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TPS22949YZPR

更新时间： 2024-09-29 05:52:23
品牌 Logo 应用领域
德州仪器 - TI 电源电路开关电源管理电路PC
页数 文件大小 规格书
24页 742K
描述
CURRENT-LIMITED LOAD SWITCH WITH LOW NOISE REGULATION CAPABILITY

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TPS22949YZPR 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：BGA
包装说明：DSBGA-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.66Samacsys Confidence：
Samacsys Status：ReleasedSamacsys PartID：310460
Samacsys Pin Count：8Samacsys Part Category：Integrated Circuit
Samacsys Package Category：OtherSamacsys Footprint Name：BGA8C50P2X4_190X90X50
Samacsys Released Date：2017-01-12 12:59:53Is 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-XBGA-B8JESD-609代码：e1
长度：1.9 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：VFBGA封装等效代码：BGA8,2X4,20
封装形状：RECTANGULAR封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260电源：3.3 V
认证状态：Not Qualified座面最大高度：0.5 mm
子类别：Power Management Circuits最大供电电压 (Vsup)：4.5 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：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：0.9 mm
Base Number Matches：1

TPS22949YZPR 数据手册

 浏览型号TPS22949YZPR的Datasheet PDF文件第2页浏览型号TPS22949YZPR的Datasheet PDF文件第3页浏览型号TPS22949YZPR的Datasheet PDF文件第4页浏览型号TPS22949YZPR的Datasheet PDF文件第5页浏览型号TPS22949YZPR的Datasheet PDF文件第6页浏览型号TPS22949YZPR的Datasheet PDF文件第7页 
TPS22949  
TPS22949A  
www.ti.com  
SLVS908C –FEBRUARY 2009–REVISED JANUARY 2010  
CURRENT-LIMITED LOAD SWITCH WITH LOW NOISE REGULATION CAPABILITY  
Check for Samples: TPS22949, TPS22949A  
1
FEATURES  
DESCRIPTION  
•
Integrated Current Limiter  
–
–
Input Voltage Range: 1.62 V to 4.5 V  
Low ON-Resistance  
The TPS22949 and TPS22949A are devices that  
provides protection to systems and loads in  
high-current conditions. The device contains  
a
–
–
–
–
rON = 300-mΩ at VIN = 4.5 V  
rON = 350-mΩ at VIN = 3.3 V  
rON = 400-mΩ at VIN = 2.5 V  
rON = 600-mΩ at VIN = 1.8 V  
500-mΩ current-limited P-channel MOSFET that can  
operate over an input voltage range of 1.62 V to  
4.5 V as well as a low-dropout (LDO) regulator with a  
fixed output voltage of 1.8 V.  
The switch is controlled by an on/off input (EN1),  
which is capable of interfacing directly with  
low-voltage control signals. When the switch current  
–
–
–
–
Integrated 100-mA Minimum Current Limit  
Undervoltage Lockout  
Fast-Current Limit Response Time  
Integrated Fault Blanking and Auto Restart  
reaches  
the  
maximum  
operates  
limit,  
the  
a
TPS22949/TPS22949A  
in  
constant-current mode to prohibit excessive currents  
from causing damage. If the constant current  
condition still persists after 12 ms, these devices shut  
off the switch and pull the fault signal pin (OC) low.  
The TPS22949/TPS22949A has an auto-restart  
feature that turns the switch on again after 70 ms if  
the EN1 pin is still active.  
•
•
Stable Without Current Limiter Output  
Capacitor (TPS22949A Only)  
Integrated Low-Noise RF LDO  
–
–
–
–
–
–
–
Input Voltage Range: 1.62 V to 4.5 V  
Low Noise: 50 μVrms (10 Hz to 100 kHz)  
80-dB VIN PSRR (10 Hz to 10 kHz)  
Fast Start-Up Time: 130 μs  
The output of the current limiter is internally  
connected to a RF low-dropout (LDO) regulator that  
offers good ac performance with very low ground  
current, good power-supply rejection ratio (PSRR),  
low noise, fast start-up, and excellent line and load  
transient response. The output of the regulator is  
stable with ceramic capacitors. This LDO uses a  
precision voltage reference and feedback loop to  
achieve overall accuracy of 2% over all load, line,  
process, and temperature variations.  
Low Dropout 100 mV at Iload =100 mA  
Integrated Output Discharge  
Stable With 2.2-μF Output Capacitor  
•
•
1.8-V Compatible Control Input Threshold  
ESD Performance Tested Per JESD 22  
–
3500-V Human-Body Model  
(A114-B, Class II)  
The TPS22949A integrates additional internal  
circuitry that increases the current limit of the switch  
during the power-up sequence. This feature allows  
–
1000-V Charged-Device Model  
(C101)  
•
Tiny 8-Terminal YZP Package (1.9 mm ×  
0.9 mm, 0.5-mm Pitch, 0.5-mm Height) and  
SON-8 (DRG) 3.0 mm × 3.0 mm  
the TPS22949A to operate without  
capacitor at the input of the LDO.  
a storage  
The TPS22949 and TPS22949A are available in a  
space-saving 8-terminal WCSP (YZP) or in a 8-pin  
SON package (DRG). Both are characterized for  
operation over the free-air temperature range of  
–40°C to 85°C.  
APPLICATIONS  
•
•
•
•
•
Fingerprint Module Protection  
Portable Consumer Electronics  
Smart Phone  
Notebooks  
Control Access Systems  
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 © 2009–2010, Texas Instruments Incorporated  
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