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Document overview
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Technical content
Features
- Qualified to AEC Q100
- Floating channel designed for bootstrap operation up fully operational to + 600V
- Tolerance to negative transient voltage on VS pin
- dV/dt immune.
- Gate drive supply range from 10V to 20V
- Under-voltage lockout
- CMOS Schmit-triggered inputs with pull-up
- High side output out of phase with input (Inverted input) Typical Applications
- Diesel and gasoline Injectors/Valves
- MOSFET-and IGBT high side driver applications
Description
The FAN7081-GF085 is a high-side gate drive IC designed for high voltage and high speed driving of MOSFET or IGBT, which operates up to 600V. ON Semiconductor's high-voltage process and com-mon-mode noise cancellation technique provide stable opera-tion in the high side driver under high-dV/dt noise circumstances. An advanced level-shift circuit allows high-side gate driver operation up to VS=-5V (typical) at VBS=15V. Logic input is compatible with standard CMOS outputs. The UVLO cir-cuits prevent from malfunction when VCC and VBS are lower than the specified threshold voltage. It is available with space saving SOIC-8 Package. Minimum source and sink current capability of output driver is 250mA and 500mA respec tively, which is suitable for magnetic- and piezo type injectors and gen-eral MOSFET/IGBT based high side driver applications. SOIC-8
Ordering Information
Temp. FAN7081M-GF085 SOIC-8 -40 C ~ 125 C FAN7081MX-GF085 SOIC-8 -40 C ~ 125 X : Tape & Reel type
www.onsemi.com FAN7081-GF085 High Side Gate Driver Block Diagrams PULSE GEN UV DETECT PULSE FILTER R R S Q HV Level Shift IN VB HO VS VCC COM UV DETECT Pin Assignments 4 5 8VCC IN N.C VS HO VB N.C COM Pin Definitions Pin Number Pin Name I/O Pin Function Description
1 VCC P Driver supply voltage
2 IN I Logic input for high side gate drive output, out of phase with HO
3 COM P Ground
4 NC - NC
5 NC - NC
6 VS P High side floating offset for MOSFET Source connection
7 HO A High side drive output for MOSFET Gate co
8 VB P Driver output stage supply
www.onsemi.com FAN7081-GF085 High Side Gate Driver Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are abso- lute voltages referenced to COM. Parameter Symbol Min. Max. Unit High side floating supply offset voltage VS VB-25 VB+0.3 V High side floating supply voltage VB -0.3 625 V High side floating output voltage VHO Vs-0.3 VB+0.3 V Supply voltage VCC -0.3 25 V Input voltage for IN VIN -0.3 Vcc+0.3 V Power Dissipation 1) Pd 0.625 W Thermal resistance, junction to ambient 1) Rthja 200 C/W Electrostatic discharge voltage (Human Body Model) VESD 1K V Charge device model VCDM 500 V Junction Temperature Tj 150 C Storage Temperature TS -55 150 C Note: 1) The thermal resistance and power dissipation rating are measured bellow conditions; JESD51-2: Integrated Circuit Thermal Test Method Environmental Conditions - Natural codition(StillAir) JESD51-3: Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Package Recommended Operating Conditions Parameter Symbol Min. Max. Unit High side floating supply voltage(DC) Transient:-10V@ 0.2 us VB VS + 10 Vs + 20 V High side floating supply offset voltage(DC) VS -4 (@VBS >= 10V) -5 (@VBS >= 11.5V) 600 V High side floating supply offset voltage( Tran- sient) VS -25 (~200ns) -20(200ns ~240ns) -7(240ns~400ns) 600 V High side floating output voltage VHO VS VB V Allowable offset voltage Slew Rate 1) dv/dt - 50 V/ns Supply voltage VCC 10 20 V Input voltage for IN VIN 0 Vcc V Switching Frequency 2) Fs 200 KHz Minimum Pulse Width(3) Tpulse 85 - ns Ambient Temperature Ta -40 125 C For proper operations the device should be used within the recommended conditions. -40°C <= Ta <= 125°C Note: 1) Guaranteed by design. 2) Duty = 0.5 3) Guaranteed by design. Refer to Figure4a,4b and 4c on Page 8.
www.onsemi.com FAN7081-GF085 High Side Gate Driver Statics Electrical Characteristics Unless otherwise specified, -40°C <= Ta <= 125°C,VCC = 15V, VBS = 15V, VS = 0V, RL = 50, CL = 2.5nF. Parameter Symbol Conditions Min. Typ. Max. Unit Vcc and VBS supply Characteristics VCC and VBS supply under voltage positive going threshold VCCUV+ VBSUV+ - 8.7 9.8 V VCC and VBS supply under voltage negative going threshold VCCUV- VBSUV- 7.4 8.2 - V VCC and VBS supply under voltage hysteresis VCCUVH VBSUVH - 0.2 0.5 - V Under voltage lockout response time tduvcc tduvbs VCC: 10V-->7.3V or 7.3V-->10V VBS: 10V-->7.3V or 7.3V-->10V 0.5 0.5 us us Offset supply leakage current I LK VB=VS=600V - - 50 uA Quiescent VBS supply current IQBS VIN=0 - 23 250 uA Quiescent Vcc supply current IQCC1 VIN= 0V - 42 120 uA Quiescent Vcc supply current IQCC2 VIN=15V - 25 100 uA Input Characteristics High logic level input voltage VIH 0.63VCC - - V Low logic level input voltage VIL - - 0.4VCC V Low logic level input bias current for IN IIN+ VIN=0 - 15 50 uA High logic level input bias current for IN IIN- VIN=15V - 0 1 uA Output characteristics High level output voltage, V BIAS-VO VOH IO=0 - - 0.1 V Low level output voltage, VO VOL IO=0 - - 0.1 V Peak output source current IO1+ 250 - - mA Peak output sink current IO1- 500 - - mA Equivalent output resistance ROP 40 60 RON 20 30 Note: The input parameter are referenced to COM. The VO and IO parameters are referenced to COM.
www.onsemi.com FAN7081-GF085 High Side Gate Driver Dynamic Electrical Characteristics Unless otherwise specified, -40°C <= Ta <= 125°C, VCC = 15V, VBS = 15V, VS = 0V, RL = 50, CL = 2.5nF. Parameter Symbol Conditions Min. Typ. Max. Unit Input-to-output turn-on propagation delay tplh 50% input level to 10% output level, VS = 0V 130 300 ns Input-to-output turn-off propagation delay tphl 50% input level to 90% output level VS = 0V - 140 300 ns Output rising time tr1 10% to 90%, Tj=25C,VBS=15V - 15 400 ns tr2 10% to 90% - 500 ns Output falling time tf1 90% to 10%, Tj=25C,VBS=15V - 10 150 ns tf2 90% to 10% - 500 ns
www.onsemi.com FAN7081-GF085 High Side Gate Driver
Application Information
- Relationship in input/output and supplies Table.1 Truth table for Vcc, VBS,VIN, and VHO VCC VBS IN HO < VCCUVLO- X X OFF X < VBSUVLO- X OFF X X HIGH OFF > VCCUVLO+ > VBSUVLO+ LOW ON Notes: X means independent from signal
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