FAN7842 Half Bridge Gate Driver Features Description ■ Floating Channels Designed for Bootstrap Operation to +200V. The FAN7842, a monolithic half-bridge gate driver IC, can drive MOSFETs and IGBTs which operate up to +200V. Fairchild’s high voltage process and common-mode noise canceling technique provides stable operation of the high-side driver under high dv/dt noise circumstances. An advanced level shift circuit allows high-side gate driver operation up to VS=-9.8 V(typ.) for VBS=15V. The input logic level is compatible with standard TTLseries logic gates. UVLO circuits for both channels prevent malfunction when VCC and VBS are lower than the specified threshold voltage. Output driver current(source/sink) is typically 350mA/650mA, respectively. ■ Typically 350mA/650mA Sourcing/Sinking Current Driving Capability for Both Channels ■ Common-Mode dv/dt Noise Canceling Circuit ■ Extended Allowable Negative VS Swing to -9V for Signal Propagation @ VCC=VBS=15V ■ VCC & VBS Supply Range from 10V to 20V ■ UVLO Functions for Both Channels ■ TTL Compatible Input Logic Threshold Levels ■ Matched Propagation Delay Below 50nsec 8 SOP ■ Output In-phase with Input Applications 1 ■ Half and Full Bridge Converters ■ Current Fed Push-Pull Converters ■ Synchronous Buck Converters Ordering Information Part Number FAN7842M FAN7842MX ©2006 Fairchild Semiconductor Corporation FAN7842 Rev.1.0.0 Operating Temp. Range Pb-Free Package -40°C to +125°C Yes 8-SOP 1 Packing Method Tube Tape & Reel www.fairchildsemi.com FAN7842 Half Bridge Gate Driver January 2006 FAN7842 Half Bridge Gate Driver Typical Application Diagram DB VC C U p to 2 0 0 V 8 VC C C BS 1 2 HIN 3 7 HO FAN7842 On / Off Controller 4 C OM LIN VB 6 VS L OAD 5 LO Internal Block Diagram High-SideDriver UVLO NOISE CANCELLER HIN 2 DELAY R R Q S DRIVER Level Shifter Pulse Generation 8 VB 7 HO 6 VS 1 VCC 5 LO 4 COM 500kW Low-Side Driver UVLO DELAY DELAY 500kW FAN7842 Rev. 1.0.0 2 DRIVER LIN 3 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Pin Assignments 1 HIN 2 LIN 3 COM 4 FAN7842 VCC 8 VB 7 HO 6 VS 5 LO Pin Definitions Pin Number Pin Name I/O VCC 2 HIN I Logic Input for High Side Gate Driver Output 3 LIN I Logic Input for Low Side Gate Driver Output 4 COM - Logic Ground and Low Side Driver Return 5 LO O Low Side Driver Output 6 VS I High Voltage Floating Supply Return 7 HO O High Side Driver Output 8 VB I High Side Floating Supply FAN7842 Rev. 1.0.0 I Pin Function Description 1 Low Side Supply Voltage 3 www.fairchildsemi.com Symbol Min. Max. High side offset voltage Parameter VS VB-25 VB+0.3 High side floating supply voltage VB -0.3 225 High side floating output voltage HO VHO VS-0.3 VB+0.3 Low side and logic fixed supply voltage VCC -0.3 25 Low side output voltage LO VLO -0.3 VCC+0.3 VIN -0.3 VCC+0.3 Logic ground COM VCC-25 VCC+0.3 Allowable offset voltage SLEW RATE dVs/dt Logic input voltage(HIN, LIN) Power dissipation Thermal resistance, junction to ambient 50 Unit V V/ns PD - 0.625 W Rthja - 200 °C/W Junction temperature TJ 150 °C Storage temperature TS 150 °C Note: Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltage referenced to