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參數(shù)資料
| 型號： | ML4833 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Electronic Dimming Ballast Controller(電子調(diào)光整流器控制器) |
| 中文描述： | 電子調(diào)光鎮(zhèn)流器控制器（電子調(diào)光整流器控制器） |
| 文件頁數(shù)： | 4/13頁 |
| 文件大小： | 136K |
| 代理商： | ML4833 |
ML4833
4
REV. 1.0 10/12/2000
ELECTRICAL CHARACTERISTICS
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Oscillator (Continued)
C
T
Charging Current
Voltage at LAMP FB = 3V,
R
T
/C
T
= 2.5V, R
X
/C
X
= 0.9V (Preheat)
LAMP FB = 3V, R
T
/C
T
= 2.5V,
R
X
/C
X
= Open
Voltage at R
T
/C
T
= 2.5V
–90
–110
–130
μA
–180
–220
–260
μA
C
T
Discharge Current
Output Drive Deadtime
4.0
5.5
7.0
mA
0.65
1
1.35
μs
Reference Section
Output Voltage
T
A
= 25°C, I
O
= 1mA
V
CCZ
– 4.5V < V
CC
< V
CCZ
– 0.5V
1mA < I
O
< 5mA
7.4
7.5
7.6
V
Line regulation
2
35
mV
Load regulation
2
15
mV
Temperature stability
0.4
%
Total Variation
Line, load, temp
7.35
7.65
V
Output Noise Voltage
10Hz to 10kHz
50
μV
Long Term Stability
T
J
= 125°C, 1000 hrs
5
mV
Preheat and Interrupt Timer (R
X
/C
X
where R
X
= 680ky, C
X
= 4.7μF)
Initial Preheat Period
0.8
s
Subsequent Preheat Period
0.7
s
Start Period
1.2
s
Interrupt Period
5.7
s
R
X
/C
X
Charging Current
R
X
/C
X
Open Circuit Voltage
R
X
/C
X
Maximum Voltage
Input Bias Current
–24
–28
–33
μA
V
CC
< Start-up threshold
0.4
0.7
1.0
V
7.0
7.3
7.7
V
Voltage at C
RAMP
= 1.2V
0.1
μA
Preheat Lower Threshold
1.05
1.22
1.36
V
Preheat Upper Threshold
4.2
4.7
5.1
V
Interrupt Recovery Threshold
1.05
1.22
1.36
V
Start Period End Threshold
6.05
6.6
7.35
V
Interrupt Input (INTERRUPT)
Interrupt Threshold
1.1
1.22
1.4
V
Input Bias Current
0.1
μA
R
SET
Voltage
OVP Comparator (PVFB/OVP)
2.4
2.5
2.6
V
OVP Threshold
2.63
2.73
2.83
V
Hysteresis
0.18
0.23
0.27
V
Propagation Delay
1.4
μs
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