VB025MSP datasheet(3/7 Pages) STMICROELECTRONICS

Part #	VB025MSP

Description	HIGH VOLTAGE IGNITION COIL DRIVER POWER IC

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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CONNECTION DIAGRAM

PIN FUNCTION

No

NAME

FUNCTION

1-5

GND

Emitter Power Ground

6

GND

Control Ground (*)

7VCC

Logic Supply Voltage

8

BD

Base Darlington

9

INPUT

Logic Input Channel (Internal Pull Down)

10

FLAG

Diagnostic Output Signal (Open Emitter)

TAB

HVC

Primary Coil Output Driver (Open Collector)

(*) Pin 6 must be connected to pins 1-5 externally

ELECTRICAL CHARACTERISTICS (5.3V < Vb < 24V; VCC = 5 V

± 10%; -40oC < Tj < 125oC;

Rcoil = 580 m

Ω; Lcoil = 3.75 mH; unless otherwise specified; see note 1)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Vcl

High Voltage Clamp

Icoil = 6.5 A

320

380

420

V

Vce(sat)

Saturation Voltage of The

Power Stage

Ic = 6.5A;

Vin = 4V

1.5

2

V

ICC(stdby)

Stand-by Supply Current

IN = OFF

10

mA

ICC

DC Logic Current

Vb = 16 V

Ic = 6.5 A f = 100 Hz

Load = Coil

VCC = 5.5V

40

mA

ICC(peak)

Peak DC Logic Current

During On Phase

Ic = 6.5 A

(see figure 1)

100

150

mA

VCC

DC Logic Voltage

4.5

5.5

V

Icl

Coil Current Limit

-40

oC < Tj < 125oC

(see note 2 and figure 1)

8.25

10

A

Ic(leak)

Output leakage Current

IN = OFF

VHVC = 24V

0.8

mA

IC(infl)

Collector Current with

Floating Input

VCC = 5 V

VBat = 13.5 V

RLOAD = 1K

Ω;

Input Floating

0.8

mA

TIc_ctr

Thermal Temperature

Output Current Control

OUT = ON

(see figure 2)

150

(*)

oC

VB025SP

3/7

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