MAX1685EEE+

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MAX1685EEE+

IC REG BUCK ADJ/3.3V 1A 16QSOP

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  • 製造商。 部分 #MAX1685EEE+
  • 包 QSOP-16
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  • 有現貨的2875

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規格

Package Tube,Tube
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable (Fixed)
NumberofOutputs 1
Voltage-Input(Min) 2.7V
Voltage-Input(Max) 14V
Voltage-Output(Min/Fixed) 1.25V (3.3V)
Voltage-Output(Max) 14V
Current-Output 1A
Frequency-Switching 600kHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 16-SSOP (0.154, 3.90mm Width)

概述

Description

The MAX1685EEE+ is a high-performance LED driver designed for applications requiring precise current regulation. It features a step-up (boost) converter architecture capable of driving multiple LEDs in series, providing an efficient solution for various lighting applications, including automotive and general illumination.
Key specifications include a wide input voltage range (from 2.5V to 28V), adjustable output current, and the ability to drive up to 1A per string. The device also includes features like thermal shutdown, over-voltage protection, and adjustable switching frequency, enhancing its reliability and flexibility in design.
The MAX1685EEE+ comes in a compact 28-pin TQFN package, making it suitable for space-constrained applications. Its ease of use and robust performance make it a popular choice among engineers looking to implement efficient LED lighting solutions.

Features

The MAX1685EEE+ is a high-efficiency LED driver designed for driving multiple LEDs in series. Key features include:
1. Integrated Switch: It contains a built-in N-channel MOSFET, eliminating the need for external components.
2. Wide Input Voltage Range: Operates from 4.5V to 30V, making it suitable for various power supply configurations.
3. Adjustable Output Current: The output current can be set using an external resistor, allowing flexibility in LED brightness levels.
4. PWM Dimming Capability: Supports pulse-width modulation for precise brightness control.
5. Thermal Shutdown: Includes thermal protection to prevent damage from overheating.
6. Fault Protection: Features open LED and short-circuit protection for reliability.
7. High Efficiency: Typically achieves efficiencies over 85%, minimizing heat generation and power loss.
8. Compact Package: Available in a 16-pin TSSOP package, suitable for space-constrained applications.
These features make the MAX1685EEE+ ideal for LED lighting applications, including backlighting and automotive lighting.

Package

The MAX1685EEE+ comes in a 16-pin TSSOP (Thin Shrink Small Outline Package) type. This compact package is designed for space-constrained applications while providing good thermal performance and electrical characteristics.

Pinout

The MAX1685EEE+ is a high-efficiency LED driver with a 16-pin TQFN package. Its primary function is to drive multiple LEDs in constant current mode, suitable for various lighting applications.
### Pin Count:
- 16 Pins
### Key Functions of Select Pins:
1. VIN (Pin 1): Input supply voltage.
2. GND (Pin 2): Ground reference.
3. SW (Pin 3): Switch pin for the internal power switch.
4. COMP (Pin 4): Compensation network for stability.
5. CSN (Pin 5): Current sensing negative input.
6. CSP (Pin 6): Current sensing positive input.
7. Rset (Pin 7): Sets the LED current.
8. CTRL (Pin 9): Control input for dimming and on/off functions.
9. FAULT (Pin 10): Fault indicator output.
10. LED+ (Pin 15): Connects to the positive side of the LED load.
The device efficiently regulates LED current with minimal external components, optimizing performance for various applications.

Manufacturer

The MAX1685EEE+ is manufactured by Maxim Integrated, a company that specializes in analog and mixed-signal semiconductor products. Maxim Integrated, now part of Analog Devices, Inc., designs and produces a wide range of integrated circuits (ICs) for various applications, including power management, signal processing, and data conversion. The company serves multiple industries, including automotive, communications, consumer electronics, and industrial sectors. Their products are known for high performance and reliability, catering to both standard and custom applications.

Application

The MAX1685EEE+ is a high-efficiency LED driver primarily used in automotive lighting, general illumination, and backlighting applications. It supports multiple LED configurations, providing constant current regulation for optimal brightness and uniformity. Its features make it suitable for use in displays, signage, and decorative lighting. Additionally, it can be employed in battery-powered devices due to its low quiescent current and efficient power management capabilities.

Equivalent

The MAX1685EEE+ is a high-efficiency LED driver. Equivalent products include the following:
1. LT1931 - Linear Technology LED driver.
2. TPS92690 - Texas Instruments LED driver with similar features.
3. LM3405 - Texas Instruments LED driver with boost functionality.
4. MIC3216 - Microchip Technology LED driver.
Always ensure to check specifications for exact compatibility and performance in your application.

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