Overview
The VB325SP, manufactured by STMicroelectronics, is a high voltage power integrated circuit designed for driving high energy electronic ignition coils. It utilizes the VIPower™ M1-3 technology with vertical current flow power Darlington and logic level compatible driving circuitry. This device is optimized for use in advanced electronic ignition systems, providing a smart, high voltage, and high current interface. The VB325SP features internal protection circuits for coil current limiting and collector voltage clamping, ensuring reliable and safe operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector Voltage (Internally Limited) | -0.3 to Vclamp | V |
| Collector Current (Internally Limited) | 10 | 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 |
| Operating Junction Temperature | -40 to 150 | °C |
| Storage Temperature Range | -55 to 150 | °C |
Key Features
- Logic level compatible input
- Driving current quasi-proportional to collector current
- Single flag-on coil current
- Low voltage clamp thermal shutdown
- Internal protection circuit for coil current limiting and collector voltage clamping
- Enable pin to externally block the switch when the input is on
- Diagnostic output signal (open emitter)
- Over temperature protection
Applications
The VB325SP is primarily used in advanced electronic ignition systems, particularly for driving high energy electronic ignition coils. It is suitable for various automotive and industrial applications where high voltage and high current switching are required.
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 in advanced electronic ignition systems.
- What technology does the VB325SP use?
The VB325SP uses STMicroelectronics' VIPower™ M1-3 technology with vertical current flow power Darlington.
- What are the key protection features of the VB325SP?
The VB325SP includes internal protection circuits for coil current limiting and collector voltage clamping, as well as low voltage clamp thermal shutdown.
- What is the maximum collector current of the VB325SP?
The maximum collector current is internally limited to 10 A.
- What is the operating junction temperature range of the VB325SP?
The operating junction temperature range is -40°C to 150°C.
- How does the enable pin function in the VB325SP?
The enable pin allows the switch to be externally blocked when the input is on.
- What is the purpose of the diagnostic output signal in the VB325SP?
The diagnostic output signal (open emitter) provides a flag output to indicate the status of the coil current.
- What is the maximum power dissipation of the VB325SP at Tc=25°C?
The maximum power dissipation is 125 W.
- What is the logic input frequency range of the VB325SP?
The logic input frequency range is from DC to 150 Hz.
- What package type does the VB325SP come in?
The VB325SP comes in a PowerSO-10 Exposed Bottom Pad package.
