Overview
The VB525SP-E is a high voltage power integrated circuit designed by STMicroelectronics using their VIPower™ M1-3 technology. This device is specifically tailored for advanced electronic ignition systems, offering a robust and intelligent interface between the control logic and the high energy ignition coil. It features a Darlington and logic level compatible vertical current flow power driving circuit, making it suitable for high voltage and high current applications.
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 |
| High Voltage Clamp | 320 to 420 | V |
| Low Voltage Clamp | 30 to 50 | V |
| Power Stage Saturation Voltage | 1.5 to 2 | V |
| Standby Supply Current | 11 | mA |
| Operating Junction Temperature | -40 to 150 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Thermal Resistance Junction-Case | 1 | °C/W |
| Thermal Resistance Junction-Ambient | 51 | °C/W |
Key Features
- Primary coil voltage internally set
- Coil current limit internally set
- Logic level compatible input
- Driving current quasi proportional to collector current
- Single flag on coil current for diagnostic purposes
- Low voltage clamp thermal shutdown for overheating protection
- ECOPACK®: lead free and RoHS compliant
- Built-in protection circuit for coil current limiting and collector voltage clamping
Applications
The VB525SP-E is primarily designed for use in advanced electronic ignition systems. It interfaces directly with high energy electronic ignition coils and is driven by a logic level input from an external controller. This device 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 VB525SP-E?
The VB525SP-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 VB525SP-E?
The VB525SP-E is made using STMicroelectronics' VIPower™ M1-3 technology.
- What are the key protection features of the VB525SP-E?
The device includes coil current limiting, collector voltage clamping, and low voltage clamp thermal shutdown to protect against overheating and overvoltage conditions.
- What is the maximum collector voltage and current for the VB525SP-E?
The maximum collector voltage is internally limited up to Vclamp, and the maximum collector current is 10 A.
- How does the VB525SP-E handle thermal issues?
The device features thermal shutdown intervention at 150°C and has specified thermal resistances to manage heat dissipation.
- Is the VB525SP-E environmentally friendly?
Yes, the VB525SP-E is ECOPACK® compliant, meaning it is lead free and RoHS compliant.
- What is the operating temperature range for the VB525SP-E?
The operating junction temperature range is -40 to 150°C, and the storage temperature range is -55 to 150°C.
- How does the enable pin function in the VB525SP-E?
The enable pin allows the switch to be externally blocked when the input is on. It can be grounded to enable the input or left floating to keep the output off.
- What are the typical applications of the VB525SP-E?
The VB525SP-E is used in advanced electronic ignition systems, particularly in automotive and industrial applications requiring high voltage and high current switching.
- How does the VB525SP-E handle overvoltage transients?
The device can withstand various overvoltage transients on the battery line, including -100 V / 2 msec, +100 V / 0.2 msec, and +50 V / 400 msec under specified conditions.
