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  • MD18624電路

MD18624

雙通道5A高速低側柵極驅動器

The MD18624 high-frequency gate driver is designed to drive both low-side N-Channel MOSFETs with maximum control flexibility of independent inputs.
Each channel can source and sink 5A peak current along with rail-to-rail output capability. 7ns/6ns rise and fall time with 2.2nF load decrease the switching loss of MOSFET.
MD18624 has 11ns rising and falling propagation delay which allows the systems operating at high frequency with less delay matching variations. These delays are very suited for applications requiring dual-gate drivers with critical timing, such as synchronous rectifiers. When connecting two channels in parallel to increase current-drive capability, intelligent stack detection circuit is implemented to add extra 5nsdead-time between the two channels to avoid shoot through current without adding external series resistor.
The inputs can handle -10V to 26V PWM, which increases robustness against ringing from gate transformer and/or parasitic inductance of long routing traces. The input PINs thresholds are fixed and independent of the VDD supply voltage.
The MD18624 is offered in DFN-8 , SOP-8 and MSOP-8? packages

應用

  • 通信電源、數據中心電源 以及48V to 72V電池供電電源系統
  • 開關電源
  • 馬達驅動,光伏系統

特點

  • Two Independent Gate-Drive channels with Independent Inputs
  • 5-A Source and Sink Output Peak Currents
  • 7ns/6ns Rise and Fall Time with 2.2nF Load
  • Fast Propagation Delay (11ns Typical)
  • Excellent Propagation Delay Matching (1ns Typical)
  • Intelligent stack detection to support Channel A paralleled with Channel B
  • Input Pins Can Tolerate -10V to +26V, and are Independent of Supply Voltage Range
  • TTL Compatible Inputs
  • 5V to 26V VDD Operating Range, 28V ABS MAX
  • Symmetrical Undervoltage Lockout for Channel A and Channel B
  • Industry-standard-compatible Pinout
  • Available in both DFN-8 , SOP-8 and MSOP-8 Packages
  • Specified from -40°C to 140°C

典型應用電路

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