2ED300C17-S

Datasheet, V3.1 , March 2009 EiceDRIVER 2 E D 3 0 0 C 1 7 -S TM 2 E D 3 0 0 C 1 7 -S T Dual IGBT Driver Board For Infineon Medium and High Power IGBT Modules Power Management & Drives Edition2009-03-10 Published by Infineon Technologies AG 59568 Warstein, Germany © Infineon Technologies AG 2009. All Rights Reserved. LEGAL DISCLAIMER THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMENTATION OF THE INFINEON TE CHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONENT. THE RECIPIENT OF THIS APPLICATION NOTE MUST VERIFY ANY FUNCTION DESCRIBED HEREIN IN THE REAL APPLICATION. INFINEON TECHNOLOGIES HEREBY DISCLAIMS ANY AND ALL WARRANTIES AND LIABILITIES OF ANY KIND (INCLUDING WITHOUT LIMITATION WARRANTIES OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF ANY THIRD PARTY) WITH RESPECT TO ANY AND ALL INFORMATION GIVEN IN THIS APPLICATION NOTE. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Safety notice! The driver may only be used for the purposes described by the manufacturer. Inadmissible alterations and use of spare parts or accessories not recommend by Infineon may cause fire, electric shock and injuries. This document has to be available to all users, developers and qualified personnel who are to work with the driver. If measurements and tests on the device have to be carried out during operation, then the regulations of the work on live parts are to be observed, suitable test equipment is to be used. Prior to installation and commissioning please read this document thoroughly. • Commissioning is prohibited if there is visible damage by inappropriate handling or transportation. • Ensure ESD protection during handling. • Connect or disconnect only with power turned off. • Always keep sufficient safety distance during commissioning without closed protective housing. • Contact under live condition is strictly prohibited. • Work after turn-off is impermissible until the absence of supply voltage has been verified. • During work after turn-off it has to be observed that components heat up during operation. Contact with these can cause burns. • The drivers are mounted electrically and mechanically on a PCB by soldering. The mechanical strength has to be verified by the user and, if necessary, assured with appropriate tests. • The drivers are designed for use with Infineon IGBT Modules type IHM, EconoPACK+, PrimePACK TM, 62mm. In case of ulterior use, safe operation cannot be ensured. Data sheet 3 V3.1, 2009-03-10 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST General Information 2ED300C17-S/ -ST: This datasheet describes the dual channel IGBT driver 2ED300C17-S for industrial applications and the 2ED300C17-ST for traction applications. The electrical function and the mechanical dimensions of both versions are similar. The 2ED300C17-ST will be only be referred to where necessary. TM The 2ED300C17-S is one of the EiceDRIVER driver family. (e upec IGBT c ontrolled e fficiency DRIVER). The 2ED300C17-S IGBT driver is designed for use with Infineon IGBT modules of the 1200V and 1700V series. Functions of the 2ED300C17-S such as “soft shut down” or VCEsat reference curves have to be adapted to the individual modules. This is described in the following chapters. The 2ED300C17-S is designed for applications with high safety and reliability requirements and aims for power ratings of 75kW to 1MW. To offer high interference suppression, +15V is generally used for control. The entire logic processing is also done with +15V. The integrated transformer is separated into three sections: Two pulse transformers and a dual channel DC-DC switch mode power supply. These are designed such that they offer lowest coupling capacitances and high isolation stability. The 2ED300C17-S is additionally equipped with a feedback ”Sense” input. This input can optionally be connected with the active clamping or di/dt and dv/dt control. The clearance and creepage distances comply with VDE0110 and VDE0160 / EN50178 and are designed for pollution degree 3. Materials of the transformer meet requirements of UL94V2. Degree of protection is IP00. To protect from undefined switching of IGBTs in case of a gate-emitter short circuit of IGBT, the supply voltage VA;B+; VA;B- is internally fused. In case of a gate-emitter short the secondary circuit is interrupted and thus the primary voltage maintained. Exclusion clause: The datasheet is part of the Infineon IGBT driver 2ED300C17-S. To ensure safe and reliable operation it is necessary to read and understand this datasheet. The Infineon IGBT driver 2ED300C17-S is only intended for control of Infineon IGBT modules. Infineon cannot warrant against damage and/or malfunction if IGBT modules used not produced by Infineon. In this context, Infineon retains the right to change technical data and product specifications without prior notice to the course of improvement. The 2E300C17-S has been designed for an ambient temperature range starting at -25°C whereas the 2ED300C17-ST temperature range starts at -40°C. Data sheet 4 V3.1, 2009-03-10 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST AP99007 Revision History: Previous Version: Page all 2008-04 V3.0 Subjects (major changes since last revision) General review V3.1 Data sheet 5 V3.1, 2009-03-10 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Table of Contents 1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 2 2.1 