VNQ660SPTR-E - Quad 6A High-Side Smart Power Switch | STMicroelectronics
MPN: VNQ660SPTR-E ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.94 | $8.94 |
| 10 | $8.05 | $80.50 |
| 100 | $6.71 | $671.00 |
| 500 | $5.92 | $2,960.00 |
| 1,000 | $5.37 | $5,370.00 |
VNQ660SPTR-E Overview
A high-side smart power switch is an integrated semiconductor relay that sits between a positive supply rail and a load (typically a resistive or inductive load referenced to ground). Within the broader power-management hierarchy, it belongs to the voltage-protection and distribution family - one level above simple power MOSFETs, equivalent in function to an electromechanical relay but with diagnostic feedback, faster switching, and no moving contacts. Quad-channel parts combine four independent switches and their protection logic into one package, reducing PCB area in body-control modules where multiple bulbs, solenoids, or motor winders share a common positive feed.
The VNQ660SPTR-E distinguishes itself with very low quiescent current draw in standby, integrated charge pump for true high-side drive (no bootstrap capacitor required), and an analog status flag that reflects fault conditions per channel. According to the ST datasheet VNQ660SP family document, the device is rated for a maximum on-state resistance of 40 mOhm at 25C on each of its four channels, with continuous per-channel current up to 6A when properly heat-sunk through the PowerSO exposed pad. The architecture is built on a vertical double-diffused MOS process, which yields low RDS(on) and high avalanche ruggedness for switching of inductive loads such as automotive lamps and solenoids.
Typical applications include automotive body-control modules for driving lamps, motors, and solenoids; industrial PLC digital output cards; multi-channel relay replacement in HVAC and appliance controls; and any 12V/24V system where a logic-level signal must switch high-current loads without a discrete MOSFET+freewheel-diode+resistor network. Power dissipation is dominated by I-squared-R across the FET, so a 6A continuous load per channel demands a substantial copper area bonded to the exposed bottom pad.
When designing with this part, never float the input pins: tie unused inputs through a 10k resistor to logic high so the corresponding output stays off. Also verify that the supply decoupling capacitor is rated for the load-dump transient expected in automotive environments - a 100V-rated 100nF X7R ceramic directly from VCC to GND close to the IC pins is a typical datasheet recommendation.
This page synthesizes distributor pricing snapshots, a curated set of pin-compatible drop-in alternates, recommended companion parts, and practical design notes - data not assembled on a single manufacturer or distributor page - to help engineers compare options quickly and avoid the most common VNQ660SPTR-E integration mistakes.
Drop-in alternatives for VNQ660SPTR-E — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with VNQ660SPTR-E (same form factor and footprint) — differing in Package, Technology, Number of Channels, Function, Input Compatibility.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
VNQ660SPTR
✅ Drop-In📋 Reference alternative (not in catalog)
VNQ660SP13TR
✅ Drop-In📋 Reference alternative (not in catalog)
VNQ660SP-E
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →VNQ690SPTR-E
✅ Drop-In📋 Reference alternative (not in catalog)
VNQ600SP
✅ Drop-In📋 Reference alternative (not in catalog)
VNQ660SPTR-E Maximum Ratings & Electrical Characteristics
| Function | Quad-channel high-side solid-state relay |
| Technology | ST VIPower M0-3 (vertical DMOS) |
| Number of Channels | 4 |
| Switch Type | High-side N-channel power MOSFET |
| Supply Voltage (VCC) | 6 V to 36 V |
| Maximum Continuous Output Current (per channel) | 6 A |
| On-State Resistance (RDS(on)) | 40 mOhm typical (per channel) |
| Input Compatibility | CMOS logic-level inputs |
| Protection Features | Thermal shutdown, overvoltage clamp, undervoltage shutdown, open-load detection (off state), reverse battery protection |
| Status Feedback | Analog status flag per channel |
| Operating Temperature | -40 C to +125 C |
| Package | PowerSO-10 with exposed bottom pad |
| Mounting Type | Surface Mount |
| Maximum Power Dissipation | 113.6 W (with proper thermal design) |
| RoHS Status | Compliant |
VNQ660SPTR-E Pin Configuration
| Pin 1 | OUT1 — Channel 1 high-side output to load |
| Pin 2 | OUT2 — Channel 2 high-side output to load |
| Pin 3 | GND — Logic ground reference for inputs and status |
| Pin 4 | IN1 — Channel 1 CMOS input (active high) |
| Pin 5 | IN2 — Channel 2 CMOS input (active high) |
| Pin 6 | IN3 — Channel 3 CMOS input (active high) |
| Pin 7 | IN4 — Channel 4 CMOS input (active high) |
| Pin 8 | STATUS — Analog fault flag output (open-drain, one shared line per pair) |
| Pin 9 | VCC — Supply voltage 6V to 36V |
| Pin 10 | OUT3/OUT4 — Channel 3 and 4 high-side outputs (PowerSO tab also carries VIN) |
Per-Channel Safe Operating Area (VNQ660SPTR-E)
Typical Applications
VNQ660SPTR-E is suitable for 6 applications: Automotive Body Control Modules (BCM), Industrial PLC Digital Output Modules, HVAC and Appliance Control Boards, Automotive Lighting Modules (Front/Rear Lamps), USB-C Power Delivery and 24V Bus Distribution, Multi-Channel Smart Relay Replacement.
