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参数资料
| 型号： | 5962-8869701VA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP18 |
| 封装： | CERAMIC, DIP-18 |
| 文件页数： | 14/16页 |
| 文件大小： | 425K |
| 代理商： | 5962-8869701VA |
Fault Windows Scaled Independently
Fault window for the Sense Input,
in percent, is:
–10 (VADJ)
R3 + R1R2/(
R1 + R2)
R3
,
for:
VS (NOM)
R2
R1 + R2
=2.5V
Monitored
SupplyVoltage
VS
R1
R2
R3
UC1903
SENSE1-4INPUT
2.5V
REF.
Fault window for the sense input, in percent, is:
R2
R1 + R2
SENSE
INPUT
R1
R2
UC1903
G.P.OP-AMP
2.5V
REF.
SENSE1-4INPUT
±10(V
)
ADJ
www.ti.com ........................................................................................................................................ SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008
In many applications, it may be desirable to monitor various supply voltages, or voltage levels, with varying fault
windows. Using the reference output and external resistive dividers this is easily accomplished with the UC1903.
Figure 3 and Figure 4 illustrate how the fault window at any sense input can be scaled independently of the
remaining inputs.
A.
Using the reference output and a resistive divider, a sense input with an independently wider fault window can be
generated.
Figure 3. UC1903 Sense Input with an Independently Wider Fault Window
A.
The general purpose op-amp on the UC1903 can be used to create a sense input with an independently tighter fault
window.
Figure 4. UC1903 Sense Input with an Independently Tighter Fault Window
Copyright 1999–2008, Texas Instruments Incorporated
7
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|---|---|
| 5962-8869801EA | 制造商:Texas Instruments 功能描述:Counter Single 4-Bit Binary UP/Down 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:COUNTER SGL 4BIT BINARY UP/DOWN 16CDIP - Rail/Tube |
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