MSA240 APEX | Alldatasheet

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Technical content

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

FEATURES

  • LOW COST
  • HIGH VOLTAGE - 100 VOLTS
  • HIGH OUTPUT CURRENT - 20 AMPS
  • 2kW OUTPUT CAPABILITY
  • VARIABLE SWITCHING FREQUENCY

APPLICATIONS

  • BRUSH MOTOR CONTROL
  • MRI
  • MAGNETIC BEARINGS
  • CLASS D SWITCHMODE AMPLIFIER

DESCRIPTION

The MSA240 is a surface mount constructed PWM amplifier that provides a cost effective solution in many industrial applica- tions. The MSA240 offers outstanding performance that rivals many much more expensive hybrid components. The MSA240 is a complete PWM amplifier including an oscillator, comparator, error amplifier, current limit comparators, 5V reference, a smart controller and a full bridge output circuit. The switching frequency is user programmable up to 50 kHz. The MSA240 is built on a thermally conductive but electrically insulating substrate that can be mounted to a heatsink. EQUIVALENT CIRCUIT DIAGRAM 58-PIN DIP PACKAGE STYLE KC TYPICAL APPLICATION TORQUE MOTOR CONTROL With the addition of a few external components the MSA240 becomes a motor torque controller. In the MSA240 the source terminal of each low side MOSFET driver is brought out for current sensing via RSA and RSB. A1 is a differential amplifier that amplifies the difference in currents of the two half bridges. This signal is fed into the internal error amplifier that mixes the current signal and the control signal. The result is an input signal to the MSA240 that controls the torque on the motor. EXTERNAL CONNECTIONS VIEW FROM COMPONENT SIDE ROSC RRAMP SINGLE POINT GND C3C1 C2

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 ABSOLUTE MAXIMUM RATINGS SPECIFICATIONSMSA240 SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PARAMETER TEST CONDITIONS1 MIN TYP MAX UNITS ERROR AMPLIFIER OFFSET VOLTAGE Full temperature range 9 mV BIAS CURRENT Full temperature range 500 nA OFFSET CURRENT Full temperature range 150 nA COMMON MODE VOLTAGE RANGE Full temperature range 0 4 V SLEW RATE Full temperature range 1 V/µS OPEN LOOP GAIN RL = 2KΩ 96 dB UNITY GAIN BANDWIDTH 1 MHz CLOCK LOW LEVEL OUTPUT VOLTAGE Full temperature range .2 V HIGH LEVEL OUTPUT VOLTAGE Full temperature range 4.8 V RISE TIME 7 nS FALL TIME 7 nS BIAS CURRENT, pin 22 Full temperature range 0.6 µA 5V REFERENCE OUTPUT VOLTAGE 4.85 5.15 V LOAD CURRENT 2 mA OUTPUT TOTAL RON, both MOSFETs4 IO = 20A , TJ = 85°C 155 mΩ CURRENT, continuous 20 A CURRENT, peak 100mS 30 A OUTPUT MOSFET BODY DIODE CONTINUOUS CURRENT 20 A FORWARD VOLTAGE I = 16A 1.3 V REVERSE RECOVERY I F = 16A 250 nS POWER SUPPLY VOLTAGE, VS 3 60 100 V VOLTAGE, VCC 14 15 16 V CURRENT, VS, quiescent 22kHz switching 4 28 mA CURRENT, VCC, quiescent 22kHz switching 18 mA CURRENT, VCC, shutdown 10 mA THERMAL RESISTANCE, DC, junction to case Full temperature range 1.2 °C/W RESISTANCE, junction to air Full temperature range 14 °C/W TEMPERATURE RANGE, case -40 85 °C/W SUPPLY VOLTAGE, VS 100V SUPPLY VOLTAGE, VCC 16V OUTPUT CURRENT, peak 30A, within SOA POWER DISSIPATION, internal, DC 250W SIGNAL INPUT VOLTAGES 5.4V TEMPERATURE, pin solder, 10s 225°C. TEMPERATURE, junction2 175°C. TEMPERATURE RANGE, storage -40° to 105°C. OPERATING TEMPERATURE, case -40° to 85°C. NOTES: 1. Unless otherwise noted: T C=25°C, VCC = 15V, VS = 60V 2. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTBF. 3. Each of the two output transistors on at any one time can dissipate 125W. 4. Maximum specification guaranteed but not tested.

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com TYPICAL PERFORMANCE GRAPHS MSA240