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參數(shù)資料
| 型號： | AS3845NT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Current Mode Controller |
| 中文描述： | 電流模式控制器 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 155K |
| 代理商： | AS3845NT |
4
ASTEC Semiconductor
AS384x
Current Mode Controller
Electrical Characteristics
Electrical characteristics are guaranteed over full junction temperature range (0 to 105C). Ambient temperature must be derated
based on power dissipation and package thermal characteristics. The conditions are: V
CC
= 15 V, R
T
= 10 k, and C
T
= 3.3 nF, unless
otherwise stated. To override UVLO, V
CC
should be raised above 17 V prior to test.
Parameter
Symbol
Test Condition
Min.
Typ.
Max.
Unit
5 V Regulator
Output Voltage
V
REG
T
J
= 25C, I
REG
= 1 mA
4.95
5.00
5.05
V
Line Regulation
PSRR
12 2 V
CC
2 25 V
2
10
mV
Load Regulation
1 2 I
REG
2 20 mA
2
10
mV
Temperature Stability
1
TC
REG
0.2
0.4
mV/C
Total Output Variation
1
Line, load, temperature
4.85
5.15
V
Long-term Stability
1
Over 1,000 hrs at 25C
5
25
mV
Output Noise Voltage
V
NOISE
10 Hz 2 f 2 100 kHz, T
J
= 25C
50
μV
Short Circuit Current
I
SC
30
100
180
mA
2.5 V Internal Reference
Nominal Voltage
V
FB
T = 25C; I
REG
= 1 mA
2.475
2.500
2.525
V
Line Regulation
PSRR
12 V 2 V
CC
2 25 V
2
5
mV
Load Regulation
1 2 I
REG
2 20 mA
2
5
mV
Temperature Stability
1
TC
VFB
0.1
0.2
mV/C
Total Output Variation
1
Line, load, temperature
2.450
2.500
2.550
V
Long-term Stability
1
Over 1,000 hrs at 125C
2
12
mV
Oscillator
Initial Accuracy
f
OSC
T
J
= 25C
47
52
57
kHz
Voltage Stability
12 V 2 V
CC
2 25 V
0.2
1
%
Temperature Stability
1
TC
f
T
MIN
2 T
J
2 T
MAX
5
%
Amplitude
f
OSC
V
RT/CT
peak-to-peak
1.6
V
Upper Trip Point
V
H
2.9
V
Lower Trip Point
V
L
1.3
V
Sync Threshold
V
SYNC
400
600
800
mV
Discharge Current
I
D
7.5
8.7
9.5
mA
Duty Cycle Limit
R
T
= 680 , C
T
= 5.3 nF, T
J
= 25C
46
50
52
%
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AS384R5FLF | 制造商:TT Electronics / IRC 功能描述:AS384R5FLF |
| AS384X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current Mode Controller |
| AS385 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Reference |
| AS385-1.23 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Reference |
| AS385-2.5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Reference |
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