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 4 4.1 4.2 Page Datasheet.............................................................................................................................7 Features ...............................................................................................................................7 Key Data...............................................................................................................................7 Block Diagram .......................................................................................................................8 Inputs and Outputs 2ED300C17-S / -ST..................................................................................8 Pin Configuration of the 2ED300C17-S /- ST ...........................................................................9 Absolute Maximum Ratings .................................................................................................. 10 Recommended Operating Parameters .................................................................................. 11 Electrical Characteristics ...................................................................................................... 12 Insulation Characteristics ..................................................................................................... 12 Mechanical Dimensions ....................................................................................................... 13 Processing .......................................................................................................................... 14 The transformer................................................................................................................. 14 Reinforced isolation Protection Class II according to EN50178 ............................................... 14 Application of the 2ED300C17-S / -ST ................................................................................ 15 Power supply....................................................................................................................... 15 Mode selection .................................................................................................................... 16 Interlock delay times ............................................................................................................ 17 Logic level ........................................................................................................................... 18 Signal level.......................................................................................................................... 19 IGBT connection .................................................................................................................. 20 IGBT short circuit and over-current shut-down with SSD “Soft Shut Down“ .............................. 22 SSD “Soft Shut Down“ ......................................................................................................... 25 External fault input ............................................................................................................... 27 “Sense“ input (SSD “Soft Shut Down“, optional DVRC or active clamping) ............................... 28 Additional output voltage / buffer capacitors ........................................................................... 29 Application example 2ED300C17-S ...................................................................................... 30 General .............................................................................................................................. 31 Designations and symbols.................................................................................................... 31 Type designation ................................................................................................................. 32 Datasheet 6 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Datasheet 1 1.2 Datasheet Features • Dual channel IGBT driver • For 600V, 1200V and 1700V Infineon IGBT modules • VCEsat monitoring • Soft Shut Down for fault conditions • Reinforced isolation according to EN50178 • Integrated DC-DC SMPS • High peak output current • ±15 V secondary drive voltage • Short propagation delay time • Optional “ Sense” -function • High RFI immunity 1.3 Key Data Visol pulse transformer and DC/DC IG per channel PDC/DC per driver channel tpd(on); tpd(off) tmd turn on and turn off Vin drive level for channel A and B Operating voltage VDC to ground dv/dt (*during test) Top 2ED300C17-S 5000 ± 30 4 15 >6 >14 mm mm mm Datasheet 12 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Datasheet 1.11 Note! Mechanical Dimensions The soldering pins of the design –ST are not coated. 2.95mm RM2.54mm 2.95mm 45 RM2.54mm 2,95mm 24 8.88mm 28mm 72 mm 27 mm 1 23 RM2.54mm 60.5 mm 2.31mm +/- 0,05 2.31mm (2.31mm) Max.25mm 20mm d=1mm PCB d=1mm Datasheet 13 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST The transformer 1.12 Processing The device has been designed to be soldered onto a carrier board as a through-hole component either by dual wave soldering process or by selective soldering . For more information see IFX Additional Information, DS1, March 2008 The “ -ST” version varies from the “-S” version throug h the use of a coating and use different OP-Amp. The coating used is type 1306N made by the company Peters. The soldering pins are not coated. When further coating processes are carried out, e.g. on the customer assembly, the compatibility of the coated type has to be established first. 