Overview
The VB525SP-E, also available in the VB525SPTR-E package, is a high voltage power integrated circuit designed by STMicroelectronics using their VIPower™ M1-3 technology. This device is specifically tailored for use in advanced electronic ignition systems, offering a robust and efficient solution for driving high voltage ignition coils. It features a Darlington and logic level compatible vertical current flow power driving circuit, making it suitable for applications requiring precise control over high current and high voltage conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector Voltage (HVc) | -0.3 to Vclamp | V |
| Collector Current (IC) | 10 | A |
| DC Current on Emitter Power (IC(gnd)) | ±10.5 | A |
| Driving Stage Supply Voltage (VCC) | -0.3 to 7 | V |
| Input Voltage (VIN) | -0.3 to VCC + 0.3 | V |
| Maximum Input Current (IIN) | 100 | mA |
| Logic Input Frequency (fIN) | DC to 150 | Hz |
| Power Dissipation (Pmax) at Tc = 25 °C | 125 | W |
| Operating Junction Temperature (Tj) | -40 to 150 | °C |
| Storage Temperature Range (Tstg) | -55 to 150 | °C |
Key Features
- ECOPACK®: Lead-free and RoHS compliant
- 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
- Low voltage clamp thermal shutdown
- Built-in protection circuit for coil current limiting and collector voltage clamping
- Able to withstand various battery line transients
Applications
The VB525SP-E is primarily designed for use in advanced electronic ignition systems, particularly in automotive and industrial applications where high voltage and high current switching are required. It interfaces directly with high energy electronic ignition coils and is driven by a logic level input from an external controller, making it suitable for applications that demand precise control over ignition timing and dwell time.
Q & A
- What is the maximum collector voltage of the VB525SP-E?
The maximum collector voltage (HVc) is internally limited and ranges from -0.3 to Vclamp volts.
- What is the maximum collector current of the VB525SP-E?
The maximum collector current (IC) is 10 amps.
- What is the operating junction temperature range of the VB525SP-E?
The operating junction temperature (Tj) ranges from -40 to 150 degrees Celsius.
- Is the VB525SP-E RoHS compliant?
Yes, the VB525SP-E is ECOPACK®: lead-free and RoHS compliant.
- How does the VB525SP-E protect against overheating?
The device features a low voltage clamp thermal shutdown, which forces the collector current to smoothly decrease to avoid overheating.
- What is the purpose of the FLAG pin in the VB525SP-E?
The FLAG pin provides a diagnostic output signal (open emitter) that indicates when the collector current exceeds a certain threshold.
- Can the VB525SP-E withstand battery line transients?
Yes, the VB525SP-E can withstand various transients on the battery line, including -100 V / 2 msec, +100 V / 0.2 msec, and +50 V / 400 msec.
- What is the typical turn-on and turn-off time of the VB525SP-E?
The typical turn-on time (tON) is 1 to 5 microseconds, and the typical turn-off time (tOFF) is 15 to 25 microseconds.
- How is the coil current controlled in the VB525SP-E?
The coil current is controlled by an internally set current limit, and the driving current is quasi-proportional to the collector current.
- What package options are available for the VB525SP-E?
The VB525SP-E is available in the PowerSO-10 package, with options for tube and tape and reel shipments.
