AC drive power stage module
Products and reference designs
AC drive power stage module
Overview
Our integrated circuits and reference designs help you create an efficient, fully protected power stage module for alternating current (AC) drives. Our analog and embedded processing products enable improved motor control performance and exceed isolation and EMC requirements per IEC standards.
Design requirements
AC drive power stage modules often require:
- Non-isolated and isolated gate drivers with high common mode transient immunity (CMTI) and built-in protection.
- Precise current and voltage sense for torque control in sensorless operation.
- Robust overcurrent protection against short circuit and shoot through events.
- Efficient non-isolated and isolated power supplies with tight regulation.
Explore applications similar in function and design
Block diagram
Find products and reference designs for your system.
Isolated AC drive power stage
DC link current & voltage sense
Isolation (18)
Isolated amplifiers
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AMC0311S—Precision 2V-input reinforced isolated amplifier with fixed gain, single-ended output
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AMC1302-Q1—Automotive, ±50-mV input, precision current sensing reinforced isolated amplifier
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AMC1311—2-V input, precision voltage sensing reinforced isolated amplifier
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AMC1301—±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing
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AMC3330—±1-V input, precision voltage sensing reinforced isolated amplifier with integrated DC/DC
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AMC1300—±250-mV input, precision current sensing reinforced isolated amplifier
Isolated ADCs
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AMC1306M25—±250-mV input, precision current sensing reinforced isolated modulator
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AMC1306M25E—Reinforced isolated modulator with -55C extended temperature range
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AMC1306M05—±50-mV input, precision current sensing reinforced isolated modulator
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AMC1304L05—±50-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS interface
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AMC1305L25—±250-mV input, precision current sensing reinforced isolated modulator with LVDS interface
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AMC1304L25—±250-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS Interface
Digital isolators
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ISO6721-Q1—Automotive, general-purpose, dual-channel, 1/1 digital isolator
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ISO6760—General purpose, 50-Mbps, six-channel (6/0) digital isolator
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ISO7721—Robust EMC, dual-channel, 1/1, reinforced digital isolator
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ISO7710—Robust EMC, single-channel, reinforced digital isolator
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ISO7742—Robust EMC, quad-channel, 2/2, reinforced digital isolator
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ISO6760L—Integrated interlock, 50-Mbps, six-channel (6/0) digital isolator
Amplifiers (27)
Comparators
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TLV1701—Single high voltage, low power comparator
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LM2901B—36-V, quad differential standard comparator
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TL331B—High voltage, cost optimized, single channel comparator
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LM339B—36-V, -40°C to 85°C quad standard comparator
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LM2903B—Dual industrial grade standard comparator
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LM2903—Dual differential comparator
Precision op amps (Vos<1mV)
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OPA2182—Industry’s lowest offset drift (0.012 uV/˚C, max), 5.7 nV/rtHz, MUX-friendly 36V op amp
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TLC279—Quad Precision Single Supply Operational Amplifier
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OPA4350—Quad, single-supply, rail-to-rail, high speed, low noise operational amplifier
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OPA4388—Quad, 10-MHz, CMOS, zero-drift, zero-crossover, true RRIO precision operational amplifier
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OPA4140—Quad-channel, 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output
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TLV333—Single, 350-kHz, low-noise, RRIO, CMOS operational amplifier for cost-sensitive systems
General-purpose op amps
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LM358B—Dual, 36-V, 1.2-MHz, 3-mV offset voltage operational amplifier with -40°C to 85°C operation
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OPA4991—Quad, 40-V, 4.5-MHz, low-power operational amplifier
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TL082H—Dual, 40-V, 5.25-MHz, 4-mV offset voltage, 20-V/µs, In to V+ op amp with -40°C to 125°C operation
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TL074H—Quad, 40-V, 5-MHz, 4-mV offset voltage, 20-V/µs, In to V+ op amp with -40°C to 125°C operation
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MCP6291—Single, 5.5-V, 10-MHz, 50-mA output current, low noise (8.7-nV/√Hz), RRIO operational amplifier
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TLV9304—Quad, 40-V 1-MHz low-power (0.15 mA) operational amplifier
High-speed op amps (GBW ≥ 50 MHz)
