admin 发表于 2010-4-17 16:06:48

TC4451/TC4452 DataSheet

http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifTC4451/TC4452 12A High-Speed MOSFET Drivers


The TC4451/52 are single-output MOSFET Drivers, which are high-current buffer/drivers capable of driving large MOSFETs and Insulated Gate Bipolar Transisitors (IGBT). Their high drive current of over 12A is capable of driving some of largest power transistors in use today. The TC4451/2 have matched leading and falling-edge propogation delay times and have very low cross-conduction current to minimize the overall power dissipation of the device. They will not latch up under any conditions within their power and voltage ratings. They are not subject to damage when up to 5V of noise spiking (of either polarity) occurs on the ground pin. They can accept, without damage or logic upset, more than 1500 mA of reverse current (of either polarity) being forced back into their outputs. Additionally, all terminals are fully protected against up to 4kV of electrostatic discharge.

Parameter NameValue
PowerSingle
Peak Output Current (mA)13000
Output Resistance (RH/RL)(Max. @ 25°C)1.5/1.5
Max. Supply Voltage (V)18
Input/Output Delay (td1, td2)1 (ns)52/52
ConfigurationInverting
DescriptionLow-Side MOSFET Drivers, 2.0A to 9.0A Peak Output Current
Operating Temp. Range (°C)-40 to 125

   Features
Low Shoot-Through/Cross-Conduction in Output Stage
High Peak Output Current:13A (typ)
High Continuous Output Current: 2.6A (max)
Wide Input Voltage Supply Range: 4.5V-18V.
Matched Fast Rise and Fall Times:
-21 ns with 10,000pF load
-42 ns with 22,000 pF Load
Latch-up Protection to Withstand 1.5A Output Reverse Current
Pin-Compatible with the TC4421/22, TC4421A/22A,andTC4420/29
Space-Saving, Thermally-Enhanced, 8-Pin DFN Package


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