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CS52843ED14 Datenblatt(PDF) 3 Page - ON Semiconductor

Teilenummer CS52843ED14
Bauteilbeschribung  Current Mode PWM Control Circuit
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Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

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CS52843
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ELECTRICAL CHARACTERISTICS (−40°C ≤ TA ≤ 85°C; VCC = 15 V (Note 2.); RT = 680 Ω; CT = 0.022 μF for triangle
mode, RT = 10 kΩ; CT = 3.3 nF sawtooth mode; unless otherwise specified.)
Parameter
Test Conditions
Min
Typ
Max
Unit
Reference Section
Output Voltage
TJ = 25°C, IREF = 1.0 mA
4.9
5.0
5.1
V
Line Regulation
12 ≤ VCC ≤ 25 V
6.0
20
mV
Load Regulation
1.0 ≤ IREF ≤ 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, TJ = 25°C, Note 2.
50
μV
Long Term Stability
TA = 125°C, 1000 Hrs. Note 2.
5.0
25
mV
Output Short Circuit
TA = 25°C
−30
−100
−180
mA
Oscillator Section
Initial Accuracy
Sawtooth Mode, TJ = 25°C, Note 2.
Triangle Mode, TJ = 25°C
47
44
52
52
57
60
kHz
kHz
Voltage Stability
12 ≤ VCC ≤ 25 V
0.2
1.0
%
Temperature Stability
Sawtooth Mode TMIN ≤ TA ≤ TMAX
Triangle Mode TMIN ≤ TA ≤ TMAX, Note 2.
5.0
8.0
%
%
Amplitude
VOSC (peak to peak)
1.7
V
Discharge Current
TJ = 25°C
TMIN ≤ TA ≤ TMAX
7.3
6.8
8.3
9.3
9.8
mA
mA
Error Amp Section
Input Voltage
VCOMP = 2.5 V
2.42
2.50
2.58
V
Input Bias Current
VFB = 0 V
−0.3
−2.0
μA
AVOL
2.0 ≤ VOUT ≤ 4.0 V
65
90
dB
Unity Gain Bandwidth
Note 2.
0.7
1.0
MHz
PSRR
12 ≤ VCC ≤ 25 V
60
70
dB
Output Sink Current
VFB = 2.7 V, VCOMP = 1.1 V
2.0
6.0
mA
Output Source Current
VFB = 2.3 V, VCOMP = 5.0 V
−0.5
−0.8
mA
VOUT HIGH
VFB = 2.3 V, RL = 15 kΩ to GND
5.0
6.0
V
VOUT LOW
VFB = 2.7 V, RL = 15 kΩ to VREF
0.7
1.1
V
Current Sense Section
Gain
Notes 3 & 4.
2.85
3.0
3.15
V/V
Maximum Input Signal
VCOMP = 5.0 V, Note 3.
0.9
1.0
1.1
V
PSRR
12 ≤ VCC ≤ 25 V, Note 3.
70
dB
Input Bias Current
VSENSE = 0 V
−2.0
−10
μA
Delay to Output
TJ = 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 VFB = 0.
4. Gain defined as: A
+ D
VCOMP
DVSENSE
;0 v VSENSE v 0.8 V


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