The ACPL-32JT is an automotive-grade 2.5 Amp Gate Drive Optocoupler featuring an integrated flyback controller for isolated DC-DC converters. It offers IGBT desaturation sensing with fault feedback, Under-Voltage Lock-Out (UVLO) protection with soft-shutdown and feedback, and active Miller current clamping. Designed for high noise immunity and fast propagation delay, this optocoupler enables precise timing control and efficiency in demanding automotive applications. Its compact SO-16 package with enhanced clearance and creepage makes it suitable for space-constrained designs in HEV and EV powertrains, power converters, and motor drives.
| Specification | Value | Unit | Conditions |
|---|---|---|---|
| Automotive Temperature Range | -40 to 125 | C | |
| Regulated Output Voltage (VCC2) | 19 to 21.5 | V | ICOMP = 0 A |
| Peak Output Current (IO) | 2.5 | A max. | Pulse width < 1 s, duty cycle < 1% |
| Miller Clamp Sinking Current | 1.7 | A max. | |
| Wide Input Voltage Range (VCC1) | 8 to 18 | V | |
| Common-Mode Rejection (CMR) | > 30 | kV/ms | at VCM = 1500 V |
| Propagation Delay (tPLH) | 50 to 250 | ns | Vsource = 5 V, Rf = 260 , Rg = 10 , Cload = 10 nF, f = 10 kHz, Duty Cycle = 50% |
| Propagation Delay (tPHL) | 50 to 250 | ns | Vsource = 5 V, Rf = 260 , Rg = 10 , Cload = 10 nF, f = 10 kHz, Duty Cycle = 50% |
| Package Clearance and Creepage | 8 | mm | |
| Input-Output Test Voltage (VIORM) | 2306 | VPEAK | Method b, 100% Production Test, tM = 1 sec |
| Input-Output Test Voltage (VPR) | 1968 | VPEAK | Method a, Type and Sample Test, tM = 10 sec |
| Highest Allowable Overvoltage (VIOTM) | 8000 | VPEAK | Transient Overvoltage, tini = 60 sec |
| Minimum External Air Gap (Clearance) | 8.3 | mm | |
| Minimum External Tracking (Creepage) | 8.3 | mm | |
| Tracking Resistance (CTI) | > 175 | V | DIN IEC 112/VDE 0303 Part 1 |
| Storage Temperature (TS) | -55 to 150 | C | |
| Operating Temperature (TA) | -40 to 125 | C | |
| IC Junction Temperature (TJ) | 150 | C | |
| Input IC Power Dissipation (PI) | 180 | mW | |
| Output IC Power Dissipation (PO) | 580 | mW | Derated linearly above 100 C |
| Input LED Turn on Current (IF(ON)) | 10 to 16 | mA | |
| Desaturation Sensing Threshold (VDESAT) | 6.2 to 7.8 | V | Reference to VE |
| VCC2 UVLO Threshold Low to High (VUVLO+) | 10.9 to 13.8 | V | VO > 5 V |
| VCC2 UVLO Threshold High to Low (VUVLO-) | 10.0 to 12.8 | V | VO < 5 V |