bus. The external wiring to the pin should be sized according to the RMS current required by the motor. This pin should be bypassed by a high quality mono- lithic ceramic capacitor for high frequencies and enough bulk capacitance to keep the V+ power supply from drooping. AØ OUT, BØ OUT, CØ OUT-are the connections to the motor phase windings from the bridge output. The wir- ing to these pins should be sized according to the mo- tor current requirements. There are no internal short circuit protection provisions for these output pins in the hybrid. Shorts to V+ or ground from these pins must be avoided or the bridge will be destroyed. GND- is the power return connection from the hybrid to the bus. All ground returns internal to the hybrid connect to this point in a star configuration. All exter- nal ground connections to this point should be made in a similar fashion. The V+ capacitors should be returned to this pin as close as possible. Wire sizing to this pin connection should be made according to the required current. SIG GND - is the ground pin that connects to the ground plane for all low power circuitry inside the device. +15 V INPUT -is the pin for applying +15 volts to run the low power control circuitry inside the hybbrid. This pin should be bypassed to the signal ground pin using a high quality 10 μF tantalum capacitor and a 0.1 μF ceramic capacitor as close to these pins as possible. -15 V INPUT - is the pin for applying -15 volts to run the low power control circuitry inside the hybrid. This pin should be bypassed to the signal ground pin using a high quality 10 μF tantalum capacitor and a 0.1 μF ceramic capacitor as close to these pins as possible. BRAKE - is the pin for commanding the output bridge into a motor brake mode. When this pin is taken low, normal operation of the hybrid proceeds. When this pin is taken high, the three high side switches in the bridge turn off and the three lowside switches turn fully on. This will cause rapid deceleration of the motor and will cease motor operation until taken low again. The pin left open is internally pulled high. HALL A, B & C - are the hall input pins from the hall devices in the motor. These pins are internally pulled up to 6.25 volts. The halls reflect a 120/240 degree commutation scheme. TACH RC - is used to set the tach out pulse width. This is done by connecting a resistor from this pin to the REF OUT pin and a capacitor from the pin to the signal ground. Selection of these components is based on the desired maximum motor speed. (See TACH RC component selection) TACH OUT - is connected to the -E/A pin through a resistor when using the speed controller in a closed loop configuration.. -E/A - is the error amp inverting input connection. It is brought out to allow various loop compensation cir- cuits to be connected between this and E/A out. E/A OUT - this is the loop error amp output connec- tion. It is brought out for allowing various loop com- pensation circuits to be connected between this and -E/A. REF OUT - is a 6.25 volt regulated output that can be used to power the hall devices in various motors. Up to 15 milliamps of current is available. In applications where pull-up resistors are being used to pull up to REF OUT, and the device being pulled up is a dual supply(±15V, for instance) device such as an open-collector compara- tor, a schottky diode shall be used between REF OUT and SIG GND to prevent a negative voltage condition on REF OUT during power-up. Without it, the device may latch up. CURRENT LIMIT ADJUST - is used to adjust the output current limit. The pin, if left open will limit the output current to about 1 amp. The pin, taken to ground will limit the current to about 15 amps. A resistor from the pin to ground will yield current limits in between. (See Current Limit Adjust) SPEED COMMAND (+,-) - are differential inputs for controlling the motor speed. With a positive voltage command the motor will operate in the forward direc- tion and with a negative command the motor will op- erate in the reverse direction. The maximum opera- tional command voltage should be ±5 volts. 8548-72 Rev. F 12/14
1 = High Level H = SOURCE 0 = Low Level L = SINK X = Don't Care - = OPEN COMMUTATION TRUTH TABLE HALL SENSOR PHASING SPEED COMMAND = POS. SPEED COMMAND = NEG. 120° HALL A X HALL B X HALL C X AØ H L L H L BØ H H L L L CØ L L H H L AØ L H H L L BØ L L H H L CØ H H L L L APPLICATION NOTES CONTINUED 8548-72 Rev. F 12/14
BUS VOLTAGE FILTER CAPACITORS The size and placement of the capacitors for the DC bus has a direct bearing on the amount of noise filtered and also on the size and duration of the voltage spikes seen by the bridge. What is being created is a series RLC tuned circuit with a resonant frequency that is seen as a damped ringing every time one of the transistors switches. For the resistance, wire resistance, power supply impedance and capacitor ESR all add up for the equivalent lumped resistance in the circuit. The inductance can be figured at about 30 nH per inch from the power supply. Any voltage spikes are on top of the bus voltage and the back EMF from the motor. All this must be taken into account when designing and laying out the system. If everything has been minimized, there is another solution. A second capacitance between 5 and 10 times the first capacitor and it should either have some ESR or a resistor can be added in series with the second capacitor to help damp the voltage spikes. Be careful of the ripple current in all the capacitors. Excessive ripple current, beyond what the capacitors can handle, will destroy the capacitors. INPUT VOLTAGE FILTER CAPACITORS It is recommended that about 10 μF of capacitance (tantalum electrolytic) for bypassing the + and -15V power supplies be placed as close to the module pins as practical. Adding ceramic bypass capacitors of about 0.1 μF to 1 μF will aid in suppressing noise transients. GENERAL LAYOUT Good PC layout techniques are a must. Ground plane for the analog circuitry must be used and should be tied back to the SIG GND. Ground plane for the power circuitry should be tied back to the GND pin, pin 16. Pin 16 should be connected to pin 11 external to the hybrid by a single thick trace. This will connect the two ground planes together. LOW POWER STARTUP When starting up a system utilizing the MSK4310 for the first time, there are a few things to keep in mind. First, because of the small size of the module, short circuiting the output phases either to ground or the DC bus will destroy the bridge. The current limiting and control only works for current actually flowing through the bridge. The current sense resistor has to see the current in order for the electronics to control it. If possible, for startup use a lower voltage and lower current power supply to test out connections and the low current stability. With a limited current supply, even if the controller locks up, the dissipation will be limited. The ±15 volt power should be applied prior to applying the V+ voltage. APPLICATION NOTES CONTINUED 8548-72 Rev. F 12/14
MSK4310 TYPICAL APPLICATION CIRCUIT 8548-72 Rev. F 12/14
The above example is a Military grade hybrid with leads bent up. MSK4310 H U LEAD CONFIGURATIONS S= STRAIGHT; U= BENT UP; D= BENT DOWN SCREENING BLANK= INDUSTRIAL; H=MIL-PRF-38534 CLASS H GENERAL PART NUMBER
ORDERING INFORMATION
ESD TRIANGLE INDICATES PIN 1 WEIGHT=41.4 GRAMS TYPICAL ALL DIMENSIONS ARE SPECIFIED IN INCHES 8548-72 Rev. F 12/14
The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make changes to its products or specifications without notice, however, and assumes no liability for the use of its products. Please visit our website for the most recent revision of this datasheet. Contact MSK for MIL-PRF-38534 qualification status. MSK Phone (315) 701-6751 FAX (315) 701-6752 www.mskennedy.com 9 8548-72 Rev. F 12/14