SEA05L

批量生产

具有极高效LED指示灯驱动器的高级恒定电压和恒定电流控制器

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概述
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
Partner products
Sales Briefcase

产品概述

描述

The device is a highly integrated solution for SMPS applications, with an LED pilot-lamp requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation. The IC allows very efficient LED pilot-lamp driving which helps to reduce the standby consumption of the SMPS. It integrates a voltage reference, two op-amps (with OR-ed open-drain outputs), a low-side current sensing circuit and an LED pilot-lamp driver pin implemented with an open-drain mosfet driven by square waveform with 12.5% duty cycle at 1 kHz that allows reducing LED consumption.
The voltage reference, along with one op-amp, is the core of the voltage control loop. The current sensing circuit and the other op-amp make up the current control loop.
The external components needed to complete the two control loops are:
- a resistor divider that senses the output of the power supply and fixes the voltage regulation setpoint at the specified value
- a sense resistor that feeds the current sensing circuit with a voltage proportional to the DC output current; this resistor determines the current regulation setpoint and must be adequately rated in terms of power dissipation
- the frequency compensation components (R-C networks) for both loops.
The device is ideal for space-critical applications.
  • 所有功能

    • Constant voltage and constant current control
    • Very efficient LED pilot-lamp driver
    • Wide operating VCCrange (3.5 V - 36 V)
    • Low quiescent consumption: 250 μA
    • Voltage reference: 2.5 V
    • Voltage control loop accuracy ± 0.5%
    • Current sense threshold: 50 mV
    • Current control loop accuracy ± 4%
    • Low external component count
    • Open-drain output stage
    • SOT23-6L package

特别推荐

EDA符号、封装和3D模型

STMicroelectronics - SEA05L

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Symbols

符号

Footprints

封装

3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
SEA05LTR
批量生产
SOT23-6L 工业 Ecopack2

SEA05LTR

Package:

SOT23-6L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Reference Voltage (V) (nom)
Budgetary Price (US$)*/Qty
更多信息
最小值
最大值
SEA05LTR Available at 2 distributors

经销商的可用性SEA05LTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 12 1 马上订购
MOUSER WORLDWIDE 396 1 马上订购

代理商库存报告日期: 2021-09-12

代理商名称

DIGIKEY

库存

12

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

396

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-09-12

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel SOT23-6L -40 150 2.5 0.293 / 1k
更多信息

单价(US$):

0.293

Country of Origin:

MALAYSIA

SEA05LTR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.293 / 1k

经销商的可用性SEA05LTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 12 1 马上订购
MOUSER WORLDWIDE 396 1 马上订购

代理商库存报告日期: 2021-09-12

代理商名称

DIGIKEY

库存

12

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

396

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-09-12

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SOT23-6L

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Reference Voltage (V) (nom)

2.5

Budgetary Price (US$)* / Qty

0.293 / 1k

Country of Origin

MALAYSIA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商