TPS2481 正电压智能保护器件/热插拔控制器和 I2C 电流监视器
TPS2481 描述
The TPS2480/81 are designed to minimize inrush into applications and protect both the load and the FET from over-current or short circuit events. They control an external N-channel MOSFET switch and provide accurate voltage, current, and power monitoring using a configurable 12 bit A/D converter via an I2C interface. The independently adjustable power limit and current limit ensure that the external MOSFET operates within the FET’s Safe Operating Area (SOA).
The flexible design includes a Power Good output which can be used for sequencing as well as load fault indication. An external timer capacitor can set the fault time to help immunize the system from nuisance shutdowns during brief transient events.
|
TPS2480 |
TPS2481 |
TPS2490 |
TPS2491 |
TPS2492 |
TPS2493 |
| No. of Outputs |
1 |
1 |
1 |
1 |
1 |
1 |
| Vin(Min)(V) |
9 |
9 |
9 |
9 |
9 |
9 |
| Vin(Max)(V) |
20 |
20 |
80 |
80 |
80 |
80 |
| Pin/Package |
20TSSOP |
20TSSOP |
10MSOP |
10MSOP |
14TSSOP |
14TSSOP |
| Operation |
Latch Off |
Retry |
Latch Off |
Auto-Retry |
Latch Off |
Auto-Retry |
| Output |
PG |
PG |
PG |
PG |
PG, FLT |
PG, FLT |
| Current Monitoring |
Digital |
Digital |
None |
None |
Analog |
Analog |
| Current Limiting during Fault |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Digital Interface |
I2C |
I2C |
None |
None |
None |
None |
| Approx. Price (US$) |
3.00 | 1ku |
3.00 | 1ku |
1.40 | 1ku |
1.40 | 1ku |
1.45 | 1ku |
1.45 | 1ku |
TPS2481 特性
- Programmable FET Power Limit
- External N-Channel FET Gate Drive
- Programmable Fault Timer
- Open Drain Power Good Output
- I2C monitoring of Current, Voltage and Power
- High Accuracy Current Monitoring
(1% over temperature)
- Dynamic Calibration
- 9-V to 20-V Input Range
- APPLICATIONS
- Servers
- Hard Drives
- Storage Networks
- Base Stations
TPS2481 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS2481PW |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
TSSOP (PW) | 20 |
90 | TUBE |
TPS2481 |
| TPS2481PWR |
ACTIVE |
-40 to 85 |
1.45 | 1ku |
TSSOP (PW) | 20 |
2000 | LARGE T&R |
TPS2481 |
TPS2481 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 |
| TPS2481PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2481PW |
TPS2481PW |
| TPS2481PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2481PWR |
TPS2481PWR |
TPS2481 应用技术支持与电子电路设计开发资源下载
- TPS2481 数据资料 dataSheet 下载.PDF
- TI 德州仪器热插拔控制器（外部 FET）产品选型与价格 . xls
- PowerPAD™ 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)
- PowerPAD™ 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)
TPS2481 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 用于 TPS2481 正电压热插拔控制器和 I2C 电流监控器的评估模块 |
TPS2481EVM-001 |
Texas Instruments |
开发电路板/EVM |
| 用于 TPS2481 正电压热插拔控制器和 I2C 电流监控器的评估模块 |
TPS2481EVM-003 |
Texas Instruments |
开发电路板/EVM |
