- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384892 > RV5VE001C-E2 (RICOH COMPANY LTD) MULTI-POWER SUPPLY PDF資料下載
參數(shù)資料
| 型號(hào)： | RV5VE001C-E2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | MULTI-POWER SUPPLY |
| 中文描述： | QUAD OUTPUT, FIXED POSITIVE LDO REGULATOR, PDSO16 |
| 封裝： | 0.65 MM PITCH, SSOP-16 |
| 文件頁數(shù)： | 47/49頁 |
| 文件大小： | 321K |
| 代理商： | RV5VE001C-E2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁當(dāng)前第47頁第48頁第49頁
46
TYPICAL APPLICATION
RV5VE001
×
In this example of the circuit, the output of Regulator 4 is used as the power source for CPU. The voltage input
to CSW 1, 2, 3 pins is subject to level shift within the IC so as to have the same level as that of the voltage of CPU.
Therefore CSW 1, 2, 3 pins can be directly connected to CPU. Detector 1 monitors the voltage of the battery and
Detector 2 monitors the voltage of the power source for CPU.
Application for Cellular Phones (RV5VE001
×
)
RV5VE0
×××
VCC
C5
C1
C2
C4 C3
C
D
Tr
R1
R2
R3
R4
Tr
V
DD
R
OUT4
V
SEN2
C
D
RESET
D
OUT
R
OUT1
I
BC1
GND
R
OUT3
V
SEN1
CSW3
CSW2
CSW1
R
OUT2
I
BC2
I/O
I/O
I/O
Logic
Unit
CPU
INT
RESET
Memory
Unit
Transmitter
Unit
Receiver/Audio
Unit
SBD
R
×
5VE001
×
C1,2,5=10μF / C3,4=0.1μF / C
D
=0.1μF
R1,2,3,4=100k
Tr: 2SB799(NEC PNP type,h
FE
=100 to 200)
SBD: MA717(Panasonic)
APPLICATION HINTS
When using these ICs, be sure to take care of the following points :
Minimize the impedance of V
DD
and GND wiring. In particular, with respect to the V
DD
wiring, the output cur-
rent of Regulators flows thereinto, so that when the wiring impedance is high, the operation of the IC tends to be
unstable and is vulnerable to noise.
Provide a capacitor with a capacitance of about 10μF between V
DD
pin and GND pin with a minimum wiring
length.
Rush current flows into the capacitor connected to the output of Regulators at the start of the operation of the
Regulators. In particular, Regulators 1, 2 are equipped with External PNP Transistor and accordingly have
excellent drive performance. Therefore, when Regulators 1, 2 start to operate, for example, under the conditions
that h
FE
of External PNP Transistor is 100 and the base current of the limiter is 5mA, a rush current of 500mA
flows into the regulators. When the wiring impedance is high, the Power Source Voltage applied to IC tends to
be varied by the rush current, so that the operation of IC may be adversely affected by the variation of the Power
Source Voltage.
In these ICs phase compensation is made for securing stable operation even when the load current is varied.
Select the capacitors C1 to C4 conecting the Pin R
OUT
1
to R
OUT
4
with good frequency characteristics and small
ESR.
Be sure to connect a resistor with a resistance of about 100k
between the base and the emitter for preventing
the oscillation.
Set external parts as close as possible to the IC and minimize the connection between the parts and the IC.
When using a capacitor connected to C
D
pin, use a Schottky Barrier Diode (SBD) to discharge C
D
capacitor at
the time of abrupt fluctuation of power source voltage.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RV5VE001A-E1 | MULTI-POWER SUPPLY |
| RV5VE001A-E2 | MULTI-POWER SUPPLY |
| RV5VE001B | MULTI-POWER SUPPLY |
| RV5VE001B-E1 | MULTI-POWER SUPPLY |
| RV5VE001B-E2 | MULTI-POWER SUPPLY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RV5VEXXXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Management ICs |
| RV5VG101C | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:RECHARGEABLE LITHIUM-ION CELL PROTECTORS |
| RV5VG101C-E1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:RECHARGEABLE LITHIUM-ION CELL PROTECTORS |
| RV5VG101C-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:RECHARGEABLE LITHIUM-ION CELL PROTECTORS |
| RV5VG101D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:RECHARGEABLE LITHIUM-ION CELL PROTECTORS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。