标题: MCP14628 Data Sheet [打印本页] 作者: admin 时间: 2010-4-17 15:52 标题: MCP14628 Data Sheet 2A Synchronous Buck Power MOSFET Driver
The MCP14628 is a synchronous MOSFET driver used for driving MOSFETs in a rectified bridge arrangement. This type of arrangement is typical of synchronous buck converter topologies.There are two separate drivers contained in the MCP14628. the low-side driver output drives a non-floating or ground reference N-Channel MOSFET. The high-side driver is designed to drive a floating N-Channel MOSFET. since the N-Channel is floating, this output needs to be able to handle the high voltages required to fully turn on the high-side MOSFET. An external bootstrap capacitor is used to provide the additional voltage. The MCP14628 is available in a surface mount 8 Lead SOIC package with a body width of 150 mils and the 8 Lead 3mmX3mm DFN package.
Parameter Name Value
Power Single
Peak Output Current (mA) 2000
Output Resistance (RH/RL)(Max. @ 25°C) 2.5/2.5
Max. Supply Voltage (V) 5
Input/Output Delay (td1, td2)1 (ns) 25/25
Configuration Non-Inverting
Description High-Side/Low-Side MOSFET Drivers
Operating Temp. Range (°C) -40 to 85
Features
- Adaptive Cross conduction protection
- High capacitive load drive Capability:
3000 pF in 8.0 ns (typ)
- Low Supply Current: 80 uA (typ)
- High Peak Output Current:
Source 2.0A (UGATE & LGATE)
Sink 2.0A (UGATE) & 4A (LGATE)
- Internal Bootstrap Blocking Device
- Enhanced Light Load Efficiency Mode
- Supports Floating High-Side Drive
- Packaging:
8 Lead surface mount SOIC, 150 mil body
8 Lead 3mmX3mm DFN
