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參數(shù)資料
| 型號(hào)： | ML4830 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Electronic Ballast Controller(電子整流器控制器) |
| 中文描述： | 電子鎮(zhèn)流器控制器（電子整流器控制器） |
| 文件頁數(shù)： | 5/15頁 |
| 文件大小： | 134K |
| 代理商： | ML4830 |
ML4830
REV. 1.0 10/12/2000
5
ELECTRICAL CHARACTERISTICS
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OVP/Inhibit Comparator (Pin 11)
OVP Threshold
4.87
5.0
5.13
V
Hysteresis
0.5
V
Input Bias Current
-0.3
–2
μA
Propagation Delay
500
ns
Shutdown Threshold
6.36
6.7
7.04
V
Shutdown Hysteresis
0.7
1.2
1.7
V
PWM Comparator (PWM Mode)
Start Period Duty Cycle
40
50
60
%
Outputs
Output Voltage Low
I
OUT
= 20mA
I
OUT
= 200mA
I
OUT
= –20mA
I
OUT
= –200mA
I
OUT
= 10mA, V
CC
= 8V
C
L
= 1000pF
0.4
0.8
V
2.1
3.0
V
Output Voltage High
V
CC
– 2.5
V
CC
– 3.0
V
CC
– 1.9
V
CC
– 2.2
0.8
V
V
Output Voltage Low in UVLO
1.5
V
Output Rise/Fall Time
50
ns
Under-Voltage Lockout and Bias Circuits
IC Shunt Voltage (V
CCZ
)
V
CCZ
Load Regulation
V
CCZ
Total Variation
Start-up Current
I
CC
= 25mA
25mA < I
CC
< 68mA
Load, Temp
12.8
13.5
14.2
V
150
300
mV
12.4
14.6
V
V
CC
- 12.3V
V
CC
= V
CCZ
– 0.5V
1.3
1.7
mA
Operating Current
15
19
mA
Start-up Threshold
V
CCZ
– 0.5
V
CCZ
– 3.5
120
V
Shutdown Threshold
V
Shutdown Temperature (T
J
)
Hysteresis (T
J
)
°C
30
°C
FUNCTIONAL DESCRIPTION
OVERVIEW
The ML4830 consists of an Average Current controlled
continuous boost Power Factor front end section with a
flexible ballast control section. Start-up and lamp-out retry
timing are controlled by the selection of external timing
components, allowing for control of a wide variety of
different lamp types. The ballast control section can be set
up to adjust lamp power using either Pulse Width (PWM)
or frequency modulation (FM). Either non-overlapping or
overlapping conduction can be selected for the FM mode.
This allows for the IC to be used with a variety of different
ouput networks.
POWER FACTOR SECTION
The ML4830 Power Factor section is an average current
sensing boost mode PFC control circuit which is
architecturally similar to that found in the ML4821. For
detailed information on this control architecture, please
refer to Application Note 16 and the ML4821 data sheet.
GAIN MODULATOR
The ML4830 gain modulator provides high immunity to
the disturbances caused by high power switching. The
rectified line input sine wave is converted to a current via
a dropping resistor. In this way, small amounts of ground
noise produce an insignificant effect on the reference to
the PWM comparator.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4830CP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Electronic Ballast Controller |
| ML4830CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Electronic Ballast Controller |
| ML4831 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Electronic Ballast Controller |
| ML483-1 | 制造商:CLARKE INTERNATIONAL 功能描述:CASTOR 136KG 4" SWIVEL/BRAK 制造商:CLARKE INTERNATIONAL 功能描述:CASTOR, 136KG, 4", SWIVEL/BRAKE, PLASTIC 制造商:CLARKE INTERNATIONAL 功能描述:CASTOR, 136KG, 4", SWIVEL/BRAKE, PLASTIC, For Use With:Industrial and Material Handling Applications, Carrying Capacity:136kg, Wheel Diameter:100mm , RoHS Compliant: NA |
| ML4831CP | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Fairchild Semiconductor Corporation 功能描述: |
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