參數(shù)資料
型號： R1280D002C-TR
文件頁數(shù)： 7/26頁
文件大小： 344K
代理商： R1280D002C-TR
Rev. 1.10 - 7 -
G
R1280D002C
(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
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
160
0.1
240
1.2
8.0
μ
A
kHz
mA
200
0.7
4.0
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
50
100
150
ms
V
UVLOD
UVLO Detector Threshold
V
UVLO
UVLO Released Voltage
2.10
2.20
V
UVLOD
+0.10
0.25
1.2
0.25
1.2
110
1.9
2.35
2.45
V
V
V
DTC10
CH1 Duty=0%
V
DTC1100
CH1 Duty=100%
V
DTC20
CH2 Duty=0%
V
DTC2100
CH2 Duty=100%
A
V1
CH1 Open Loop Gain
F
T1
CH1 Single Gain Frequency
Band
V
ICR1
CH1 Input Voltage Range
V
IN
=3.3V
V
IN
=3.3V
V
IN
=3.3V
V
IN
=3.3V
V
IN
=3.3V
V
IN
=3.3V, A
V1
=0dB
0.15
1.1
0.15
1.1
0.35
1.3
0.35
1.3
V
V
V
V
dB
MHz
V
IN
=3.3V
0.7 to
V
IN
115
V
I
AMPL
CH1 Sink Current
V
IN
=3.3V, V
AMPOUT1
=1.0V,
V
FB1
=V
FB1
+ 0.1V
V
IN
=3.3V, V
AMPOUT1
=1.0V,
V
FB1
=V
FB1-
0.1V
V
IN
=3.3V
V
IN
=3.3V, A
V2
=0dB
70
μ
A
I
AMPH
CH1 Source Current
-1.4
-0.7
mA
A
V2
F
T1
CH2 Open Loop Gain
CH2 Single Gain Frequency
Band
CH2 Input Voltage Range
60
3
dB
MHz
V
ICR1
V
IN
=3.3V,
-0.2 to
V
IN-1.3
V
V
FB2
CH2 Input Offset Voltage
V
IN
=3.3V,
-12
12
mV
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