TPS2553 可调节限流配电开关

TPS2553 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

TPS2553 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

TPS2553 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
TPS2553DBVR	ACTIVE	-40 to 85	0.75 | 1ku	SOT-23 (DBV) | 6	3000 | LARGE T&R	2553
TPS2553DBVT	ACTIVE	-40 to 85	0.90 | 1ku	SOT-23 (DBV) | 6	250 | SMALL T&R	2553
TPS2553DRVR	ACTIVE	-40 to 85	0.75 | 1ku	SON (DRV) | 6	3000 | LARGE T&R	CHT
TPS2553DRVT	ACTIVE	-40 to 85	0.90 | 1ku	SON (DRV) | 6	250 | SMALL T&R	CHT

TPS2553 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
TPS2553DBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2553DBVR	TPS2553DBVR
TPS2553DBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2553DBVT	TPS2553DBVT
TPS2553DRVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2553DRVR	TPS2553DRVR
TPS2553DRVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TPS2553DRVT	TPS2553DRVT

TPS2553 应用技术支持与电子电路设计开发资源下载

1. TPS2553 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 TPS2553 +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)

TPS2553 相关工具

名称	型号	公司	工具/软件类型
具有用于 TPS2553DBV1EVM-364 的可调节限流评估模块的配电开关	TPS2553DBV1EVM-364	Texas Instruments	开发电路板/EVM
具有用于 TPS2553DRV1EVM-364 的可调节限流评估模块的配电开关	TPS2553DRV1EVM-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