SCALE Driver 2SD315AI Data Sheet 2SD315AI Dual SCALE Driver Core for IGBTs and Power MOSFETs Description The SCALE drivers from CONCEPT are based on a chip set that was developed specifically for the reliable driving and safe operation of IGBTs and power MOSFETs. The name “SCALE” is an acronym for the most outstanding properties of the SCALE series of drivers: SCALE = Scaleable, Compact, All purpose, Low cost and Easy to use. The SCALE driver is a winning project of the competition organized by “Technology Center Switzerland 1998”. And ABB Switzerland AG honored the development of the SCALE driver by distinguishing it as the “best power electronics project in 1998”. Product Highlights Applications [ Suitable for 1200V and 1700V IGBTs [ Short circuit and overcurrent protection [ Extremely reliable, long service life [ High gate current of ±15A [ Electrical isolation of 4000V [ Electrically isolated status acknowledgement [ Monitoring of power supply and self-monitoring [ Switching frequency DC to >100kHz [ Duty cycle: 0... 100% [ High dv/dt immunity, guaranteed >100,000V/µs [ Complete with DC/DC converter AC IGBT-Driver.com [ Inverters [ Motor drive technology [ Traction [ Railroad power supplies [ Converters [ Power engineering [ Switched-mode power supplies [ Radiology and laser technology [ DC/DC converter [ Research [ RF generators and converters Page 1 SCALE Driver 2SD315AI Data Sheet Block Diagram Rth IGD VDD LDI Rg Viso1 Rth GND IGD Rg Viso2 VDC Viso1 PWM oscillator Viso2 GND Interface on Electrical Electronic Level Isolation Driver on Power Level PowerSemiconductor (external) SCALE Driver Module Fig. 1 Block diagram of the 2SD315AI Page 2 INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet Pin Designation Pin Des. Function Pin Des. Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 +15V for electronic input side +15V for electronic input side Status output channel 1 Logic level/Reset RC network dead-time channel 1 Input B RC network dead-time channel 2 Mode input Status output channel 2 Input A GND for electronic input side GND for electronic input side +15V for DC/DC converter +15V for DC/DC converter +15V for DC/DC converter +15V for DC/DC converter +15V for DC/DC converter Ground DC/DC converter Ground DC/DC converter Ground DC/DC converter Ground DC/DC converter Ground DC/DC converter 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 Gate channel 1 Gate channel 1 Virtual common channel 1 Virtual common channel 1 Blocking capacitor channel 1 Emitter channel 1 Emitter channel 1 Reference resistor channel 1 Collector sense channel 1 Local status channel 1 Free Free Gate channel 2 Gate channel 2 Virtual common channel 2 Virtual common channel 2 Blocking capacitor channel 2 Emitter channel 2 Emitter channel 2 Reference resistor channel 2 Collector sense channel 2 Local status channel 2 VDD VDD SO1 VL RC1 InB RC2 MOD SO2 InA GND GND VDC VDC VDC VDC VDC GND(dc) GND(dc) GND(dc) GND(dc) GND(dc) G1 G1 COM1 COM1 Viso1 E1 E1 Rth1 C1 LS1 G2 G2 COM2 COM2 Viso2 E2 E2 Rth2 C2 LS2 Legend: Pins with the designation “Free” are not physically present. PCB Layout / Mechanical Dimensions Details of the circuit board layout Grid of the aspect drawing on page 4 below: 1.27mm (50mil) Recommended diameter of solder pad: Ø 1.6mm Recommended diameter of drill holes: Ø 1.0mm IGBT-Driver.com Page 3 SCALE Driver 2SD315AI Data Sheet Mechanical Dimensions Fig 2 Front view (top) / Layout overview component side (bottom) 2SD315AI Page 4 INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet Fig. 3 Side view (top) / Mechanical fixing (bottom) 2SD315AI Height X: typ. 22mm IGBT-Driver.com Page 5 SCALE Driver 2SD315AI Data Sheet Mechanical fixing The 2SD315AI driver has two holes each 3.2mm in diameter. They allow additional fixing of the driver for applications requiring very high resistance to shaking/vibration (railways, traction systems, electrically-driven vehicles, etc.). See Fig. 3 (bottom). Absolute Maximum Ratings Parameter Supply voltage VDC Supply voltage VDD Logic input voltage Gate peak current Iout Output power DC/DC converter Operating voltage Test voltage (50Hz/1min) Operating temperature Storage temperature Test conditions to GND Gx to Ex total for both channels continuous (see Note 8) inputs to outputs (see Note 11) (see Note 10) min max unit 0 16 0 16 0 VDD -18 +18 6 1200 4000 -40 +85 -40 +90 Vdc Vdc Vdc A W Vdc VAC(eff) °C °C All data refer to +25°C and VDD = VDC = 15V unless otherwise specified Electrical Characteristics Power supply Test conditions Nominal supply voltage VDC Supply