Application Note AN-1097 IRS2011 and IR2011 Comparison By Jason Nguyen, Min Fang, David New Table of Contents Page Introduction ..........................................................................................1 Block Diagram......................................................................................2 Electrical Characteristic Differences.....................................................3 Figures .................................................................................................3 Summary..............................................................................................9 Introduction The IRS2011 is a new HVIC product that replaces the IR2011 and is pin-to-pin compatible with its predecessor. This application note describes the various differences between the IRS2011 and the IR2011 HVICs. The IRS2011 is a high power, high speed power MOSFET driver with independent high and low side referenced output channels, ideal for Class D Audio and DC-DC converter applications. Logic inputs are compatible with standard CMOS or LSTTL outputs, down to 3.0 V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver cross-conduction. Propagation delays are matched to simplify its use in high frequency applications. The floating channel can be used to drive an N-channel power MOSFET in the high side configuration which operates up to 200 V. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. www.irf.com AN-1097 1 Block Diagram The IRS2011 and IR2011 share the same block diagram. The functionality of the two ICs is the same. Electrical Characteristic Differences All measurement conditions remain unchanged unless noted. Parameters not mentioned have not changed. Absolute Maximum Ratings Symbol Parameter Definition VB High side floating supply voltage VS High side floating supply offset voltage VCC Low side fixed supply voltage min IR2011 max IRS2011 min max -0.3 225 -0.3 VB - 25 VB + 0.3 VB - 20 VB + 0.3 -0.3 25 -0.3 20 (Note1) Units 220 (Note1) V Note1: In the IRS2011, all supplies are fully tested at 25 V and an internal 20 V clamp exists for each supply. The 20 V, internal clamp improves the IC survivability against supply transient spikes but at the same time reduces the absolute maximum rating to 20 V. Recommended Operating Conditions The minimum VS is changed from -4 V (IR2011) to -5 V (IRS2011), which increases the VS negative voltage capability by 1 V. www.irf.com AN-1097 2 Dynamic Electrical Characteristics Symbol Parameter Definition IR2011 typ max IRS2011 typ max ton Turn-on propagation delay (Vs = 0 V) 80 - 60 80 toff Turn-off propagation delay (Vs = 200 V) 75 - 60 80 tr Turn-on rise time 35 50 25 40 tf Turn-off fall time 20 35 15 35 Units ns The IRS2011 has reduced in propagation delays and faster rise/fall times when compared to the IR2011. Static Electrical Characteristics Symbol Parameter Definition min IR2011 typ max min IRS2011 typ max VIH Logic "1" input voltage (VCC = 10 V to 20 V) 2.2 - - 2.5 - - VIL Logic "0" input voltage (VCC = 10 V to 20 V) - - 0.7 - - 0.7 IQBS Quiescent VBS supply current (VIN = 0V or 3.3V) - 90 210 - 120 210 IQCC Quiescent VCC supply current (VIN = 0V or 3.3V) - 140 230 - 200 300 IIN+ Logic “1” input bias current - 7.0 20 3.0 10 IIN- Logic “0” input bias current - - 1.0 - - 1.0 - VBSUV+ VBS supply undervoltage positive going threshold 8.2 9.0 9.8 8.3 9.0 9.7 VBSUV- VBS supply undervoltage negative going threshold 7.4 8.2 9.0 7.5 8.2 8.9 VCCUV+ VCC supply undervoltage positive going threshold 8.2 9.0 9.8 8.3 9.0 9.7 VCCUV- VCC supply undervoltage negative going threshold 7.4 8.2 9.0 7.5 8.2 8.9 Units V uA V Some Static Electrical Characteristics are different for the IR2011 and the IRS2011 HVICs. With the IRS2011, 1. VIH is increased to 2.5 V for better noise immunity yet still maintains 3.3 V logic compatibility. 