VB125SP
VB125SP is HIGH VOLTAGE IGNITION COIL DRIVER POWER IC manufactured by STMicroelectronics.
DESCRIPTION
The VB125SP is a high voltage power integrated circuit made using SGS-THOMSON Microelectronics Vertical Intelligent Power Technology, with vertical current flow power darlington and logic level patible driving circuit. The VB125SP can be directly biased by using the 12V battery voltage, thus avoiding to use a low voltage regulator. It has built-in protection circuits for coil current limiting and collector voltage clamping. It is suitable as smart, high voltage, high current interface in advanced electronic ignition system. BLOCK DIAGRAM VCC 6 INPUT 9
Power SO-10
CS 8
DRIVER
FLAG FLAG 10 VOLTAGE REFERENCE THERMAL PROTECTION
RSENSE
7 GND (Control)
(- ) Pins 1...5 September 1997
- GND (Power)
1/8
This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice.
ABSOLUTE MAXIMUM RATING
Symbol HV C IC VCC ICC IS VIN PTOT VESD VESD Tj TSTG Parameter Collector Voltage (Internally Limited) Collector Current (Internally Limited) Driving Stage Supply Voltage Driving Circuitry Supply Current Logic Circuitry Supply Ccurrent Input Voltage Power Dissipation ESD Voltage (HVC Pin) ESD Voltage (Other Pin) Operating Junction Temperature Storage Temperature Range Value -0.3V to VCLAMP 10 -0.2 to 40 400 100 -0.3 to 6 TBD -4 to 4 -2 to 2 -40 to 150 -55 to 150 Unit V A V m A m A V W KV KV °C °C
THERMAL DATA
Rthj-case Rthj-amb Thermal Resistance Junction
- Case Thermal Resistance Junction
- Ambient MAX MAX 1.2 62.5 °C/W °C/W
CONNECTION DIAGRAM HVC
VCC GND Cs INPUT FLAG
GND GND GND GND
PIN FUNCTION
No 1-5 6 7 8 9 10 TAB (- ) Pin 6 must be connected to pins 1-5 externally Name GND VCC GND CS INPUT FLAG HVC FUNCTION Emitter Power Ground Logic Supply Voltage Control Ground (- ) Logic Level Supply Voltage Filter Capacitor Logic Input Channel Diagnostic Output Signal Primary Coil Output Driver
2/8
ELECTRICAL CHARACTERISTICS (Vbat = 6 to 24V;...
