поискавой системы для электроныых деталей |
|
TPS2157IDGQ датащи(PDF) 1 Page - Texas Instruments |
|
TPS2157IDGQ датащи(HTML) 1 Page - Texas Instruments |
1 / 19 page TPS2149 TPS2159 SLVS401 – AUGUST 2001 3.3-V LDO AND DUAL SWITCH FOR USB BUS-POWERED HUB POWER MANAGEMENT 1 www.ti.com FEATURES D Complete Power Management Solution for USB Bus-Powered Hubs D 3.3-V 200 mA Low-Dropout Voltage Regulator D Two 5-V 340-mΩ (Typ) High-Side MOSFETs D Independent Thermal- and Short-Circuit Protection for LDO and Each Switch D Overcurrent Indicator With Transient Filter D 2.9-V to 5.5-V Operating Range D CMOS- and TTL-Compatible Enable Inputs D 75-µA (Typ) Supply Current D Available in 8-Pin MSOP (PowerPAD) D –40°C to 85°C Ambient Temperature Range APPLICATIONS D USB Bus-Powered Hubs – Keyboards – Monitors – Hub Boxes DESCRIPTION The TPS2149 incorporates two power distribution switches and an LDO in one small package, providing a USB bus-powered hub power management solution that saves up to 60% in board space over typical implementations. The TPS2149 meets USB 2.0 bus-powered hub requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller. The two MOSFET switches provide power to the downstream ports. With independent enables, the downstream ports remain unpowered until the hub completes enumeration. Each power-distribution switch is capable of supplying 200 mA of continuous current, and the independent logic enables are compatible with 5-V logic and 3-V logic. The switches and the LDO are designed with controlled rise times and fall times to minimize current surges. The TPS2149 has active-low enables while the TPS2159 has active-high enables. LDO and dual switch family selection guide and schematics LDO LDO_OUT LDO_ADJ OC1 OUT1 OUT2 OC2 VIN/SW1 LDO_EN EN1 SW2 EN2 GND TPS2145/55 TSSOP–14 LDO LDO_OUT OC1 OUT1 OUT2 OC2 VIN/SW1 EN1 SW2 EN2 GND TPS2147/57 MSOP–10 LDO LDO_OUT OUT2 OUT1 VIN/SW1 EN2 EN1 GND TPS2148/58 MSOP–8 LDO_EN LDO LDO_OUT OUT1 OUT2 OC VIN EN1 EN2 GND TPS2149/59 MSOP–8 PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. PowerPAD is a trademark of Texas Instruments. Copyright 2001, Texas Instruments Incorporated 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. |
Аналогичный номер детали - TPS2157IDGQ |
|
Аналогичное описание - TPS2157IDGQ |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |