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參數(shù)資料
| 型號(hào)： | AS2214N |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Primary Side PWM Controller |
| 中文描述： | 一次側(cè)PWM控制器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 53K |
| 代理商： | AS2214N |
AS2214
Electrical Characteristics
(cont’d)
Primary Side PWM Controller
ASTEC Semiconductor
88
Electrical Characteristics are guaranteed over full junction temperature range (0 to 105
°
C). Ambient temperature must be derated
based on power dissipation and package thermal characteristics. Unless otherwise specified, the conditions of test are V
CC
= 15 V;
BOK = 3 V; OV = 0V; R
T
= 680
; C
T
= 10 nF. To override UVLO, V
CC
should be raised above 18 V prior to test.
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
5 V Regulator
Output Voltage
V
REG
I
REG
= 1 mA, T
J
= 25
°
C
4.90
5.00
5.10
V
Line Regulation
PSRR
12
≤
V
CC
≤
18 V
5
15
mV
Load Regulation
1
≤
I
REG
≤
20mA
5
15
mV
Temperature Stability
TC
REG
0.2
0.4
mV/
°
C
Total Output Variation
Line, Load,Temperature
4.85
5.15
V
Long-Term Stability
Over 1,000 hrs at 25
°
C
5
25
mV
Output Noise Voltage
V
NOISE
10
≤
f
≤
100kHz, T
J
= 25
°
C
50
μ
V
Maximum Source Current
I
MAX
V
REG
= 4.8 V
30
120
180
mA
Oscillator
Initial Accuracy
F
OSC
T
J
=25
°
C
108
120
132
kHz
Voltage Stability
12
≤
V
CC
≤
18 V
0.2
1
%
Temperature Stability
TC
F
T
MIN
≤
T
J
≤
T
MAX
5
%
Amplitude
V
OSC
VRT/CT peak-to-peak
1.55
V
Upper Trip Point
V
H
2.80
V
Lower Trip Point
V
L
1.25
V
Discharge Current
I
DSC
7.50
8.70
9.50
mA
Duty cycle Limit
R
T
=680
, C
T
=10nF, T
J
=25
°
C
46
50
54
%
Over-Temperature Shutdown
T
OT
140
°
C
Soft Start Comparator
SS Charge Current
I
SS
V
SS
≤
V
RAMP
-4
-6
-10
μ
A
SS Discharge Current
I
Dsc
SS
V
SS
= 1 V, V
OV
> 2.5V
2
8
mA
SS Lower Clamp
V
SS Low
0.6
V
RAMP High Level
V
RAMPH
T
J
=25
°
C
2.15
V
RAMP Low Level
V
RAMPL
T
J
=25
°
C
0.6
V
RAMP Levels TC
Note: RAMP wavefrom is the same as
the RT/CT wavefrom, but level shifted
down one diode drop
-2
mV/
°
C
RAMP Sink Current
I
RAMPL
T
J
=25
°
C
–0.1
–0.2
mA
RAMP Source Current
I
RAMPH
T
J
=25
°
C
1
mA
Propagation Delay to Output
t
PB
85
150
ns
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