MXHV9910B

Product Overview

Category: Integrated Circuit
Use: LED Driver
Characteristics: High Voltage, High Efficiency
Package: SOP-8
Essence: Power Management IC
Packaging/Quantity: Tape & Reel, 2500 pieces per reel

Specifications

Input Voltage Range: 4.5V to 40V
Output Voltage Range: Up to 60V
Maximum Output Current: 1A
Switching Frequency: 1MHz
Dimming Control: Analog/PWM
Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MXHV9910B is an SOP-8 package with the following pin configuration:

VIN (Input Voltage)
GND (Ground)
FB (Feedback)
EN (Enable)
DIM (Dimming Control)
SW (Switch Node)
LX (Inductor Connection)
VOUT (Output Voltage)

Functional Features

Wide input voltage range allows for versatile applications.
High efficiency and low power dissipation.
Supports both analog and PWM dimming control methods.
Integrated protection features such as overvoltage and overcurrent protection.
Compact SOP-8 package enables space-saving designs.

Advantages

High voltage capability enables driving multiple LEDs in series.
Efficient power management reduces energy consumption.
Flexible dimming control options provide versatility in lighting applications.
Integrated protection features enhance system reliability.
Small package size facilitates compact circuit designs.

Disadvantages

Limited maximum output current may restrict certain high-power applications.
Requires external components for proper operation.
Higher cost compared to non-integrated LED driver solutions.

Working Principles

The MXHV9910B is a high-voltage LED driver IC that utilizes a buck converter topology. It converts the input voltage to a lower output voltage suitable for driving LEDs. The device operates by switching the internal power MOSFET on and off at a high frequency, regulating the output voltage based on the feedback signal. The dimming control input allows for adjusting the LED brightness using either analog or PWM signals.

Application Field Plans

The MXHV9910B is widely used in various lighting applications, including:

Automotive lighting systems
Industrial lighting fixtures
Architectural lighting
Signage and display lighting
Backlighting for LCD panels
General illumination in residential and commercial spaces

Alternative Models

MXHV9910A: Similar specifications but with different pin configuration (DIP-8 package)
MXHV9912B: Higher maximum output current (1.5A) with similar features
MXHV9915B: Lower maximum output current (500mA) with similar features

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von MXHV9910B in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of MXHV9910B in technical solutions:

Q: What is MXHV9910B? A: MXHV9910B is a high-voltage, low-noise current sense amplifier designed for precision current measurement in various applications.
Q: What is the operating voltage range of MXHV9910B? A: MXHV9910B operates within a wide voltage range of 4V to 80V, making it suitable for both low and high voltage applications.
Q: Can MXHV9910B be used in automotive applications? A: Yes, MXHV9910B is automotive qualified and can be used in automotive applications that require high-voltage current sensing.
Q: What is the typical gain of MXHV9910B? A: The typical gain of MXHV9910B is 20V/V, which can be adjusted using external resistors to suit specific requirements.
Q: Is MXHV9910B capable of measuring bidirectional currents? A: Yes, MXHV9910B supports bidirectional current sensing, allowing measurement of both positive and negative currents.
Q: Does MXHV9910B have built-in protection features? A: Yes, MXHV9910B includes built-in overvoltage and reverse polarity protection, ensuring safe operation in various conditions.
Q: Can MXHV9910B operate in high-temperature environments? A: MXHV9910B has a wide operating temperature range of -40°C to +125°C, making it suitable for high-temperature applications.
Q: What is the output voltage swing of MXHV9910B? A: The output voltage swing of MXHV9910B is rail-to-rail, allowing for accurate measurement of current across the entire input voltage range.
Q: Does MXHV9910B require an external power supply? A: Yes, MXHV9910B requires an external power supply within the specified voltage range to operate.
Q: Can MXHV9910B be used in battery monitoring applications? A: Yes, MXHV9910B is commonly used in battery monitoring applications to accurately measure the current flowing in and out of the battery.

Please note that these answers are general and may vary depending on specific application requirements and circuit configurations.