Datasheet > CS1680

CS1680

更新时间： 2024-09-24 01:25:47

品牌	Logo	应用领域
凌云 - CIRRUS		/
页数	文件大小	规格书
16页	644K
描述
Dimmable LED Driver IC for Low-voltage Lighting

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CS1680 数据手册

CS1680

Dimmable LED Driver IC

for Low-voltage Lighting

Features

Overview

The CS1680 is a cascade boost-buck dimmable LED

driver for the 12V halogen lamp-replacement market.

The CS1680 uses a Cirrus Logic proprietary intelligent

digital control that provides exceptional single-lamp and

multi-lamp transformer compatibility for non-dimmer sys-

tems and dimmer systems paired with electronic and

magnetic low-voltage transformers.

• Best-in-class Transformer Compatibility

-Magnetic Transformers

-Electronic Transformers

• Best-in-class Dimmer Compatibility

-Leading-edge (TRIAC) Dimmers

-Trailing-edge Dimmers

• High Efficiency

-Up to 80% for CS1680-00 Applications

-Up to 83% for CS1680-02 Applications

The CS1680 integrates a continuous conduction mode

(CCM) boost converter that provides transformer com-

patibility and dimmer compatibility. An adaptive digital

algorithm controls the boost stage and dimmer compati-

bility operation mode to enable flicker-free operation

down to 5% output current with leading-edge and trail-

ing-edge dimmers.

• Flicker-free Dimming

• 5% Minimum Dimming Level

• Cascade Boost-buck Topology with Constant-current

Output

-CS1680-00 Output Voltage 15V

-CS1680-02 Output Voltage 21V

• Fast Startup

Applications

• MR16 Lamps

• All 12VAC/VDC Low-voltage Lighting Applications

• Tight LED Current Regulation: Better than ±10%

• >0.9 Power Factor on Magnetic Transformers

• Soft Start

• Protections:

-Output Open/Short

-Boost Overvoltage

Ordering Information

-Overcurrent Detection

-External Overtemperature Using NTC

See page 15.

L_BST

V_rect

V_BST

LED +

D_BST

R_rect

R_BST

R_CLAMP

C_BST

D_BUCK

C_OUT

VAC

L_BUCK

BSTOUT

LED -

Q_CLAMP

CLAMP

Q_BST

BSTGD

CS1680

C_rect

BUCKZCD

BUCKGD

12VAC/VDC

VDD

Q_BUCK

GPIO

BUCKSENSE

eOTP

BSTSENSE

R_S

R_BUCK(Sense)

C_NTC

CTRL1

GND

CTRL2

R_BST(Sense)

NTC

R_CTRL1

R_CTRL2

Cirrus Logic, Inc.

http://www.cirrus.com

OCT’14

DS1055F1

12 3 4 5 6 7...16

中文翻译

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