SCALE™-2+ 2SC0435T
SCALE™-2+ 2SC0435T
Preliminary Description & Application Manual
Dual-Channel High-power IGBT Driver
Abstract
The new SCALE™-2+ dual-driver core 2SC0435T combines unrivalled compactness with broad applicability.
The driver was designed for universal applications requiring high reliability. The 2SC0435T drives all usual
high-power IGBT modules up to 1700V. The embedded paralleling capability allows easy inverter design
covering higher power ratings. Multi-level topologies are also supported.
The 2SC0435T is the most compact driver core in its power range available for industrial applications, with a
footprint of only 57.2mm x 51.6mm and an insertion height of max. 20.5mm. It allows even the most
restricted insertion spaces to be efficiently used.
Fig. 1 2SC0435T driver core
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SCALE™-2+ 2SC0435T
Preliminary Description & Application Manual
Contents
Abstract .......................................................................................................................................... 1
Contents ......................................................................................................................................... 2
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 ....................................................................................................................... 9
MOD (mode selection) ......................................................................................................... 9
INA, INB (channel drive inputs, e.g. PWM)........................................................................... 10
SO1, SO2 (status outputs) .................................................................................................. 10
TB (input for adjusting the blocking time T
b
) ........................................................................ 10
Recommended Interface Circuitry for the Secondary Side Connectors ...................................... 11
Description of Secondary Side Interfaces .................................................................................... 11
General ............................................................................................................................. 11
DC/DC output (VISOx), emitter (VEx) and COMx terminals .................................................... 12
Reference terminal (REFx) .................................................................................................. 12
Collector sense (VCEx) ....................................................................................................... 12
Active clamping (ACLx) ...................................................................................................... 12
Gate turn-on (GHx) and turn-off (GLx) terminals .................................................................. 13
How Do 2SC0435T SCALE-2+ Drivers Work in Detail? ................................................................ 14
Power supply and electrical isolation ................................................................................... 14
Power-supply monitoring .................................................................................................... 14
V
CE
monitoring / short-circuit protection ............................................................................... 15
Desaturation protection with sense diodes ........................................................................... 16
Parallel connection of 2SC0435T ......................................................................................... 16
3-level or multilevel topologies ............................................................................................ 16
Additional application support for 2SC0435T ........................................................................ 16
Electrical Ratings for UL recognized types .................................................................................. 16
Bibliography ................................................................................................................................. 17
The Information Source: SCALE-2 and SCALE-2+ Driver Data Sheets ........................................ 17
Quite Special: Customized SCALE-2 and SCALE-2+ Drivers ........................................................ 17
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SCALE™-2+ 2SC0435T
Preliminary Description & Application Manual
Technical Support ........................................................................................................................ 17
Quality .......................................................................................................................................... 17
Legal Disclaimer ........................................................................................................................... 18
Ordering Information ................................................................................................................... 19
Information about Other Products .............................................................................................. 19
Power Integrations Sales Offices ................................................................................................. 20
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SCALE™-2+ 2SC0435T
Preliminary Description & Application Manual
Driver Overview
The 2SC0435T is a driver core equipped with Power Integrations' latest SCALE-2+ chipset /1/. The SCALE-2+
chipset is a set of application-specific integrated circuits (ASICs) that cover the main range of functions
needed to design intelligent gate drivers. The SCALE-2+ driver chipset is a further development of the proven
SCALE technology /2/.
The 2SC0435T targets medium-power, dual-channel IGBT and MOSFET applications. The driver supports
switching up to 100kHz at best-in-class efficiency. The 2SC0435T comprises a complete dual-channel IGBT
driver core, fully equipped with an isolated DC/DC converter, short-circuit protection, Advanced Active
Clamping (AAC) and supply-voltage monitoring.
9
Fig. 2 Block diagram of the driver core 2SC0435T
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