Automotive digital optocoupler Broadcom ACPL-K43T-560E with fast speed and UL 1577 CSA IEC certifications
Product Overview
The Broadcom ACPL-K43T and ACPL-K44T are single and dual-channel digital optocouplers, respectively, designed for high-temperature automotive applications. These devices feature a miniature eight-lead footprint in a stretched SO-8 package, compatible with standard surface-mount processes. They utilize an insulating layer between the LED and photo detector for electrical insulation and incorporate separate connections for photodiode bias and output transistor collector to enhance speed. Broadcom R2Coupler isolation products offer reinforced insulation and reliability, critical for safe signal isolation in demanding automotive and high-temperature industrial environments. Key applications include automotive IPM drivers for DC-DC converters and motor inverters, status feedback and wake-up signal isolation, CANBus and SPI communication interfaces, and high-temperature digital/analog signal isolation.
Product Attributes
- Brand: Broadcom
- Product Line: R2Coupler
- Package Type: Stretched SO-8
- Certifications: UL 1577, CSA, IEC/EN/DIN EN 60747-5-5
- Automotive Qualification: AEC Q100 Grade 1
Technical Specifications
| Model | Description | Data Rate | Operating Temperature | Isolation Voltage | Propagation Delay | Common-Mode Rejection |
|---|---|---|---|---|---|---|
| ACPL-K43T | Single-channel digital optocoupler | 1 MBd | -40C to +125C | 5 kVRMS / 1 min (UL 1577) | 1 s max. (at IF = 10 mA) | 30 kV/s (typ.) at VCM = 1500V |
| ACPL-K44T | Dual-channel digital optocoupler | 1 MBd | -40C to +125C | 5 kVRMS / 1 min (UL 1577) | 1 s max. (at IF = 10 mA) | 30 kV/s (typ.) at VCM = 1500V |
| General Specifications | ||||||
| Supply Voltage (VCC) | Up to 20 V | |||||
| Input Forward Voltage (VF) | 1.45 V to 1.75 V (typ. 1.55 V at IF = 10 mA) | |||||
| Current Transfer Ratio (CTR) | 32% to 100% (typ. 65% at IF = 10 mA) | |||||
| Logic Low Output Voltage (VOL) | 0.1 V to 0.5 V | |||||
| Logic High Output Current (IOH) | 3 x 10^-5 A to 0.5 A | |||||
| Logic Low Supply Current (ICCL) | 85 A to 200 A | |||||
| Logic High Supply Current (ICCH) | 0.02 A to 1 A | |||||
| Input Capacitance (CIN) | 90 pF (typ.) | |||||
| Propagation Delay tPHL | 0.07 s to 0.8 s | |||||
| Propagation Delay tPLH | 0.15 s to 0.8 s | |||||
| Pulse Width Distortion (PWD) | 0.35 s to 0.45 s | |||||
| Propagation Delay Difference (PDD) | 0.35 s to 0.5 s | |||||
| Common Mode Transient Immunity (CMH/CML) | 15 kV/s to 30 kV/s (typ.) | |||||
| Input-Output Momentary Withstand Voltage (VISO) | 5000 VRMS | |||||
| Input-Output Resistance (RI-O) | > 1014 | |||||
| Input-Output Capacitance (CI-O) | 0.6 pF (typ.) | |||||
| Package Dimensions (L x W) | 6.807 mm x 5.850 mm | |||||
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