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参数资料
| 型号： | RV5VE001S-E1 |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | 0.65 MM PITCH, SSOP-16 |
| 文件页数： | 11/49页 |
| 文件大小： | 321K |
| 代理商： | RV5VE001S-E1 |
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18
Detector 1
VDD
Current Source
Ra
Rb
Rc
Tr.1
Output Tr.
VSEN1
DOUT
GND
Nch
Vref
+
–
Operation Diagram
A
B
Released Voltage +VDET
Detected Voltage –VDET
Minimum Operating Voltage
GND
Step
GND
Output Voltage
1
2
3
4
5
Detector Threshold Hysteresis
Step
Step 1
Step 2
Step 3
Step 4
Step 5
Comparator(+)Pin
Input Voltage
III
II
I
Comparator Output
HL
L
H
Tr. 1
OFF
ON
OFF
Output Tr.
Nch
OFF
ON
Indefinite
ON
OFF
I
.
Rb + Rc
Ra + Rb + Rc
VDD
II.
Rb
Ra + Rb
VDD
Step 1. Output Voltage is equal to Pull-up Voltage.
Step 2. When Input Voltage (VSEN1)reaches the state of Vref
≥ VSEN1 (Rb+Rc)/(Ra+Rb+Rc)at Point A (Detected Voltage –VDET), the output of Comparator
is reversed, so that Output Voltage becomes GND.
Step 3. Output Voltage becomes indefinite when Power Source Voltage (VDD) is smaller than Minimum Operating Voltage. When the output is pulled-
up,VDD is output.
Step 4. Output Voltage becomes equal to GND.
Step 5. When Input Voltage to (VSEN1) reaches the state of Vref
≤ VSEN1 Rb/(Ra + Rb) at Point B (Released Voltage+VDET), the output of Comparator is reversed,
so that Output Voltage becomes equal to Pulled-up Voltage.
Step of Operation
The following descriptions deal with VDD pin and VSEN1 pin as connected each other, but Detector 1 can be detect-
ed the different voltage from VDD through VSEN1 pin.
RV5VE0
×××
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