Overview
The NCP303150MNTWG from onsemi is an integrated driver and MOSFET module designed for high-current DC-DC buck power conversion applications. This module combines a MOSFET driver, high-side MOSFET, and low-side MOSFET into a single package, significantly reducing package parasitics and board space compared to discrete component solutions. It is optimized for high-performance applications, including desktop and notebook microprocessors, graphic cards, and network devices such as routers and switches.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Breakdown Voltage MOSFETs | VDS | - | 30 | - | 30 | V |
| Average Current Capability | - | - | - | - | 50 | A |
| Switching Frequency | fSW | - | - | - | 1 | MHz |
| PWM Input Voltage High | VPWM_HI | TA=25°C, VCC/PVCC=5V | 2.35 | 2.45 | 2.55 | V |
| PWM Input Voltage Low | VPWM_LO | TA=25°C, VCC/PVCC=5V | - | - | 0.65 | V |
| UVLO Threshold | VUVLO | VCC rising | 3.8 | 4.1 | 4.2 | V |
| Over-Current Limit | ILIM | - | 74 | 80 | 86 | A |
| Package Type | - | - | - | - | PQFN39 | - |
Key Features
- High-performance, universal footprint, copper-clip 5 mm x 6 mm PQFN package
- Capable of switching at frequencies up to 1 MHz
- Compatible with 3.3 V or 5 V PWM input
- Responds properly to 3-level PWM inputs
- Precise current monitoring with an internal current monitor
- Option for zero cross detection with 3-level PWM
- Internal bootstrap diode
- Catastrophic fault detection including thermal flag (OTP) for over-temperature condition, over-current protection (OCP), and under-voltage lockout (UVLO) on VCC and PVCC
- Supports Intel® Power State 4 applications
Applications
- Desktop and notebook microprocessors
- Graphic cards
- Routers and switches
- Other high-current DC-DC buck power conversion applications
Q & A
- What is the NCP303150MNTWG used for?
The NCP303150MNTWG is used for high-current DC-DC buck power conversion applications, integrating a MOSFET driver, high-side MOSFET, and low-side MOSFET into a single package.
- What is the maximum switching frequency of the NCP303150MNTWG?
The NCP303150MNTWG can switch at frequencies up to 1 MHz.
- What are the key features of the NCP303150MNTWG package?
The package is a high-performance, universal footprint, copper-clip 5 mm x 6 mm PQFN package.
- Is the NCP303150MNTWG compatible with 3.3 V or 5 V PWM input?
Yes, the NCP303150MNTWG is compatible with both 3.3 V and 5 V PWM inputs.
- What kind of fault detection does the NCP303150MNTWG have?
The NCP303150MNTWG includes catastrophic fault detection such as thermal flag (OTP) for over-temperature condition, over-current protection (OCP), and under-voltage lockout (UVLO) on VCC and PVCC.
- How does the zero cross detection function work in the NCP303150MNTWG?
The zero cross detection function is enabled via the ZCD_EN pin. When set high, it allows the module to conduct zero current detection during discontinuous conduction mode (DCM).
- What is the purpose of the internal bootstrap diode in the NCP303150MNTWG?
The internal bootstrap diode supplies the charge to turn on the high-side MOSFET and is recharged during the freewheeling interval when the low-side MOSFET is on.
- What is the maximum average current capability of the NCP303150MNTWG?
The NCP303150MNTWG is capable of handling average currents up to 50 A.
- What are some common applications for the NCP303150MNTWG?
Common applications include desktop and notebook microprocessors, graphic cards, routers, and switches.
- How does the current monitoring feature work in the NCP303150MNTWG?
The current monitor accurately senses high-side and low-side MOSFET currents and sums them together to replicate the output filter inductor current.
- What is the package type of the NCP303150MNTWG?
The package type is PQFN39.
