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參數(shù)資料
| 型號： | CS52843 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | Current Mode PWM Control Circuit |
| 中文描述： | 電流模式PWM控制電路 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 147K |
| 代理商： | CS52843 |
2
Electrical Characteristics: -40
≤
T
A
≤
85
C; V
= 15V (Note 1); R
= 680
; C
= .022μF for triangle mode,
R
T
= 10k
; C
T
= 3.3nF sawtooth mode unless otherwise stated.
C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I
Reference Section
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Output Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
T
J
= 25
C, I
REF
= 1mA
12
≤
V
CC
≤
25V
1
≤
I
RE F
≤
20mA
(Note 1)
Line, Load, Temp. (Note 1)
10Hz
≤
f
≤
10kHz, T
J
= 25
C (Note 1)
T
A
= 125
C, 1000 Hrs. (Note 1)
T
A
= 25
C
4.90
5.00
6
6
0.2
5.10
20
25
0.4
5.18
V
mV
mV
mV/
C
V
μV
mV
mA
4.82
50
5
-100
25
-180
-30
I
Oscillator Section
Initial Accuracy
Sawtooth Mode, T
J
= 25
C (Note 1)
Triangle Mode, T
J
= 25
C
12
≤
V
CC
≤
25V
Sawtooth Mode T
MIN
≤
T
A
≤
T
MAX
Triangle Mode T
MIN
≤
T
A
≤
T
MAX
(Note 1)
V
OSC
(peak to peak)
T
J
= 25
C
T
MIN
≤
T
A
≤
T
MAX
47
44
52
52
0.2
5
8
1.7
8.3
57
60
1.0
kHz
kHz
%
%
%
V
mA
mA
Voltage Stability
Temperature Stability
Amplitude
Discharge Current
7.3
6.8
9.3
9.8
I
Error Amp Section
Input Voltage
Input Bias Current
A
VOL
Unity Gain Bandwidth
PSRR
Output Sink Current
Output Source Current
V
OUT
HIGH
V
OUT
LOW
V
COMP
= 2.5V
V
FB
= 0V
2
≤
V
OUT
≤
4V
(Note 1)
12
≤
V
CC
≤
25V
V
FB
= 2.7V, V
COMP
= 1.1V
V
FB
= 2.3V, V
COMP
= 5V
V
FB
= 2.3V, R
L
= 15k
to Gnd
V
FB
= 2.7V, R
L
= 15k
to V
REF
2.42
2.50
-0.3
90
1.0
70
6
-0.8
6
0.7
2.58
-2.0
V
μA
dB
MHz
dB
mA
mA
V
V
65
0.7
60
2
-0.5
5
1.1
I
Current Sense Section
Gain
Maximum Input Signal
PSRR
Input Bias Current
Delay to Output
(Notes 2 & 3)
V
COMP
= 5V (Note 2)
12
≤
V
CC
≤
25V (Note 2)
V
Sense
=0V
T
J
=25
C (Note 1)
2.85
0.9
3.00
1.0
70
-2
150
3.15
1.1
V/V
V
dB
μA
ns
-10
300
I
Output Section
Output Low Level
I
SINK
= 20mA
I
SINK
= 200mA
I
SOURCE
= 20mA
I
SOURCE
= 200mA
0.1
1.5
13.5
13.5
0.4
2.2
V
V
V
V
Output High Level
13.0
12.0
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