Overview
The STMicroelectronics VB325SP is a high voltage power integrated circuit designed using the VIPower™ M1-3 technology. This device is primarily intended as a high voltage power switch for driving high energy electronic ignition coils. It features a vertical current flow power darlington and a logic level compatible driving circuit, making it suitable for advanced electronic ignition systems. The VB325SP includes built-in protection circuits for coil current limiting and collector voltage clamping, ensuring reliable and safe operation. It also incorporates thermal shutdown and low voltage clamp features to prevent overheating and undesired sparks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector Voltage (Internally Limited) | -0.3 to Vclamp | V |
| Collector Current (Internally Limited) | 10 | A |
| DC Current on Emitter Power | ± 10.5 | A |
| Driving Stage Supply Voltage | -0.3 to 7 | V |
| Driving Circuitry Supply Current | ± 200 | mA |
| Input Voltage | -0.3 to VCC + 0.3 | V |
| Maximum Input Current | 100 | mA |
| Logic Input Frequency in Operative Mode | DC to 150 | Hz |
| Power Dissipation (Tc=25°C) | 125 | W |
| High Voltage Clamp | 320 to 420 | V |
| Low Voltage Clamp | 30 to 50 | V |
| Power Stage Saturation Voltage | 1.5 to 2 | V |
Key Features
- 1:1 bipolar switching ratio
- 10A output current capability
- Low RDS(on) and high efficiency to minimize heat generation
- Non-inverting input configuration for easy interfacing with microcontrollers or other ICs
- Status flag output to monitor device operating conditions
- Over-temperature fault protection for reliable operation
- Internally set primary coil voltage and coil current limit
- Logic level compatible input
- Driving current quasi-proportional to collector current
- Single flag-on coil current and low voltage clamp thermal shutdown
Applications
- Automotive applications: battery chargers, motor control circuits, and load switches
- Industrial applications: power supplies, motor controllers, and load management systems
- Consumer applications: AC/DC converters, motor drives, and power amplifiers
- Advanced electronic ignition systems
Q & A
- What is the primary function of the VB325SP?
The VB325SP is a high voltage power integrated circuit designed to drive high energy electronic ignition coils.
- What technology is used in the VB325SP?
The VB325SP is made using STMicroelectronics' VIPower™ M1-3 technology with vertical current flow power darlington.
- What is the maximum collector current of the VB325SP?
The maximum collector current is internally limited to 10A.
- What is the range of the driving stage supply voltage?
The driving stage supply voltage ranges from -0.3V to 7V.
- Does the VB325SP have thermal protection?
- What is the logic input frequency range of the VB325SP?
The logic input frequency range is from DC to 150 Hz.
- What are the typical applications of the VB325SP?
The VB325SP is used in automotive, industrial, and consumer applications, including ignition systems, power supplies, and motor controllers.
- How does the VB325SP handle overvoltage transients?
The VB325SP can withstand various overvoltage transients, including -100V/2msec and +100V/0.2msec with specific resistance conditions.
- What is the package type of the VB325SP?
The VB325SP comes in a PowerSO-10 package with an exposed bottom pad.
- Does the VB325SP have a status flag output?
