TPS2552 可调节限流配电开关
TPS2552 描述
The TPS2552/53 and TPS2552-1/53-1 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typ) via an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turn on/off.
TPS2552/53 devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold
|
TPS2552 |
TPS2552-1 |
TPS2553 |
TPS2553-1 |
| Vin(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
| Vin(Max)(V) |
6.5 |
6.5 |
6.5 |
6.5 |
| Current Limit(A) |
0.075 to 1.7 |
0.075 to 1.7 |
0.075 to 1.7 |
0.075 to 1.7 |
| Current Limit Accuracy @ 1A |
+/-7.5% (925mA min / 1075mA max) |
+/-7.5% (925mA min / 1075mA max) |
+/-7.5% (925mA min / 1075mA max) |
+/-7.5% (925mA min / 1075mA max) |
| rDS(on) per FET(Typ)(mOhms) |
100/DRV, 85/DBV |
100/DRV, 85/DBV |
100/DRV, 85/DBV |
100/DRV, 85/DBV |
| Pin/Package |
6SON, 6SOT-23 |
6SON, 6SOT-23 |
6SOT-23, 6SON |
6SON, 6SOT-23 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Continuous Current(Max)(A) |
1.5 |
1.5 |
1.5 |
1.5 |
| Number of Switches |
1 |
1 |
1 |
1 |
| Enable |
Active Low |
Active Low |
Active High |
Active High |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Current Limit Topology |
Constant-Current |
Latch-off |
Constant-Current |
Latch-off |
TPS2552 特性
- Up to 1.5 A Maximum Load Current
- ±6% Current-Limit Accuracy at 1.7 A (typ)
- Meets USB Current-Limiting Requirements
- Backwards Compatible with TPS2550/51
- Adjustable Current Limit, 75 mA-1300 mA (typ)
- Constant-Current (TPS2552/53) and Latch-off (TPS2552-1/53-1) Versions
- Fast Overcurrent Response - 2-µS (typ)
- 85-mΩ High-Side MOSFET (DBV Package)
- Reverse Input-Output Voltage Protection
- Operating Range: 2.5 V to 6.5 V
- 1-µA Maximum Standby Supply Current
- Built-in Soft-Start
- 15 kV ESD Protection per IEC 61000-4-2 (with External Capacitance)
- UL Listed - File No. E169910
- APPLICATIONS
- USB Ports/Hubs
- Digital TV
- Set-Top Boxes
- VOIP Phones
TPS2552 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 |
| TPS2552DBVR |
ACTIVE |
-40 to 85 |
0.75 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
2552 |
| TPS2552DBVT |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
2552 |
| TPS2552DRVR |
ACTIVE |
-40 to 85 |
0.75 | 1ku |
SON (DRV) | 6 |
3000 | LARGE T&R |
CHT |
| TPS2552DRVT |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SON (DRV) | 6 |
250 | SMALL T&R |
CHT |
TPS2552 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 |
| TPS2552DBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2552DBVR |
TPS2552DBVR |
| TPS2552DBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2552DBVT |
TPS2552DBVT |
| TPS2552DRVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2552DRVR |
TPS2552DRVR |
| TPS2552DRVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2552DRVT |
TPS2552DRVT |
TPS2552 应用技术支持与电子电路设计开发资源下载
- TPS2552 数据资料 dataSheet 下载.PDF
- TI 德州仪器USB 电源开关产品选型与价格 . 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)
- Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs
(PDF 356 KB)
- DN-103 Controlling a -5V Rail Using TPS2552 +3V to +8V Hot-Swap Power Manager
(PDF 37 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)
TPS2552 相关工具
