Overview
The VB325SP-E, produced by STMicroelectronics, is a high voltage power integrated circuit designed using the VIPower™ M1-3 technology. This device is primarily intended for use as a high voltage power switch in advanced electronic ignition systems. It features a vertical current flow power Darlington and logic level compatible driving circuit, making it suitable for interfacing directly with high energy electronic ignition coils.
The VB325SP-E includes built-in protection circuits for coil current limiting and collector voltage clamping, ensuring safe and efficient 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 |
| 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
- Built-in protection circuit for coil current limiting and collector voltage clamping
- Ability to withstand battery line transients
- Diagnostic output signal (open emitter)
- Thermal protection
Applications
The VB325SP-E is primarily used in advanced electronic ignition systems, particularly in automotive and industrial applications where high voltage and high current switching are required. It is suitable for driving high energy electronic ignition coils and can be integrated into various systems that need reliable and efficient high voltage power switching.
Q & A
- What is the primary function of the VB325SP-E?
The VB325SP-E is a high voltage power integrated circuit designed to drive high energy electronic ignition coils in advanced ignition systems.
- What technology is used in the VB325SP-E?
The VB325SP-E is made using STMicroelectronics' VIPower™ M1-3 technology with vertical current flow power Darlington.
- What are the key protection features of the VB325SP-E?
The device includes built-in protection circuits for coil current limiting, collector voltage clamping, and thermal shutdown.
- What is the maximum collector current of the VB325SP-E?
The maximum collector current is internally limited to 10 A.
- What is the operating junction temperature range of the VB325SP-E?
The operating junction temperature range is -40°C to 150°C.
- How does the VB325SP-E handle thermal protection?
The device features a low voltage clamp thermal shutdown to prevent overheating.
- What is the maximum power dissipation of the VB325SP-E at Tc=25°C?
The maximum power dissipation is 125 W.
- Can the VB325SP-E withstand battery line transients?
Yes, it can withstand various battery line transients, such as -100V/2msec and +100V/0.2msec.
- What is the purpose of the diagnostic output signal?
The diagnostic output signal (open emitter) provides feedback when the collector current exceeds a certain threshold.
- What is the package type of the VB325SP-E?
The VB325SP-E is packaged in a PowerSO-10 Exposed Bottom Pad.
