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TPS22945

更新时间： 2024-02-22 04:34:36
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德州仪器 - TI 开关输入元件
页数 文件大小 规格书
19页 528K
描述
LOW-INPUT-VOLTAGE CURRENT-LIMITED LOAD SWITCHES WITH SHUT OFF AND AUTO-RESTART FEATURE

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TPS22945 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：SOIC
包装说明：GREEN, PLASTIC, SC-70, 5 PIN针数：5
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.79Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：5653
Samacsys Pin Count：5Samacsys Part Category：Integrated Circuit
Samacsys Package Category：SOT23 (5-Pin)Samacsys Footprint Name：DCK(R-PDSO-G5)
Samacsys Released Date：2015-04-16 09:48:08Is Samacsys：N
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G5JESD-609代码：e4
长度：2 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：5最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP5/6,.08
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：0.9 mm最大供电电流 (Isup)：0.08 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：1.62 V
标称供电电压 (Vsup)：1.8 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.25 mmBase Number Matches：1

TPS22945 数据手册

 浏览型号TPS22945的Datasheet PDF文件第2页浏览型号TPS22945的Datasheet PDF文件第3页浏览型号TPS22945的Datasheet PDF文件第4页浏览型号TPS22945的Datasheet PDF文件第5页浏览型号TPS22945的Datasheet PDF文件第6页浏览型号TPS22945的Datasheet PDF文件第7页 
TPS22941, TPS22942, TPS22943, TPS22944, TPS22945  
www.ti.com  
SLVS832C –NOVEMBER 2008–REVISED NOVEMBER 2009  
LOW-INPUT-VOLTAGE CURRENT-LIMITED LOAD SWITCHES  
WITH SHUT OFF AND AUTO-RESTART FEATURE  
Check for Samples: TPS22941 TPS22942 TPS22943 TPS22944 TPS22945  
1
FEATURES  
DESCRIPTION  
•
Input Voltage Range: 1.62 V to 5.5 V  
•
Low ON resistance  
The TPS2294x load switches provide protection to  
systems and loads in high-current conditions. The  
devices contain a 400-mΩ current-limited P-channel  
MOSFET that can operate over an input voltage  
range of 1.62 V to 5.5 V. Current is prevented from  
flowing when the MOSFET is off. The switch is  
controlled by an on/off input (ON), which is capable of  
interfacing directly with low-voltage control signals.  
The TPS2294x includes thermal shutdown protection  
–
–
–
–
rON = 0.4 Ω at VIN = 5.5 V  
rON = 0.5 Ω at VIN = 3.3 V  
rON = 0.6 Ω at VIN = 2.5 V  
rON = 0.8 Ω at VIN = 1.8 V  
•
•
•
•
•
•
•
•
•
Minimum Current Limit: 40 mA or 100 mA  
Undervoltage Lockout  
that prevents damage to the device when  
a
Thermal Shutdown  
continuous over-current condition causes excessive  
heating by turning off the switch.  
Shutdown Current < 1 μA  
Fast Current Limit Response Time  
Fault Blanking  
When the switch current reaches the maximum limit,  
the TPS22941/2/3/4/5 operates in a constant-current  
mode to prohibit excessive currents from causing  
damage. TPS22941/3 has a current limit of 40 mA  
and TPS22942/4/5 has a current limit of 100 mA.  
Auto Restart  
1.8-V Compatible Control Input Thresholds  
ESD Performance Tested Per JESD 22  
For the TPS22941/2/5, if the constant current  
condition still persists after 10ms, these parts shut off  
the switch and pull the fault signal pin (OC) low. The  
TPS22941/2/5, have an auto-restart feature that turns  
the switch on again after 80 ms if the ON pin is still  
active. A current limit condition on the TPS22943 and  
on the TPS22944 immediately pull the fault signal pin  
low (OC pin) and the part remains in the  
constant-current mode until the switch current falls  
below the current limit.  
–
4000-V Human-Body Model  
(A114-B, Class II)  
–
1000-V Charged-Device Model (C101)  
•
Tiny SC-70 (DCK) Package  
APPLICATIONS  
•
•
•
•
•
•
•
Low-Current Sensor Protection  
HDMI Connector Protection  
Notebooks  
PDAs  
GPS Devices  
The TPS2294x is available in a SC70-5 (DCK)  
package. It is characterized for operation over the  
free-air temperature range of –40°C to 85°C.  
MP3 Players  
Peripheral Ports  
Table 1. Feature List  
MINIMUM CURRENT LIMIT  
CURRENT LIMIT  
BLANKING TIME (ms)  
DEVICE  
(mA)  
AUTO-RESTART TIME (ms)  
ON PIN ACTIVITY  
TPS22941  
TPS22942  
TPS22943  
TPS22944  
TPS22945  
40  
100  
40  
10  
10  
0
80  
80  
Active LOW  
Active LOW  
Active HIGH  
Active HIGH  
Active HIGH  
N/A  
N/A  
80  
100  
100  
0
10  
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.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2009, Texas Instruments Incorporated  
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TPS22945 替代型号

型号 品牌 替代类型 描述 数据表
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