TPS2377 IEEE 802.3af PoE 有源器件控制器
TPS2377 描述
These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af compliant powered device (PD). The TPS2375 family is a second generation PDC (PD Controller) featuring 100-V ratings and a true open-drain, power-good function.
In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.
The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.
|
TPS2375 |
TPS2375-1 |
TPS2376 |
TPS2376-H |
TPS2377 |
TPS2377-1 |
| PoE Standards Supported |
802.3at type1 |
802.3at type1 |
802.3at type1 |
802.3at type1 (high current) |
802.3at type1 |
802.3at type1 |
| PD Power Level |
13W |
13W |
13W |
25W |
13W |
13W |
| PoE Inrush Limit(Typ)(mA) |
Programmable |
Programmable |
Programmable |
Programmable |
Programmable |
Programmable |
| PoE Current Limit(Min)(mA) |
405 |
405 |
405 |
625 |
405 |
405 |
| UVLO |
802.3af |
802.3af |
Adjustable |
Adjustable |
Unified |
Unified |
| rDS(on) per FET(Typ)(mOhms) |
580 |
580 |
580 |
580 |
580 |
580 |
| Fault Response |
Latch |
Auto Retry |
Latch |
Auto Retry |
Latch |
Auto Retry |
| Error Amplifier |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
| Auxiliary/Local Power Support |
External Circuit |
External Circuit |
External Circuit |
External Circuit |
External Circuit |
External Circuit |
| Auxiliary Power Rails Supported |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
| Driven/Active Clamp (Second Gate Drive) |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
| Duty Cycle(%) |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
| Switching Frequency |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
8SOIC, 8TSSOP |
8TSSOP |
8SOIC, 8TSSOP |
8SO PowerPAD |
8SOIC, 8TSSOP |
8SOIC |
| Approx. Price (US$) |
1.00 | 1ku |
1.00 | 1ku |
1.00 | 1ku |
1.25 | 1ku |
1.00 | 1ku |
1.00 | 1ku |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
TPS2377 特性
- Fully Supports IEEE 802.3af Specification
- Integrated 0.58-Ω, 100-V, Low-Side Switch
- 15-kV System Level ESD Capable
- Supports Use of Low-Cost Silicon Rectifiers
- Programmable Inrush Current Control
- Fixed 450-mA Current Limit
- Fixed and Adjustable UVLO Options
- Open-Drain, Power-Good Reporting
- Overtemperature Protection
- Industrial Temperature Range: –40°C to 85°C
- 8-Pin SOIC and TSSOP Packages
- APPLICATIONS
- VoIP Phones
- WLAN Access Points
- Security Cameras
- Internet Appliances
- POS Terminals
TPS2377 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 |
| TPS2377D |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
2377 |
| TPS2377DG4 |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
2377 |
| TPS2377DR |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
2377 |
| TPS2377DRG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
2377 |
| TPS2377PW |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
2377 |
| TPS2377PWG4 |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
2377 |
| TPS2377PWR |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
2377 |
| TPS2377PWRG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
2377 |
TPS2377 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 |
| TPS2377D |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377D |
TPS2377D |
| TPS2377DG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377DG4 |
TPS2377DG4 |
| TPS2377DR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377DR |
TPS2377DR |
| TPS2377DRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377DRG4 |
TPS2377DRG4 |
| TPS2377PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377PW |
TPS2377PW |
| TPS2377PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377PWG4 |
TPS2377PWG4 |
| TPS2377PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377PWR |
TPS2377PWR |
| TPS2377PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2377PWRG4 |
TPS2377PWRG4 |
TPS2377 应用技术支持与电子电路设计开发资源下载
- TPS2377 数据资料 dataSheet 下载.PDF
- TI 德州仪器受电器件产品选型与价格 . 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)
- 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)
TPS2377 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS2377 IEEE802.3af POE 有源器件评估模块 |
TPS2377EVM |
Texas Instruments |
开发电路板/EVM |
TPS2377 工具与软件
| 说明 |
型号 |
公司 |
| 12V、1A 隔离 PoE PD 电源参考设计 |
PMP940 |
Texas Instruments |
| 隔离、低成本、非同步 PoE PD 电源参考设计 |
PMP717 |
Texas Instruments |
| 隔离、同步反向、3.3V @ 3A 或 5V @ 2A PoE PD 电源参考设计 |
PMP929 |
Texas Instruments |
| 非隔离 PoE PD 电源参考设计 |
PMP841 |
Texas Instruments |