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STMicroelectronics VB027(6)-11-E
- Part No.:
- VB027(6)-11-E
- Manufacturer:
- STMicroelectronics
- Package:
- Pentawatt-5 HV (Bent and Staggered Leads)
- Datasheet:
-
VB027(6)-11-E.pdf
- Description:
- IC PWR DRVR BIPOLAR 5PENTAWATTHV
- Quantity:
- Payment:
- Shipping:
Inventory:1,534
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Product details
Overview
VB027(6)-11-E from STMicroelectronics is a high-voltage ignition coil driver power IC built on VIPower™ technology, integrating a vertical current flow power Darlington with logic-level input compatibility. It features internally set primary coil voltage clamping (300–400 V), collector current limiting (8–9 A), and dual-threshold diagnostic flagging for coil current monitoring in electronic ignition systems.
For engineers reviewing the VB027(6)-11-E datasheet, VB027(6)-11-E pinout, VB027(6)-11-E application, or VB027(6)-11-E equivalent, this device is selected for automotive engine control units requiring robust high-energy coil switching, real-time overcurrent diagnostics, thermal-aware dwell control, and battery-transient resilience (±100 V).
Technical Context
The VB027(6)-11-E operates as a smart high-side switch for automotive ignition coils, using an integrated Rsense-based current limiter and Zener-clamped HVC output to manage primary coil energy delivery and flyback voltage suppression. Its quasi-proportional base drive ensures stable saturation under varying temperature and load conditions.
Two diagnostic flags provide real-time coil current feedback: first threshold at 4.5 A (shifts down ~1 A above 125 °C for overtemperature detection), second at 5.8 A for forced shutdown. The device supports logic-compatible input (0–0.8 V low / 4–5.5 V high) and drives the coil via a single HVC output pin with 1.5 V saturation voltage at 6 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCL (min) | 300 V - Internally clamps primary coil flyback voltage to prevent destructive overvoltage during switch-off |
| ICL (max) | 9 A - Maximum sustained collector current limit protects coil and driver under overload or short-circuit |
| VCG(sat) | 1.5 V @ 6 A - Low saturation voltage minimizes conduction loss and thermal stress during dwell phase |
| ID(on) | 130 mA - Power-on supply current for internal driver stage, enabling efficient control with minimal auxiliary power draw |
| Tj operating | −40 to +150 °C - Full automotive-grade junction temperature range supports under-hood deployment without derating |
| Rthj-case | 1.12 °C/W - Low thermal resistance enables direct heatsink mounting for high-duty-cycle ignition operation |
| VINH/VINL | 4–5.5 V / 0–0.8 V - TTL/CMOS-compatible input thresholds simplify interface with microcontroller ignition timing outputs |
Pinout & Package
Packaged in Pentawatt HV (horizontal leadform, 5-pin), the VB027(6)-11-E uses a thermally optimized power package with exposed metal tab for direct heatsink attachment and low Rthj-case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Emitter power ground | Low-impedance return path for power Darlington emitter; must be connected to chassis or power ground plane |
| 2 Vd | Driving stage supply voltage | 5 V ±0.5 V supply for internal logic and driver circuitry; decoupling capacitor required near pin |
| 3 HVC | Primary coil output signal | High-voltage collector output driving ignition coil primary; clamped internally to ≥300 V |
| 4 INPUT | Logic input channel | CMOS/TTL-compatible enable input controlling dwell time; high = coil energized, low = switch-off |
| 5 DIAG | Diagnostic output signal | Open-collector flag output indicating first (≥4.5 A) or second (≥5.8 A) current threshold crossing |
Key Features
| Feature | Design Value |
|---|---|
| Dual-threshold diagnostic flagging | Two discrete current thresholds (4.5 A and 5.8 A) enable progressive fault detection and controlled shutdown before thermal runaway |
| Internally clamped HVC output | 300–400 V Zener clamp eliminates need for external snubber diodes while maintaining precise flyback control |
| VIPower™ monolithic integration | Vertical power Darlington + logic driver + protection circuits on single die reduces PCB footprint and interconnect failure risk |
| Overtemperature-aware flag shift | First diagnostic threshold drops ~1 A above 125 °C, providing early thermal warning without disabling functionality |
| Battery transient immunity | Withstands −100 V/2 ms and +100 V/0.2 ms transients per ISO 7637-2, ensuring reliability in harsh automotive electrical environments |
Applications
| Engine Control Unit (ECU) | Direct Ignition System (DIS) |
|---|---|
Use Scenario: Microcontroller-driven dwell control and spark timing in gasoline engine ECUs. IC Role / Device Role / Timing Role: High-side power switch interfacing MCU PWM output to ignition coil primary winding. Use Value: Enables precise, software-controlled dwell time with real-time current feedback to prevent coil saturation and overheating. |
Use Scenario: Coil-on-plug (COP) or wasted-spark DIS architectures eliminating distributor and secondary wiring. IC Role / Device Role / Timing Role: Standalone coil driver receiving ignition trigger signals directly from crank/cam sensors. Use Value: Reduces EMI and voltage drop by shortening high-current paths; dual-flag diagnostics support misfire detection. |
| Start-Stop System Ignition | Heavy-Duty Diesel Preheat Control |
Use Scenario: Rapid re-ignition after engine stop in start-stop vehicles requiring fast, reliable coil activation. IC Role / Device Role / Timing Role: High-reliability coil driver handling frequent cold-start cycles and elevated ambient temperatures. Use Value: Thermal flag shift and wide Tj range ensure consistent dwell control across repeated stop/start events. |
Use Scenario: Glow plug or preheater coil control in diesel engines where high-current pulses demand robust switching. IC Role / Device Role / Timing Role: High-current power switch managing preheat duration and current ramp-up profiles. Use Value: Internal current limiting prevents glow plug burnout; diagnostic output enables closed-loop preheat timing adjustment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage ignition coil driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STGD3HF60L | 600 V, 3 A IGBT with discrete gate driver; no integrated current sensing or dual-flag diagnostics | Requires external sense resistor, comparator, and protection logic; higher BOM count and layout complexity | Preferred when higher voltage margin (>400 V) is needed and system-level diagnostics are implemented externally |
| UC2907N | Analog current-mode controller IC; requires external MOSFET and sense amplifier; no integrated power stage | Supports programmable current limits and variable frequency; lacks monolithic thermal protection and flag outputs | Suitable for custom ignition designs requiring adjustable dwell profiles and multi-coil synchronization |
Compared with STGD3HF60L and UC2907N, the VB027(6)-11-E delivers lower system cost and faster time-to-market through monolithic integration of power switching, current limiting, dual-threshold diagnostics, and thermal awareness-eliminating discrete protection components and calibration overhead.
Availability
VB027(6)-11-E is available at Aetrix Electronics and suitable for engine control units, direct ignition systems, start-stop vehicle ignition modules, and heavy-duty diesel preheat controllers requiring stable component supply across automotive production lifecycles.
Supply support for VB027(6)-11-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management solutions with vertically integrated manufacturing.
The VB027(6)-11-E belongs to ST's VIPower™ family of intelligent power ICs, designed specifically for high-energy automotive actuators requiring integrated protection, diagnostics, and ruggedized operation in under-hood environments.
FAQ
What is the function of the DIAG pin?
The DIAG pin is an open-collector diagnostic output that transitions high when coil current exceeds 4.5 A (first threshold) and low when current reaches 5.8 A (second threshold). It provides real-time feedback to the microcontroller for dwell optimization and fault detection without external circuitry. Its 1 µs rise/fall times support fast response to current transients during ignition events.
Can VB027(6)-11-E drive multiple ignition coils simultaneously?
No - the VB027(6)-11-E is a single-channel high-side driver rated for one ignition coil primary winding. Driving multiple coils requires separate VB027(6)-11-E devices per coil or a multi-channel alternative like the L9369-TR. Shared ground or supply lines between channels would compromise current sensing accuracy and thermal management.
What is the purpose of the Vd pin and its voltage tolerance?
The Vd pin supplies 5 V ±0.5 V to the internal logic and driver stage. It must be decoupled with a minimum 100 nF ceramic capacitor placed within 5 mm of the pin. Operation outside 4.5–5.5 V risks incorrect flag timing, reduced drive strength, or latch-up; it is not intended for battery rail connection.
How does the overtemperature flag shift affect system behavior?
Above 125 °C, the first diagnostic threshold shifts downward by ~1 A (e.g., from 4.5 A to ~3.5 A), enabling early thermal warning without disabling operation. This allows the MCU to reduce dwell time proactively, lowering average power dissipation. The shift is not a shutdown mechanism but a predictive thermal indicator for closed-loop thermal management.
VB027(6)-11-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- Pentawatt-5 HV (Bent and Staggered Leads)
- Series:
- VIPower™
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- Low Side
- Output Type:
- Bipolar
- Interface:
- Parallel
- Voltage - Load:
- 4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- -
- Rds On (Typ):
- -
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 5-PENTAWATT HV
VB027(6)-11-E FAQ
1.How can I place an order for VB027(6)-11-E through Aetrix?
Please submit a Request for Quotation (RFQ) for VB027(6)-11-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for VB027(6)-11-E reliable?
The price and inventory of VB027(6)-11-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VB027(6)-11-E is usually 5 days.
3.What payment methods are accepted for VB027(6)-11-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VB027(6)-11-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VB027(6)-11-E?
VB027(6)-11-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VB027(6)-11-E order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for VB027(6)-11-E?
For technical support, including VB027(6)-11-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VB027(6)-11-E requirements.
6.How does Aetrix verify that VB027(6)-11-E is sourced from the original manufacturer or authorized distributors?
All VB027(6)-11-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VB027(6)-11-E meets industry standards.
7.What is the process for return or replacement of VB027(6)-11-E?
All VB027(6)-11-E units undergo pre-shipment inspection (PSI). If there is an issue with VB027(6)-11-E, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The VB027(6)-11-E part is unused and in its original packaging.
Return procedure for VB027(6)-11-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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