PDF《限流配电开关》

TPS20xxC, TPS20xxC-2 www.

ti.com.cn ZHCS443G CJUNE 2011CREVISED JULY

2013 限 限流 流配 配电 电开 开关 关 1特 特性 性说说明 明2? 单 单一 一电 电源 源开 开关 关系 系列 列产 产品 品TPS20xxC 和TPS20xxC-2 配电开关系列产品用于诸 如USB 等有可能遇到高电容负载和短路的应用. 这一 ? 与 与现 现有 有的 的德 德州 州仪 仪器 器(TI) 系 系列 列产 产品 品引 引脚 脚到 到引 引脚 脚对 对应 应 系列产品为电流介于 0.5A 和2A 之间的应用提供具有 ? 0.5A, ,1A, ,1.5A, ,2A 的 的额 额定 定电 电流 流 固定电流限值阀值的多种器件. ? ±20% 精 精确 确、 、固 固定 定、 、恒 恒定 定电 电流 流限 限制 制?快快速 速过 过流 流响 响应 应时 时间 间为 为-2ns 当输出负载超过电流限值阀值时,TPS20xxC 和?去去尖 尖峰 峰脉 脉冲 冲故 故障 障报 报告 告TPS20xxC-2 通过运行在恒定电流模式下来将输出电流 ? 已 已选 选择 择具 具有 有(TPS20xxC) 和 和没 没有 有(TPS20xxC-2) 输输限制在安全的水平上. 这就在所有条件下提供了一个 出 出放 放电 电的 的部 部件 件 可预计的故障电流. 当输出被短接时,快速过载响应 ? 反 反向 向电 电流 流阻 阻断 断 时间减轻了主 5V 电源提供稳压电源的负担. 为了大 ? 内 内置 置软 软启 启动 动 大减少打开和关闭期间的电流冲击,电源开关的上升和 ? 环 环境 境温 温度 度范 范围 围: :-40°C 至至85°C 下降次数受到控制. ? 经经UL 检 检测 测和 和认 认证 证以 以及 及CB 认 认证 证-文 文件 件号 号E169910 应 应用 用范 范围 围?USB 端 端口 口/集 集线 线器 器、 、笔 笔记 记本 本、 、台 台式 式机 机?高高清 清数 数字 字电 电视 视?机机顶 顶盒 盒?短短路 路保 保护 护功 功能 能图图1. 典 典型 型应 应用 用 中删除了注释

2 表表1. 器 器件 件(1) 状 状态 态最最大 大运 运行 行器器件 件小小外 外形 形尺 尺寸 寸晶 晶体 体管 管(SOT) 23- 电 电流 流MSOP-8 ( PowerPad?) 封 封装 装MSOP-8

5 0.5 TPS2041C 和51C ― 激活和激活 ―

1 TPS2061C 和65C 激活和激活 激活和激活 ―

1 TPS2065C-2 激活 激活 ― 1.5 TPS2068C 和69C 激活和激活 ― 和激活 ― 1.5 TPS2069C-2 激活 ― ―

2 TPS2000C 和01C 激活和激活 ― 激活和激活 (1) 要获得更多细节,请见此器件信息表.

1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2PowerPad is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. 版权 ? 2011C2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not English Data Sheet: SLVSAU6 necessarily include testing of all parameters. TPS20xxC, TPS20xxC-2 ZHCS443G CJUNE 2011CREVISED JULY

2013 www.ti.com.cn This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DEVICE INFORMATION(1) PACKAGED DEVICE AND MARKING(2) MAXIMUM OUTPUT BASE PART OPERATING ENABLE MSOP-8 (DGN) SOT23-5 MSOP-8 DISCHARGE NUMBER CURRENT PowerPAD? (DBV) (DGK) 0.5 Y Low TPS2041C C PYJI C 0.5 Y High TPS2051C C VBYQ C

1 Y Low TPS2061C PXMI PXLI C

1 Y High TPS2065C VCAQ VCAQ C

1 N High TPS2065C-2 PYRI PYQI C 1.5 Y Low TPS2068C PXNI C C 1.5 Y High TPS2069C VBUQ PYKI C 1.5 N High TPS2069C-2 PYSI C C

2 Y Low TPS2000C BCMS C PXFI

2 Y High TPS2001C VBWQ C PXGI (1) For the most current packaging and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. (2) - indicates the device is not available in this package. ABSOLUTE MAXIMUM RATINGS(1)(2) VALUE UNIT MIN MAX Voltage range on IN, OUT, EN or EN, FLT (3) C0.3

