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參數(shù)資料
| 型號： | R1280D002A |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 2CH PWM DC/DC Controller |
| 中文描述： | 2聲道的PWM DC / DC控制器 |
| 文件頁數(shù)： | 6/26頁 |
| 文件大小： | 344K |
| 代理商： | R1280D002A |
Rev.1.10 - 6 -
G
R1280D002B
(Topt=25
°
C)
Conditions
Operating Input Voltage
V
REFOUT
V
REFOUT
Voltage Tolerance
V
IN
=3.3V, I
OUT
=1mA
I
ROUT
V
REFOUT
Output Current
V
IN
=3.3V
VREFOUT
/
V
IN
VREFOUT
/
I
OUT
V
IN
=3.3V
I
LIM
V
REFOUT
Short Current Limit V
IN
=3.3V, V
REFOUT
=0V
VREFOUT
/
T
Temperature Coefficient
V
FB1
V
FB1
Voltage
V
IN
=3.3V
VFB1
/
T V
FB1
Voltage
Temperature Coefficient
I
FB1,2
I
FB1,2
Input Current
V
IN
=5.5V,V
FB1
or V
FB2
=0V or 5.5V
f
OSC
Oscillator Frequency
EXT1,2 Pins at no load, V
IN
=3.3V
I
DD1
Supply Current
V
IN
=5.5V, EXT1,2 pins at no load
Maxdty
Maximum Duty Cycle
V
IN
=3.3V, C
DTC1,2=
1000pF
R
EXTH1
EXT1 “H” ON Resistance
V
IN
=3.3V, I
EXT
=-20mA
Symbol
V
IN
Item
MIN.
2.5
1.478
20
TYP.
MAX.
5.5
1.522
Unit
V
V
mA
mV
1.500
V
REFOUT
Line Regulation
2.5V
≤
V
IN
≤
5.5V
2
6
V
REFOUT
Load Regulation
1mA
≤
I
ROUT
≤
10mA
6
12
mV
25
±
150
mA
V
REFOUT
Voltage
-40
°
C
≤
Topt
≤
85
°
C
ppm/
°
C
0.985
1.000
±
150
1.015
V
-40
°
C
≤
Topt
≤
85
°
C
ppm/
°
C
-0.1
595
0.1
805
3.0
95
8.0
μ
A
kHz
mA
%
700
1.4
90
4.0
84
R
EXTL1
EXT1 “L” ON Resistance
V
IN
=3.3V, I
EXT
=20mA
2.7
5.0
R
EXTH2
EXT2 “H” ON Resistance
V
IN
=3.3V, I
EXT
=-20mA
4.0
8.0
R
EXTL2
EXT2 “L” ON Resistance
V
IN
=3.3V, I
EXT
=20mA
3.7
8.0
T
DLY
Delay Time for Protection
V
IN
=3.3V, V
FB1
=1.1V
→
0V
60
100
140
ms
Tss1
Soft Start Time1 for Ch1
V
IN
=3.3V, C
DTC1
=0.33
μ
F
10
ms
Tss2
Soft Start Time2 for Ch2
V
IN
=3.3V, C
DTC2
=0.33
μ
F
15
ms
V
CEH
CE “H” Input Voltage
V
IN
=5.5V
1.5
V
V
CEL
CE “L” Input Voltage
V
IN
=2.5V
0.3
V
V
UVLOD
UVLO Detector Threshold
V
UVLO
UVLO Released Voltage
2.10
2.20
V
UVLOD
+0.10
2.35
2.45
V
V
I
CEH
I
CEL
I
STB
V
OFF2
CE “H” Input Current
CE “L” Input Current
Standby Current
Input Offset Voltage of Ch2.
V
IN
= V
CE
=5.5V
V
IN
=5.5V, V
CE
=0.0V
V
IN
=5.5V, V
CE
=0.0V
V
IN
=3.3V
-0.1
-0.1
0.1
0.1
2
12
μ
A
μ
A
μ
A
mV
0
-12
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1280D002A-TR | 2CH PWM DC/DC Controller |
| R1280D002B | 2CH PWM DC/DC Controller |
| R1280D002B-TR | Linear Sensor Photodiode Array; 1536x1 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 |
| R1280D002C | |
| R1280D002C-TR | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1280D002A-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002B-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002C | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002C-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
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