công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
LM2937ES-15 bảng dữ liệu(PDF) 11 Page - Texas Instruments |
|
|
LM2937ES-15 bảng dữ liệu(HTML) 11 Page - Texas Instruments |
11 / 30 page + Current Limit OVSD (§32V) Thermal Shutdown INPUT OUTPUT GND LM2937 PNP Bandgap Reference LM2937 www.ti.com SNVS100F – MARCH 2000 – REVISED JULY 2014 7 Detailed Description 7.1 Overview The LM2937 is a positive voltage regulator capable of supplying up to 500 mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500 mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5 V (1 V ensured maximum over the full operating temperature range). Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500-mA load current when the input to output voltage differential is greater than 3 V. 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Thermal Shutdown (TSD) The Thermal Shutdown circuitry of the LM2937 has been designed to protect the device against temporary thermal overload conditions. The TSD circuitry is not intended to replace proper heat-sinking. Continuously running the LM2937 device at thermal shutdown may degrade device reliability as the junction temperature will be exceeding the absolute maximum junction temperature rating. 7.3.2 Short Circuit Current Limit The output current limiting circuitry of the LM2937 has been designed to limit the output current in cases where the load impedance is unusually low. This includes situations where the output may be shorted directly to ground. Continuous operation of the LM2937 at the current limit will typically result in the LM2937 transitioning into Thermal Shutdown mode. 7.3.3 Overvoltage Shutdown (OVSD) Input voltages greater than typically 32 V will cause the LM2937 output to be disabled. When operating with the input voltage greater than the maximum recommended input voltage of 26 V the device performance is not ensured. Continuous operation with the input voltage greater than the maximum recommended input voltage is discouraged. Copyright © 2000–2014, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: LM2937 |
Số phần tương tự - LM2937ES-15 |
|
Mô tả tương tự - LM2937ES-15 |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |