AN-1105 IRS2308 IR2308 - Datasheet Archive

 

IRS2308 and IR2308 Comparison By Jason Nguyen, Min Fang, David New Table of Contents Page Introduction

 

Application Note AN-1105 AN-1105 IRS2308 IRS2308 and IR2308 IR2308 Comparison By Jason Nguyen, Min Fang, David New Table of Contents Page Introduction .1 Block Diagram.2 Electrical Characteristic Differences.2 Summary.3 Introduction The IRS2308 IRS2308 is a new product that replaces the IR2308 IR2308 HVIC and is pin-to-pin compatible with its corresponding predecessor. In many cases, little or no change is necessary to use the new product. This application note describes the various differences between the IRS2308 IRS2308 and the IR2308 IR2308 HVICs. The IRS2308 IRS2308 is a high voltage, high speed power MOSFET and IGBT driver with independent high and low side referenced output channels. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard CMOS or LSTTL outputs, down to 3.3 V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver crossconduction. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high side configuration which operates up to 600 V. www.irf.com AN-1105 AN-1105 1 Block Diagram VB UV DETECT 2308 HO R HV LEVEL SHIFTER VSS/COM LEVEL SHIFT HIN DT R PULSE FILTER Q S VS PULSE GENERATOR VCC DEADTIME & SHOOT-THROUGH PREVENTION UV DETECT VSS/COM LEVEL SHIFT LIN DELAY LO COM VSS The IRS2308 IRS2308 and the IR2308 IR2308 share the same block diagram. The functionality of the two ICs is the same. Electrical Characteristic Differences All measurement conditions remain unchanged unless noted. mentioned in this document have not changed. Parameters not Absolute Maximum Ratings There are no changes in the Absolute Maximum Ratings. Recommended Operating Conditions There are no changes in the Recommended Operating Conditions. www.irf.com AN-1105 AN-1105 2 Dynamic Electrical Characteristics typ IR2308 IR2308 Parameter Definition Symbol max IRS2308 IRS2308 typ max tr Turn-on rise time (Vs = 0 V) 150 220 100 tf Turn-off fall time (Vs = 0 V) 50 80 35 Units 220 80 ns The IRS2308 IRS2308 has faster rise and fall times when compared to the IR2308 IR2308. Static Electrical Characteristics Parameter Symbol IR2308 IR2308 Definition IRS2308 IRS2308 min typ max min typ max VIH Logic "1" input voltage (VCC = 10 V to 20 V) 2.9 - - 2.5 - - VIL Logic "0" input voltage (VCC = 10 V to 20 V) - 0.8 - - 0.8 Io = 20 mA - 1.4 - 0.05 Io = 2 mA - 0.2 - 0.3 Io = 20 mA 0.6 - 0.02 Io = 2 mA Units 0.8 0.1 VOH High level output voltage, VBIAS - VO (IO = 20 mA) VOL Low level output voltage, VO (IO = 20 mA) IO+ Output high short circuit pulsed current (VO = 0 V, VIN=Logic "1", PW