參數(shù)資料
型號： SG6520DZ
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： PC Power Supply Supervisors
中文描述： 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP16
封裝： LEAD FREE, PLASTIC, DIP-16
文件頁數(shù)： 10/13頁
文件大小： 468K
代理商： SG6520DZ
Product Specification
PC Power Supply Supervisors
SG6520
APPLICATION NOTE
Over Current Protection (OCP)
System General Corp.
Version 1.0.1 (IAO33.0041.B0)
- 10 -
www.sg.com.tw www.fairchildsemi.com
September 28, 2007
The SG6520 provides over current protection for the
3.3V, 5V and two 12V rails. Whenever an OCP
condition occurs at any of the voltage rails, PGO will be
low and FPO will be open. The internal OCP
comparators have a very small offset voltage (±5mV).
The sink currents of IS33, IS5, IS12 and IS12B are 8
times the current at the RI pin. The current at the RI pin
is V
RI
/Ri. Here is an example demonstrating how to set
the over current protection.
If I
1
*R1>(I
RI
*8)*R2, than OCP active.
How to select R2 Resistor:
If R1 =5m
Ω
, Ri=30K, OCP Protection Level is 35A, than
R2 = (I
1
*R1)/(I
RI
*8)
= (35A*5m
Ω
)/{(1.25V/30K)*8}
= 525
Ω
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參數(shù)描述
SG6520SZ 功能描述:監(jiān)控電路 Switch mode Pwr Sply with Active PFC RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
SG6521 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:PC Power Supply Supervisors
SG6521DZ 功能描述:監(jiān)控電路 Switch mode Pwr Sply with Active PFC RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
SG6521SZ 功能描述:監(jiān)控電路 Switch mode Pwr Sply with Active PFC RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
SG6523 制造商:Semtech Corporation 功能描述:
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