NCP3066

更新时间： 2024-11-05 05:52:03

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器开关
页数	文件大小	规格书
20页	1140K
描述
Up to 1.5 A Constant Current Switching Regulator for LEDs with ON/OFF Function

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中文翻译

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NCP3066 数据手册

NCP3066, NCV3066

Up to 1.5 A Constant

Current Switching

Regulator for LEDs with

ON/OFF Function

http://onsemi.com

MARKING

The NCP3066 is a monolithic switching regulator designed to

deliver constant current for powering high brightness LEDs. The

device has a very low feedback voltage of 235 mV (nominal) which is

used to regulate the average current of the LED string. In addition, the

NCP3066 has a wide input voltage up to 40 V to allow it to operate

from a 12 Vac or a 12−36 Vdc supply, commonly used for lighting

applications as well as unregulated supplies such as rechargeable

batteries. The NCP3066 switching regulator can be configured in

Step−Down (Buck), Step−Up (Boost) and Voltage−Inverting

topologies with a minimum number of external components. The

ON/OFF pin provides PWM dimming capability or a low power

shutdown mode.

DIAGRAMS

3066

ALYWG

SOIC−8

D SUFFIX

CASE 751

NCP3066

AWL

Features

YYWWG

• Integrated 1.5 A Switch

• Input Voltage Range from 3.0 V to 40 V

• Logic Level Shutdown Capability

• Low Feedback Voltage of 235 mV

• Cycle−by−Cycle Current Limit

• No Control Loop Compensation Required

• Frequency of Operation Adjustable up to 250 kHz

• Analog and Digital PWM Dimming Capability

• Internal Thermal Shutdown with Hysteresis

3066

ALYWG

PDIP−8

P, P1 SUFFIX

CASE 626

• NCV Prefix for Automotive and Other Applications Requiring Site

and Control Changes

• These are Pb−Free Devices

Applications

• Automotive and Marine Lighting

• Constant Current Source, High Brightness LED Driver

• Low Voltage and Landscape Lighting

DFN8

MN SUFFIX

CASE 488AF

LED+

ON/OFF

LED

sense

SWC

SWE

ON/OFF

Ipk

OUT

NCP3066

L, WL

Y, YY

W, WW

G or G

Specific Device Code

Assembly Location

Wafer Lot

Year

Work Week

NCP3066

COMP

GND

LED−

Pb−Free Package

GND

(Note: Microdot may be in either location)

Figure 1. Typical Buck Application Circuit

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 17 of this data sheet.

Semiconductor Components Industries, LLC, 2009

Publication Order Number:

January, 2009 − Rev. 3

NCP3066/D

12 3 4 5 6 7...20

中文翻译

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