ICE3BR4765JXKLA1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Standby Power, Overload Protection
• Package: TO-220-6
• Essence: PWM Controller for Switched Mode Power Supplies
• Packaging/Quantity: Tray, 100 pieces per tray

Specifications

• Input Voltage Range: 8V to 21V
• Output Voltage Range: 0.8V to 16V
• Switching Frequency: 65kHz to 115kHz
• Operating Temperature Range: -40°C to +150°C
• Maximum Duty Cycle: 75%
• Protection Features: Overload Protection, Overvoltage Protection, Overtemperature Protection

Detailed Pin Configuration

The ICE3BR4765JXKLA1 has a total of 6 pins:

1. VCC - Power supply input pin.
2. GND - Ground reference pin.
3. FB - Feedback pin for voltage regulation.
4. CS - Current sense pin for current regulation.
5. DRV - Gate driver output pin for driving the power MOSFET.
6. SENSE - Sense pin for overcurrent protection.

Functional Features

• Pulse Width Modulation (PWM): Provides precise control over the output voltage by adjusting the duty cycle of the switching signal.
• Frequency Hopping: Reduces electromagnetic interference (EMI) by automatically changing the switching frequency within a predefined range.
• Overload Protection: Detects and protects against excessive load currents, preventing damage to the power supply and connected devices.
• Soft Start: Gradually increases the output voltage during startup to prevent inrush current and improve system reliability.
• Auto Restart: Automatically restarts the power supply after a fault condition is resolved, ensuring continuous operation.

Advantages and Disadvantages

Advantages: - High efficiency, leading to reduced power consumption and heat dissipation. - Low standby power, enabling energy-saving operation during idle periods. - Comprehensive protection features enhance system reliability and prevent damage. - Frequency hopping reduces EMI, ensuring compliance with electromagnetic compatibility (EMC) standards.

Disadvantages: - Limited input voltage range may restrict certain applications. - Maximum duty cycle of 75% may limit the achievable output voltage in some scenarios. - Requires external components for complete power supply implementation.

Working Principles

The ICE3BR4765JXKLA1 is a pulse width modulation (PWM) controller used in switched mode power supplies (SMPS). It regulates the output voltage by adjusting the duty cycle of the switching signal. The feedback pin (FB) compares the output voltage with a reference voltage, and the controller adjusts the duty cycle accordingly to maintain the desired output voltage.

During operation, the current sense pin (CS) monitors the load current, providing overcurrent protection. The gate driver output pin (DRV) drives the power MOSFET, controlling the switching of the power supply. The sense pin (SENSE) detects excessive current and triggers the overload protection mechanism.

Detailed Application Field Plans

The ICE3BR4765JXKLA1 is commonly used in various power management applications, including:

1. Switched Mode Power Supplies: Used in desktop computers, televisions, and other electronic devices to efficiently convert AC or DC input voltage to regulated DC output voltage.
2. LED Lighting: Enables efficient power conversion for LED lighting systems, ensuring stable and reliable illumination.
3. Industrial Power Supplies: Provides high-efficiency power conversion for industrial equipment, such as motor drives, robotics, and automation systems.
4. Telecommunications: Used in power supplies for telecommunications equipment, ensuring reliable operation and energy efficiency.

Detailed and Complete Alternative Models

1. ICE3BR0665JF - Similar PWM controller with lower input voltage range (8V to 18V).
2. ICE3BR1765JZ - PWM controller with higher maximum duty cycle (85%) and extended temperature range (-40°C to +175°C).
3. ICE3BR2565JF - PWM controller with wider input voltage range (8V to 25V) and adjustable switching frequency.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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