Broadcom Isolation Products

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For the automotive industry, Broadcom offers a wide range of digital, IPM interface, gate drive optocouplers and isolation amplifiers. The first supplier to introduce 125°C plastic optocouplers for automotive applications, Broadcom automotive R2Coupler™ products are AEC-Q100 qualified.

Isolation Amplifier

ACPL-C87AT (±1% gain tolerance) and ACPL-C87BT (±0.5% gain tolerance) are designed for high precision DC voltage sensing in electronic motor drivers, DC/DC and AC/DC converters and battery monitoring system.  The ACPL-C87AT/C87BT features high input impedance and operate with full span of analog input voltage up to 2.46V.  The shutdown feature provides power saving and can be controlled from an external source such as a microprocessor.

The ACPL-C87AT/C87BT automotive isolation amplifiers utilize superior optical coupling technology, with sigma-delta (Σ−Δ) analog-to-digital converter, chopper stabilized amplifiers, and a fully differential circuit topology to provide unequaled isolation-mode noise rejection, low offset, high gain accuracy and stability.

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Features Applications
  • Unity Gain
  • ±0.5% (ACPL-C87BT) and ±1% (ACPL-C87AT) Gain Tolerance @25oC
  • 25ppm/oC Gain Drift vs Temperature
  • -0.3 mV Input Offset Voltage
  • 0.05% Nonlinearity
  • 0 to 2V Nominal Input Range
  • 100kHz Bandwidth
  • Qualified to AEC-Q100 Grade 1 Test Guidelines
  • Automotive Operating Temperature -40 to +125°C
  • Shutdown Feature (Active High)
  • 15 kV/μs Common-Mode Rejection at VCM = 1000V
  • Compact, Surface-Mount Stretched SO-8 Package
  • Worldwide Safety Approval:
    • UL 1577 (5000 VRMS/1 min.) and CSA
    • IEC/EN/DIN EN 60747-5-5 (pending)
  • Automotive Motor Inverter DC Bus Voltage Sensing
  • Automotive DC/DC Converter Voltage Sensing
  • Automotive AC/DC (Charger) DC Output Voltage Sensing
  • Automotive Battery Pack Voltage Sensing
  • Isolation Interface for Temperature Sensing
  • General Purpose Voltage Sensing and Monitoring

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Dual-Channel Octocoupler

The Broadcom ACFL-6212T is an automotive-grade, dual-channel optocopler device designed for bi-directional digital communications. The device has two optocoupler channels internally aligned 180 degrees of each other, providing optimum chip pin-out configuration for bi-directional Tx/Rx data communication design and board layout. The two channels are electrically indepedent and galvanically isolated, providing an ideal isolated bi-directional power system communication interface.

The device is optimized for high speed systems supporting data rates up to 10 MBd and packaged in a compact SSO-12 package comparable to the SSO-8 footprint.

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Features Applications
  • Automotive Qualified per AEC-Q100 Grade 1 Test Guidelines
  • Operating Temperature from -40 °C to +125 °C
  • 5V CMOS Output
  • 8mm Creepage and Clearance
  • Data Rates up to 10 MBd
  • LED Current Drive (IF): 4 to 15 mA
  • Low Propagation Delay: 100 ns (max)
  • Vcc Range: 3 to 5.5 V
  • Compact, Auto-Insertable Stretched SO12 Package
  • Worldwide Safety Approval:
    • UL 1577 approval, Viso = 5,000 Vrms for 1 min.
    • CSA Component Acceptance Notice 5
    • IEC 60747-5-5, EN/DIN EN 60747-5-2, Viorm = 1,140 Vpeak
  • Automotive CANBus and SPI Communications Interface
  • Automotive Power Transitor Isolation
  • High Temperature Digital Signal Isolation
  • Automotive IPM Driver for DC/DC Converters and Motor Inverters
  • Digital Isolation for A/D and D/A Conversion

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R2Coupler Smart Gate Drive Optocoupler

ACPL-32JT is a 2.5A Automotive R2Coupler Smart Gate Drive Optocoupler, which features integrated flyback controller for isolated DC-DC converter, IGBT Desaturation sensing with fault feedback, Under-Voltage LockOut (UVLO) with soft-shutdown and fault feedback and active Miller current clamping.   The fast propagation delay and tight timing skew performance enables excellent timing control and efficiency.  This full feature optocoupler comes in a compact, surface-mountable SO-16 package for space-savings, and is suitable for traction power train inverter, power converter, battery charger, air-conditioner and oil pump motor drives in HEV and EV applications.

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Features Applications
  • Qualified to AEC-Q100 Grade 1 Test Guidelines
  • Operating temperature range: -40°C to +125°C
  • Integrated flyback controller for isolated DC-DC converter
  • Regulated Output Voltage: 20V
  • Peak output current: 2.5A (max.)
  • Miller Clamp Sinking Current: 1.7A (max.)
  • Wide Input Voltage Range: 8V to 18V
  • Propagation delay: 250ns (max.)
  • Dead time distortion range: -160ns to +60ns
  • Common Mode Rejection (CMR): >50 kV/μs at VCM = 1500 V
  • Integrated fail-safe IGBT protection:
    • Desat sensing, "Soft" IGBT turn-off and Fault Feedback
    • Under Voltage Lock-Out (UVLO) protection with Feedback
  • High Noise Immunity:
    • Miller Current Clamping
    • Direct LED input with low input impedance and low noise sensitivity
    • Negative Gate Bias
  • Compact SO-16 package with 8mm clearance and creepage
  • Regulatory approvals:
    • UL1577, CSA (5000VRMS for 1min)
    • IEC/EN/DIN EN 60747-5-5 (VIORM = 1230VPEAK)
  • Options Available are:
  • 500 = Tape and Reel Packaging Option
  • XXXE = Lead Free Option
  • Automotive Isolated IGBT/MOSFET Gate Drive
  • Hybrid and Plug-in Powertrain Inverter
  • Automotive DC-DC Converter
  • AC and Brushless DC Motor Drives
  • Uninterruptible Power Supplies (UPS)

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Resources

Broadcom

Isolation Amplifier

ACPL-C87AT (±1% gain tolerance) and ACPL-C87BT (±0.5% gain tolerance) are designed for high precision DC voltage sensing in electronic motor drivers.

Dual-Channel Octocoupler - Grid

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Broadcom

Dual-Channel Octocoupler

The Broadcom ACFL-6212T is an automotive-grade, dual-channel optocopler device designed for bi-directional digital communications.

R2Coupler Smart Gate Drive Optocoupler - Grid

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Broadcom

R2Coupler Smart Gate Drive Optocoupler

ACPL-32JT is a 2.5A Automotive R2Coupler Smart Gate Drive Optocoupler, which features integrated flyback controller for isolated DC-DC converter.

Reliable Isolation Solutions - Grid

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Whitepaper

Reliable Isolation Solutions

Reliable Isolation Solutions for Automotive Applications

Automotive solutions

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