TPS2458 用于 AdvancedMC™ 的具有负载电流监控功能的 12V/3.3V 热插拔 ORing 控制器
TPS2458 描述
The TPS2458 is a dual, 12 V, channel protection (hotswap) and blocking (ORing) controller that provides inrush control, current limiting, overload protection, and reverse current blocking. The current sense topology provides both accurate current limits and independent setting of current limit and fast trip thresholds.
The ORing control uses an external MOSFET to block reverse current when an input is shorted. Systems with closely matched supply voltages and feed networks can supply current from both supplies simultaneously.
The MONx output provides an accurate analog indication of load current.
The protection circuits may be used without blocking, and the blocking may be used without protection
|
TPS2358 |
TPS2359 |
TPS2456 |
TPS2458 |
TPS2459 |
| Gate Control |
Linear |
Linear |
Linear |
Linear |
Linear |
| No. of Outputs |
4 |
4 |
2 |
2 |
2 |
| Vin(Min)(V) |
8.5 |
8.5 |
8.5 |
8.5 |
8.5 |
| Vin(Max)(V) |
15 |
15 |
15 |
15 |
15 |
| Pin/Package |
48VQFN |
36VQFN |
36VQFN |
32QFN |
32QFN |
| Operation |
Latch Off |
Configurable Latch-off or Retry |
Latch Off |
Latch Off |
Configurable Latch-off or Retry |
| Enable |
Active-Low |
Via I2C |
Active High |
Active Low |
Via I2C |
| Output |
PG/Fault via Dedicated Pins |
PG/Fault via I2C |
PG/Fault via Dedicated Pins |
PG/Fault via Dedicated Pins |
PG/Fault via I2C |
| Circuit Breaker Function |
Interdependent |
Configurable |
Independent |
Interdependent |
Configurable |
| FET Status Monitoring(Typ) |
None |
Via I2C |
None |
None |
Via I2C |
| Current Monitoring |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
| # of AdvancedMCs controlled |
2 |
2 |
2 |
1 |
1 |
| # of 12V (Payload) Rails Controlled |
2 |
2 |
2 |
1 |
1 |
| # of 3.3V (Management) Rails Controlled |
2 |
2 |
0 |
1 |
1 |
| Early Warning Indicator |
None |
Via I2C |
None |
None |
Via I2C |
| Payload Power (12V nominal) FET type |
External |
External |
External |
External |
External |
| Payload Programmable Current Limit |
Resistor Set |
Resistor Set / I2C |
Resistor Set |
Resistor Set |
Resistor Set / I2C |
| Optional Oring FET Control |
Yes |
Yes |
Yes |
Yes (12V rail) |
Yes |
| Management Power FET type |
Internal |
Internal |
N/A |
Internal |
Internal |
| Current Limiting during Fault |
Yes |
Yes |
Yes |
Yes |
Yes |
| 3.3V Power Fault Current Limit Range(A) |
0.170 to 0.225 |
0.170 to 0.225 |
N/A |
0.170 to 0.225 |
0.170 to 0.225 |
| Fast Trip response (nS) |
350 |
350 |
350 |
350 |
350 |
| Management Power Internal FET R(ds)on(Typ) |
290 mOhm |
290 mOhm |
N/A |
290 mOhm |
290 mOhm |
| Digital Interface |
None |
I2C |
None |
None |
I2C |
| Approx. Price (US$) |
4.00 | 1ku |
5.00 | 1ku |
3.45 | 1ku |
2.00 | 1ku |
2.50 | 1ku |
TPS2458 特性
- Dual 12 V Protection and Blocking Control
- Independent Current Limit and Fast Trip
- Blocking Permits ORing of Multiple Inputs
- Power Good and Fault Outputs
- Analog Current Monitor Outputs
- –40°C to 125°C Operating Junction Temperature
- QFN36 Package
- APPLICATIONS
- ATCA Carrier Boards
- AdvancedMC™ Slots
- Blade Servers
- Base Stations
- Configurable for
- 1 Source, 2 Loads
- 2 Sources, 1 Load
- 2 Sources, 2 Loads
TPS2458 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 |
| TPS2458RHBR |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
VQFN (RSM) | 32 |
2500 | LARGE T&R |
TPS2458 |
| TPS2458RHBT |
ACTIVE |
-40 to 85 |
2.30 | 1ku |
VQFN (RSM) | 32 |
250 | SMALL T&R |
TPS2458 |
TPS2458 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 |
| TPS2458RHBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2458RHBR |
TPS2458RHBR |
| TPS2458RHBT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS2458RHBT |
TPS2458RHBT |
TPS2458 应用技术支持与电子电路设计开发资源下载
- TPS2458 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)
TPS2458 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS2458 热插拔/ORing 控制器评估模块 |
TPS2458EVM |
Texas Instruments |
开发电路板/EVM |
