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參數(shù)資料
| 型號： | UC3841DWTR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| 中文描述： | 5.0放大器正電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 576K |
| 代理商： | UC3841DWTR |
4
PARAMETER
TEST CONDITION
UC1842/3/4/5
UC2842/3/4/5
MIN
TYP
UC3842/3/4/5
UNITS
MAX
MIN
TYP
MAX
Output Section
Output Low Level
I
SINK
= 20mA
I
SINK
= 200mA
I
SOURCE
= 20mA
I
SOURCE
= 200mA
T
J
= 25°C, C
L
= 1nF (Note 2)
T
J
= 25°C, C
L
= 1nF (Note 2)
0.1
1.5
13.5
13.5
50
50
0.4
2.2
0.1
1.5
13.5
13.5
50
50
0.4
2.2
V
V
V
V
ns
ns
Output High Level
13
12
13
12
Rise Time
Fall Time
Under-voltage Lockout Section
Start Threshold
150
150
150
150
X842/4
X843/5
X842/4
X843/5
15
7.8
9
7.0
16
8.4
10
7.6
17
9.0
11
8.2
14.5
7.8
8.5
7.0
16
8.4
10
7.6
17.5
9.0
11.5
8.2
V
V
V
V
Min. Operating Voltage
After Turn On
PWM Section
Maximum Duty Cycle
X842/3
X844/5
95
46
97
48
100
50
0
95
47
97
48
100
50
0
%
%
%
Minimum Duty Cycle
Total Standby Current
Start-Up Current
Operating Supply Current
V
CC
Zener Voltage
Note 2:
Note 3:
.
Note 4:
0.5
11
34
1
0.5
11
34
1
mA
mA
V
V
PIN 2
= V
PIN 3
= 0V
I
CC
= 25mA
17
17
30
30
These parameters, although guaranteed, are not 100% tested in production.
Parameter measured at trip point of latch with V
PIN 2
= 0
Gain defined as: A
VPIN
VPIN
VPIN
V
=
≤
≤
1
3
0
3
08
.
;
.
Note 5:
Note 6:
Adjust V
CC
above the start threshold before setting at 15V
Output frequency equals oscillator frequency for the UC1842 and UC1843.
Output frequency is one half oscillator frequency for the UC1844 and UC1845.
UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
ELECTRICAL CHARACTERISTICS:
Unless otherwise stated, these specifications apply for
55°C
≤
T
A
≤
125°C for the
UC184X;
40°C
≤
T
A
≤
85°C for the UC284X; 0
°
C
≤
T
A
≤
70°C for the 384X; V
CC
=
15V (Note 5); R
T
= 10k; C
T
= 3.3nF, T
A
=T
J.
ERROR AMP CONFIGURATION
Error Amp can Source or Sink up to 0.5mA
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