- 您现在的位置：买卖IC网 > PDF目录243291 > R3111D201C-TR-FE (RICOH COMPANY LTD) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 PDF资料下载
参数资料
| 型号： | R3111D201C-TR-FE |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封装： | 1.60 X 1.20 MM, HALOGEN AND LEAD FREE, SON-6 |
| 文件页数： | 8/27页 |
| 文件大小： | 358K |
| 代理商： | R3111D201C-TR-FE |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
R3111x
16
Operation of R3111xxxxC
Vref
Ra
Rb
Rc
VDD
OUT
GND
Tr.1
Nch
Pch
Comparator
Block Diagram (R3111xxxxC)
tPLH
GND
VDDL
-VDET
+VDET
Detector Threshold
Released Voltage
Minimum Operating Voltage
12
3
4
5
A
B
Detector Threshold
Hysteresis
Supply Voltage
(VDD)
Output Voltage
(VOUT)
Step
1
2
3
4
5
Comparator (+)
Pin Input Voltage
I
II
I
Comparator Output
H
L
Indefinite
L
H
Tr.1
OFF ON Indefinite ON OFF
Pch
ON OFF Indefinite OFF ON
Output Tr.
Nch
OFF ON Indefinite ON OFF
I
×VDD
Rb
+Rc
Ra
+Rb+Rc
II
×VDD
Rb
Ra
+Rb
Operation Diagram
Explanation of operation
Step 1. The output voltage is equal to the supply voltage (VDD).
Step 2. At Point “A”, Vref >
= VDD×(Rb+Rc)/(Ra+Rb+Rc) is true, as a result, the output of comparator is reversed
from "H" to "L",
therefore the output voltage becomes the GND level. The voltage level of Point A
means a detector threshold voltage (
VDET).
Step 3. When the supply voltage is lower than the minimum operating voltage, the operation of the output
transistor becomes indefinite.
Step 4. The output Voltage is equal to the GND level.
Step 5. At Point “B”, Vref <
= VDD×Rb/(Ra+Rb) is true, as a result, the output of comparator is reversed from "L" to
"H", then the output voltage is equal to the supply voltage (VDD). The voltage level of Point B means a
released voltage (
+VDET).
) The difference between a released voltage and a detector threshold voltage is a detector threshold hysteresis.
Output
Delay Time
相关PDF资料 |
PDF描述 |
|---|---|
| R3111N162C-TR-FE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| R3111N282C-TR-FE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| R3111N411C-TR-FE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| R3111N601A-TR-FE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| R3111Q131C-TR-FE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R3111D211A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:LOW VOLTAGE DETECTOR |
| R3111D211B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:LOW VOLTAGE DETECTOR |
| R3111D211C | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:LOW VOLTAGE DETECTOR |
| R3111D221A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:LOW VOLTAGE DETECTOR |
| R3111D221B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:LOW VOLTAGE DETECTOR |
发布紧急采购，3分钟左右您将得到回复。