概述
样片和购买
解决方案
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CAD Resources
工具与软件
质量与可靠性
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  • The STEF512GR is an integrated dual electronic fuse, designed to protect circuitry on its output from overcurrent and overvoltage events, in those applications requiring hot swap operation and in-rush current control.

    The device embeds two independent electronic fuses, one for the 5 V rails and one for the 12 V rails. Thanks to the very low ON-resistance of the integrated Power FETs, the voltage drop from the main supply to the load is very low during normal operations.
    The start-up time can be adjusted by the user for each e-fuse, via two small soft-start capacitors, connected to the relevant pins.
    In this manner, the inrush current at startup can be kept under control.
    The maximum load current is precisely limited, by utilizing a sense FET topology, to factory-defined values.
    The device also provides a precise overvoltage clamp for each channel, preventing the load from being damaged by power supply failures, and undervoltage lockout (UVLO), assuring that the input voltage is above the minimum operating threshold, before the power device is turned on.
    When an overload condition occurs, the STEF512GR limits the output current to the predefined safe value. If the anomalous overload condition persists, the device goes into thermal shutdown, the internal switch is opened and the load disconnected from the power supply.

    主要特性

    • 5 V and 12 V channels into one chip
    • 25 V absolute maximum input voltage
    • Precise output over voltage clamp
    • Fixed current limit: 3 A on 5 V, 4 A on 12 V
    • Latched-off thermal protection
    • Input undervoltage lockout
    • Adjustable output voltage slew-rate for each channel
    • Integrated 40 mΩ Power FETs
    • SAS disable pin
    • TSOT23-8L package

特别推荐

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STEF512GR

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

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**
STEF512GR
批量生产
TSOT 8L 工业 Ecopack2

STEF512GR

Package:

TSOT 8L

Material Declaration**:

Marketing Status

批量生产

Package

TSOT 8L

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) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
STEF512GR Available at 1 distributors

经销商的可用性STEF512GR

代理商名称
地区 库存 最小订购量 第三方链接
RS COMPONENTS EUROPE 198 1 马上订购

代理商库存报告日期: 2020-11-30

代理商名称

RS COMPONENTS

库存

198

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-30

批量生产
EAR99 NEC Tape And Reel TSOT 8L -40 125 MALAYSIA 0.75 / 1k

STEF512GR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.75 / 1k

经销商的可用性STEF512GR

代理商名称
地区 库存 最小订购量 第三方链接
RS COMPONENTS EUROPE 198 1 马上订购

代理商库存报告日期: 2020-11-30

代理商名称

RS COMPONENTS

库存

198

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-30

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

TSOT 8L

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

0.75 / 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