2 2.1 The transformer Reinforced isolation Protection Class II according to EN50178 The reinforced isolation between primary and secondary side of the two transformers and the switch mode power supply is the basis for the 2ED300C17-S. Highly insulated coil wires, core insulated ferrites and a special sealing compound (UL94 V-0) are used for this purpose. The design makes sure that all windings are physically separated from each other. There are no overlapping primary and secondary windings. The winding connections are terminated directly to the pins which are cast into the housing. All that is contained in a plastic housing certified to UL 94. 16 9 1 8 Figure 2.1 Complete transformers with cores in position Datasheet 14 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Application of the 2ED300C17-S / -ST The transformer is designed for use in industrial and traction applications. The test voltage applied between all inputs and all outputs is 5kV AC for 1 second. The test voltage applied between the secondaries is 2.25kV AC for 1 second. (EN50178 Table18) (Individual test). The insulation test is completed by the surge voltage test stipulated by EN50178. Surge voltage test according to (EN50178 table 17) is 1.2/50µs with 9.6kV. The partial discharge extinction voltage stipulated by the standard (EN50178 table19) is above 1920V peak value (series test). 3 3.1 Application of the 2ED300C17-S / -ST Power supply The 2ED300C17-S has an integrated DC-DC switch mode inverter, which generates the required secondary voltages. The generated voltages are for the top and bottom channel with +15V primaries each ±16V secondaries. Hence the 2ED300C17-S only requires one external power supply of +15V. The 2ED300C17-S is operated on a stabilized +15V (±1V) supply. It is distinguished between VDD and VDC. All inputs are switched with +15V, where V DC should be additionally stabilized by a capacitor CDC (see figure 3.1). This stabilizing capacitor CDC should be 220µF. All GND pins have to be connected. To prevent a ground loop there is no internal connection of the DC-DC SMPS ground and the primary electronics. 10R 1µF +15V C DC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 VDD +15V VDD +15V VDD +15V Fault A Reset CA IN B CB Mode Fault B IN A GND GND VDC +15V VDC +15V VDC +15V VDC +15V VDC +15V GND GND GND GND GND Note! If the driver is turned on with +15V, a low voltage fault may be tripped depending on the voltage slew rate. This will be reset after 60ms if both signal levels IN A and IN B remain Low during this time. Note! No potential difference greater than 20V may occur between V DD and V DC. Figure 3.1 Pin configuration of +15V voltage supply Datasheet 15 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Application of the 2ED300C17-S / -ST Note! The 2ED300C17-S features secondary UVLO monitoring. If one of the secondary supply voltage drops below typical +12V or I-12V I, a fault condition will occur. This turns off the driver and is transferred to the primary as well. Warning: There is no monitoring of the primary supply voltage referring to undervoltage. The supply voltage applied has to be monitored. 3.2 Mode selection The 2ED300C17-S features two operating functions to drive Infineon Technologies IGBT modules. These are the direct mode and the half-bridge mode. • The direct mode: In this mode there is no link between the two channels of the 2ED300C17-S. Both channels IN A and IN B are working independently from each other and may both be turned on at once. The inputs IN A and IN B are switched with +15V PWM signals. The direct mode is activated by taking pin 9 ”Mode selection” to GND (e.g.: pin 12/13). The inputs CA pin 6 and CB pin 8 are not connected. Note! In the direct mode the inputs CA and CB must not be connected to +15V or GND. For EMC reasons it is recommended to connect the inputs CA and CB with 470pF to GND. • The half-bridge mode: This mode generates an interlock time between the two channels of the 2ED300C17-S. I.e. there is always only one channel active. The interlock time between the switching events may be selected. This is done with the inputs CA pin 6 and CB pin 8. The half-bridge mode is activated by taking pin 9 ”Mode selection” to V DD (pin 1/2/3). The inputs IN A and IN B are switched with PWM inputs. Explanation: There is always only one channel turned on. If there is a high signal on one channel, this is turned on after the interlock time has ended. If during this time there is a high signal for the second channel, it will be ignored until the first turned on channel has turned off. Datasheet 16 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Application of the 2ED300C17-S / -ST PWM IN A PWM IN B Gate A +15V +15V 0V +15V 0V -15V Gate B +15V Figure 3.2 Switching diagram with interlock delay times 3.3 Interlock delay times In half-bridge mode the 2ED300C17-S generates a minimal internal interlock delay time between the two channels. This minimal interlock time t TD is pre-set to 1 .6 µs. By adding a capacitance to the two inputs CA and CB this interlock time is extended and adapted to the requirements of the application. The capacitance is externally added between CA and CB to GND (see page 7 – 1.6 Pin configuration). The