VB325SP Integrated Circuit Chip HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C.
VB325SP
HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C.
| TYPE | Vcl | Icl | ICC |
| VB325SP | 380V | 10A | 150mA |
■ 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
DESCRIPTION
The VB325SP is a high voltage power integrated circuit made using the STMicroelectronics VIPower™ M1-3 technology, with vertical current flow power darliCM GROUPon and logic level compatible driving circuit. The enable pin allows to externally block the switch when the input is on. Built-in protection circuit for coil current limiting and collector voltage clamping allows the device to be used as smart, high voltage, high current interface in advanced electronic ignition system. If the input signal from the micro happens to remain high, the device protects itself against over-heating by forcing collector current to smooth decrease (low voltage clamp feature) and no undesidered spark occurs (see figure 4).
ABSOLUTE MAXIMUM RATING
| Symbol | Parameter | Value | Unit |
| HVc | Collector voltage (Internally limited) | -0.3 to Vclamp | V |
| IC | Collector current (Internally limited) | 10 | A |
| IC(gnd) | DC current on Emitter Power | ± 10.5 | A |
| VCC | Driving stage supply voltage | -0.3 to 7 | V |
| Is | Driving circuitry supply current | ± 200 | mA |
| Is(gnd) | DC current on Ground pin | ± 1 | A |
| VIN | Input voltage | -0.3 to VCC + 0.3 | V |
| IIN | Maximum Input Current | 100 | mA |
| fIN | Logic Input Frequency in Operative Mode | DC to 150 | Hz |
| VOUT(flag) | Output Voltage Primary Threshold Current Level | -0.3 to VCC + 0.3 | V |
| IOUT(flag) | Flag Output Current | 100 | mA |
| Pmax | Power Dissipation (Tc=25°C) | 125 | W |
| Es/b | Self Clamped Energy during Output Power Clamping (See figure 2) | 275 | mJ |
| VESD | ESD voltage (HVc pin) | ± 4 | KV |
| VESD | ESD voltage (Enable pin) | + 1.5 ; -2 | KV |
| VESD | ESD voltage (Other pins) | ± 2 | KV |
| IBD | Input DarliCM GROUPon Base Current | 150 | mA |
| VBD | Input DarliCM GROUPon Base Voltage | Internally limited | V |
| Tj | Operating Junction Temperature | -40 to 150 | °C |
| Tstg | Storage temperature Range | -55 to 150 | °C |
| VE | Maximum Enable Voltage | -0.3 to 5.5 | V |
| IE | Maximum Enable Current | ± 150 | µA |
BLOCK DIAGRAM
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