Overview
The NCP45524IMNTWG-L, part of the NCP4552x series from onsemi, is a controlled load switch designed for efficient power domain switching. This device integrates control and driver functionality with a high-performance, low on-resistance N-channel MOSFET in a single package. It is ideal for power management and hot-swap applications, particularly in scenarios requiring low power consumption and a small footprint.
Key Specifications
| Parameter | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage | VCC | 3 | 5.5 | V | |
| Input Voltage | VIN | 0.5 | 13.5 | V | |
| Ambient Temperature | TA | -40 | 85 | °C | |
| Junction Temperature | TJ | -40 | 125 | °C | |
| MOSFET On-Resistance (VCC = 3.3 V, VIN = 1.8 V) | RON | 18.0 | 24.0 | 25.0 | mΩ |
| Maximum DC Current (IMAX_DC) | 6 | A | |||
| EN Input Leakage Current (VEN = 0 V) | IIL | 90 | 500 | nA | |
| EN Pull Down Resistance | RPD | 76 | 100 | 124 | kΩ |
| Output Slew Rate (VCC = 3.3 V, VIN = 1.8 V) | SR | 11.9 | kV/s | ||
| Output Turn-on Delay (VCC = 3.3 V, VIN = 1.8 V) | TON | 220 | μs |
Key Features
- Advanced Controller with Charge Pump: Enhances the device's control and driver capabilities.
- Integrated N-Channel MOSFET with Low RON: Provides high performance and low on-resistance.
- Input Voltage Range 0.5 V to 13.5 V: Flexible input voltage range for various applications.
- Soft-Start via Controlled Slew Rate: Reduces inrush current and prevents thermal lockout.
- Adjustable Slew Rate Control (NCP45525): Allows for customization of the slew rate.
- Power Good Signal (NCP45524): Indicates when the gate of 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 NCP45524IMNTWG-L?
The input voltage range is from 0.5 V to 13.5 V.
- What is the typical on-resistance of the MOSFET in the NCP45524IMNTWG-L?
The typical on-resistance (RON) is around 24.0 mΩ when VCC = 3.3 V and VIN = 1.8 V.
- Does the NCP45524IMNTWG-L have a power good signal?
Yes, the NCP45524 has a power good (PG) signal that indicates when the gate of the MOSFET is fully charged.
- What is the purpose of the soft-start feature in the NCP45524IMNTWG-L?
The soft-start feature, via controlled slew rate, reduces inrush current and prevents thermal lockout.
- What is the maximum DC current (IMAX_DC) the load switch can handle?
The maximum DC current (IMAX_DC) is 6 A.
- How does the load bleed function work in the NCP45524IMNTWG-L?
The load bleed connection facilitates quick discharge of the load by tying it to VOUT either directly or through a resistor ≤ 100 MΩ.
- What are the typical applications for the NCP45524IMNTWG-L?
Typical applications include portable electronics, notebook and tablet computers, telecom and networking equipment, medical devices, industrial equipment, set-top boxes, servers, gateways, and hot swap devices.
- Is the NCP45524IMNTWG-L Pb-free?
Yes, the NCP45524IMNTWG-L is a Pb-free device.
- What is the ambient temperature range for the NCP45524IMNTWG-L?
The ambient temperature range is from -40°C to 85°C.
- How does the EN input work for the NCP45524IMNTWG-L?
The EN input is an active-low digital input for the NCP45524-L, with an internal pull-up resistor to VCC.
