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CS51221EDR16 Datenblatt(PDF) 4 Page - ON Semiconductor

Teilenummer CS51221EDR16
Bauteilbeschribung  Enhanced Voltage Mode PWM Controller
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Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CS51221EDR16 Datenblatt(HTML) 4 Page - ON Semiconductor

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CS51221
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4
ELECTRICAL CHARACTERISTICS (−40
°C < TA < 85°C; −40°C < TJ < 125°C; 3.0 V < VC < 15 V; 4.7 V < VCC < 15 V;
RT = 12 k; CT = 390 pF; unless otherwise specified.)
Characteristic
Unit
Max
Typ
Min
Test Conditions
Reference Voltage
Total Accuracy
0 mA < IREF < 2.0 mA
3.2
3.3
3.4
V
Line Regulation
6.0
20
mV
Load Regulation
0 mA < IREF < 2.0 mA
6.0
15
mV
Noise Voltage
10 Hz < F < 10 kHz. Note 2
50
mV
Op Life Shift
T = 1000 Hrs. Note 2
4.0
20
mV
Fault Voltage
2.8
2.95
3.1
V
VREF(OK) Voltage
2.9
3.05
3.2
V
VREF(OK) Hysteresis
30
100
150
mV
Current Limit
2.0
40
100
mA
Error Amp
Reference Voltage
VFB = COMP
1.234
1.263
1.285
V
VFB Input Current
VFB = 1.2 V
1.3
2.0
mA
Open Loop Gain
Note 2
60
dB
Unity Gain Bandwidth
Note 2
1.5
MHz
COMP Sink Current
COMP = 1.4 V, VFB = 1.45 V
3.0
12
32
mA
COMP Source Current
COMP = 1.4 V, VFB = 1.15 V
1.0
1.6
2.0
mA
COMP High Voltage
VFB = 1.15 V
2.8
3.1
3.4
V
COMP Low Voltage
VFB = 1.45 V
75
125
300
mV
PSRR
Freq = 120 Hz. Note 2
60
85
dB
SS Clamp, VCOMP
SS = 1.4 V, VFB = 0 V, ISET = 2.0 V
1.3
1.4
1.5
V
COMP Max Clamp
Note 2
1.7
1.8
1.9
V
Oscillator
Frequency Accuracy
260
273
320
kHz
Voltage Stability
1.0
2.0
%
Temperature Stability
−40
°C < TJ < 125°C. (Note 2)
8.0
%
Max Frequency
Note 2
1.0
MHz
Duty Cycle
80
85
90
%
Peak Voltage
Note 2
1.94
2.0
2.06
V
Valley Clamp Voltage
0.9
0.95
1.0
V
Valley Voltage
Note 2
0.85
1.0
1.15
V
Discharge Current
0.85
1.0
1.15
mA
Synchronization
Input Threshold
0.9
1.4
1.8
V
Output Pulse Width
200
320
450
ns
Output High Voltage
100
mA Load
2.1
2.5
2.8
V
Input Resistance
35
70
140
k
W
SYNC to Drive Delay
Time from SYNC to GATE Shutdown
100
140
180
ns
Output Drive Current
RSYNC = 1.0 W
1.0
1.5
2.25
mA
2. Guaranteed by design, not 100% tested in production.


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