- 您现在的位置：买卖IC网 > PDF目录224995 > R3113D121A-TR-F (RICOH COMPANY LTD) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 PDF资料下载
参数资料
| 型号： | R3113D121A-TR-F |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封装： | 1.40 X 0.80 MM, HALOGEN AND LEAD FREE, SON-3 |
| 文件页数： | 3/20页 |
| 文件大小： | 452K |
| 代理商： | R3113D121A-TR-F |
R3113D
11
OPERATION
VDD
OUT
GND
Vref
Ra
Rb
Rc
Pch
Nch
Comparator
Figure 1. Block Diagram
tPLH
Supply Voltage
(VDD)
Output Voltage
(VOUT)
Released Voltage(+VDET)
Detector Threshold(-VDET)
Detector Threshold
Hysteresis
12
3
4
5
A
B
Minimum Operating Voltage
GND
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
Rb
+ Rc
I.
Ra
+ Rb + Rc
× VDD
Rb
II.
Ra
+ Rb
× VDD
Figure 2. Operation Diagram
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 reverse, and
output voltage becomes to GND level. The voltage level of Point A means detector threshold voltage, or
(-VDET).
Step 3. 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 VDD, the output voltage equals to VDD
voltage.
Step 4. The output voltage equals to GND level.
Step 5. At Point “B”, Vref≤VDD
×Rb/(Ra+Rb) is true, Output of the comparator is reverse, and output voltage is
equal to the supply voltage, or (VDD). The voltage level of Point B means released voltage, or (+VDET).
The difference between released voltage and detector threshold voltage is the detector threshold hysteresis.
相关PDF资料 |
PDF描述 |
|---|---|
| R3113D251A-TR-F | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| R3113D151D-TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO3 |
| R3113D351D-TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO3 |
| R3113D181C-TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO3 |
| R3114N101A-TR-F | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R-311L-D | 制造商:SCHURTER 制造商全称: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:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| R3130A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
发布紧急采购，3分钟左右您将得到回复。