current IDC Max. supply current IDC Output power DC/DC converter Efficiency η Nominal supply voltage VDD Supply current IDD Supply current IDD to GND (see Note 1) without load Page 6 min typ max 15 30 (see Note 2) (see Note 3) internal DC/DC converter to GND without load at 25kHz switching frequency 85 15 12 15 470 6 unit Vdc mA mA W % Vdc mA mA INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet Electrical Characteristics (Continuation) Power supply monitoring Test conditions Turn-on threshold Vth Hysteresis on/off (see Note 4) (see Note 4) Logic inputs Test conditions Input voltage all inputs (see Note 5) Timing characteristics Test conditions Delay time input to output Blocking time turn-on tpd(on) turn-off tpd(off) after failure (see Note 12) Outputs Test conditions Output Output Output Output Output Output current IG rise time tr(out) fall time tf(out) current SOx voltage rating SOx current LSx Gx to Ex (see Note 6) Gx to Ex (see Note 7) Gx to Ex (see Note 7) SOx to GND Vce-Monitoring Test conditions Inputs Cx to Ex Electrical isolation Test conditions Operating voltage Test voltage Partial discharge extinction volt. Creep path input-output Creep path output-output Maximum 'V/'t at 'V =1000V continuous (see Note 8) (50Hz/1min) (see Note 11) IEC270 (see Note 9) min typ max 11.5 0.7 unit Vdc Vdc min typ max unit 0 VDD Vdc min typ max unit 300 350 1 min ns ns s typ max unit -15 +15 100/160 80/130 1.5 A ns ns mA V mA VDD 5 min typ max unit 0 VDD Vdc min typ max unit 100 >1700 20 20 1200 4000 Vdc VAC(eff) VAC(pk) mm mm kV/Ps All data refer to +25°C and VDD = VDC = 15V unless otherwise specified IGBT-Driver.com Page 7 SCALE Driver 2SD315AI Data Sheet Operating Conditions Operating conditions Test conditions Operating temperature Storage temperature (see Note 10) min max unit -40 +85 -40 +90 °C °C Footnotes to the key data 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) The drivers have a zener diode on each channel for over-voltage protection. When the feed voltage exceeds 16V, this protection can be subject to thermal overload. If the specified power consumption is exceeded, this indicates an overload of the DC/DC converter. It should be noted that these DC/DC converters are not protected against overload. This should be considered as a recommended value. Please consult the section: “Output power and self-heating”. Under-voltage monitoring for protecting the power semiconductors. The voltage refers to the local supply voltage of each individual drive channel. However, this corresponds approximately to the voltage at VDC with respect to GND. The input levels must never exceed the limits of the supply voltage (i.e. between GND and VDD), otherwise latch-up of the integrated circuits LDI 00I can occur. Particular care must be taken when driving via cables or longer leads. The gate current must be limited to its maximum value by a gate resistor. First value: At a load of 39nF in series with 5.6Ω/Second value: At a load of 250nF in series with 1.8Ω Maximum continuous or repeatedly-applied DC voltage between all inputs and all outputs. This specification guarantees that the drive information will be transferred reliably even at a high DC-link voltage and fastest switching operations. The application-specific self-heating of the drivers – specially at high load – must be taken into account. The test voltage of 4000 Vac(rms)/50Hz may be applied only once during one minute. It should be noted that with this (strictly speaking obsolete) test method, some (minor) damage occurs to the isolation layers due to the partial discharge. Consequently, this test is not performed at CONCEPT as a series test. In the case of repeated isolation tests (e.g. module test, equipment test, system test) the subsequent tests should be performed with a lower test voltage: the test voltage is reduced by 400V for each additional test. The more modern if more elaborate partial-discharge measurement is better suited than such test methods as it is almost entirely non-destructive. The typical blocking time after an error is 1 second. If required, versions with other blocking times may also be supplied. Page 8 INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet Application Hints IMPORTANT INFORMATION This data sheet contains only product-specific data. All data that apply to the whole type series of SCALE drivers is given in the document entitled: “Description and Application Manual for SCALE Drivers”. In particular, this manual contains a detailed description of the concept of the SCALE drivers, a description of the