VB325SP is a high-voltage ignition coil driver power IC manufactured by STMicroelectronics, designed for automotive applications. Here are its key technical specifications:

Key features

• Technology: VIPower™ M1-3 Darlington power with vertical current flow
• Function: Drives ignition coils in electronic ignition systems
• Logic-level input: Compatible with standard logic signals
• Enable pin: Allows external control to disable switching
• Protection: Built-in coil current limiting and collector voltage clamping
• Thermal shutdown: Prevents overheating

Electrical characteristics

• Collector voltage (Vcl): Internally limited to 380 V
• Collector current (Icl): Internally limited to 10 A
• Control supply voltage (Vcc): Up to 7 V
• Input current: up to 100 mA
• Power dissipation: up to 125 W at 25 °C
• Operating temperature range: –40 °C – +150 °C
• Package: PowerSO-10

Pin functions

• GND (emitter power ground)
• Enable
• Vcc (logic supply)
• BD (base darlington)
• Input (logic input channel)
• Diagnostic input