Firmenblog über Infineon IPDQ60R017S7A CoolMOS™ S7A MOSFET Transistor For Low-Frequency Switching Automotive Applications

Shenzhen Mingjiada Electronics Co., Ltd. supplies the Infineon IPDQ60R017S7A CoolMOS™ S7A MOSFET, suitable for low-frequency switching automotive applications.

The IPDQ60R017S7A is an N-channel super-junction power MOSFET from Infineon’s CoolMOS™ SJ S7A series, developed specifically for low-frequency static switching applications. It is AEC-Q101 certified for automotive applications and features a Q-DPAK (PG-HDSOP-22) top-cooled package. With its low on-resistance and high continuous current carrying capacity, it is the preferred choice for automotive high-voltage low-frequency switching, high-voltage fuses and battery isolator switches. The S7A platform differs from high-frequency PFC devices in that its switching rate has been optimised for slow switching, thereby suppressing switching oscillations and reducing EMI stress. It is ideally suited to the low-frequency on-off control requirements of the automotive high-voltage side, whilst balancing cost-effectiveness with long-term reliability.

I. Product Details

1. IPDQ60R017S7A Product Description

The IPDQ60R017S7A is developed based on Infineon’s proven Super Junction (SJ) process and is a static switch-oriented power transistor. It features an integrated Kelvin source pin, which reduces source parasitic inductance and ensures more stable gate drive under high-current conditions. The device utilises a top-cooled Q-DPAK package, offering a short heat dissipation path and excellent thermal resistance. It supports SMT assembly for mass production and meets the stringent temperature variation and vibration requirements of automotive electronics. The product is not intended for high-frequency converters, but rather for automotive high-voltage systems characterised by prolonged conduction and occasional switching—such as low-frequency switching, solid-state switches, high-voltage eFuses and battery disconnect units—where it can replace or be used in parallel with diodes to achieve high-power unidirectional or bidirectional switching control.

2. IPDQ60R017S7A Key Specifications

- Voltage rating VDS: 600 V

- On-resistance RDS(on) (10 V gate voltage, 25 °C): maximum 17 mΩ

- Continuous drain current ID: 30 A

- Pulsed drain current IDpuls: 491 A

- Total gate charge QG (typical @ 10 V): 196 nC

- Gate threshold voltage VGS (th): 3.5 V to 4.5 V, typical 4 V

- Maximum power dissipation Ptot: 500 W

- Operating junction temperature range: –40 °C to 150 °C

- Package: PG-HDSOP-22 (Q-DPAK) top-cooled package

- Grade: AEC-Q101 automotive-grade certified, RoHS lead-free compliant

3. IPDQ60R017S7A Product Features

1. Optimised for low-frequency, slow switching; low switching noise; easier EMI debugging; suitable for static switching applications

2. Ultra-low RDS(on); low conduction losses; lower heat generation during prolonged on-state operation

3. Kelvin Source design eliminates interference from source lead inductance on the gate drive under high-current conditions

4. Q-DPAK top-cooled package offers superior thermal efficiency compared to traditional bottom-cooled packages, whilst providing flexible PCB layout options

5. AEC-Q101 automotive-grade reliability verification, withstanding automotive-grade high and low-temperature cycling, shock and vibration

6. Super-junction process, achieving a compact package with low on-resistance at the 600V voltage rating, saving PCB layout space

7. Supports capacity expansion via multiple devices in parallel, suitable for automotive high-voltage switching solutions requiring higher currents

8. Device diagnostics-friendly; can be used in conjunction with peripheral circuits to implement on/off status monitoring and develop over-temperature protection logic

4. IPDQ60R017S7A Application Scenarios

- Automotive high-voltage battery isolating switches, low-frequency switches for high-voltage DC main circuits

- Automotive high-voltage electronic fuses (HV eFuses), solid-state circuit breakers

- Rectification for high-power automotive circuits, diode parallel connection / replacement solutions

- Static switches for auxiliary high-voltage power supplies in vehicles; on/off control for high-voltage power distribution units

- Low-frequency on/off modules for high-voltage power distribution boxes in new energy commercial and passenger vehicles

II. IPDQ60R017S7A Procurement, Selection and Buyer’s Guide

1. Key Considerations for Selection

When selecting components, priority should be given to confirming five key factors: system operating voltage, continuous operating current, switching frequency, thermal management conditions, and reliability grade. A safety margin must be factored into the system bus voltage; a 600 V withstand voltage is suitable for vehicle high-voltage platforms with a nominal 400 V rating. The continuous current must not exceed the 30 A rated value; for parallel configurations, current sharing and gate resistance matching must be properly implemented.