function of all terminal pins as well as other important application hints. Overview and application The SCALE driver 2SD315AI is a two channel driver for power MOSFETs and IGBTs. The 2SD315AI combines compact mechanical dimensions and a simple electrical interface with very high output currents, high drive power and a special high isolation. This driver can thus be used in almost all conceivable applications, especially for parallel circuits, high-power modules and modules with reverse voltages up to 1700V. When used as a half-bridge driver, the 2SD315AI can directly generate any dead times that may be required. Output power and self-heating The specified output power of the driver totals 6W (3W per channel). In the case of a drive power of 6W, the typical input power of the driver is about 7W; the losses due to the driver total about 1W. Because CONCEPT cannot predict how the drivers will be incorporated in the user’s application, no binding recommended value for self-heating and thus for the maximum useful output power at high ambient temperatures can be made. It is consequently recommended to check the self-heating of the system, especially when it is used at higher temperatures. For the calculation of the exact output power, reference should be made to Application Note AN-9701 “IGBT drivers correctly calculated” on www.igbt-driver.com/go/app-note. IGBT-Driver.com Page 9 SCALE Driver 2SD315AI Data Sheet Collector sense and dimensioning of Rth The 2SD315AI dual driver has a collector-sense circuit to protect the power semiconductors. It is shown in Fig. 4 Its basic operating mode can be obtained from the brochure entitled: “Description and Application Manual for Scale Drivers”. To correspond more effectively to the turn-on characteristic of the IGBTs, the SCALE drivers do not use a static reference voltage to compare the voltage at the collector. Instead, the reference is used as shown in Fig. 5. In order to ensure that the 2SD315AI can be applied as universally as possible, the components Ca (response time capacitor) and Rm (attenuation resistor) are not integrated in the driver as shown in Fig. 4, but must be connected externally. Whereas Ca can be matched to the specific application, a standard value of 180Ω is recommended for Rm. The ground terminal of Ca should be connected to the COMx pin. +VDD +VDD 1,4mA 150uA OVERCURRENT Rm 180R Dm (2 x 1N4007) Cx Ca COMx Rthx RGx MEASURING Gx Rthx Ex SCALE Driver 2SD315A Fig. 4 Collector-sense circuit principle Page 10 INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet Notes on Table 1 +Vdc The values for “Vth1” and “Vth2” are listed in Table 1 as a function of the reference resistance Rth. Vce Detail Vth The value in the “Vth1” column corresponds to the voltage threshold after the response time has elapsed. The value in the “Vth2” column corresponds to the voltage which is set up statically across the resistor Rth. This static value is typically reached after between 10 and 15 µs. 0V Response time Detail view Vth1 Vce Vth2 0V The value in the “VCE(off)” column corresponds to the collector-emitter voltage value at which the protection function is activated when the external circuit is used as shown in Fig. 4 with one or two Dm diodes of type 1N4007 connected in series. A value of 1n5 is used for the response time capacitor Ca. If this capacitor is rated higher or lower, the response time changes in proportion to the change in capacitance, whereas the thresholds Vth1 and Vth2 remain practically unchanged (they are specified by Rth). Fig. 5 Collector-sense voltage curve Value Rth Reaction time Vth1 Vth2 VCE(off) 22k 4.9Ps 4.8V 3.2V 2.35V (1 Diode) 27k 5.7Ps 5.6V 3.9V 3.05V (1 Diode) 33k 6.8Ps 6.5V 4.7V 3.25V (2 Diodes) 39k 7.6Ps 7.3V 5.6V 4.15V (2 Diodes) 47k 9Ps 8.4V 6.8V 5.35V (2 Diodes) Table 1 Reference resistor, reaction time and turn-off threshold with Ca = 1n5 IGBT-Driver.com Page 11 SCALE Driver 2SD315AI Data Sheet Double or multiple pins Due to the high output currents, several pins are present in duplicate or as multiples. It is recommended to connect these in parallel on the layout so that the voltage drop across the lead frames (contact pins) is minimized. Special terminal pins The 2SD315AI half-bridge driver is optimized for universal use and high driver performance and thus contains more terminal pins than the compact SCALE drivers. These pins will be described below: Visox and COMx pins: external support capacitor Note: The “x“ in Visox and COMx stands for the channel number. Like the compact SCALE drivers, the 2SD315AI also has