产品概述
描述
The STEF48H28 is an advanced 30 A integrated electronic fuse for the 9 - 80 V DC power lines.
Connected in series to the main power rail, it provides protections from inrush, under/overvoltage, and overcurrent conditions. When an overload condition occurs, the device reacts with a (I x t) approach with adaptive time to shut down. The overcurrent protection curve can be customized to accommodate for pulsed overloads, typical of CPUs/GPUs. If the overload persists, the device disconnects the load from the bus.
A precise current monitor signal provides continuous information about the load current to the system controller IC. Similarly, a precise temperature sensor generates a monitor signal that permits the system controller to keep the device's power dissipation under control.
Adjustable insertion delay and soft-start time help control the in-rush current during startup operations.
The device also embeds user-adjustable undervoltage/overvoltage lockout protection, power good, self-diagnostic, and thermal protection.
Telemetry and status information is available both in analog form and on the digital PMBUS® interface.
Multiple STEF48H28 can be connected in parallel to support high-power systems, such as AI servers and supercomputers.
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所有功能
- 30 A continuous current
- Input voltage range from 9 to 80 V
- Absolute maximum rating 95 V
- SMBUS™ interface
- PMBUS®™ V 1.3.1 commands compliant
- Adjustable UVLO and OVLO
- Integrated 1.7 mΩ power MOSFET
- Overcurrent protection with adjustable threshold and timeout
- Fast, adjustable short-circuit protection
- Thermal protection
- Power good, fault, and reset functions
- Programmable soft-start and turn-on delay time
- Precise current monitor signal
- Precise temperature monitor
- Digital voltage, current, power, energy, and temperature telemetry
- Parallel operation
- Integrated MOSFET diagnostic features
- Integrated black-box function
- Fault latch or auto-retry configuration
- -40 °C < TJ < 125 °C operating temperature
- QFN42L (7x7 mm) package - IPC2221B 100 V spacing compatible
特别推荐
EDA符号、封装和3D模型
意法半导体 - STEF48H28
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 包 | 等级规格 | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | 材料声明** |
|---|---|---|---|---|---|---|---|
| STEF48H28 | 预览 | PWFQFN 7X7X1.2 48L PITCH 0.5 | 工业 | Ecopack2 | - | - | |
| STEF48H28SL | 预览 | PWFQFN 7X7X1.2 48L PITCH 0.5 | 工业 | Ecopack2 | - | - | |
STEF48H28
Package:
PWFQFN 7X7X1.2 48L PITCH 0.5Material Declaration**:
STEF48H28SL
Package:
PWFQFN 7X7X1.2 48L PITCH 0.5Material Declaration**:
(**) 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 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEF48H28SL | | | distributors 无法联系到经销商，请联系我们的销售办事处 | ||||||||||
| STEF48H28 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
STEF48H28SL 预览
STEF48H28 预览