VB024 STMicroelectronics Integrated Circuit (Other) In Stock
VB024 is a high-voltage ignition coil driver power IC from STMicroelectronics featuring a Schmitt trigger input, open-collector output with current sinking capability, and built-in transient and overcurrent protection in a 7-lead power package. It is a latch-based peripheral driver designed for driving ignition coils in automotive engine management systems with robust protection against high-voltage transients. Available through authorized distributors with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 7
- Lifecycle
- OBSOLETE
- Datasheet
- VB024 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Built-in transient and overcurrent protection safeguarding the ignition coil driver circuit from high-voltage spikes common in automotive ignition systems
- Schmitt trigger input providing hysteresis for noise-immune switching from ECU digital control signals in electrically noisy engine compartment environments
- Open-collector current-sink output enabling direct drive of high-energy ignition coils with latch-based control for reliable single-cylinder spark generation
Applications
The VB024 is designed for use in automotive engine management systems as a single-cylinder ignition coil driver, providing the high-voltage switching capability needed to energize and discharge inductive coil loads for spark generation. Its built-in overcurrent and transient protection make it suitable for direct connection to ignition coil primary windings in passenger vehicles, motorcycles, and small engine applications where the driver IC must survive high-voltage flyback spikes of hundreds of volts. Engineers also use it in aftermarket ignition control modules and distributor replacement systems where a compact, protected coil driver in a 7-lead power package simplifies the PCB design.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Built-in Protections | TRANSIENT; OVER CURRENT |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LATCH BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PZFM-T7 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-COLLECTOR |
| Output Current Flow Direction | SINK |
| Output Peak Current Limit-Nom | 8A |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 16V |
| Supply Voltage1-Min | 5.5V |
| Supply Voltage1-Nom | 12V |
| Surface Mount | NO |
| Terminal Finish | TIN LEAD |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | ZIG-ZAG |
| Turn-off Time | 80 µs |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Frequently Asked Questions
What built-in protections does the VB024 include, and why are they critical in automotive ignition systems?
The VB024 includes built-in transient and overcurrent protection, which are essential in automotive ignition applications where the coil primary circuit generates high-voltage flyback spikes of several hundred volts when the coil current is interrupted to fire the spark plug. Without these protections, the driver IC would be destroyed within seconds of operation, making the VB024's integrated protection a key reliability feature for ignition coil driver designs.
How does the Schmitt trigger input of the VB024 improve noise immunity in engine management applications?
The Schmitt trigger input of the VB024 adds hysteresis to the switching threshold, which prevents the ignition driver from false-triggering due to electrical noise and ground bounce common in automotive engine compartments. In an environment where alternators, electric motors, and high-voltage ignition wiring generate significant electromagnetic interference, this Schmitt trigger hysteresis ensures that only valid ECU control signals above the threshold voltage trigger a coil firing event.
What output configuration does the VB024 use, and how does this suit it for single-coil ignition drive circuits?
The VB024 uses an open-collector current-sink output, which allows it to directly pull down the ignition coil primary winding to ground when activated, causing the coil to build up a magnetic field over the dwell period. When the open-collector output releases, the collapsing magnetic field generates the high-voltage pulse needed to fire the spark plug, making the current-sink open-collector topology the standard choice for single-cylinder latch-based ignition coil driver ICs.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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