blocking capacitors on the secondary side of the DC/DC converter for each drive channel. IGBTs with gate charges up to 3PC (corresponding typically to about a 1200V/300A module) and gate currents up to about 10A can be driven without external blocking capacitors. At higher gate charges or gate currents, external blocking capacitors are required between Visox and COMx. These capacitors should be rated at between 47 and 120PF (but no more than 220 PF) and a dielectric strength of 20V. It is important that the capacitors are suitable for switched-mode power supply applications (low inductance and high current handling capacity). They must be connected as close as possible to the driver’s terminal pins with minimum inductance. The anode of the capacitor is connected to Visox, its cathode to COMx. The COMx pin is always present in duplicate. VDC and GND pins: supply for DC/DC Converter It is recommended to connect a blocking capacitor of approximately 220µF to the driver input. This capacitor should also be of the switched-mode power supply type. Pin LSx: Local status Note: The “x“ in LSx stands for the channel number. The status of the IGD 001 for each channel is available at this output. It is an opencollector output to which approximately 5mA may be applied. A LED can be connected here, for example, as shown in Fig. 6. The LED lights up in normal operation Page 12 INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet (everything OK) and goes out when the driver detects an undervoltage or during the blocking time. isolated +16V Visox 3k3 SCALE driver Okay LED LSx Ds COMx Fig. 6 Status display with LED at pin LSx Attention: The Schottky diode Ds should not be omitted if the local status outputs are used. If the local status outputs are not used, LS1 should be connected to COM1 and LS2 to COM2 in order to increase the noise immunity of the driver. Configuration within the Power Section The drivers should be located as closely as possible to the power transistors. The connecting leads to the transistors should be as short as possible and as low inductance as possible, i.e. they can be up to 3cm to 10cm long depending on the gate current and switching speed. IGBT-Driver.com Page 13 SCALE Driver 2SD315AI Data Sheet If you need any help, simply call our technical support CONCEPT provides expert help with your questions and problems: www.IGBT-Driver.com/go/support Quite special: customized SCALE drivers If you need a power MOSFET or IGBT driver that is not included in the delivery range, don’t hesitate to contact CONCEPT or your CONCEPT sales partner. CONCEPT engineers have more than 20 years experience in the development and manufacture of intelligent drivers for power MOSFETs and IGBTs and have already implemented a large number of customized solutions. Important Notice The data contained in this product data sheet is intended exclusively for technically trained staff. Handling all high-voltage equipment involves risk to life. Strict compliance with the respective safety regulations is mandatory! Any handling of electronic devices is subject to the general specifications for protecting electrostatic-sensitive devices according to international standard IEC 747-1, Chapter IX or European standard EN 100015 (i.e. the workplace, tools, etc. must comply with these standards). Otherwise, this product may be damaged. Legal Disclaimer This data sheet specifies devices but cannot promise to deliver any specific characteristics. No warranty or guarantee is given – either expressly or implicitly – regarding delivery, performance or suitability. CT-Concept Technologie AG reserves the right to make modifications to its technical data and product specifications at any time without prior notice. The general terms and conditions of delivery of CT-Concept Technologie AG apply. Page 14 INTELLIGENT POWER ELECTRONICS SCALE Driver 2SD315AI Data Sheet Ordering Information Dual SCALE driver with ±15A gate current / 0/+15V or ±15V gate voltage 2SD315AI Information about Other Products For other drivers, product documentation, and application support Direct link: Please click: www.IGBT-Driver.com Manufacturer CT-Concept Technologie AG Intelligent Power Electronics Renferstrasse 15 CH-2504 Biel-Bienne Switzerland Tel. Fax +41 - 32 - 344 47 47 +41 - 32 - 344 47 40 E-mail Internet [email protected] www.IGBT-Driver.com © Copyright 1998…2009 by CT-Concept Technologie AG - Switzerland. We reserve the right to make any technical modifications without prior notice. IGBT-Driver.com All rights reserved. Version from 2009-09-15 Page 15