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參數(shù)資料
| 型號： | CS52843ED8 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 240K |
| 代理商： | CS52843ED8 |
CS52843
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(
40
°
C
≤
T
A
≤
85
°
C; V
CC
= 15 V (Note 2.); R
T
= 680
Ω;
C
T
= 0.022
μ
F for triangle
mode, R
T
= 10 k
Ω;
C
T
= 3.3 nF sawtooth mode; unless otherwise specified.)
Parameter
Test Conditions
Min
Typ
Max
Unit
Reference Section
Output Voltage
T
J
= 25
°
C, I
REF
= 1.0 mA
4.9
5.0
5.1
V
Line Regulation
12
≤
V
CC
≤
25 V
6.0
20
mV
Load Regulation
1.0
≤
I
REF
≤
20 mA
6.0
25
mV
Temperature Stability
Note 2.
0.2
0.4
mV/
°
C
Total Output Variation
Line, Load, Temp. Note 2.
4.82
5.18
V
Output Noise Voltage
10 Hz
≤
f
≤
10 kHz, T
J
= 25
°
C, Note 2.
50
μ
V
Long Term Stability
T
A
= 125
°
C, 1000 Hrs. Note 2.
5.0
25
mV
Output Short Circuit
T
A
= 25
°
C
30
100
180
mA
Oscillator Section
Initial Accuracy
Sawtooth Mode, T
J
= 25
°
C, Note 2.
Triangle Mode, T
J
= 25
°
C
47
44
52
52
57
60
kHz
kHz
Voltage Stability
12
≤
V
CC
≤
25 V
0.2
1.0
%
Temperature Stability
Sawtooth Mode T
MIN
≤
T
A
≤
T
MAX
Triangle Mode T
MIN
≤
T
A
≤
T
MAX,
Note 2.
5.0
8.0
%
%
Amplitude
V
OSC
(peak to peak)
1.7
V
Discharge Current
T
J
= 25
°
C
T
MIN
≤
T
A
≤
T
MAX
7.3
6.8
8.3
9.3
9.8
mA
mA
Error Amp Section
Input Voltage
V
COMP
= 2.5 V
2.42
2.50
2.58
V
Input Bias Current
V
FB
= 0 V
0.3
2.0
μ
A
A
VOL
2.0
≤
V
OUT
≤
4.0 V
65
90
dB
Unity Gain Bandwidth
Note 2.
0.7
1.0
MHz
PSRR
12
≤
V
CC
≤
25 V
60
70
dB
Output Sink Current
V
FB
= 2.7 V, V
COMP
= 1.1 V
2.0
6.0
mA
Output Source Current
V
FB
= 2.3 V, V
COMP
= 5.0 V
0.5
0.8
mA
V
OUT
HIGH
V
FB
= 2.3 V, R
L
= 15 k
Ω
to GND
5.0
6.0
V
V
OUT
LOW
V
FB
= 2.7 V, R
L
= 15 k
Ω
to V
REF
0.7
1.1
V
Current Sense Section
Gain
Notes 3 & 4.
2.85
3.0
3.15
V/V
Maximum Input Signal
V
COMP
= 5.0 V, Note 3.
0.9
1.0
1.1
V
PSRR
12
≤
V
CC
≤
25 V, Note 3.
70
dB
Input Bias Current
V
SENSE
= 0 V
2.0
10
μ
A
Delay to Output
T
J
= 25
°
C, Note 2.
150
300
ns
2. These parameters, although guaranteed, are not 100% tested in production.
3. Parameter measured at a trip point of latch with V
FB
= 0.
4. Gain defined as: A
VCOMP
VSENSE
0.8 V
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