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參數(shù)資料
| 型號： | CS3842AGDR14 |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, PDSO14 |
| 封裝： | SO-14 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 156K |
| 代理商： | CS3842AGDR14 |
2
Electrical Characteristics: -25° ≤ TA ≤ 85C for CS2842A/2843A, 0° ≤ TA ≤ 70C for CS3842A/3843A. VCC = 15V (Note 1);
RT = 680, CT = .022F for triangular mode, RT = 10k, CT = 3.3nF for sawtooth mode (see Figure 3), unless otherwise stated.
CS2842A/CS2843A
CS3842A/CS3843A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX UNITS
CS2842A/3843A
SERIES
s
Reference Section
Output Voltage
TJ = 25C, IOUT = 1mA
4.95
5.00
5.05
4.90
5.00
5.10 V
Line Regulation
12 ≤ VIN ≤ 25V
6
20
6
20
mV
Load Regulation
1 ≤ IOUT ≤ 20mA
6
25
6
25
mV
Temperature Stability
(Note 2)
0.2
0.4
0.2
0.4
mV/C
Total Output Variation
Line, Load, Temp. (Note 2)
4.90
5.10
4.82
5.18 V
Output Noise Voltage
10Hz ≤ f ≤ 10kHz, TJ = 25C (Note 2)
50
V
Long Term Stability
TA = 125C, 1kHrs. (Note 2)
5
25
5
25
mV
Output Short Circuit
TA = 25C
-30
-100
-180
-30
-100
-180 mA
s
Oscillator Section
Initial Accuracy
Sawtooth Mode (see Fig. 3), TJ = 25C 475257475257
kHz
Triangular Mode (see Fig. 3), TJ = 25C 475257445260
kHz
Voltage Stability
12 ≤ VCC ≤ 25V
0.2
1.0
0.2
1.0
%
Temp. Stability
Sawtooth Mode TMIN ≤ TA ≤ TMAX
(Note 2)
5
%
Triangular Mode TMIN ≤ TA ≤ TMAX
(Note 2)
8
%
Amplitude
OSC peak to peak
1.7
V
Discharge Current
TJ = 25C
7.5
8.3
9.3
7.5
8.3
9.3
mA
TMIN ≤ TA ≤ TMAX
7.2
9.5
7.2
9.5
mA
s
Error Amp Section
Input Voltage
VCOMP = 2.5V
2.45
2.50
2.55
2.42
2.50
2.58 V
Input Bias Current
VFB = 0
-0.3
-1.0
-0.3
-2.0 A
AVOL
2 ≤ VOUT ≤ 4V
65
90
65
90
dB
Unity Gain Bandwidth
(Note 2)
0.7
1.0
0.7
1.0
MHz
PSRR
12 ≤ VCC ≤ 25V
60
70
60
70
dB
Output Sink Current
VFB = 2.7V, VCOMP = 1.1V
2
6
2
6
mA
Output Source Current
VFB = 2.3V, VCOMP = 5V
-0.5
-0.8
-0.5
-0.8
mA
VOUT High
VFB = 2.3V, RL = 15k to ground
5
6
5
6
V
VOUT Low
VFB = 2.7V, RL = 15k to VREF
0.7
1.1
0.7
1.1
V
s
Current Sense Section
Gain
(Notes 3 & 4)
2.85
3.00
3.15
2.85
3.00
3.15 V/V
Maximum Input Signal
VCOMP = 5V (Note 3)
0.9
1.0
1.1
0.9
1.0
1.1
V
PSRR
12 ≤ VCC ≤ 25V (Note 3)
70
dB
Input Bias Current
VSense = 0
-2
-10
-2
-10
A
Delay to Output
TJ = 25C (Note 2)
150
300
150
300
ns
s
Output Section
Output Low Level
ISINK = 20mA
0.1
0.4
0.1
0.4
V
ISINK = 200mA
1.5
2.2
1.5
2.2
V
Output High Level
ISOURCE = 20mA
13.0
13.5
13.0
13.5
V
ISOURCE = 200mA
12.0
13.5
12.0
13.5
V
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