Overview
The NCP45525IMNTWG-H is a controlled load switch from onsemi, part of the NCP4552x series. This device is designed to provide an efficient and area-reducing solution for power domain switching, incorporating advanced control and driver functionality with a high-performance, low on-resistance N-channel MOSFET in a single package. It is ideal for applications requiring low power consumption and a small footprint, making it suitable for power management and hot-swap scenarios.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage Range | VCC | 3 | 5.5 | V | |
| Input Voltage Range | VIN | 0.5 | 13.5 | V | |
| Output Voltage Range | VOUT | -0.3 | 18 | V | |
| Continuous MOSFET Current @ TA = 25°C | IMAX | 6.0 | A | ||
| Transient MOSFET Current (for up to 500 μs) | IMAX_TRANS | 24 | A | ||
| MOSFET On-Resistance (VCC = 3.3 V; VIN = 1.8 V) | RON | 18.0 | 24.0 | 25.0 | mΩ |
| Ambient Temperature Range | TA | -40 | 85 | °C | |
| Junction Temperature Range | TJ | -40 | 125 | °C |
Key Features
- Advanced Controller with Charge Pump: Enhances performance and efficiency.
- Integrated N-Channel MOSFET with Low RON: Provides high performance and low power consumption.
- Soft-Start via Controlled Slew Rate: Limits inrush current, suitable for hot-swap applications.
- Adjustable Slew Rate Control: Available on NCP45525, adjustable with an external capacitor.
- Power Good Signal (NCP45524): Indicates when the MOSFET is fully charged.
- Extremely Low Standby Current: Minimizes power consumption in standby mode.
- Load Bleed (Quick Discharge): Facilitates rapid discharge of the load.
- Pb-Free Device: Compliant with environmental regulations.
Applications
- Portable Electronics and Systems
- Notebook and Tablet Computers
- Telecom, Networking, Medical, and Industrial Equipment
- Set-Top Boxes, Servers, and Gateways
- Hot Swap Devices and Peripheral Ports
Q & A
- What is the input voltage range of the NCP45525IMNTWG-H?
The input voltage range is from 0.5 V to 13.5 V.
- What is the typical on-resistance of the MOSFET at VCC = 3.3 V and VIN = 1.8 V?
The typical on-resistance is 24.0 mΩ.
- How does the soft-start feature work?
The soft-start feature limits the inrush current via a controlled slew rate, making it suitable for hot-swap applications.
- Can the slew rate be adjusted on the NCP45525IMNTWG-H?
- What is the purpose of the Power Good signal on the NCP45524?
The Power Good signal indicates when the gate of the MOSFET is fully charged.
- What is the maximum continuous MOSFET current at TA = 25°C?
The maximum continuous MOSFET current is 6.0 A.
- What is the thermal resistance, junction-to-ambient, for the device?
The thermal resistance, junction-to-ambient, is 40.0 °C/W for a surface-mounted device on an FR4 board using a 1 sq-in pad.
- Is the NCP45525IMNTWG-H Pb-free?
- What are some typical applications for the NCP45525IMNTWG-H?
Typical applications include portable electronics, notebook and tablet computers, telecom and networking equipment, and hot swap devices.
- How does the load bleed feature work?
The load bleed feature facilitates quick discharge of the load by connecting the BLEED pin to VOUT either directly or through a resistor.