The switching frequency should be kept within the low-frequency range; on-off control at frequencies within tens of Hz best utilises the S7A’s slow-switching characteristics. If the switching frequency reaches tens of kHz or higher, it is recommended to switch to high-frequency CoolMOS series devices such as Infineon’s CFD7A.

Regarding thermal management, for the Q-DPAK top-side cooling configuration, a thermal pad combined with a housing cooling structure is preferred to fully utilise the package’s heat dissipation capabilities; PCB copper trace cooling should only be used as a supplementary measure.

For automotive-grade projects, the AEC-Q101 version must be confirmed. During the sampling phase, prepare the required PPAP documentation and finalise batch and wafer lot numbers with the supplier in advance to avoid delays in documentation during mass production.

2. IPDQ60R017S7A Pinout and Design Considerations

The device source pin and the sensor source pin must not be interchanged; reversing the pins will directly result in abnormal device failure. For parallel configurations, it is recommended that the gate resistor be placed on the drive source side to suppress parallel oscillation. A drive voltage of 10 V is recommended to ensure that RDS(on) meets specifications; avoid using excessively low gate voltages for prolonged periods to prevent an increase in on-resistance and subsequent overheating.

When preparing the BOM, include TVS diodes and gate voltage regulation protection to prevent damage to the gate oxide layer caused by in-vehicle surges or electrostatic discharge.

3. Distinction between IPDQ60R017S7A Sample and Mass Production Procurement

Sample stage: Prioritise requesting the original manufacturer’s datasheet and reliability reports; use small batches of samples for EVBs and bench testing, focusing on verifying temperature rise, surge tolerance and switching waveforms.

Mass production stage: Finalise batch selection and manage delivery lead times; require suppliers to provide original factory test reports and material certificates with the shipment; for long-term projects, it is advisable to plan for safety stock to mitigate fluctuations in the manufacturer’s delivery times.

Alternative selection: Compare with the IPQC60R017S7A in the same package (bottom-cooled version); select either top-cooled or bottom-cooled packaging based on the thermal management structure.

4. Key Points for Quality Inspection and Acceptance of IPDQ60R017S7A

Upon arrival, verify the silkscreen marking, package type and batch number; conduct a visual inspection to ensure the pins and moulded casing are undamaged; carry out spot checks to retest on-resistance and gate threshold voltage; for automotive-grade projects, request the supplier to provide the original manufacturer’s Certificate of Conformity (CoC) and relevant AEC-Q101 documentation.

III. Shenzhen Mingjiada Electronics Component Supply Process

Shenzhen Mingjiada Electronics is a long-term supplier of electronic components, whilst also providing supporting services such as parameter verification, technical support for component selection, and batch traceability. The standardised procurement process is as follows:

1. Submission of Requirements: Customers submit their requirements via the official website, email or their account manager, specifying the model number, required quantity, whether for samples or mass production, target delivery date, whether automotive-grade documentation is required, and any special quality inspection requirements; Customers may also enquire about technical matters such as alternative part numbers and parallel solutions at the same time.

2. Stock Verification and Quotation: The sales team verifies stock levels, goods in transit and the manufacturer’s production schedule and lead times, and provides a prompt quotation, distinguishing between sample and bulk prices. They also explain tax inclusion, customs clearance and logistics options, and verify that batch documentation is complete for automotive-grade components.

3. Solution and Documentation Confirmation: Technical support assists in verifying the suitability of the selected components, providing datasheets and parameter summaries. If required, the need to sign an NDA (Non-Disclosure Agreement) and any PPAP (Production Part Approval Process) documentation requirements are confirmed at the same time.

4. Order Confirmation and Contract Signing: Both parties confirm the price, delivery schedule and quality terms, sign a purchase contract, agree on quality inspection standards and after-sales responsibilities, and support various payment methods.

5. Stock Preparation and Warehouse Inspection: Upon receipt at the warehouse, the material’s silk-screen markings, packaging and batch numbers are verified, and a visual inspection is carried out. For critical batches, random electrical testing may be arranged, and sample information and original manufacturer’s certificates are retained.

6. Packaging, Dispatch and Logistics Tracking: Anti-static vacuum packaging is used, accompanied by shipping documents and original manufacturer’s certificates. Customers may choose between air freight, land transport and other channels; the entire logistics process for the order is trackable.

7. Arrival Inspection and After-Sales Service: The customer carries out an inspection upon receipt; any discrepancies with the materials or queries regarding documentation should be reported promptly. We support restocking for long-term orders and adjustments to project specifications, whilst providing ongoing supply chain assurance services.