COM, all currents are defined positive into any lead. Recommended Operating Ratings. Parameter Symbol Min. Max. VB VS+10 VS+20 High side floating supply offset voltage VS 6-VCC 200 High side(HO) output voltage VHO VS VB Low side(LO) output voltage VLO COM VCC VCC High side floating supply voltage Logic input voltage(HIN, LIN) Low side supply voltage Ambient temperature VIN COM VCC 10 20 TA -40 125 Unit V °C ESD Level Parameter Pins Human Body Model (HBM) Machine Model (MM) All Pins Charged Device Model (CDM) Conditions Level R=1.5kΩ, C=100pF ±2000 C=200pF ±300 Unit V ±500 Note : The human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin. Pin6,Pin7 and Pin8 are rated at ±1500V. FAN7842 Rev. 1.0.0 4 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Absolute Maximum Ratings (VBIAS(VCC, VBS)=15.0V, TA = 25°C, unless otherwise specified. The VIN, VTH and IIN parameters are referenced to COM. The VO and IO parameters are referenced to COM and VS is applicable to HO and LO.) Parameter Symbol Condition VCC and VBS supply under voltage positive going threshold VCCUV+ VBSUV+ - VCC and VBS supply under voltage negative going threshold VCCUVVBSUV- - VCC supply under voltage lockout hysteresis VCCUVH VBSUVH - Min. Typ. Max. 8.2 9.2 10.0 7.6 8.7 9.6 - 0.6 - Offset supply leakage current ILK VB=VS=200V - - 10 Quiescent VBS supply current IQBS VIN=0V or 5V - 45 120 Quiescent VCC supply current IQCC VIN=0V or 5V - 70 180 Operating VBS supply current IPBS fin=20kHz,rms value - - 600 Operating VCC supply current IPCC fin=20kHz,rms value - - 600 Logic "1" input voltage VIH - 2.9 - - Logic "0" input voltage VIL - - - 0.8 High level output voltage, VBIAS-VO VOH - - 1.0 Low level output voltage, VO VOL - - 0.6 Logic "1" input bias current IIN+ VIN=5V - 10 20 Logic "0" input bias current IIN- VIN=0V - 1.0 2.0 Output high short circuit pulse current IO+ VO=0V, VIN=5V with PW<10us 250 350 - Output low short circuit pulsed current IO- VO=15V=VB,VIN=0V with PW<10us 500 650 - Allowable negative VS pin voltage for HIN signal propagation to HO VS - - -9.8 -7 Unit V uA uA V IO=20mA uA mA V Dynamic Electrical Characteristics VBIAS(VCC, VBS)=15.0V, VS=GND, CL=1000pF and TA=25°C, unless otherwise specified. Parameter Symbol Conditions Min. Typ. Max. Turn-on propagation delay ton VS=0V 100 170 300 Turn-off propagation delay toff VS=0V 100 200 300 Turn-on rise time tr - 20 60 140 Turn-off fall time tf - - 30 80 MT - - - 50 Delay matching, HS & LS turn-on/off FAN7842 Rev.1.0.0 5 Unit ns www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Electrical Characteristics FAN7842 Half Bridge Gate Driver 300 Turn-Off Propagation Delay [nsec] Turn-On Propagation Delay [nsec] Typical Performance Characteristics VCC=VBS COM=0V CL=1nF Ta=25°C 250 High-Side 200 150 Low-Side 100 10 12 14 16 18 300 VCC=VBS=15V COM=0V CL=1nF 275 250 High-Side 225 Low-Side 200 175 150 125 -40 20 -20 0 Supply Voltage [V] 40 60 80 100 120 Figure 4. Turn-Off Propagation Delay vs. Temp. 64 300 VCC=VBS=15V COM=0V CL=1nF 275 250 225 Turn-On Rising Time [nsec] Turn-On Propagation Delay [nsec] Figure 1.Turn-On Propagation Delay vs. Supply Voltage High-Side 