(800) 546-APEX (800) 546-2739 FEATURES WIDE SUPPLY RANG

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(800) 546-APEX (800) 546-2739 FEATURES WIDE SUPPLY RANG

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SA06
(800) 546-APEX
(800) 546-2739
FEATURES
WIDE SUPPLY RANGE-16-500V CONTINUOUS CASE PROTECTION CIRCUITS ANALOG DIGITAL INPUTS SYNCHRONIZED EXTERNAL OSCILLATOR FLEXIBLE FREQUENCY CONTROL
SA06
TE9493
APPLICATIONS
MOTORS REACTIVE LOADS FREQUENCY SONAR LARGE PIEZO ELEMENTS OFF-LINE DRIVERS WELD CONTROLLER
EXTERNAL CONNECTIONS
ISENSE
DESCRIPTION
SA06 pulse width modulation amplifier that supply 5000W load. internal oscillator requires external components. clock input stage divides oscillator frequency two, which provides switching frequency 22.5 kHz. External oscillators also used lower switching frequency synchronize multiple amplifiers. Current sensing provided each half bridge giving amplitude direction data. shutdown input turns four drivers bridge output. high side current limit programmable side current limit protect amplifier from shorts supply ground addition load shorts. bridge output MOSFETs protected from thermal overloads directly sensing temperature die. 12-pin hermetic MO-127/40S power package occupies only square inches board space.
+PWM -PWM/RAMP ILIM/SHDN
VIEW
SENSE
Case tied Allow current case. Bypassing supplies required. Package Apex MO-127/40S. Outline Dimensions/Packages Apex data book. +PWM RAMP/-PWM then OUT. *See text.
BLOCK DIAGRAM TYPICAL APPLICATION MOTOR TORQUE CONTROL
-PWM/RAMP 470pF SHUTDOWN CONTROL CONTROL SIGNAL OUTPUT DRIVERS MOTOR SENSE ILIM/SHDN SENSE RSENSE .01µF +PWM CURRENT LIMIT
RSENSE
APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
SA06
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, SUPPLY VOLTAGE, POWER DISSIPATION, internal TEMPERATURE, solder TEMPERATURE, junction2 TEMPERATURE, storage OPERATING TEMPERATURE RANGE, case INPUT VOLTAGE, +PWM INPUT VOLTAGE, -PWM INPUT VOLTAGE, ILIM TEST CONDITIONS2
ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS
500V 300W 300°C 150°C +150°C +125°C +11V +11V +10V UNITS
SPECIFICATIONS
PARAMETER CLOCK (CLK) OUT, high level4 OUT, level4 FREQUENCY RAMP, center voltage RAMP, voltage level4 high level4 OUTPUT TOTAL EFFICIENCY, output SWITCHING FREQUENCY CURRENT, continuous4 CURRENT, peak4 POWER SUPPLY VOLTAGE, VOLTAGE, CURRENT, CURRENT, VCC, shutdown CURRENT, ILIM/SHUTDOWN TRIP POINT INPUT CURRENT THERMAL3 RESISTANCE, junction case RESISTANCE, junction TEMPERATURE RANGE, case NOTES: Full temperature range, each Full temperature range Meets full range specifications °C/W °C/W Full temperature range Full temperature range IOUT Load 500V 75°C case 22.05 22.50 22.95 IOUT IOUT 44.10 46.90
45.00
Each active output transistors dissipate 150W. Unless otherwise noted: 25°C, typical specification. Long term operation maximum junction temperature will result reduced product life. Derate internal power dissipation achieve high MTTF. guidance, refer heatsink data sheet. Guaranteed tested. 100% duty cycle required VS(MIN) SA06 constructed from MOSFET transistors. handling procedures must observed. internal substrate contains beryllia (BeO). break seal. accidentally broken, crush, machine, subject temperatures excess 850°C avoid generating toxic fumes.
CAUTION
APEX MICROTECHNOLOGY CORPORATION 5980 NORTH SHANNON ROAD TUCSON, ARIZONA 85741 APPLICATIONS HOTLINE: (800) 546-2739
TYPICAL PERFORMANCE GRAPHS
SA06
CLOCK LOADING
NORMALIZED FREQUENCY, NORMALIZED FREQUENCY,
INTERNAL POWER DISSIPATION,
POWER DERATING
CASE TEMPERATURE, (°C)
EACH ACTIVE OUTPUT TRANSISTOR
CLOCK FREQUENCY OVER TEMP
102.0 101.5 101.0 100.5 99.5 99.0 98.5 98.0 CASE TEMPERATURE, (°C)
NOMINAL 45kHz 100K CLOCK LOAD RESISTANCE,
REVERSE DIODE
TOTAL VOLTAGE DROP
CASE TEMPERATURE 75°C 85°C 100°C
FLYBACK CURRENT,
TOTAL VOLTAGE DROP,
125°C
25°C -25°C -55°C OUTPUT CURRENT,
SOURCE DRAIN DIODE VOLTAGE
CONTINUOUS OUTPUT
DUTY CYCLE ANALOG INPUT
NORMALIZED QUIESCENT CURRENT,
QUIESCENT CURRENT
CONTINUOUS AMPS
DUTY CYCLE,
CASE TEMPERATURE, (°C)
ANALOG INPUT,
SWITCHING FREQUENCY, (kHz)
NORMALIZED QUIESCENT CURRENT,
NORMALIZED QUIESCENT CURRENT,
CASE TEMPERATURE, (°C) SHUTDOWN OPERATION NORMAL OPERATION 22.5
NORMALIZED QUIESCENT CURRENT,
QUIESCENT CURRENT
QUIESCENT VOLTAGE
QUIESCENT FREQUENCY
250V, LOAD
SWITCHING FREQUENCY, (kHz)
APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
OPERATING CONSIDERATIONS
SA06