2. Both IQCC and IQBS have increase slightly. 3. The IIN+ has been reduced for the IRS2011. 4. The VCC and VBS under voltage thresholds (max and min) show a slight difference between the two devices. This is not expected to have an impact on many designs. Figures This figures shown in this section compare figures shown in the IR2011 (left column) and IRS2011 (right column) datasheets. Illustrations that have not changed between the two datasheets have not been included in this section. www.irf.com AN-1097 3 Turn-on Propagation Delay (ns) IR2011 IRS2011 500 400 300 200 100 Typ. 0 -50 -25 0 25 50 75 100 125 Temperature (oC) Turn-on Propagation Delay (ns) Figure 2A. Turn-on Propagation Delay vs. Temperature 500 400 300 200 Typ. 100 0 10 12 14 16 18 20 Supply Voltage (V) Turn-off Propagation Delay (ns) Figure 2B. Turn-on Propagation Delay vs. Supply Voltage 500 400 300 200 100 Typ. 0 -50 -25 0 25 50 75 100 125 Temperature (oC) Figure 3A. Turn-off Propagation Delay vs. Temperature www.irf.com AN-1097 4 Turn-off Propagation Delay (ns) 500 400 300 200 Typ. 100 0 10 12 14 16 18 20 Supply Voltage (V) Figure 3B. Turn-off Propagation Delay vs. Supply Voltage Turn-on Rise Time (ns) 100 80 60 Max. 40 Typ. 20 0 -50 -25 0 25 50 75 100 125 o Temperature ( C) Figure 4A. Turn-on Rise Time vs. Temperature Turn-on Rise Time (ns) 100 80 Max. 60 Typ. 40 20 0 10 12 14 16 18 20 Supply Voltage (V) Figure 4B. Turn-on Rise Time vs. Supply Voltage www.irf.com AN-1097 5 Turn-off Fall Time (ns) 50 40 Max. 30 Typ. 20 10 0 -50 -25 0 25 50 75 100 125 Temperature (oC) Figure 5A. Turn-off Fall Time vs. Temperature Turn-off Fall Time (ns) 50 Max. 40 30 Typ. 20 10 0 10 12 14 16 18 20 Supply Voltage (V) Figure 5B. Turn-off Fall Time vs. Supply Voltage Logic "1" Input Voltage (V) 5 4 3 Min. 2 1 0 -50 -25 0 25 50 75 100 125 Temperature (oC) Figure 8A. Logic "1" Input Voltage vs. Temperature www.irf.com AN-1097 6 Logic "1" Input Voltage (V) 5 4 3 Min. 2 1 0 10 12 14 16 18 20 Supply Voltage (V) Figure 8B. Logic "1" Input Voltage vs. Supply Voltage V BS Supply Current (A) 600 500 400 300 200 100 Max. 0 -50 Typ. -25 0 25 50 75 100 125 Temperature (oC) V BS Supply Current (A) 600 500 400 300 200 100 Max. 0 Typ. 10 12 14 16 18 20 VBS Floating Supply Voltage (V) www.irf.com AN-1097 7 V CC Supply Current (A) 600 500 400 300 Max. 200 Typ. 100 0 -50 -25 0 25 50 75 100 125 Temperature (oC) Figure 14A. VCC Supply Current vs. Temperature V CC Supply Current (A) 600 500 400 300 200 Max. 100 Typ. 0 10 12 14 16 18 20 VCC Supply Voltage (V) Logic "1" Input Bias Current (A) Figure 14B. VCC Supply Current vs. VCC Supply Voltage 100 80 60 40 20 Max. Typ. 0 -50 -25 0 25 50 75 100 125 Temperature (oC) Figure 15A. Logic "1" Input Bias Current vs. Temperature www.irf.com AN-1097 8 Logic "1" Input Bias Current (A) 100 80 60 40 20 Max. 0 Typ. 10 12 14 16 18 20 V CC and V BS UV Threshold (+) (V) Supply Voltage (V) 12 11 10 Max. 9 Typ. Min. 8 7 -50 -25 0 25 50 75 100 125 Temperature (oC) V CC and V BS UV Threshold (-) (V) Figure 17. VCC and VBS Undervoltage Threshold (+) vs. Temperature 12 11 10 9 Max. Typ. 8 Min. 7 -50 -25 0 25 50 75 100 125 Temperature (oC) Figure 18. VCC and VBS Undervoltage Threshold (-) vs. Temperature Summary This document highlights the differences between the IRS2011 and the IR2011 HVICs. www.irf.com AN-1097 9