參數(shù)資料
型號(hào)： R3111Q541C-TZ
廠商： Ricoh Co., Ltd.
英文描述： Mounting Bracket RoHS Compliant: Yes
中文描述： 低電壓檢測(cè)
文件頁(yè)數(shù)： 10/20頁(yè)
文件大?。?/td> 205K
代理商： R3111Q541C-TZ
Rev.1.10
- 10 -
I
OPERATION
V
DD
OUT
GND
Vref
Ra
Rb
Rc
Pch
Nch
Comparator
Figure 1. Block Diagram
t
PLH
Supply Voltage
(V
DD
)
Output Voltage
(V
OUT
)
Released Voltage(+V
DET
)
Detector Threshold(-V
DET
)
Detector Threshold
Hysteresis
1
2
3
4
5
A
B
Minimum Operating Voltage
GND
GND
Step
1
2
3
4
5
Comparator
Pin Input Voltage
I
II
III
IV
V
Comparator Output
H
L
Inde-
finite
Inde-
finite
Inde-
finite
Inde-
finite
L
H
Tr.1
OFF
ON
ON
OFF
Pch
ON
OFF
OFF
ON
Output Tr.
Nch
OFF
ON
ON
OFF
I.
Rc
Rb
Ra
Rc
+
Rb
+
Rb
+
+
V
DD
II.
Rb
Ra
V
DD
Figure 2. Operation Diagram
Step 1.
Step 2.
Output Voltage is equal to Supply Voltage (V
DD
).
At Point “A”, Vref
≥
V
DD
×
(Rb+Rc)/(Ra+Rb+Rc) is true, as a result, the output of comparator is reverse, and
output voltage becomes to GND level. The voltage level of Point A means detector threshold voltage, or
(-V
DET
).
When the supply voltage is less than minimum operating voltage, the operation of output transistor becomes
indefinite, and in the case that output is pulled up to V
DD
, Output voltage equals to V
DD
voltage.
Output Voltage equals to GND level.
At Point “B”, Vref
≤
V
DD
×
Rb/(Ra+Rb) is true, Output of the comparator is reverse, and output voltage is equal to
the supply voltage, or (V
DD
). The voltage level of Point B means released voltage, or (+V
DET
).
* The difference between Released Voltage and Detector Threshold Voltage is Detector Threshold Hysteresis.
Step 3.
Step 4.
Step 5.
相關(guān)PDF資料
PDF描述
R3111E451A-T1 LOW VOLTAGE DETECTOR
R3111H451A-T1 LOW VOLTAGE DETECTOR
R3111Q451A-T1 LOW VOLTAGE DETECTOR
R3111N451A-T1 LOW VOLTAGE DETECTOR
R3111Q451A LOW VOLTAGE DETECTOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R-311L-D 制造商:SCHURTER 制造商全稱:Schurter Inc. 功能描述:Power Cord with IEC Connector C13, Angled
R3-12 制造商:Thomas & Betts 功能描述:KUBE MULTITAP BODY SIZE0 4 POSITION
R313 制造商:EMERSON 功能描述:MOTOR 230/460 VOLT, 60 HERTZ, 3-PHASE, 138/69 AMP, 1190 RPM, FRAME:404T RIGID OPEN, REVERSE, 2-7/8 X 7-1/4KEY, SINGLE BALL BEARINGS FRAME : ALL OTHER HERTZ : 60 HERTZ HP OR WATTAGE : 60 HP PHASE : 3 PHASE ROTATION (ALL SE) : CCW RPM : 1101-1200 RPM VOLTAGE : MULTI VOLT
R3130 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic
R3130A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*