TPS2074 用于总线/自供电 USB 集线器的电源控制器，具有 3.3V LDO、8 个电源开关以及工作态高电平 BP 模式指示信号
TPS2074 描述
The TPS2074 and TPS2075 provide a complete USB hub power solution by incorporating three major functions: current-limited power switches for four ports, a 3.3-V 100-mA regulator, and a DP0 line control to signal attach/detach of the hub.
These devices are designed to meet bus-powered and self-powered hub requirements. These devices are also designed for hybrid hub implementations and allow for automatic switching from self-powered mode to bus-powered mode if loss of self-power is experienced. This feature can be disabled by applying a logic high to the BP_DIS input
Each port has a current-limited 100-m N-channel MOSFET high-side power switch for 100-mA bus-powered operation. All the N-channel MOSFETs are designed without parasitic diodes, preventing current backflow into the inputs
|
TPS2074 |
| Number of FETs |
8 |
| Vin(Min)(V) |
4.5 |
| Vin(Max)(V) |
5.5 |
| Switch Enable |
L |
| rDS(on) per FET, Bus Power(Typ)(mOhms) |
500 |
| Application |
USB 4-port hub |
| Switch Current Limit, Bus Power(Min)(A) |
0.12 |
| LDO Output Range(V) |
3.3 |
| LDO Output Current(mA) |
100 |
| Ports(Max) |
4 |
| Pin/Package |
24SSOP |
TPS2074 特性
- Complete USB Hub Power Solution
- Meets USB Specifications 1.1 and 2.0
- Independent Thermal and Short-Circuit Protection
- 3.3-V Regulator for USB Hub Controller
- Overcurrent Logic Outputs
- 4.5-V to 5.5-V Operating Range
- CMOS- and TTL-Compatible Enable Inputs
- 185 uA Bus-Power Supply Current
- Available in 24-Pin SSOP Package
- -40°C to 85°C Ambient Temperature Range
TPS2074 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） | Quantity |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS2074DB |
ACTIVE |
-40 to 85 |
3.85 | 1ku |
SSOP (DB) | 24 |
60 | TUBE |
TPS2074 |
| TPS2074DBG4 |
ACTIVE |
-40 to 85 |
3.85 | 1ku |
SSOP (DB) | 24 |
60 | TUBE |
TPS2074 |
| TPS2074DBR |
ACTIVE |
-40 to 85 |
3.20 | 1ku |
SSOP (DB) | 24 |
2000 | LARGE T&R |
TPS2074 |
| TPS2074DBRG4 |
ACTIVE |
-40 to 85 |
3.20 | 1ku |
SSOP (DB) | 24 |
2000 | LARGE T&R |
TPS2074 |
TPS2074 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS2074DB |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2074DB |
TPS2074DB |
| TPS2074DBG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2074DBG4 |
TPS2074DBG4 |
| TPS2074DBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2074DBR |
TPS2074DBR |
| TPS2074DBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2074DBRG4 |
TPS2074DBRG4 |
TPS2074 应用技术支持与电子电路设计开发资源下载
- TPS2074 数据资料 dataSheet 下载.PDF
- TI 德州仪器USB 功率控制器产品选型与价格 . xls
- PowerPADTM Thermally Enhanced Package
(PDF 1040 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs
(PDF 356 KB)
- DN-103 Controlling a -5V Rail Using TPS2074 +3V to +8V Hot-Swap Power Manager
(PDF 37 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS2074 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS2074 估模块 |
TPS2074EVM |
Texas Instruments |
开发电路板/EVM |