Automotive Body Control Modules (BCM)
The VNQ660SPTR-E is widely used in automotive BCMs to drive four 12V loads such as headlamp bulbs, parking lamps, turn signals, and accessory relays from a single 100-pin ECU. Its 6A continuous per-channel rating covers high-power H7 bulbs and small DC motors, while the 40 mOhm RDS(on) keeps dissipation manageable at typical 5A operating currents. The integrated open-load detection in the off state enables the BCM to report bulb-out failures to the driver via the analog status flag. The 6V-36V VCC range absorbs load-dump and jump-start transients without external TVS, simplifying the BCM power-input section. For designers: place the part near the BCM connector short traces to the lamps, bond the exposed pad to >= 1 sq inch of 2oz copper for thermal headroom, and tie the analog status flag to a 10k pull-up to 5V then to the MCU ADC. Compared with discrete MOSFET+TVS+diode solutions, the VNQ660SPTR-E saves roughly 80% PCB area and adds diagnostic features that elecromechanical relays cannot.
Recommended
Industrial PLC Digital Output Modules
In 24V industrial PLC digital output modules, the VNQ660SPTR-E drives four solenoid or relay coils from a single 24V rail without external bootstrap or charge-pump components. Its 36V continuous rating handles the worst-case 24V supply plus transients on long cable runs, and its high-side drive topology means one common ground return suffices for all four outputs (simplifying field wiring). The analog status flag per channel reports wire-break (open-load), short-circuit, and thermal events back to the PLC processor, which is essential for IEC 61131-2 industrial diagnostics. For designers: choose the VNQ660SPTR-E over an optocoupler+MOSFET+TVS triad when channel count is 4+ to save PCB area; use 100 nF 100V-rated X7R ceramic on each VCC pin for noisy 24V rails; and read all four status flags with the MCU ADC in a round-robin pattern at 100 Hz to detect faults within the PLC scan time.
Recommended
HVAC and Appliance Control Boards
The VNQ660SPTR-E drives four loads in HVAC and white-goods appliance controls such as blower motor relays, solenoid valves, damper actuators, and indicator lamps from a 24V AC-DC rail. Its integrated thermal shutdown protects the relay coils and the part itself from locked-rotor currents, while the open-load detection flags a failed damper actuator even when the system appears to be running. The 6A per-channel continuous rating covers modest inductive loads typical of appliance control, and the quad-channel integration keeps the BOM cost and PCB area lower than four single-channel solid-state relays. For designers: best suited for multi-load appliance controllers where each channel is below 6A continuous and ambient stays under 70C; add flyback diodes externally only for very long-turn-off inductive loads (relays in this part already include avalanche ruggedness for typical solenoid decay).
Recommended
Automotive Lighting Modules (Front/Rear Lamps)
In standalone automotive lighting ECUs such as adaptive headlamp controllers and trailer tail-lamp modules, the VNQ660SPTR-E drives up to four lamp circuits (high beam, low beam, DRL, turn signal) with built-in bulb-out detection. The 6A continuous per-channel current handles H7, H8, and P21W bulbs comfortably with thermal margin, while the open-load detection in the off state catches the cold-filament inrush current signature for accurate diagnostics during the BCM self-test. The 6V-36V VCC range tolerates jump-start and load-dump, both of which occur in real-world automotive environments without external protection components. For designers: use 4-pin automotive connectors with sealed housings for lamp output, drive PWM on input pins at 200-400 Hz for DRL brightness control, and feed the analog status flag through an RC low-pass filter to the MCU ADC for noise-free diagnostics.
Recommended
USB-C Power Delivery and 24V Bus Distribution
Although intended primarily for automotive/industrial loads, the VNQ660SPTR-E is sometimes used as a 24V bus distribution switch inside power-over-Ethernet or industrial USB-C hub assemblies where it provides channel-by-channel load-disconnect with diagnostics back to the host controller. The 6A per-channel rating fits downstream DC-DC converter inputs, and the integrated reverse-battery protection through the exposed pad guards against field-wiring mistakes during installation. The 40 mOhm RDS(on) keeps distribution losses under 1.5W at 6A, helping meet efficiency budgets in enclosed power supplies. For designers: leverage the open-load detection to identify disconnected downstream rails for fault-tolerant restart; OR the four status flags to prioritize which channel to retry; and bond the exposed pad to a 2-layer board top copper pour for adequate thermal dissipation in sealed enclosures.
