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MAX1680ESA+

Name: MAX1680ESA+
Rating: 4.7 (12 reviews)

IC REG CHARGE PUMP INV 8SOIC

製造商
製造商。部分 #MAX1680ESA+
包 SO-8
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規格

Package	Tube,Tube
ProductStatus	Obsolete
Function	Ratiometric
OutputConfiguration	Positive or Negative
Topology	Charge Pump
OutputType	Fixed
NumberofOutputs	1
Voltage-Input(Min)	2V
Voltage-Input(Max)	5.5V
Voltage-Output(Min/Fixed)	-Vin, 2Vin
Current-Output	125mA
Frequency-Switching	125kHz, 250kHz
SynchronousRectifier	No
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概述

Description

The MAX1680ESA+ is a high-efficiency LED driver designed for driving multiple LEDs in various applications, including automotive lighting, displays, and general illumination. It operates as a step-down (buck) converter, offering a wide input voltage range (4.5V to 30V) and output current capability up to 1A, making it suitable for various LED configurations.
Key features include adjustable output current through an external resistor, high efficiency (typically over 90%), and built-in thermal protection to prevent overheating. The device supports PWM dimming, allowing for precise control of brightness levels. It also integrates various protections, such as over-voltage and under-voltage lockout.
The MAX1680ESA+ is housed in a 16-pin SOIC package, making it compact and easy to integrate into designs. Its versatility and efficiency make it a popular choice for lighting applications that require reliable and adjustable LED drive solutions.

Features

The MAX1680ESA+ is a high-efficiency LED driver designed for backlighting applications. Key features include:
1. Constant Current Control: Provides precise LED current regulation for consistent brightness.
2. Wide Input Voltage Range: Operates from 2.5V to 30V, accommodating various power supply configurations.
3. Boost Converter: Capable of stepping up voltage to drive multiple series LEDs.
4. High Efficiency: Achieves efficiencies up to 90%, minimizing heat generation and extending battery life.
5. Adjustable Output Current: Allows for customization of LED brightness through an external resistor.
6. Integrated Switch: Simplifies design by incorporating an internal power switch, reducing component count.
7. Dimming Control: Supports PWM dimming for enhanced control over LED brightness.
8. Thermal Shutdown: Protects the device from overheating, ensuring reliable operation.
This IC is ideal for portable devices, displays, and other applications requiring efficient LED illumination.

Package

The MAX1680ESA+ is packaged in a 16-pin dual in-line package (DIP) with a surface-mount design. This package type allows for easy integration into various electronic systems and facilitates efficient thermal management and electrical performance.

Pinout

The MAX1680ESA+ is an LED driver IC with a pin count of 8. It is designed for driving multiple LEDs with constant current. The pin functions are as follows:
1. Pin 1 (LED1): Output for the first LED.
2. Pin 2 (LED2): Output for the second LED.
3. Pin 3 (LED3): Output for the third LED.
4. Pin 4 (LED4): Output for the fourth LED.
5. Pin 5 (GND): Ground connection.
6. Pin 6 (CSN): Chip select input for enabling/disabling the device.
7. Pin 7 (VDD): Supply voltage input.
8. Pin 8 (PWM): Pulse width modulation control input for adjusting brightness.
The MAX1680ESA+ supports adjustable current and features integrated fault detection for LED applications.

Manufacturer

The MAX1680ESA+ is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. Maxim Integrated specializes in designing and producing analog and mixed-signal integrated circuits (ICs). The company focuses on innovative solutions for a variety of applications, including automotive, industrial, communications, and consumer electronics. Their product portfolio includes power management, signal processing, and data conversion ICs, among others. Maxim Integrated is known for its commitment to high-performance and energy-efficient solutions, catering to the needs of engineers and designers in the semiconductor industry.

Application

The MAX1680ESA+ is primarily used in automotive and industrial applications for driving high-brightness LEDs, such as in automotive lighting, displays, and indicator lights. It can also be employed in backlighting for LCDs, general illumination, and signage applications. Its features include adjustable output current and PWM dimming capabilities, making it versatile for various lighting solutions.

Equivalent

The MAX1680ESA+ chip can be replaced by equivalent products such as the MAX1681, MAX1682, and the MAX1683. These devices also provide similar functionality in terms of LED drivers and are designed for applications requiring high efficiency and low power consumption. Always check the specific datasheets for pin compatibility and features.