Robust automotive optocoupler Broadcom ACPL-344JT-500E with UVLO feedback and fault detection features
Product Overview
The Avago Technologies ACPL-344JT is a 2.5A Automotive Gate-Drive Optocoupler designed for high-performance IGBT gate-drive applications in Electric and Hybrid Electric Vehicles (HEV/EV). It integrates advanced protection features including IGBT desaturation sensing with soft-shutdown and fault feedback, under-voltage lockout (UVLO) with feedback, and active Miller-current clamping. This optocoupler offers fast propagation delay and excellent timing-skew performance, along with high noise immunity and reinforced insulation. Its compact SO-16 surface-mountable package saves space, making it ideal for traction power-train inverters, power converters, battery chargers, and motor drives for air conditioning and oil pumps. The ACPL-344JT satisfies automotive AEC-Q100 semiconductor requirements and provides safe signal isolation critical for demanding automotive and high-temperature industrial environments.
Product Attributes
- Brand: Avago Technologies (Broadcom)
- Product Family: R2Coupler
- Certifications: AEC-Q100 Grade 1, UL1577, CSA, IEC/EN/DIN EN 60747-5-5
- Package Type: SO-16 Surface Mount
- RoHS Compliant: Yes
Technical Specifications
| Parameter | Symbol | Value | Units | Conditions |
|---|---|---|---|---|
| Peak Output Current | IO(peak) | 2.5 | A | max. |
| Miller Clamp-Sinking Current | ICLAMP | 1.9 | A | max. |
| Wide Operating Voltage | VCC2VEE2 | 15 to 25 | V | |
| Propagation Delay (max.) | tPLH, tPHL | 250 | ns | max. |
| Automotive Temperature Range | TA | -40 to +125 | C | |
| Common Mode Rejection (CMR) | CMR | >50 | kV/s | at VCM = 1500V |
| Input-Output Test Voltage | VPR | 2306 | VPEAK | Method b, 100% Production Test |
| Input-Output Test Voltage | VPR | 1968 | VPEAK | Method a, Type and Sample Test |
| Highest Allowable Overvoltage | VIOTM | 8000 | VPEAK | |
| Minimum External Air Gap (Clearance) | L(101) | 8.3 | mm | |
| Minimum External Tracking (Creepage) | L(102) | 8.3 | mm | |
| Desaturation Sensing Threshold | VDESAT | 6.2 to 7.8 | V | reference to VE |
| UVLO Threshold (Low to High) | VUVLO+ | 11.0 to 13.7 | V | VCC2 reference to VE |
| UVLO Threshold (High to Low) | VUVLO- | 10.1 to 12.8 | V | VCC2 reference to VE |
| Package | SO-16 | 8 mm clearance and creepage |
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