Figure 6: Low Voltage Detectors" />
參數(shù)資料
型號(hào): AMIS-49250-XTP
廠商: ON Semiconductor
文件頁數(shù): 5/22頁
文件大?。?/td> 0K
描述: IC TXRX FIELDBUS MAU 44NQFP
標(biāo)準(zhǔn)包裝: 2,500
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: MDS-MAU
電源電壓: 4.75 V ~ 6.2 V
安裝類型: 表面貼裝
封裝/外殼: 44-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 44-NQFP(7x7)
包裝: 帶卷 (TR)
AMIS-492x0
N_PFail1
N_PFail2
4
5
SHSETIN
Low Voltage Detectors
VCC2
C3
VCC2
C4
SRSETIN
C1
R1
VDD
C2
R2
VDD
0.9*VREF
Figure 6: Low Voltage Detectors
If you do not use one of the regulators, the corresponding alarm signal can potentially be used to monitor another signal. For example,
if the series regulator is not used, SRAO should be left open, SRTR tied to VCC, VO grounded and SRSET left open. Then SRSETIN
can be the input for monitoring another voltage signal with N_PFAIL2.
4.2.4. Voltage Reference
The voltage reference circuitry generates two voltage signals, VREF and VMID. VREF comes from a bandgap circuit and is used as
the reference voltage for all circuits in the AMIS-492x0 Fieldbus MAU. The typical value for VREF is 1.185V. See Figure 7.
An operational amplifier is regulating VMID to provide a bias (common) level for the AC signals. Its typical voltage is 2V. A capacitor
larger than 0.01
μF is necessary on VMID to remove high-frequency ripple.
Figure 7: Bandgap and VMID Voltage Reference
Rev. 6 | Page 13 of 22 | www.onsemi.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AMIS-492X0 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Fieldbus MAU
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