Datasheet > GRM21BR71E225KA73L

GRM21BR71E225KA73L

更新时间： 2024-11-28 12:53:03

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		电容器 PC
页数	文件大小	规格书
40页	2652K
描述
3 A monolithic step-down current source with synchronous rectification

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LED2000

3 A monolithic step-down current source with synchronous

rectification

Datasheet - production data

Applications

 High brightness LED driving

 Halogen bulb replacement

 General lighting

 Signage

SO8

VFQFPN8 4x4

Description

The LED2000 is an 850 kHz fixed switching

frequency monolithic step-down DC-DC converter

designed to operate as precise constant current

source with an adjustable current capability up to

3 A DC. The embedded PWM dimming circuitry

features LED brightness control. The regulated

output current is set connecting a sensing resistor

to the feedback pin. The embedded synchronous

Features

 3.0 V to 18 V operating input voltage range

 850 kHz fixed switching frequency

 100 mV typ. current sense voltage drop

 PWM dimming



7% output current accuracy

rectification and the 100 mV typical R

SENSE

 Synchronous rectification

voltage drop enhance the efficiency performance.

The size of the overall application is minimized

thanks to the high switching frequency and

ceramic output capacitor compatibility. The device

is fully protected against thermal overheating,

overcurrent and output short-circuit. The

 95 mHS / 69 m LS typical R

 Peak current mode architecture

DS(on)

 Embedded compensation network

 Internal current limiting

LED2000 is available in VFQFPN 4 mm x 4 mm

8-lead, and standard SO8 package.

 Ceramic output capacitor compliant

 Thermal shutdown

Figure 1. Typical application circuit

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June 2013

DocID023432 Rev 4

1/40

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...40

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