Beijing LMY Electronics Co.,LTD www.PwrDriver.com IGBT-Driving Hybrid IC(TX-K841/K841L) Application Manual IGBTIGBT-Driving Hybrid IC (TX(TX-K841/K841L) Application Manual Beijing LMY Electronics Co.,LTD www.PwrDriver.com IGBT-Driving Hybrid IC(TX-K841/K841L) Application Manual Block Diagram Features • K841 is a hybrid IC capable of driving • Improved EXB841. Replace directly. Less delay time, higher work frequency. • Use only one single power supply. A negative power supply generated by driver itself which reduce the up to 600A for 600V IGBT and 300A for a 1200V IGBT external devices. • K841 and K841L have same build-in overcurrent protection circuit. Besides, K841L can block input PWM signal when IGBT is short-circuit, ensure that the soft shutdown can be effectively carried out. Application • To drive IGBT for Inverter, Servo systems, Uninterrupted power supply (UPS), Welding applications. Dimensions ( mm ) ℃ Electrical Characteristics(Ta=25 , Vp=20V, Fop=50KHz, CL=100nF, unless otherwise stated) Parameter Supply Voltage Symbol Vp Test Conditions Min. Typ. Max. 19 20 21 Unit V Beijing LMY Electronics Co.,LTD www.PwrDriver.com IGBT-Driving Hybrid IC(TX-K841/K841L) Application Manual Standby Current Iio CL=0 12 Supply Current Iil CL=100n 100 Input Signal Current Peak Value Ipwm Ω 8 10 Voh Rg=2 Vol CL=100nF Iohp Fop=20KHz 6 Iolp Ton=2 -6 Output Voltage Output Current Output Charge Qout Isolation Voltage VISO Operation Frequency Fop mA 13 14.5 V -4.5 μS A 2000 2800 50Hz/1 min 2500 0 60 0 100 δ Minimum Pulse Width Tonmin CL=100nF Rise Delay Trd Fall Delay Tfd Rise Time Tr Fall Time Tf Protective Threshold Vn 8.5 Blind Time Tblind 2.5 Soft Shutdown Time Tsoft 10 Output Fault Signal Current Iflt 10 Fault Signal Delay Tflt 50 Operation Temperature Top -30 90 Storage Temperature Tst -50 120 Application Circuit: Rg=2 nC Vrms Duty Cycle Rg=2 mA 0.8 Ω,Ipwm=10mA 0.2 0.5 0.3 0.6 Ω,CL=100nF 0.5 0.7 0.5 0.7 KHz ％ μS μS V μS μS 20 mA nS ℃ ℃ Beijing LMY Electronics Co.,LTD www.PwrDriver.com Notes: 1. Filter capacitor Cc, Ce and Cp are 22-47 IGBT-Driving Hybrid IC(TX-K841/K841L) Application Manual μF of electrolytic capacitor, each one are paralleled with a 0.22μF or more CBB capacitors. All capacitor >=25V. ＝ －15Ω；Rge>=4K7/0.25W。 2. Rg 2.2 3. EXB841 can be replaced with K841/K841L directly in existing circuit. Optocoupler current input signal should be about 10 mA. ：Beware output short circuit between pin 3 and pin 1. Reminded Pins Descriptions: ：Ground reference of driver circuit, connected to the emitter of IGBT. 2：Positive port of power supply Vp. 3：Output port of driver, connected to the gate of IGBT. 4：Not used. 5：Output port of fault signal. 6：IGBT current detect port, connected to the collector of IGBT. 7、8：Not used. 9：Negative port of power supply Vp. 10、11、12、13：Not used. 14、15：Input signal. 1