LM5114BMF/S7003110

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High voltage, high-side and low-side gate driver - Designed for driving both the high-side and low-side N-channel MOSFETs in a synchronous buck or a half-bridge configuration - Suitable for applications requiring high efficiency and fast switching speeds

Package: BMF Package (8-pin SOIC)

Essence: The LM5114BMF/S7003110 is an integrated circuit that provides high voltage, high-side and low-side gate driver functionality. It is commonly used in power management applications to drive both the high-side and low-side N-channel MOSFETs in synchronous buck or half-bridge configurations.

Packaging/Quantity: The LM5114BMF/S7003110 is available in an 8-pin Small Outline Integrated Circuit (SOIC) package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Voltage Range: 0V to 12V
• Maximum Supply Current: 1.2A
• Operating Temperature Range: -40°C to 125°C
• Rise/Fall Time: 10ns (typical)
• Propagation Delay: 30ns (typical)

Pin Configuration

The LM5114BMF/S7003110 has the following pin configuration:

1. VDD: Positive supply voltage input
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. GND: Ground reference
5. LGND: Logic ground reference
6. LIN: Logic input
7. SD: Shutdown input
8. VB: Bootstrap supply voltage input

Functional Features

• High voltage capability: The LM5114BMF/S7003110 can handle input voltages ranging from 4.5V to 75V, making it suitable for a wide range of applications.
• High-side and low-side gate driver: It provides independent high-side and low-side gate drivers, allowing efficient control of N-channel MOSFETs in synchronous buck or half-bridge configurations.
• Fast switching speeds: With rise/fall times as low as 10ns and propagation delay of 30ns, the LM5114BMF/S7003110 enables fast and precise switching.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Independent high-side and low-side gate drivers - Fast switching speeds - Suitable for high-efficiency applications

Disadvantages: - Limited output voltage range (up to 12V) - Requires external bootstrap supply voltage

Working Principles

The LM5114BMF/S7003110 operates by receiving logic inputs and generating corresponding gate drive signals for the high-side and low-side N-channel MOSFETs. It utilizes a bootstrap capacitor to generate a voltage higher than the input voltage for driving the high-side MOSFET. This allows efficient switching of the MOSFETs, resulting in high efficiency and fast switching speeds.

Detailed Application Field Plans

The LM5114BMF/S7003110 is commonly used in various power management applications, including but not limited to: - DC-DC converters - Motor drives - LED lighting systems - Solar inverters - Battery charging systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM5114BMF/S7003110 include: - LM5114BMT/NOPB - IRS2117S - FAN7382MX

These alternatives may have slightly different specifications or package options, so it is important to review their datasheets for specific details.

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