VB525SP-E STMicroelectronics

VB525SP-E High voltage ignition coil driver power integrated circuit Features Type V I I cl cl CC 10 VB525SP-E 380 V 10 A 150 mA 1 ECOPACK : lead free and RoHS compliant PowerSO-10 Primary coil voltage internally set Coil current limit internally set Description Logic level compatible input Driving current quasi proportional to collector The VB525SP-E is a high voltage power current integrated circuit made using the STMicroelectronics VIPower M1-3 Single flag on coil current technology, with Darlington and logic level Low voltage clamp thermal shutdown compatible vertical current flow power driving circuit. The enable pin allows to externally block the switch when the input is on. A built-in protection circuit for coil current limiting and collector voltage clamping allows the device to be used as a smart, high voltage, high current interface in advanced electronic ignition systems. If the input signal from the microcontroller happens to remain high, the device protects itself against overheating by forcing collector current to smoothly decrease (low voltage clamp feature) to avoid undesired spark. Table 1. Device summary Order codes Package Tube Tape and real PowerSO-10 VB525SP-E VB525SPTR-E September 2013 Doc ID 18022 Rev 2 1/19 www.st.com 1Contents VB525SP-E Contents 1 Block diagram and pin description . 5 2 Electrical specifications 7 2.1 Absolute maximum rating 7 2.2 Thermal data . 8 3 Electrical characteristics . 9 3.1 Electrical characteristics curves 12 4 Application schematic 13 4.1 Principle of operation 13 4.2 Feedback . 13 4.3 Overvoltage . 14 5 Package information 15 5.1 ECOPACK packages . 15 5.2 PowerSO-10 mechanical data . 15 5.3 Packing information . 17 6 Revision history . 18 2/19 Doc ID 18022 Rev 2