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SA03 データシート(PDF) 1 Page - Cirrus Logic |
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SA03 データシート(HTML) 1 Page - Cirrus Logic |
1 / 5 page P r o d u c t I n n o v a t i o n F r o m SA03 SA03U 1 SA03 SA03 USA BeO ∆ TE949311 FEATURES •WIDESUPPLYRANGE—16-100V •30ACONTINUOUSTO60°Ccase •3PROTECTIONCIRCUITS •ANALOGORDIGITALINPUTS •SYNCHRONIZEDOREXTERNALOSCILLATOR •FLEXIBLEFREQUENCYCONTROL APPLICATIONS •MOTORSTO4HP •REACTIVELOADS •LOWFREQUENCYSONAR •LARGEPIEZOELEMENTS •OFF-LINEDRIVERS •C-DWELDCONTROLLER DESCRIPTION The SA03 is a pulse width amplifier that can supply 3000W to the load. An internal 45kHz oscillator requires no external components. The clock input stage divides the oscillator fre- quency by two, which provides the basic switching of 22.5 kHz. External oscillators may also be used to lower the switching frequency or to synchronize multiple amplifiers.Current sensing is provided for each half of the bridge giving amplitude and direction data.A shutdown input turns off all four drivers of the H bridge output.A high side current limit and the programmable low side current limit protect the amplifier from shorts to sup- ply or ground in addition to load shorts. The H bridge output MOSFETs are protected from thermal overloads by directly sensing the temperature of the die.The 12-pin hermetic MO-127 power package occupies only 3 square inches of board space. BLOCKDIAGRAMANDTYPICALAPPLICATION EXTERNALCONNECTIONS TOP VIEW CLK IN CLK OUT +PWM –PWM/RAMP GND ILIM/SHDN ISENSE A A OUT +VS VCC * * B OUT I SENSE B 1 2 3 4 5 6 12 11 10 9 8 7 TOP VIEW Case tied to pin 5. Allow no current in case. Bypassing of supplies is required. Package is Apex MO-127 (STD). See Outline Dimensions/Packages in Apex data book. If +PWM > RAMP/–PWM then A OUT > B OUT. * See text. +VS A OUT B OUT ILIM/SHDN I SENSE A I SENSE B RSENSE RSENSE MOTOR GND CLK IN CONTROL SIGNAL CLK OUT –PWM/RAMP +PWM Vcc 5V 5V SHUTDOWN CONTROL OUTPUT DRIVERS PWM 56K 1K 1K 5K .01µF 470pF ÷2 OSC CURRENT LIMIT 9 8 3 10 4 2 1 5 11 12 6 7 12-PINPOWERDIP PACKAGESTYLECR Pulse Width Modulation Amplifier SA03 P r o d u c t I n n o v a t i o n F r o m Copyright © Cirrus Logic, Inc. 2009 (All Rights Reserved) http://www.cirrus.com MAY 2009 APEX − SA03UREVH |
同様の部品番号 - SA03 |
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同様の説明 - SA03 |
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