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CS51221ED16 Fiches technique(PDF) 3 Page - Cherry Semiconductor Corporation

No de pièce CS51221ED16
Description  Enhanced Voltage Mode PWM Controller
Download  12 Pages
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Fabricant  CHERRY [Cherry Semiconductor Corporation]
Site Internet  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS51221ED16 Fiches technique(HTML) 3 Page - Cherry Semiconductor Corporation

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3
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Electrical Characteristics: -40˚C < TA < 85˚C; -40˚C < TJ < 125˚C; 3V < VC < 15V; 4.7V < VCC < 15V; Rt=12K, Ct=390pF
Unless otherwise stated.
s
Start/Stop Voltages
Start Threshold
4.4
4.6
4.7
V
Stop Threshold
3.2
3.8
4.1
V
Hysteresis
Start - Stop
400
850
1400
mV
ICC @ Startup
VCC < UVL Start Threshold
38
75
µA
s
Supply Current
ICC Operating
9.5
14
mA
IC Operating
1nF Load on GATE
12
18
mA
IC Operating
No switching
2
4
mA
s
Reference Voltage
Total Accuracy
0mA < IREF < 2mA
3.2
3.3
3.4
V
Line Regulation
6
20
mV
Load Regulation
0mA < IREF < 2mA
6
15
mV
Noise Voltage
10Hz < F < 10kHz (Note 1)
50
µV
Op Life Shift
T = 1000Hrs. (Note 1)
4
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
40
100
mA
s
Error Amp
Reference Voltage
VFB = COMP
1.234
1.263
1.285
V
VFB Input Current
VFB = 1.2V
1.3
2
µA
Open Loop Gain
(Note 1)
60
dB
Unity Gain Bandwidth
(Note 1)
1.5
MHz
COMP Sink Current
COMP = 1.4V, VFB = 1.45V
3
12
32
mA
COMP Source Current
COMP = 1.4V, VFB = 1.15V
1
1.6
2.0
mA
COMP High Voltage
VFB = 1.15V
2.8
3.1
3.4
V
COMP Low Voltage
VFB = 1.45V
75
125
300
mV
PSRR
Freq = 120Hz (Note 1)
60
85
dB
SS Clamp, VCOMP
SS = 1.4V, VFB = 0V, ISET = 2V
1.3
1.4
1.5
V
COMP Max Clamp
Note 1
1.7
1.8
1.9
V


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