Power integrations Scale-2 1SC0450E2B0 Istruzioni per l’uso

SCALE™-2 1SC0450E2B0

www.power.com/igbt-driver Page 1

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

Single-Channel Cost-Effective Driver Core for IGBTs up to 4500V and 6500V

Abstract

The 1SC0450E2B0 single-channel SCALE™-2 driver core combines unrivalled compactness with broad

applicability and cost-effectiveness. It is designed for industrial and traction applications requiring high

reliability. The 1SC0450E2B0 drives all usual high-voltage IGBT modules up to 4500V and 6500V. Up to four

parallel-connected IGBT modules can be driven to cover higher power ratings. Multi-level topologies

involving 3300V or 4500V IGBTs with higher isolation requirements can also be easily supported by the

1SC0450E2B0.

The 1SC0450E2B0 supports maximal design flexibility as no fiber-optic links are assembled on the driver

board. Gate drive input and output signals are provided over dedicated electrical interface connectors.

The 1SC0450E2B0 is the most compact driver core in its voltage and power range, featuring a footprint of

only 60mm x 90mm and a maximum insertion height of 27.5mm. It allows even the most restricted insertion

spaces to be efficiently used.

Fig. 1 1SC0450E2B0 driver core

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 2

Contents

Driver Overview ............................................................................................................................. 4

Mechanical Dimensions.................................................................................................................. 5

Pin Designation .............................................................................................................................. 7

Recommended Interface Circuitry for the Primary-Side Connector.............................................. 8

Description of Primary-Side Interface ........................................................................................... 8

General...............................................................................................................................8

VCC terminal ....................................................................................................................... 8

VDC terminal.......................................................................................................................8

GND ...................................................................................................................................9

SO (status output)...............................................................................................................9

Recommended Interface Circuitry for the Secondary Side Connectors ........................................ 9

Pins 6 to 16.........................................................................................................................9

Pins 17 to 32..................................................................................................................... 10

Description of Secondary-Side Interfaces ................................................................................... 10

General............................................................................................................................. 10

DC/DC output (VISO), emitter (VE) and COM terminals......................................................... 11

Reference terminal (REF) ................................................................................................... 11

Collector sense (VCE)......................................................................................................... 11

Input for adjusting the turn-off delay in fault condition (CSHD) ............................................. 14

Active Clamping (ACL)........................................................................................................ 15

Gate turn-on (GH) and turn-off (GL) terminals ..................................................................... 15

Gate Boosting Power Supply (VGB) ..................................................................................... 16

Gate Boosting Signal (GBS) ................................................................................................ 16

Gate Drive Input (IN)......................................................................................................... 16

Status Feedback /Fault input (OUT) .................................................................................... 16

How Do 1SC0450E2B0 SCALE-2 Drivers Work in Detail? ............................................................ 19

Power supply and electrical isolation ................................................................................... 19

Power-supply monitoring.................................................................................................... 19

Parallel connection of IGBT modules ................................................................................... 19

3-level or multilevel topologies............................................................................................ 19

Gate Boosting.................................................................................................................... 20

Bibliography ................................................................................................................................. 22

The Information Source: SCALE-2 Driver Data Sheets ................................................................ 23

Quite Special: Customized SCALE-2 Drivers ................................................................................ 23

Technical Support ........................................................................................................................ 23

Quality.......................................................................................................................................... 23

Legal Disclaimer ........................................................................................................................... 23

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 3

Ordering Information................................................................................................................... 24

Information about Other Products .............................................................................................. 24

Power Integrations Sales Offices.................................................................................................25

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 4

Driver Overview

The 1SC0450E2B0 is a driver core equipped with the latest SCALE-2 chipset from Power Integrations /1/.

The SCALE-2 chipset comprises a set of application-specific integrated circuits (ASICs) that cover the main

functions needed to design intelligent gate drivers. The SCALE-2 driver chipset is a further development of

the proven SCALE™-1 technology /2/.

The 1SC0450E2B0 targets medium- and high-power IGBT applications up to 6500V. The driver supports

switching frequencies up to 10kHz with best-in-class efficiency. The 1SC0450E2B0 comprises a complete

single-channel IGBT driver core, fully equipped with an isolated DC/DC converter, electrical interface for the

external use of fiber-optic transceivers, short-circuit protection, Advanced Active Clamping and supply-

voltage monitoring. Additional features such as gate boosting are also implemented and provide further

driving benefits.

Fig. 2 Block diagram of the 1SC0450E2B0 driver core

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 5

Mechanical Dimensions

Fig. 3 Interactive 3D drawing of the 1SC0450E2B0

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 6

Fig. 4 Mechanical drawing of the 1SC0450E2B0

The primary-side and secondary-side pin grid is 2.54mm (100mil) with a pin cross-section of

0.64mm x 0.64mm. Total outline dimensions of the board are 60mm x 90mm. The total height of the driver

is maximum 27.5mm measured from the bottom of the pin bodies to the top of the populated PCB.

