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參數(shù)資料
| 型號： | R1250 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | Linear Sensor Photodiode Array; 128x1 Sensor-Elements Organization; 400 Dots-Per-Inch (DPI) Sensor Pitch; High Linearity and Uniformity; Wide Dynamic Range 4000:1 (72 dB); Low Image Lag 0.5% Typ; Operation to 8MHz |
| 中文描述： | 光電倍增管 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 127K |
| 代理商： | R1250 |
Negative Output Charge Pump Regulator (100mA)
R1250VXX1A
2000.5.25
12345
12345
Rev. 1.10 - 1 -
n
OUTLINE
The R1250Vxx1A Series are Negative Output Charge Pump Regulator ICs which can be developed as a
controller of local power supply for portable appliances and small electric appliances used with batteries, with low
supply current by CMOS process.
Each of these ICs consists of an oscillator, a control circuit, a reference voltage unit, an error amplifier, an output
driver circuit. The R1250Vxx1A can be easily supply negative voltage, or regulated setting output voltage in the range
from –2V to –4V.
The chip enable function works to shut down the internal circuit and reduces supply current at the stand-by mode,
therefore the R1250Vxx1A is very suitable for the application such as portable systems that require low supply
current.
Since the package for this IC is TSSOP8 package (TSOP8 in EIAJ standard), high density mounting of the ICs on
board is possible.
n
FEATURES
O
Output Current
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
100mA (MAX. at V
IN
=5.0V, C
IN
=C
P
=C
OUT
=4.7
m
F,
Set Output Voltage=-3.0V)
O
Output Voltage Accuracy
·
·
±3.0%(V
IN
=5.0V, C
IN
=C
P
=C
OUT
=4.7
m
F, Set Output Voltage=-3.0V, I
OUT
=0mA/10mA)
±9.0%(V
IN
=5.0V, C
IN
=C
P
=C
OUT
=4.7
m
F, Set Output Voltage=-3.0V, I
OUT
=50mA)
O
Output Voltage
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
Stepwise setting with a step of 0.1V in the range from –2.0V
to –4.0V is possible.
O
Range of Input Voltage
·
·
·
·
·
·
·
·
·
·
·
·
·
V
OUT
to +5.5V(Set Output Voltage=-4.0V to -2.8V)
+2.7 to +5.5V(Set Output Voltage=-2.7V to –2.0V)
O
Oscillator Frequency
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
TYP. 280kHz
O
Chip Enable Function (Active at "L")
O
Package
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
TSSOP8
n
APPLICATIONS
O
Power source for Disk Drives.
O
Power source for hand-held communication equipment and battery-powered equipment.
O
Power source for PC peripherals and ADD-ON cards.
O
Power source for portable audio-visual appliances such as cameras.
O
Local power source for small electrical appliances.
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