200 175 Low-Side 150 125 100 75 VCC=VBS COM=0V CL=1nF Ta=25°C 62 60 58 56 54 Low-Side 52 50 High-Side 48 46 44 50 42 -40 -20 0 20 40 60 80 100 120 10 11 12 13 Temperature[°C] 80 75 240 Turn-On Rising Time [nsec] VCC=VBS COM=0V CL=1nF Ta=25°C 260 High-Side 220 200 Low-Side 180 15 16 17 18 19 20 Figure 5. Turn-On Rising Time vs. Supply Voltage 300 280 14 Supply Voltage [V] Figure 2. Turn-On Propagation Delay vs. Temp. Turn-Off Propagation Delay [nsec] 20 Temperature [°C] 160 140 120 VCC=VBS=15V COM=0V CL=1nF 70 65 60 55 50 Low-Side 45 40 35 High-Side 30 25 20 15 10 5 0 100 10 12 14 16 18 20 -40 Supply Voltage [V] 0 20 40 60 80 100 120 Temperature [°C] Figure 3. Turn-Off Propagation Delay vs. Supply Voltage FAN7842 Rev.1.0.0 -20 Figure 6. Turn-On Rising Time vs. Temp. 6 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Typical Performance Characteristics (Continued) VCC=VBS COM=0V CL=1nF Ta=25°C 32 30 28 Output Sourcing Current [mA] Turn-Off Falling Time [nsec] 34 High-Side 26 24 22 Low-Side 20 18 440 VCC=VBS=15V COM=0V LO=HO=0V 420 400 380 High-Side 360 Low-Side 340 320 300 280 16 10 11 12 13 14 15 16 17 18 19 -40 20 -20 0 Supply Voltage [V] 50 60 80 100 120 900 VCC=VBS=15V COM=0V CL=1nF 45 40 Output Sinking Current [mA] Turn-Off Falling Time [nsec] 40 Figure 10. Output Sourcing Current vs. Temp. Figure 7. Turn-Off Falling Time vs. Supply Voltage High-Side 35 30 25 Low-Side 20 15 10 -40 -20 0 20 40 60 80 100 VCC=VBS COM=0V LO=VCC, HO=VB Ta=25°C 800 700 Low-Side High-Side 600 500 400 300 120 10 12 14 16 18 20 Supply Voltage [V] Temperature [°C] Figure 8. Turn-Off Falling Time vs. Temp. Figure 11. Output Sinking Current vs. Temp. 600 850 VCC=VBS COM=0V LO=HO=0V Ta=25°C 550 500 450 Output Sinking Current [mA] Output Sourcing Current [mA] 20 Temperature [°C] 400 High-Side 350 300 Low-Side 250 200 150 VCC=VBS=15V COM=0V LO=VCC, HO=VB 800 750 700 High-Side 650 Low-Side 600 550 500 100 10 12 14 16 18 -40 20 Supply Voltage [V] 0 20 40 60 80 100 120 Temperature [°C] Figure 9. Output Sourcing Current vs. Supply Voltage FAN7842 Rev.1.0.0 -20 Figure 12. Output Sinking Current vs. Temp. 7 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Typical Performance Characteristics (Continued) Allowable Negative VS Voltage for Signal Propagatio to High-Side [V] 95 -4 VCC=VBS COM=0V Ta=25°C -6 VCC=VBS=15V COM=0V HIN=LIN=0V 90 85 80 IQCC [uA] -8 -10 -12 75 70 65 60 -14 55 -16 50 45 -18 10 12 14 16 18 20 -40 -20 0 20 Supply Voltage [V] -9.0 80 100 120 80 VCC=VBS=15V COM=0V -9.2 VCC=15V COM=0V HIN=LIN=0V Ta=25°C 70 60 -9.4 -9.6 -9.8 -10.0 50 40 30 20 -10.2 10 -10.4 -40 -20 0 20 40 60 80 100 0 120 0 5 Temperature [°C] 10 15 20 Supply Voltage [V] Figure14. Allowable Negative VS Voltage for Signal Propagation to High Side vs. Tem. Figure17. IQBS vs. Supply Voltage 100 52 VBS=15V COM=0V HIN=LIN=0V Ta=25°C VCC=15V COM=0V HIN=LIN=0V 50 48 IQBS [uA] IQCC [uA] 60 Figure16. IQCC vs. Temperature IQBS [uA] Allowable Negative VS Voltage for Signal Propagation to High-Side [V] Figure13. Allowable Negative VS Voltage for Signal Propagation to High Side vs. Supply Voltage 80 40 Temperature [° C] 60 40 46 44 42 40 38 