6 V Voltage range from IN to OUT C6

6 V Maximum junction temperature, TJ Internally Limited HBM

2 kV Electrostatic Discharge CDM

500 V IEC 61000-4-2, Contact / Air (4)

8 15 kV (1) Absolute maximum ratings apply over recommended junction temperature range. (2) Voltages are with respect to GND unless otherwise noted. (3) See the Input and Output Capacitance section. (4) VOUT was surged on a pcb with input and output bypassing per 图1(except input capacitor was

22 ?F) with no device failures. THERMAL INFORMATION 0.5 A or

1 A 1.5 A or

2 A 0.5 A or

1 A 1.5 A or

2 A

2 A Rated Rated Rated Rated Rated THERMAL METRIC(1) UNITS (See DEVICE INFORMATION table.) DBV DBV DGN DGN DGK

5 PINS

5 PINS

8 PINS

8 PINS

8 PINS θJA Junction-to-ambient thermal resistance 224.9 220.4 72.1 67.1 205.5 θJCtop Junction-to-case (top) thermal resistance 95.2 89.7 87.3 80.8 94.3 θJB Junction-to-board thermal resistance 51.4 46.9 42.2 37.2 126.9 ψJT Junction-to-top characterization parameter 6.6 5.2 7.3 5.6 24.7 °C/W ψJB Junction-to-board characterization parameter 50.3 46.2 42.0 36.9 125.2 θJCbot Junction-to-case (bottom) thermal resistance N/A N/A 39.2 32.1 N/A See the Power DIssipation and Junction θJACustom 139.3 134.9 66.5 61.3 110.3 Temperature section (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

2 Copyright ? 2011C2013, Texas Instruments Incorporated TPS20xxC, TPS20xxC-2 www.ti.com.cn ZHCS443G CJUNE 2011CREVISED JULY

2013 RECOMMENDED OPERATING CONDITIONS MIN NOM MAX UNIT VIN Input voltage, IN 4.5 5.5 V VEN Input voltage, EN or EN

0 5.5 V VIH High-level input voltage, EN or EN

2 V VIL Low-level input voltage, EN or EN 0.7 V TPS2041C and TPS2051C 0.5 TPS2061C, TPS2065C and TPS2065C-2

1 Continuous output current, IOUT A OUT(1) TPS2068C, TPS2069C and TPS2069C-2 1.5 TPS2000C and TPS2001C

2 TJ Operating junction temperature C40

125 °C IFLT Sink current into FLT

0 5 mA (1) Some package and current rating may request an ambient temperature derating of 85°C. ELECTRICAL CHARACTERISTICS: TJ = TA = 25°C(1) Unless otherwise noted:, VIN =

5 V, VEN = VIN or VEN = GND, IOUT =

0 A. See the '

Device Information'

table for the rated current of each part number. Parametrics over a wider operational range are shown in the second '

Electrical Characteristics'

table. PARAMETER TEST CONDITIONS(1) MIN TYP MAX UNIT POWER SWITCH 0.5 A rated output, 25°C DBV

97 110 m? 0.5 A rated output, DBV

96 130 m? C40°C ≤ (TJ , TA) ≤ 85°C DBV

96 110

1 A rated output, 25°C m? DGN

86 100 DBV

96 130

1 A rated output, m? C40°C ≤ (TJ , TA) ≤ 85°C DGN

86 120 RDS(on) Input C output resistance DBV

76 91 m? 1.5 A rated output, 25°C DGN

69 84 m? DBV

76 106 m? 1.5 A rated output, C40°C ≤ (TJ , TA) ≤ 85°C DGN

69 98 m?

2 A rated output, 25°C DGN, DGK

72 84 m?

2 A rated output, C40°C ≤ (TJ , TA) ≤ DGN, DGK

72 98 m? 85°C CURRENT LIMIT 0.5A rated output TPS20xxC 0.67 0.85 1.01 TPS20xxC 1.3 1.55 1.8

1 A rated output TPS20xxC-2 1.18 1.53 1.88 Current-limit, IOS (2) A See Figure

7 TPS20xxC 1.7 2.15 2.5 1.5 A rated output TPS20xxC-2 1.71 2.23 2.75

2 A rated output TPS20xxC 2.35 2.9 3.4 SUPPLY CURRENT IOUT =

0 A 0.01

1 ISD Supply current, switch disabled ?A C40°C ≤ (TJ , TA) ≤ 85°C, VIN = 5.5 V, IOUT =

0 A

2 IOUT =

0 A

60 70 ISE Supply current, switch enabled ?A C40°C ≤ (TJ , TA) ≤ 85°C, VIN = 5.5 V, IOUT =

0 A

85 VOUT =

0 V, VIN =

5 V, disabled, 0.05

1 measure IVIN Ilkg Leakage current TPS20xxC-2 ?A C40°C ≤ (TJ , TA) ≤ 85°C, VOUT =

0 V,

2 VIN =

5 V, disabled, measu........