参数资料
型号: SG6520ADY
厂商: Fairchild Semiconductor
文件页数: 8/12页
文件大小: 0K
描述: IC SUPERVISOR PC PWR SUPP 16-DIP
标准包装: 30
类型: 多压监控器
监视电压数目: 4
输出: 开路漏极或开路集电极
电压 - 阀值: 3.3V,5V,12V,12V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-DIP
包装: 管件
Functional Description
The SG6520A 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 is
LOW and FPO is open. The internal OCP comparators
have a very small offset voltage ( ± 3mV). The sink
currents of IS33, IS5, and IS12 are eight times the
current at the RI pin. The current at the RI pin is V RI /R I .
Here is an example demonstrating how to set the over
current protection. If I 1 ×R 1 > I RI ×R2, OCP is active. If
R 1 =5m ? , R I =30K ? , and the OCP active level is 35A,
the R 2 resistor is:
R 2 =
I 1 × R 1
I RI × 8
= 525 Ω
(1)
where C is bypass noise; suggested value is between
1μF ~ 2.2μF.
? 2008 Fairchild Semiconductor Corporation
SG6520A ? Rev. 1.0.3
8
Figure 5. OCP Set Up
www.fairchildsemi.com
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