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FAN8811T: High-Frequency, High Side and Low Side Gate Driver IC

Datasheet: High-Frequency, High Side and Low Side Gate Driver IC
Rev. 3 (286kB)
Product Overview
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The FAN8811 is high side and low side gate-drive IC designed for high-voltage, high-speed, driving MOSFETs operating up to 80V.
The FAN8811 integrates a driver IC and a bootstrap diode. The driver IC features low delay time and matched PWM input propagation delays, which further enhance the performance of the part.
The high speed dual gate driver are designed to drive both the high-side and low-side of N-Channel MOSFETs in a half bridge or synchronous buck configuration. The floating high-side driver is capable of operating with supply voltages of up to 80 V. In the dual gate driver, the high side and low side each have independent inputs which allow maximum flexibility of input control signals in the application. The PWM input signal (high level) can be 3.3 V, 5 V or up to VDD logic input to cover all possible applications. The bootstrap diode for the high-side driver bias supply is integrated in the chip. The high-side driver is referenced to the switch node (HS) which is typically the source pin of the high-side MOSFET and drain pin of the low-side MOSFET. The low-side driver is referenced to VSS which is typically ground. The functions contained are the input stages, UVLO protection, level shift, bootstrap diode, and output driver stages.
Features
 
  • Drives two N-Channel MOSFETs in High & Low Side
  • Integrated Bootstrap Diode for High Side Gate Drive
  • Bootstrap Supply Voltage Range up to 100V
  • 3 A Source, 6 A Sink Output Current Capability
  • Drives 1nF Load with Typical Rise/Fall Times of 6 ns/4 ns
  • TTL Compatible Input Thresholds
  • Wide Supply Voltage Range 7.5 V to 16 V (Absolute Maximum 18 V)
  • Fast Propagation Delay Times (Typ. 30 ns)
  • 2 ns Delay Matching (Typical)
  • Under-Voltage Lockout (UVLO) Protection for Drive Voltage
  • Operating Junction Temperature Range of -40°C to 125°C
Applications   End Products
  • Half-Bridge and Full-Bridge Converters
  • Synchronous-Buck Converters
  • Two-Switch Forward Converters
 
  • Power Supplies for Telecom and Datacom
  • Class-D Audio Amplifiers
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FAN8811TMPX Active
Pb-free
Halide free
FAN8811T WDFN-10 511DU 1 260 Tape and Reel 3000 $0.944
Market Leadtime (weeks) : 13 to 16

Product
Description
Pricing ($/Unit)
Compliance
Status
Power Switch
Number of Outputs
Topology
Isolation Type
Vin Max (V)
VCC Max (V)
Drive Source/Sink Typ (mA)
Rise Time (ns)
Fall Time (ns)
tp Max (ns)
Package Type
FAN8811TMPX  
 $0.944 
Pb
H
 Active   
MOSFET
2
High-Low
Junction Isolation
100
18
3000 / 6000
6
4
45
WDFN-10
Case Outlines
511DU   
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