capacitance for the required interlock time is derived from the following table: Delay time 1.6µs 2µs 2.4µs 3.4µs 4.3µs 5.4µs CA / CA n.c. 47pF 100pF 220pF 330pF 470pF 9.6µs 1nF Table 3.3 Interlock delay time settings for half bridge mode NOTE ! It is not permitted to connect the inputs CA and CB direct ly to a voltage potential. The tolerance of the interlock delay times depends mainly on the tolerance of the external capacitors. This nee ds to be considered when choosing the capacitors! Datasheet 17 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Application of the 2ED300C17-S / -ST Pin 6 CA Pin 8 CB Primary Side Pulse Transformer Secondary Side A CA CB DC/DC Pin 12 GND Pin 13 GND Secondary Side B Figure 3.3 Connection of the external capacitors to increase the interlock times 3.4 Logic level The term “logic level” concerns the fault output and the reset input as well as the input for operating mode selection described in chapter 3.2. • Logic inputs The two inputs (reset and mode) may be stressed with a maximum voltage of 20V. The switching threshold is at 8V, so the existing +15V offers itself as switching signal. 1) Mode: see chapter 3.2 2) Reset: The driver can be reset via the reset input after a fault has been indicated. The reset input is active high, i.e. a high signal activates the reset . The threshold level is 8V. If reset is used by the PWM inputs IN A and IN B, the reset input is inactive and pin 5 (Reset) has to be permanently connected to GND. If both PWM signals are “low” for more than 60ms , the driver is reset. • Logic outputs The driver core recognizes short circuit current faults of the IGBTs and faults of the supply voltage. Additionally the 2ED300C17-S features an external fault input. If a fault is detected through the V CE sat monitoring, an under-voltage or the external fault input, the driver core is immediately turned off. With these faults on the secondary side, the IGBT is shut down via a soft shut down. Each fault is stored until a reset signal on Pin 5 is present. The reset is also activated when the input signal on both channels is low for more than 39ms. Indication of a fault occurs in any case via a common fault line on the logic output FAULT. The fault is brought out twice via Pin4 and Pin10. These outputs are configured as open collector. The outputs can operate at up to 20V and can switch a maximum of 20mA. They are designed to provide signals with 15V CMOS level. Datasheet 18 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Application of the 2ED300C17-S / -ST If a fault is recognized, the internal transistor switches and pulls the fault output to GND. +15V 1 2 3 4 5 6 7 8 9 10 11 VDD +15V VDD +15V VDD +15V Fault Reset CA IN B CB Mode Fault IN A +15V Fault GND Figure 3.4 Fault output Note! The fault outputs are internally connected. There is only one fault output for both channels. 3.5 Signal level In both the direct mode and the half-bridge mode the input IN A of the 2ED300C17-S controls channel A and input IN B controls channel B. The inputs feature a Schmitt-Trigger and an active high logic. A high level turns the IGBT on and a low level turns it off. The two signal inputs may be operated with a maximum of 20V per channel. Brief negative peaks of equal voltage will not lead to damage of the inputs. The switching threshold is at +8V to GND. The input impedance is 3.3kOhm for each channel. For long cables it may be necessary to connect an external burst suppression network. Note: The 2ED300C17-S features a minimal pulse suppression. Pulses with less than 400ns will be suppressed by the driver. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VDD +15V VDD +15V VDD +15V Fault Reset CA IN B CB Mode Fault IN A GND GND VDC +15V PWM B PWM A 100µH 100µH Figure 3.5 Input signals Datasheet 19 V3.1 , 2009-03-11 EiceDRIVER TM EiceDRIVER(TM) 2ED300C17-S/ -ST Application of the 2ED300C17-S / -ST 3.6 IGBT connection The 2ED300C17-S features two independent channels to drive the IGBTs. It is possible to drive individual IGBTs, single IGBT-modules or IGBT-modules connected in parallel. The maximum size of the IGBT-modules depends mainly on the IGBT input capacitance and on the switching frequency. When considering the gate currents, note that these are not determined by the external gate resistors alone. Many Infineon Technologies IGBT modules have internal gate resistors. Additionally, the 2ED300C17-S features a low output impedance. Never the less a gate current calculated via the external gate resistor will never be realized in practice. An approximation for the drive power and peak current can be achieved with: § Driver power PG = f S • ∆VGE • Qg P = PDD + PG I G max = ∆VGE RG (min) § Max. driver current fS = switching frequency Qg = IGBT gate charge (datasheet) PDD = driver dissipation ∆VGE = 30V at ±15V RG(min)=RG extern+RG intern • Gate connection The gate of the IGBT is connected to Gate A or Gate B via the external gate resistor. The associated auxiliary emitter is connected directly to the COM outputs. The gate output voltage is ±15V with respect to COM A and COM B (considering chapter 3.1). By utilizing the external gate resistors it is possible to realize turn-on and turn-off with different gate resistances. Additionally to the gate resistor a gate-emitter resistor and gate clamping should be used. These would be placed between the gate and the aux. emitter. As RGE a resistor