MSA260MSA260 MSA260 Pulse Width Modulation Amplifier FEATURES GENERAL DESCRIPTION The MSA260 is a surface mount constructed PWM LOW COST amplifier that provides a cost effective solution in many HIGH VOLTAGE - 450 VOLTS industrial applications. The MSA260 offers outstand- HIGH OUTPUT CURRENT - 20 AMPS ing performance that rivals many much more expen- 9kW OUTPUT CAPABILITY sive hybrid components. The MSA260 is a complete VARIABLE SWITCHING FREQUENCY PWM amplifier including an oscillator, comparator, er - IGBT FULL BRIDGE OUTPUT ror amplifier, current limit comparators, 5V reference, a smart controller and a full bridge IGBT output circuit. APPLICATIONS The switching frequency is user programmable up to BRUSH MOTOR CONTROL 50 kHz. The MSA260 is built on a thermally conductive MRI but electrically insulating substrate that can be mount- MAGNETIC BEARINGS ed to a heatsink. CLASS D SWITCHMODE AMPLIFIER EQUIVALENT CIRCUIT DIAGRAM V 29 CC 5V REF 19 OUT 5V SIGNAL REF 26 GND 30-34 SIGNAL 18 +Vs GND SIGNAL 2 44-48 GND 200mV DIGITAL +Vs 23 RETURN + 1K Q1 Q2 - I B LIM 7 .01F + 35-39 1K I A/ LIM - 10 A OUT SHDN SMART 2.68K .01F CONTROLLER R OSC 22 Q3 OSC 2200pF 49-53 CLK OUT 24 B OUT Q4 E/A OUT 17 54-57 E/A -IN 16 - I SENSE B E/A +IN + 15 R2 40-43 +IN 13 + I SENSE A 5.36K R3 - R IN RAMP 1 2200pF CLK/2 OUT 20 CLK/2 CLK IN 21 AC BACK 28 BACK PLATE PLATE 1F APEX TP 27 PWR 58 GND Copyright Apex Microtechnology, Inc. 2014 JUL 2014 www.apexanalog.com MSA260U 1 (All Rights Reserved) MSA260U REVFMSA260 CHARACTERISTICS AND SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Max Units SUPPLY VOLTAGE V 450 V S SUPPLY VOLTAGE V 16 V CC OUTPUT CURRENT, peak, within SOA 30 A POWER DISSIPATION, internal, DC (Note 3) 250 W SIGNAL INPUT VOLTAGES 5.4 V TEMPERATURE, pin solder, 10s 225 C TEMPERATURE, junction (Note 2) 150 C TEMPERATURE RANGE, storage 40 105 C OPERATING TEMPERATURE, case 40 85 C SPECIFICATIONS Parameter Test Conditions (Note 1) Min Typ Max Units ERROR AMPLIFIER OFFSET VOLTAGE Full temperature range 9 mV BIAS CURRENT, initial (Note 3) Full temperature range 500 nA OFFSET CURRENT, initial Full temperature range 150 nA COMMON MODE VOLTAGE RANGE, pos. Full temperature range 0 4 V SLEW RATE Full temperature range 1 V/s OPEN LOOP GAIN R = 2K 96 dB L UNITY GAIN BANDWIDTH 1 MHz CLOCK LOW LEVEL OUTPUT VOLTAGE Full temperature range 0.2 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 A 5V REFERENCE OUTPUT VOLTAGE 4.85 5.15 V LOAD CURRENT 2 mA OUTPUT (Note 4) V , each active IGBT I = 15A 2.25 V CE(ON) CE CURRENT, continuous V = 400V, F = 22kHz 20 A S CURRENT, peak 1mS, V = 400V, F = 22kHz 30 A S FLYBACK DIODE CONTINUOUS CURRENT 44 20 A FORWARD VOLTAGE I = 15A 200 1.5 V F REVERSE RECOVERY I = 15A 0.2 0.7 150 nS F 2 MSA260U