 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
LM1851-SP bảng dữ liệu(PDF) 5 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
LM1851-SP bảng dữ liệu(HTML) 5 Page - Texas Instruments |
|
|
5 / 10 page  Typical Performance Characteristics Average Trip Time vs Normal Fault Current Threshold vs RSET Fault Current Output Drive Current vs Pin 1 Saturation Voltage vs External Load Current IL Output Voltage TLH5177 – 4 Circuit Description (Refer to Block and Connection Diagram) The LM1851 operates from 26V as set by an internal shunt regulator D3 In the absence of a fault (Ife0) the feedback path status signal (VS) is correspondingly zero Under these conditions the capacitor discharge current I1 sits quies- cently at three times its threshold value ITH so that noise induced charge on the timing capacitor will be rapidly re- moved When a fault current If is induced in the secondary of the external sense transformer the operational amplifier A1 uses feedback to force a virtual ground at the input as it extracts If The presence of If during either half-cycle will cause VS to go high which in turn changes I1 from 3ITH to ITH Although ITH discharges the timing capacitor during both half-cycles of the line If only charges the capacitor during the half-cycle in which If exits pin 2 Thus during one half-cycle If–ITH charges the timing capacitor while during the other half-cycle ITH discharges it When the capacitor voltage reaches 175V the latch engages and turns off Q3 permitting I2 to drive the gate of an SCR 4 |
Số phần tương tự - LM1851-SP |
|
Mô tả tương tự - LM1851-SP |
|
|
|
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 |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
