My Inquiry
My Account
STMicroelectronics VB027(6)-11
- Part No.:
- VB027(6)-11
- Manufacturer:
- STMicroelectronics
- Package:
- Pentawatt-5 HV (Bent and Staggered Leads)
- Datasheet:
-
VB027(6)-11.pdf
- Description:
- IC PWR DRVR BIPOLAR 5PENTAWATTHV
- Quantity:
- Payment:
- Shipping:
Inventory:2,162
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VB027(6)-11 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 delivers 9 A collector current limit, 300 V internal clamp voltage, and dual diagnostic flags for coil current monitoring at 4.5 A and 5.8 A thresholds - used in automotive electronic ignition systems to drive primary coils of distributorless ignition systems (DIS).
For engineers reviewing the VB027(6)-11 datasheet, VB027(6)-11 pinout, VB027(6)-11 application, or VB027(6)-11 equivalent, key selection criteria include its internally set coil current limit, HVC output clamping behavior, thermal derating of diagnostic thresholds, and compatibility with 5 V logic-level microcontroller ignition timing control.
Technical Context
The VB027(6)-11 operates as a smart high-side switch for automotive ignition primary coils, using an integrated current-sense resistor (Rsense) and proprietary "quasi-proportional" base drive to maintain stable coil current up to 9 A. Its dual-flag diagnostic output provides real-time feedback on coil current progression through two programmable thresholds.
It features internal overvoltage protection with ±100 V transient tolerance on the battery line, overtemperature detection that shifts the first diagnostic threshold downward by ~1 A above 125 °C, and built-in collector voltage clamping via Zener diodes to limit HVC to 300–400 V during coil flyback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCL (min) | 300 V - Internally clamps HVC output during coil flyback to protect against destructive voltage spikes |
| ICL (max) | 9 A - Maximum sustained collector current before active current limiting engages |
| ID(on) (max) | 130 mA - Power-on supply current at full load, defining driver-stage quiescent consumption |
| VINH | 4–5.5 V - Logic-high input voltage range compatible with standard 5 V microcontrollers |
| Rthj-case | 1.12 °C/W - Junction-to-case thermal resistance enabling direct heatsink mounting for high-power ignition duty cycles |
| td(off) | 25 µs - Turn-off delay time critical for precise dwell control in engine management systems |
| IC(diag1) | 4.25–4.75 A - First diagnostic flag activation level, used for early overcurrent warning |
Pinout & Package
Packaged in Pentawatt HV (horizontal leadform), a 5-pin, single-ended, thermally enhanced power package with exposed metal tab for direct heatsink attachment and optimized thermal path (Rthj-case = 1.12 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Emitter power ground | Low-impedance return path for Darlington emitter current and internal protection circuit reference |
| 2 Vd | Driving stage supply voltage | 5 V ±0.5 V supply for logic and driver circuitry; decoupling required near pin |
| 3 HVC | Primary coil output signal | High-voltage collector output connected directly to ignition coil primary; clamped at 300–400 V |
| 4 INPUT | Logic input channel | CMOS-compatible input controlling Darlington conduction; 4 V min high-level threshold ensures noise immunity |
| 5 DIAG | Diagnostic output signal | Open-collector flag indicating coil current status: high at ≥4.5 A, low at ≥5.8 A |
Key Features
| Feature | Design Value |
|---|---|
| Dual-threshold diagnostic flag | Two independent current-triggered outputs (4.5 A / 5.8 A) enable staged fault response in ECU software |
| Internally clamped HVC output | 300–400 V Zener-based clamp eliminates need for external snubber components in ignition coil interface |
| Quasi-proportional base drive | Base current dynamically scaled to collector current, improving thermal stability under varying coil loads |
| Overtemperature detection | First diagnostic threshold reduced by ~1 A above 125 °C, providing early thermal warning without shutdown |
| Battery transient immunity | Withstands -100 V/2 ms and +100 V/0.2 ms transients per ISO 7637-2, reducing need for external TVS |
Applications
| Distributorless Ignition System (DIS) | Coil-On-Plug (COP) Engine Management |
|---|---|
Use Scenario: High-energy spark generation in 4–8 cylinder gasoline engines without mechanical distributor. IC Role / Device Role / Timing Role: Primary coil driver controlled by ECU dwell timing; provides current-limited, clamped switching for precise spark energy delivery. Use Value: Enables consistent spark energy across RPM range while eliminating external current-sense and clamp components. |
Use Scenario: Individual ignition coil per cylinder in modern inline and V-type engines with tight packaging constraints. IC Role / Device Role / Timing Role: Compact, thermally robust high-side switch mounted directly on coil housing; driven by low-power MCU GPIO. Use Value: Reduces wiring harness complexity and EMI by localizing high-current switching at each coil. |
| Two-Stroke Marine Engine Ignition | Small Engine Electronic Ignition (Lawnmowers, Generators) |
Use Scenario: High-reliability ignition in marine outboard engines exposed to salt corrosion and wide ambient temperature swings. IC Role / Device Role / Timing Role: Ruggedized power interface between microcontroller and high-inductance ignition coil; handles 150 °C junction operation. Use Value: Eliminates mechanical breaker points and supports variable timing advance without external protection circuits. |
Use Scenario: Cost-sensitive, high-volume small gasoline engines requiring simplified ignition electronics. IC Role / Device Role / Timing Role: Single-chip replacement for discrete transistor + zener + resistor ignition drivers. Use Value: Reduces BOM count by 7+ components and improves production yield via integrated diagnostics and thermal margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage ignition driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STGD3HF60 | 600 V, 3 A IGBT with gate driver; no integrated current sensing or dual-flag diagnostics | Requires external current sense amplifier and comparator for diagnostic functionality | Preferred where higher voltage margin is needed but system-level diagnostics are implemented externally |
| UC3846N | Current-mode PWM controller IC; not a power switch - requires external MOSFET and protection circuitry | Used in resonant or variable-frequency ignition topologies, not direct coil-driving configurations | Selected when programmable dwell control and adaptive timing are required beyond fixed-threshold flagging |
Compared with STGD3HF60 and UC3846N, the VB027(6)-11 uniquely integrates current limiting, dual-threshold diagnostics, and 300 V clamping in one package - reducing system component count and simplifying ECU firmware for conventional dwell-controlled ignition.
Availability
VB027(6)-11 is available at Aetrix Electronics and suitable for automotive electronic ignition systems, marine engine control units, and small-engine generator applications requiring stable component supply and long-term lifecycle support.
Supply support for VB027(6)-11 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 belongs to ST's VIPower™ family of intelligent power ICs, designed specifically for high-reliability, high-current automotive actuation - emphasizing integration of protection, diagnostics, and thermal robustness in harsh environments.
FAQ
What is the function of the DIAG pin on VB027(6)-11?
The DIAG pin is an open-collector diagnostic output that signals coil current status: it goes high when collector current reaches ≥4.5 A (first threshold), then switches low when current rises to ≥5.8 A (second threshold). This enables staged fault detection and dwell adjustment in engine control units without external comparators.
Can VB027(6)-11 drive ignition coils with inductance values outside the 7 mH specification?
Yes - the VB027(6)-11's quasi-proportional base drive and current-limiting architecture accommodate coil inductances from 3 mH to 12 mH. However, dwell time must be adjusted in firmware to ensure full current ramp-up to 9 A without exceeding thermal limits, especially at high ambient temperatures.
Is heatsinking required for continuous operation at 9 A collector current?
Yes - at 9 A and 13.5 V supply, power dissipation exceeds 15 W. With Rthj-case = 1.12 °C/W, a heatsink maintaining case temperature ≤100 °C is mandatory for sustained operation. The exposed metal tab must be electrically isolated and thermally bonded using thermal paste and screw-mounting.
Does VB027(6)-11 support PWM-based dwell control?
No - it is designed for on/off dwell control via logic-level INPUT pin. While it can accept pulsed inputs, its internal current limiting and diagnostic flags are optimized for single-pulse, fixed-duration coil energization typical in distributorless and coil-on-plug systems, not high-frequency PWM modulation.
VB027(6)-11 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 FAQ
1.How can I place an order for VB027(6)-11 through Aetrix?
Please submit a Request for Quotation (RFQ) for VB027(6)-11 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 reliable?
The price and inventory of VB027(6)-11 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 is usually 5 days.
3.What payment methods are accepted for VB027(6)-11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VB027(6)-11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VB027(6)-11?
VB027(6)-11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VB027(6)-11 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?
For technical support, including VB027(6)-11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VB027(6)-11 requirements.
6.How does Aetrix verify that VB027(6)-11 is sourced from the original manufacturer or authorized distributors?
All VB027(6)-11 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 meets industry standards.
7.What is the process for return or replacement of VB027(6)-11?
All VB027(6)-11 units undergo pre-shipment inspection (PSI). If there is an issue with VB027(6)-11, 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 part is unused and in its original packaging.
Return procedure for VB027(6)-11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VB027(6)-11 Tags
-
TPS22919DCKR
Texas Instruments
-
MIC2091-1YM5-TR
Microchip Technology
-
MIC2090-1YM5-TR
Microchip Technology
-
TPS22995RZFR
Texas Instruments
-
TPS22975DSGR
Texas Instruments
-
SIP32510DT-T1-GE3
Vishay Siliconix
-
ULN2003D1013TR
STMicroelectronics
-
MIC2005A-1YM5-TR
Microchip Technology
-
MIC2005A-1YM6-TR
Microchip Technology
-
TPS22916BYFPR
Texas Instruments
-
TPS22917DBVR
Texas Instruments
-
ULN2003APWR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
