TPS2044B 四路限流配电开关
TPS2044B 描述
The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-m N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low.
|
TPS2041B |
TPS2042B |
TPS2043B |
TPS2044B |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
2.7 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
| Current Limit(A) |
1 |
1 |
1 |
1 |
| rDS(on) per FET(Typ)(mOhms) |
70 |
70 |
70 |
70 |
| Pin/Package |
5SOT-23, 8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC, 8SON |
16SOIC |
16SOIC |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Continuous Current(Max)(A) |
0.5 |
0.5 |
0.5 |
0.5 |
| Number of Switches |
1 |
2 |
3 |
4 |
| Enable |
Active Low |
Active Low |
Active Low |
Active Low |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
TPS2044B 特性
- 70-mOhm High-Side MOSFET
- 500-mA Continuous Current
- Thermal and Short-Circuit Protection
- Accurate Current Limit
(0.75 A min, 1.25 A max)
- Operating Range: 2.7 V to 5.5 V
- 0.6-ms Typical Rise Time
- Undervoltage Lockout
- Deglitched Fault Report (OC)
- No OC Glitch During Power Up
- Maximum Standby Supply Current:
1-uA (Single, Dual) or 2-uA (Triple, Quad)
- Ambient Temperature Range: -40°C to 85°C
- UL Recognized, File Number E169910
- Additional UL Recognition for TPS2042B and TPS2052B for
Ganged Configuration
- APPLICATIONS
- Heavy Capacitive Loads
- Short-Circuit Protections
TPS2044B 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 |
| TPS2044BD |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
2044B |
| TPS2044BDG4 |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
2044B |
| TPS2044BDR |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
2044B |
| TPS2044BDRG4 |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
2044B |
TPS2044B 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 |
| TPS2044BD |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2044BD |
TPS2044BD |
| TPS2044BDG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2044BDG4 |
TPS2044BDG4 |
| TPS2044BDR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2044BDR |
TPS2044BDR |
| TPS2044BDRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2044BDRG4 |
TPS2044BDRG4 |
TPS2044B 应用技术支持与电子电路设计开发资源下载
- TPS2044B 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
- 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)
TPS2044B 相关工具