20 36 0 0 5 10 15 -40 20 0 20 40 60 80 100 120 Temperature [°C] Supply Voltage [V] Figure18. IQBS vs. Temperature Figure15. IQCC vs. Supply Voltage FAN7842 Rev.1.0.0 -20 8 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Typical Performance Characteristics (Continued) 0.7 VCC=VBS=15V COM=0V HIN=LIN=0V IL=20mA 0.20 0.18 VOL [V] 0.6 VOH [V] 0.22 VCC=VBS COM=0V HIN=LIN=5V IL=20mA Ta=25°C 0.5 High-Side 0.4 High-Side 0.16 Low-Side 0.14 Low-Side 0.12 0.3 0.10 0.2 10 12 14 16 18 -40 20 -20 0 20 Figure 19. High Level Output Voltage vs. Supply Voltage 60 80 100 120 Figure 22. Low Level Output Voltage vs. Temp. 40 0.60 VCC=VBS=15V COM=0V HIN=LIN=5V IL=20mA 0.50 30 0.45 Low-Side 0.40 High-Side 25 15 10 0.30 5 0.25 0 -20 0 20 40 60 80 100 IN+ 20 0.35 -40 VCC=VBS COM=0V IN=VCC or IN=0V Ta=25°C 35 IN+/IN- [uA] 0.55 VOH [V] 40 Temperature [°C] Supply Voltage [V] IN0 120 5 10 15 20 Supply Voltage [V] Temperature [°C] Figure 23. Input Bias Current vs. Supply Voltage Figure 20. High Level Output Voltage vs. Temp. 16 0.18 VCC=VBS COM=0V HIN=LIN=0V IL=20mA Ta=25°C 0.16 0.15 12 IN+ [uA] VOL [V] 0.17 HIN=LIN=5V 14 High-Side LIN 10 HIN 8 0.14 Low-Side 6 0.13 0.12 4 10 12 14 16 18 20 -40 Supply Voltage [V] 0 20 40 60 80 100 120 Temperature [° C] Figure 24. Input Bias Current vs. Temp. Figure 21. Low Level Output Voltage vs. Supply Voltage FAN7842 Rev.1.0.0 -20 9 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Typical Performance Characteristics (Continued) Input Logic Threshold Voltage [V] 10.0 VCCUV+/VCCUV- [V] 9.8 9.6 VCCUV+ 9.4 9.2 9.0 VCCUV- 8.8 8.6 8.4 8.2 8.0 -40 -20 0 20 40 60 80 100 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 VIH(LIN) VIH(HIN) VIL(LIN) VIL(HIN) -40 120 VCC=VBS=15V COM=0V -20 0 20 40 60 80 100 120 Temperature [°C] Temperature [°C] Figure 25. VCC UVLO Threshold Voltage vs. Temp. Figure 28. Input Logic Threshold Voltage vs. Temp. 10.0 VBSUV+/VBSUV- [V] 9.8 9.6 VBSUV+ 9.4 9.2 9.0 VBSUV- 8.8 8.6 8.4 8.2 8.0 -40 -20 0 20 40 60 80 100 120 Temperature [° C] Figure 26. VBS UVLO Threshold Voltage vs. Temp. 5 VB-to-COM =200V ILK [uA] 4 3 2 1 0 -40 -20 0 20 40 60 80 100 120 Temperature [°C] Figure 27. VB to COM Leakage Current vs. Temp. FAN7842 Rev.1.0.0 10 www.fairchildsemi.com 100nF 10µF 100nF 10µF 1 VCC 15Vdc 8 VB 4 COM VS 6 2 HIN HO 7 50% HIN LIN 15Vdc 1nF LO 50% 10% 3 LIN LO 5 FAN7842 t off- H t off- L ton-H ton-L 1nF MT HO 90% LO MT Figure 29. Switching Time Test Circuit HO Figure 32. Delay Matching Waveform Definition HIN LIN HO LO Figure 30. Input / Output Timing Diagram HIN LIN t on : Turn-on Delay Time t off : Turn-off Delay Time t r : Turn-on Rise Time t f : Turn-off Fall Time 50% t on to f f tr 90% HO LO 10% 50% tf 90% 10% Figure 31. Switching Time Waveform Definitions FAN7842 Rev.1.0.0 11 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Applications Information Dimemsions in millimeters 8-SOP FAN7842 Rev. 1.0.0 12 www.fairchildsemi.com FAN7842 Half Bridge Gate Driver Mechanical Dimensions TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. 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PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. Rev. I17