The MCP14700 is a dual input synchronous MOSFET driver designed to independently control high-side and low-side N-channel MOSFETs in applications such as synchronous buck converters and BLDC motor control. It is available in an 8-lead SOIC package and an 8-lead 3mm × 3mm DFN package with an exposed thermal pad. The device provides 2A typical peak source current and 3.5A typical peak sink current on the low-side output, with 2A typical peak sink current on the high-side output. It can drive a 3300pF load in 10ns typical, and operates with 3.0V TTL/CMOS logic inputs. The supply voltage is rated up to 36V, with a quiescent supply current of 45µA typical. Internal bootstrap circuitry supports high-side drive, and the device includes undervoltage lockout with 500mV hysteresis and overtemperature protection that triggers at 147°C typically.
The MCP14700 is a high-speed synchronous MOSFET driver designed to optimally drive a high-side and low-side N-Channel MOSFET.
The MCP14700 has two PWM inputs to allow independent control of the external N-Channel MOSFETs. Since there is no internal cross condition protection circuitry the external MOSFET dead time can be tightly controlled allowing for more efficient systems or unique motor control algorithms.
The transition thresholds for the PWM inputs are typically 1.6V on a rising PWM input signal and typically 1.0V on a falling PWM input signal. This make the MCP14700 ideal suited for controllers that utilize 3.0V TTL/CMOS logic. The PWM inputs are internally pulled low.
The HIGHDR and LOWDR source current capability of the MCP14700 device is typically 2A peak. While the HIGHDR can sink 2A peak typically, the LOWDR can sink 3.5A typically. The low resistance pull-up and pulldown drive allow the MCP14700 to quickly transition a 3300pF load in typically 10ns. Bootstrapping for the high-side drive is internally implemented which allows for a reduced system cost and design complexity.
The MCP14700 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 | MCP14700 |
| Product Name | Dual Input Synchronous MOSFET Driver |