Note that the mechanical fixing points are placed in the clearance and creepage paths. Insulated fixation

material (screws, distance bolts) must therefore be used in order not to reduce these. The fixing points

support M3 screw size.

Recommended diameter of solder pads: Ø 2mm (79mil)

Recommended diameter of drill holes: Ø 1mm (39mil)

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 7

Pin Designation

Pin No. and Name

Function

Primary Side

Status output primary side; normally pulled up to VCC over a 10kΩresistor, pulled

down to low in case of a fault

GND

Ground

VCC

Supply voltage; 15V supply for primary side

VDC

DC/DC converter supply

GND

Ground

Secondary Side

VGB

Gate-boosting power supply

VISO

DC/DC output

COM

Secondary-side ground

CSHD

Set turn-off delay after fault detection; capacitor to COM

Gate high; pulls gate high through turn-on resistor

GBS

Gate-boosting signal

IGBT emitter

Gate low; pulls gate low through turn-off resistor

ACL

Active clamping feedback; leave open if not used

REF

Set VCE detection threshold through resistor to VE

VCE

VCE sense; connect to IGBT collector through impedance network

COM

Secondary-side ground

VISO

DC/DC output

COM

Secondary-side ground

COM

Secondary-side ground

COM

Secondary-side ground

Gate driving input; Inverted non-isolated signal input

COM

Secondary-side ground

COM

Secondary-side ground

COM

Secondary-side ground

OUT

Status output and external fault input

COM

Secondary-side ground

COM

Secondary-side ground

COM

Secondary-side ground

OUT

Status output and external fault input

OUT

Status output and external fault input

COM

Secondary-side ground

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 8

Recommended Interface Circuitry for the Primary-Side Connector

Fig. 5 Recommended user interface of the 1SC0450E2B0 (primary side)

Description of Primary-Side Interface

General

The primary-side interface of the 1SC0450E2B0 driver is very simple and easy to use.

The driver primary side is equipped with a 5-pin interface connector with the following terminals:

2x power-supply terminals VCC and VDC

2x ground terminals GND

1x status output SO (indicating a fault during primary-side under-voltage)

All inputs and outputs are ESD-protected.

VCC terminal

The driver has one VCC terminal on the interface connector to supply the primary-side electronics with 15V.

VDC terminal

The driver has one VDC terminal on the interface connector to supply the DC/DC converter for the secondary

side.

VDC should be supplied with 15V. It is recommended to connect the VCC and VDC terminals to a common

15V power supply. In that case, the driver limits the inrush current at startup and no external current

limitation of the voltage source for VDC is needed.

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 9

GND

Both ground pins must be connected together with low parasitic inductance. A common ground plane is

strongly recommended. Furthermore it is recommended to shield all primary-side circuitry with the ground

plane. The connecting distance between the ground pins must be kept to a minimum.

SO (status output)

When no primary-side under-voltage condition is detected, an internal pull-up resistor of 10kΩ keeps the

output level at the voltage level of VCC. When a primary-side supply under-voltage is detected, the status

output SO goes to low (connected to GND). The SO output is automatically reset (returning to the voltage

level of VCC) when the under-voltage on the primary side disappears.

The maximum SO current in a fault condition must not exceed the value specified in the driver data sheet

/3/.

Recommended Interface Circuitry for the Secondary Side Connectors

Pins 6 to 16

Fig. 6 Recommended user interface of the 1SC0450E2B0 (secondary-side pins 6 to 16) without gate

boosting (refer to chapter “Gate Boosting” and Fig. 11 for gate-boosting circuitry)

SCALE™-2 1SC0450E2B0

Preliminary Description & Application Manual

www.power.com/igbt-driver Page 10

Pins 17 to 32

Fig. 7 Recommended command interface circuitry with Avago fiber-optic links HFBR-x522ETZ

Description of Secondary-Side Interfaces

General

The driver’s secondary side is equipped with an 11-pin and two 8-pin interface connectors.

The 11-pin interface connector features the following terminals:

1x DC/DC output terminal VISO

1x emitter terminal VE

1x secondary-side ground COM

1x collector sense terminal VCE

1x reference terminal REF for short-circuit protection

1x input terminal CSHD to set the turn-off delay after fault

1x active clamping terminal ACL

1x turn-on gate terminal GH

1x turn-off gate terminal GL

1x gate-boosting power supply VGB

1x gate-boosting signal GBS

The two 8-pin interface connectors combine the command interface and feature the following terminals:

1x DC/DC output terminal VISO

11x secondary-side ground COM

1x PWM input (inverted)

3x status feedback input/output (inverted)

All inputs and outputs are ESD-protected.

Indice

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