TPS2552-1 可调节限流配电开关

TPS2552-1 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

TPS2552-1 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-uS (typ)
• 85-mOhm High-Side MOSFET (DBV Package)
• Reverse Input-Output Voltage Protection
• Operating Range: 2.5 V to 6.5 V
• 1-uA 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

TPS2552-1 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-1	ACTIVE	-40 to 85	0.75 | 1ku	SOT-23 (DBV) | 6	3000 | LARGE T&R	CHZ
TPS2552DBVT-1	ACTIVE	-40 to 85	0.90 | 1ku	SOT-23 (DBV) | 6	250 | SMALL T&R	CHZ
TPS2552DRVR-1	ACTIVE	-40 to 85	0.75 | 1ku	SON (DRV) | 6	3000 | LARGE T&R	CJZ
TPS2552DRVT-1	ACTIVE	-40 to 85	0.90 | 1ku	SON (DRV) | 6	250 | SMALL T&R	CJZ

TPS2552-1 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-1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2552DBVR-1	TPS2552DBVR-1
TPS2552DBVT-1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2552DBVT-1	TPS2552DBVT-1
TPS2552DRVR-1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2552DRVR-1	TPS2552DRVR-1
TPS2552DRVT-1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2552DRVT-1	TPS2552DRVT-1

TPS2552-1 应用技术支持与电子电路设计开发资源下载

1. TPS2552-1 数据资料 dataSheet 下载.PDF
2. TI 德州仪器USB 电源开关产品选型与价格 . xls
3. PowerPADTM Thermally Enhanced Package (PDF 1040 KB)
4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
5. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
6. Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs (PDF 356 KB)
7. DN-103 Controlling a -5V Rail Using TPS2552-1 +3V to +8V Hot-Swap Power Manager (PDF 37 KB)
8. PowerPADTM Made Easy (PDF 57 KB)
9. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
10. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
11. 所选封装材料的热学和电学性质 (PDF 645 KB)
12. 高速数据转换 (PDF 1967 KB)

TPS2552-1 相关工具

名称	型号	公司	工具/软件类型
具有用于 TPS2552DBV1EVM-364 的可调节限流评估模块的配电开关	TPS2552DBV1EVM-364	Texas Instruments	开发电路板/EVM
具有用于 TPS2552DRV1EVM-364 的可调节限流评估模块的配电开关	TPS2552DRV1EVM-364	Texas Instruments	开发电路板/EVM
免费工具：TPS2552/53 限流阀值计算器工具	TPS255X-CURRENT-LIMIT-CALC	Texas Instruments	计算实用程序