ISL9V3040D3ST-F085C

Overview

The ISL9V3040D3ST-F085C is an N-Channel Ignition IGBT from the ECOSPARK family, designed for automotive ignition applications. It features a 400 V collector-emitter breakdown voltage and supports continuous collector currents of 21 A at 25°C case temperature and 17 A at 110°C. The device handles a self-clamped inductive switching energy (ESCIS) of 300 mJ at 25°C and 170 mJ at 150°C. It utilizes logic-level gate drive with a typical threshold voltage of 1.3 V to 2.2 V. Packaged in a DPAK (CASE 369AS), it offers a junction-to-case thermal resistance of 1 °C/W and operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• ECOSPARK technology provides high robustness against short-circuit pulses and inductive switching energy.
• Logic-level gate drive capability allows direct interfacing with standard automotive microcontrollers or drivers.
• AEC-Q101 qualified and PPAP capable, ensuring compliance with automotive reliability standards.

Applications

• Automotive ignition coil driver circuits
• High current ignition systems
• Coil on plug (COP) applications

Procurement Notes

Verify the specific package variant required, as the ISL9V3040 series includes DPAK, D2PAK, and TO-220 options. Confirm that the F085C suffix corresponds to the correct tape and reel specifications for automated assembly. Ensure the ordering information matches the desired shipping quantity, such as 2500 units per reel for the DPAK version. Cross-reference the marking diagram to confirm device identification upon receipt.

Selection Notes

Select this component when designing ignition systems requiring 400 V blocking capability and high surge current handling. The low gate threshold voltage simplifies driver design compared to standard IGBTs. Consider the thermal resistance and power dissipation limits relative to the expected duty cycle and case temperature. Verify that the ESCIS rating meets the specific inductance and clamp voltage requirements of the target ignition coil circuit.

Part Context

This part belongs to the ECOSPARK Ignition IGBT family from onsemi, which also includes variants like the ISL9V5045S3ST-F085C. These devices are engineered specifically for automotive environments, offering superior ruggedness compared to standard power switches. The family shares common design philosophies focused on minimizing switching losses while maximizing survival under harsh electrical stress conditions typical of ignition coils.

Replacement Considerations

Direct replacements include other ECOSPARK parts such as the ISL9V5045S3ST-F085C for higher energy ratings. Check pinout compatibility across DPAK, D2PAK, and TO-220 packages if changing form factors. Ensure any substitute maintains AEC-Q101 qualification and similar thermal characteristics for board layout retention.

FAQ

What is the maximum self-clamped inductive switching energy (ESCIS) at elevated temperatures?

At a junction temperature of 150°C, the ESCIS rating is 170 mJ, tested with ISCIS = 10.6 A, L = 3.0 mHy, and RGE = 1 kΩ.

How does the gate threshold voltage vary with temperature?

The gate-to-emitter threshold voltage (VGE(TH)) decreases with temperature, ranging from 1.3 V to 2.2 V at 25°C and dropping to 0.75 V to 1.8 V at 150°C.

Is this device suitable for high-side switching applications?

Yes, it is an N-Channel IGBT designed for ignition coil drivers, which typically operate in high-side configurations where the emitter is switched relative to ground during turn-off.