TPS2045A 0.345A、2.7-5.5V 单路高侧 MOSFET、故障报告、工作态高电平启用
TPS2045A 描述
The TPS2045A through TPS2048A and TPS2055A through TPS2058A power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered.
These devices incorporate 80-mΩ N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by an independent 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, these devices limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low.
|
TPS2045A |
TPS2048A |
TPS2055A |
TPS2056A |
TPS2057A |
TPS2058A |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
| Current Limit(A) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
| rDS(on) per FET(Typ)(mOhms) |
80 |
80 |
80 |
80 |
80 |
80 |
| Pin/Package |
8SOIC |
16SOIC |
8SOIC |
8SOIC |
16SOIC |
16SOIC |
| Operating Temperature Range(°C) |
0 to 85 |
0 to 85 |
0 to 85 |
0 to 85 |
0 to 85 |
0 to 85 |
| Continuous Current(Max)(A) |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
| Number of Switches |
1 |
4 |
1 |
2 |
3 |
4 |
| Enable |
Active Low |
Active Low |
Active High |
Active High |
Active High |
Active High |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
TPS2045A 特性
- 80-mΩ High-Side MOSFET Switch
- 250 mA Continuous Current Per Channel
- Independent Thermal and Short-Circuit Protection With Overcurrent Logic Output
- Operating Range: 2.7-V to 5.5-V
- CMOS- and TTL-Compatible Enable Inputs
- 2.5-ms Typical Rise Time
- Undervoltage Lockout
- 10 µA Maximum Standby Supply Current for Single and Dual (20 µA for Triple and Quad)
- Bidirectional Switch
- Ambient Temperature Range, 0°C to 85°C
- ESD Protection
TPS2045A 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 |
| TPS2045AD |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
2045A |
| TPS2045ADG4 |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
2045A |
TPS2045A 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 |
| TPS2045AD |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2045AD |
TPS2045AD |
| TPS2045ADG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS2045ADG4 |
TPS2045ADG4 |
TPS2045A 应用技术支持与电子电路设计开发资源下载
- TPS2045A 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)
- 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)
TPS2045A 相关工具