Switching noise spikes will invariably found SENSE pins. noise spikes could trip current limit threshR LIMIT which only RFILTER SENSE CFILTER should adjusted reduce switching LIMIT noise well below prevent false curSHUTDOWN rent limiting. LIMIT/SHDN SIGNAL FILTER level plus SHDN FILTER noise peak will determine current limiting FIGURE CURRENT LIMIT WITH value. most SHUTDOWN CURRENT MODE. switching circuits difficult determine true noise amplitude without careful attention grounding oscilloscope probe. shortest possible ground lead probe connect exactly terminal amplifier. Suggested starting values CFILTER .01uF, RFILTER
SENSE
GENERAL
Please read Application Note "PWM Basics". Refer Application Note "General Operating Considerations" helpful information regarding power supplies, heat sinking mounting. Visit www.apexmicrotech.com design tools that help automate filter design; heat sink selection; Apex's complete Application Notes library; Technical Seminar Workbook; Evaluation Kits.
CLOCK CIRCUIT RAMP GENERATOR
clock frequency internally frequency approximately 45kHz. will normally tied pin. clock divided applied network which produces ramp signal -PWM/ RAMP pin. external clock signal applied synchronization purposes. clock frequency lower than 45kHz chosen external capacitor must tied -PWM/RAMP pin. This capacitor, which parallels internal capacitor, must selected that ramp oscillates volts with lower peak volts above ground.
INPUTS
full bridge driver accessed input comparator. When +PWM -PWM then OUT. motion control processor which generates signal drive these pins with signals referenced GND.
PROTECTION CIRCUITS
addition externally programmable current limit there also fixed internal current limit which senses only high side current. nominally 140% continuous rated output current. Should either outputs shorted ground high side current limit will latch output transistors. Also, temperature output transistors continually monitored. Should fault condition occur which raises temperature output transistors 165°C thermal protection circuit will activate also latch output transistors. either case, will necessary remove fault condition recycle power restart circuit.
required value RLIMIT voltage mode calculated RLIMIT ILIMIT where RLIMIT required resistor value, ILIMIT maximum desired current. current mode required value each RLIMIT times this value since sense voltage divided down (see Figure RSHDN used will further divide down sense voltage. shutdown divider network will also have effect filtering circuit.
BYPASSING
Adequate bypassing power supplies required proper operation. Failure cause erratic efficiency operation well excessive ringing outputs. supply should bypassed with least ceramic capacitor parallel with another capacitor least 10µF output current. Capacitor types rated switching applications only types that should considered. bypass capacitors must physically connected directly power supply pins. Even inch lead length will cause excessive ringing outputs. This very fast switching times inductance lead connection. bypassing requirements supply less stringent, still necessary. .1µF .47µF ceramic capacitor connected directly will suffice.
CURRENT LIMIT
There load current sensing pins, SENSE SENSE pins shorted voltage mode connection both must used current mode connection (see figures recommended that RLIMIT resistors non-inductive. Load current flows SENSE pins. avoid errors lead lengths SENSE connect LIMIT/ SHDN directly LIMIT SENSE LIMIT resistors (through filter net1K SHUTDOWN work shutdown LIMIT/SHDN FILTER SIGNAL vider resistor) connect RLIMIT resisR SHDN FILTER tors directly pin.
FIGURE CURRENT LIMIT WITH SHUTDOWN VOLTAGE MODE.
STARTUP CONDITIONS
high side channel output bridge circuit driven bootstrap circuit charge pump arrangement. order circuit produce 100% duty cycle indefinitely side each half bridge circuit must have previously been condition. This means, turn, that input signal SA06 startup demanding 100% duty cycle, output follow command tristate condition. ramp signal must cross input signal some point correctly determine output state. After ramp crosses input signal level time, output state will correct thereafter.
This data sheet been carefully checked believed reliable, however, responsibility assumed possible inaccuracies omissions. specifications subject change without notice. SA06U REV. MARCH 2001 2001 Apex Microtechnology Corp.

(800) 546-APEX (800) 546-2739 FEATURES WIDE SUPPLY RANG

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