The MCP14628 is a dual MOSFET gate driver designed to drive high-side and low-side N-channel MOSFETs in non-isolated synchronous buck converters. It is available in an 8-lead SOIC package and an 8-lead 3mm × 3mm DFN package with an electrically isolated exposed pad. The device provides 2A typical peak sourcing current for both high-side and low-side outputs, and 3.5A typical peak sinking current for the low-side output. It features adaptive cross-conduction protection, internal bootstrap blocking, tri-state PWM shutdown, and operates with a 4.5V to 5.5V supply voltage. The high-side bootstrap pin supports up to +36V, and the driver can switch a 3300pF load in typically 10ns. It includes a diode emulation mode for improved light-load efficiency and meets AEC-Q200 automotive qualification standards.
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.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Metal-Oxide Semiconductor FET (MOSFET) |
| Product Number | MCP14628 |
| Product Name | 2A Synchronous Buck Power MOSFET Driver |
