VB027SP-E STMicroelectronics, VB027SP-E Datasheet

VB027SP-E

Manufacturer Part Number

VB027SP-E

Description

IC DVR PWR COIL 380V POWERSO10

Manufacturer

STMicroelectronics

Series

VIPower™r

Datasheets

1.STD30NF04LT.pdf (60 pages)

2.VB027SPTR-E.pdf (7 pages)

Specifications of VB027SP-E

Current - Output

Voltage - Supply

4.5 V ~ 5.5 V

Mounting Type

Surface Mount

Package / Case

PowerSO-10 Exposed Bottom Pad

Product

Electronic Ignition Drivers

Mounting Style

Through Hole

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Operating Temperature

Applications

Number Of Outputs

Voltage - Load

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

VB027SP-E

Quantity:

1 600

Current page: 1 of 7
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ABSTRACT

This paper describes a solid state integrated ignition

driver circuit designed to drive a high energy coil in a

microprocessor based EMS (Engine Management

System) under the direct control of a micro-controller.

The paper begins with a review of the principal

characteristics of SGS-THOMSON Microelectronics'

Vertical Intelligent Power technology, and then

introduces the VB027, a novel fully-protected switch

for electronic ignition which directly interfaces with a

microprocessor controller.

INTRODUCTION

The trend for cleaner, lean-burn engines has lead to

the increased use of microprocessor-based Engine

Management Systems (EMS) with electronic ignition.

The main requirements for the power switch in ignition

applications are for an easy to drive, rugged device

capable of blocking 350 to 400 Volts and conducting

8 to 9 Amperes with less than a 2 Volts drop. Bipolar

Darlington Transistors have traditionally been used,

but recently alternatives have appeared on the scene.

VIPower (Vertical Intelligent Power) devices are the

most promising.

Figure 1. VIPower M1 technology overview

AN517/0994

THE VB027: ELECTRONIC IGNITION IN

Smart power technologies attempt to close the gap

between discrete power devices and integrated

circuits. They have been developed with two goals

in mind: to achieve the same current capability and

breakdown voltage as a discrete power device, and

to integrate smart functions with only a small increase

in the cost of the device. These technologies are

inevitably the result of a compromise between

optimum power handling and signal processing

versatility. VIPower M1 technology has allowed the

development of a family of devices for automotive

ignition, for example the VB027, that allows a simple

logic-level driving circuit together with increased

ruggedness. Moreover, the latest generation permits

TO-220 packaging rather than TO-218 and, at the

same time, offers more intelligence on a single chip.

TECHNOLOGY OVERVIEW

The VIPower M1 structure shown in Figure 1

combines a vertical current flow NPN power

transistor and a low-voltage junction insulated IC on

the same silicon substrate. The signal processing

section is constructed inside a diffused p-type buried

layer that takes the place of the reverse-biased p-

substrate of conventional ICs, and must be connected

VIP

OWER

APPLICATION NOTE

TECHNOLOGY

by M. Melito

1/7

Related parts for VB027SP-E

VB027SP-E Summary of contents

Page 1

ABSTRACT This paper describes a solid state integrated ignition driver circuit designed to drive a high energy coil in a microprocessor based EMS (Engine Management System) under the direct control of a micro-controller. The paper begins with a review of ...

Page 2

APPLICATION NOTE to the most negative supply. The selection type substrate as the starting point allows complete compatibility between vertical NPN and IC fabrication steps standard power NPN, the thickness and resistivity of the first ...

Page 3

Its main features are: - minimum external components required - coil current limit internally set - built-in collector-emitter voltage clamping - TTL/CMOS compatible input - output diagnostic to microprocessor for angle control and overtemperature protection - die-size compatible with TO-220 ...

Page 4

APPLICATION NOTE A. Current Limitation and Quasi Proportional Base Driving Due to the low resistance of the high energy ignition coil, a current limitation system has to keep the output current within the boundaries of the Safe Operating Areas (Reverse ...

Page 5

Figure 6. V versus temperature clamp 400 350 300 250 200 150 100 Diagnostic Output and Over-temperature Protection The diagnostic signal indicates the primary coil current level to the micro-controller. The diagnostic output goes high when the ...

Page 6

APPLICATION NOTE D. Dynamic Bias of the P-type buried layer At turn-on, when the current in the primary coil is close to zero evident that the effect of the oscillation of the secondary current is due, mainly, to ...

Page 7

... This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U ...

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