Recommended
Multi-Channel Smart Relay Replacement
A direct use case: the VNQ660SPTR-E replaces four 12V automotive relays with one IC, eliminating audible clicks, mechanical wear, and contact bounce in applications such as convertible top controls, seat adjustments, and window lifters. The CMOS-compatible inputs let a low-power MCU drive all four channels directly without driver transistors, and the analog status flag per channel replaces the relay's auxiliary contact with a richer diagnostic signal. The 6A continuous rating handles window-lifter motors up to ~70W at 12V, which is the sweet spot of mid-size car accessories. For designers: parallel two channels to lift the current to 12A for power-window motors (verify thermal with copper), and add a 100uF/50V electrolytic + 100nF X7R ceramic on VCC to absorb motor inrush. Diagnostic reporting via status flag to MCU enables fault-code P0562 OBD-II compliance out of the box.
Recommended
Recommended Products Summary
Engineering reference data for VNQ660SPTR-E — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VNQ660SPTR | VNQ660SP13TR | VNQ660SP-E | VNQ690SPTR-E | VNQ600SP |
|---|---|---|---|---|---|---|
| Package | PowerSO-10 (exposed pad) | PowerSO-10 (exposed pad) - same | PowerSO-10 (exposed pad) - same | PowerSO-10 (exposed pad) - same | PowerSO-10 (exposed pad) - same | PowerSO-10 (exposed pad) - same |
| Brand | STMicroelectronics | STMicroelectronics (same) | STMicroelectronics (same) | STMicroelectronics (same) | STMicroelectronics (same) | STMicroelectronics (same) |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Per-Channel Continuous Current | 6 A | 6 A | 6 A | 6 A | 9 A | 6 A |
| On-State Resistance (RDS(on)) | 40 mOhm | 40 mOhm | 40 mOhm | 40 mOhm | 40 mOhm | ~65 mOhm |
| Supply Voltage Range | 6 V to 36 V | 6 V to 36 V | 6 V to 36 V | 6 V to 36 V | 6 V to 36 V | 6 V to 36 V |
| Open-Load Detection | Yes (off state) | Yes | Yes | Yes | Yes | Yes |
| Thermal Shutdown | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx Unit Price (1 pc) | $8.94 | Similar (tube pack) | Similar | Similar (tube pack) | Slightly higher | Lower (legacy) |
Key Differentiators
- True quad-channel integration in PowerSO-10 with full diagnostics (vs VNQ690SPTR-E)
- Diagnosable status flag per channel pair (vs Discrete N-channel MOSFET + TVS)
- Reverse-battery protection via exposed pad (vs VNQ600SP (older VIPower variant))
Design Notes
Estimated: at 6A continuous per channel and 40 mOhm RDS(on), each channel dissipates ~1.44W (I2R), giving ~5.76W total for four channels. Solder the PowerSO-10 exposed bottom pad to at least 1 square inch of 2-oz copper (top layer, continuous pour, no thermal relief pattern) to keep junction temperature rise below 50C above ambient. Without the pad bonded to copper, the part will enter thermal shutdown within seconds at full load. If higher ambient >85C or all four channels loaded concurrently, add a heat-spreader copper pour on the bottom layer stitched with 0.3mm thermal vias.
Place the input pull-up/pull-down resistors (10k typical to VCC for unused inputs to keep them off) within 3mm of the IN1-IN4 pins. Route the analog STATUS pin away from switching output traces and add a 10k pull-up resistor plus a 10nF RC filter to the MCU ADC for noise-free diagnostics. Keep high-current output traces (OUT1-OUT4) short and wide (>= 1.5mm per ampere rule of thumb) to minimize parasitic inductance, which causes ringing when driving inductive loads.
Three common VNQ660SPTR-E pitfalls: (1) Do not float any input pin - an un-driven INx pins leaves the channel in undefined state and can cause partial conduction heating the FET. (2) Do not skip the VCC decoupling ceramic - the part cannot ride through 100V load-dump transients without the recommended 100nF X7R 100V-rated bypass directly from VCC to GND close to the pins. (3) Do not exceed the per-channel 6A rating - simultaneous four-channel load current of 24A is NOT supported thermally; use VNQ690SPTR-E or VNQ500PEPTR-E for that requirement.
Compliance Information
RoHS compliant per ST product page. AEC-Q100 automotive qualification should be confirmed with ST - some VNQ660SP family variants carry automotive grade designation. Lead-free and halogen-free per ST environmental data.
