MAX16841ASA+T Maxim Integrated Products, MAX16841ASA+T Datasheet

MAX16841ASA+T

Manufacturer Part Number

MAX16841ASA+T

Description

LED Drivers Wide Input Offline LED Driver with Dim

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX16841ASAT.pdf (18 pages)

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The MAX16841 is an LED driver for AC line (100V, 120V,

220V, and 230V AC) input lamps. It features proprietary

control of the input current that allows lamps to dim

smoothly from full to zero light intensity, while providing

active power factor correction (PFC). It is a very flexible

product that can be used in isolated (e.g., flyback) and

nonisolated (e.g., buck) configurations. The conventional

use of an optocoupler in isolated configurations can be

avoided in MAX16841-based designs.

The constant frequency-control technique of the

device allows maximization of the conversion efficien-

cy at both low and high AC line by operating at the

conduction mode that minimizes total conduction and

switching losses.

The device can be configured for universal input (90V to

264V AC) dimmable applications, allowing the design of an

LED lamp that can be operated and dimmed worldwide.

This device can be used without electrolytic capacitors,

thus maximizing the lamp lifetime. In this case, the LED

current is a rectified sinusoid with a frequency that is

twice the AC line frequency.

The device also features thermal shutdown, current limit,

open LED protection, and V

The MAX16841 is available in an 8-pin SO package and

operates over the -40NC to +125NC temperature range.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Retrofit LED Lamps with Triac Dimming

Universal Input LED Retrofit Lamps

Industrial and Commercial Lighting

Residential LED Lighting

Controller IC for Dimmable Offline LED Lamps

�� Maxim Integrated Products 1

General Description

undervoltage lockout.

Applications

S Smooth Dimming with Leading-Edge (Triac) and

S Active Power Factor Correction

S Nonisolated (e.g., Buck) and Isolated

S Universal 90V to 264V AC Input Range

S Constant Frequency-Control Scheme Maximizes

S Constant Power Control with No Need for

S Very-Low Quiescent Current

S Output Open and Short Protection

S Thermal Shutdown

S Available in an 8-Pin SO Package

Ordering Information

Typical Operating Circuits

For related parts and recommended products to use with this part,

refer to www.maxim-ic.com/MAX16841.related.

Trailing-Edge Dimmers

(e.g., Flyback) Topologies

Efficiency at High and Low AC Line Voltage

Optocouplers

E V A L U A T I O N K I T A V A I L A B L E

appears at end of data sheet.

appear at end of data sheet.

MAX16841

19-6028; Rev 0; 10/11

Features

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