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TLV365-Q1—Automotive 50-MHz single-supply operational amplifier with rail-to-rail input and output
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OPA607—Low power, precision, 50 MHz decompensated CMOS operational amplifier for cost sensitive systems
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OPA365—2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier
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OPA4863—Quad, low-power, 110-MHz RRIO voltage-feedback amplifier
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OPA2365—2.2V, 50MHz, Low-Noise Single-Supply Rail-to-Rail Operational Amplifiers
Instrumentation amplifiers
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INA828—50-μV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier
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INA821—High bandwidth (4.7MHz), low noise (7nV/√Hz), precision (35μV), low-power, instrumentation amp
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INA826—Precision, 200-μA Supply Current, 36-V Supply Instrumentation Amplifier
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INA333—Low-Power, Zero-Drift, Precision Instrumentation Amplifier
Power management (18)
Shunt voltage references
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TLV431B-Q1—Automotive, low-voltage adjustable precision shunt regulator
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TLA431—All-capacitor stable precision programmable reference with KRA pin layout
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LM4050-N—50-ppm/°C precision micropower shunt voltage reference
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TL431—Adjustable precision shunt regulator
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ATL431LI—Low-IQ programmable shunt regulator offered in an ultra-small DQN package
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ATL432LI—High-bandwidth, low-IQ programmable shunt regulator (pinout: RKA)
Linear & low-dropout (LDO) regulators
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TLV761—1A 16V high-PSRR linear voltage regulator
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TPS7A20—300mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator with high PSRR
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TLV755P—500mA high-PSRR low-IQ low-dropout voltage regulator with enable
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TLV709—150-mA 30-V low-dropout (LDO) linear regulator with 3.2-μA supply current
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TLV757P—1-A, low-IQ high-accuracy low-dropout (LDO) voltage regulator with enable
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TPS746—1-A, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with power good & enable
Series voltage references
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REF35—650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference
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REF31-Q1—Automotive, 20-ppm/°C (max), 100-µA, 3-pin SOT-23 series voltage reference
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REF50E—Enhanced low-noise (0.5µVpp/V), low-drift (2.5ppm°/C), wide-VIN (42V) precision voltage reference
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REF34-Q1—Automotive, low-drift, low-power, small-footprint series voltage reference
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REF4132—12-ppm/°C low-noise low-power precision voltage reference
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REF2025—8-ppm/°C drift, low-power, dual-output Vref & Vref/2 voltage reference
Logic & voltage translation (6)
Noninverting buffers & drivers
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SN74ACT244—Eight-channel, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs and three-state outputs
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SN74LVC2G07—2-ch, 1.65-V to 5.5-V buffers with open-drain outputs
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SN74LVC244A—8-ch, 1.65-V to 3.6-V buffers with 3-state outputs
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SN74LVC1G17—Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs
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SN74LVC1G125—Single 1.65-V to 5.5-V buffer with 3-state outputs
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SN74LVC07A—6-ch, 1.65-V to 5.5-V buffers with open-drain outputs
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TIDA-00171—Isolated Current Shunt and Voltage Measurement Reference Design for Motor DrivesSchematic: PDF
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TIDA-00201—Differential Signal Conditioning Circuit for Current and Voltage Measurement Using Fluxgate Sensors
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TIDA-00208—Single-Ended Signal Conditioning Circuit for Current and Voltage Measurement Using Fluxgate Sensors
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TIDA-00316—Interfacing Current Output Hall Sensors and CTs with Pseudo-differential ADC/MCU Reference Design
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TIDA-00368—Reference Design for Interfacing Current Output Hall Sensors and CTs with Differential ADC/MCU
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TIDA-00912—Shunt-Based High Current Measurement (200-A) Reference Design with Reinforced Isolation Amplifier
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TIDA-010937—Isolated low delay high PWM rejection Hall current sense reference design with digital interface
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TIDA-01541—High-Bandwidth Phase Current and DC-Link Voltage Sensing Reference Design for Three-Phase Inverters
Technical documentation
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