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CS51021 データシート(Datasheet) 2 Page - Cherry Semiconductor Corporation

部品番号. CS51021
部品情報  Enhanced Current Mode PWM Controller
ダウンロード  10 Pages
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メーカー  CHERRY [Cherry Semiconductor Corporation]
ホームページ  http://www.cherrycorp.com/
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 2 page
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Power Supply Voltage, VCC ............................................................................................................................................-0.3V, 20V
Driver Supply Voltage, VC ..............................................................................................................................................-0.3V, 20V
SYNC, SLEEP, RTCT, SOFT START, VFB, SLOPE, ISENSE, UV, OV, ISET (Logic Pins).......................................-0.25V to VREF
Peak GATE Output Current.........................................................................................................................................................1A
Steady State Output Current..................................................................................................................................................± 0.2A
Operating Junction Temperature, TJ..................................................................................................................................... 150°C
Storage Temperature Range, TS...................................................................................................................................-65 to 150°C
ESD (Human Body Model).........................................................................................................................................................2kV
Lead Temperature Soldering: Reflow (SMD styles only).............................................60 sec. max above 183°C, 230°C peak
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
2
Absolute Maximum Ratings
s
Under Voltage Lockout
START Threshold (CS51021/22)
7.95
8.25
8.8
V
START Threshold (CS51023/24)
12.4
13
13.4
V
STOP Threshold
7.4
7.7
8.2
V
Hysteresis (CS51021/22)
0.50
0.75
1.00
V
Hysteresis (CS51023/24)
4
5
6
V
ICC @ Startup (CS51021/22)
VCC < UVSTART Threshold
40
75
µA
ICC @ Startup (CS51023/24)
VCC < UVSTART Threshold
45
75
µA
ICC Operating (CS51021/23)
7
9
mA
ICC Operating (CS51022/24)
6
8
mA
IC Operating
Includes 1nF Load
7
12
mA
s
Voltage Reference
Initial Accuracy
TA = 25C, IREF = 2mA, VCC = 14V (Note1) 4.95
5
5.05
V
Total Accuracy
1mA<IREF<10mA
4.9
5
5.15
V
Line Regulation
8.2V < VCC < 18V, IREF = 2mA
6
20
mV
Load Regulation
1mA < IREF < 10mA
6
15
mV
NOISE Voltage
(Note 1)
50
uV
OP Life Shift
T=1000 Hours (Note 1)
4
20
mV
FAULT Voltage
Force VREF
.92 × VREF .95 × VREF .97 × VREF
V
OK Voltage
Force VREF
.94 × VREF .96 × VREF .98 × VREF
V
OK Hysteresis
Force VREF
50
105
160
mV
Current Limit
Force VREF
-20
mA
s
Error Amplifier
Initial Accuracy
TA=25°C, IREF = 2mA, VCC = 14V,
2.465
2.515
2.565
V
VFB = COMP (Note 1)
Reference Voltage
VFB = COMP
2.440
2.515
2.590
V
VFB Leakage Current
VFB = 0V
-0.2
-2
µA
Open Loop Gain
1.4V < COMP < 4V (Note 1)
60
90
dB
Unity Gain Bandwidth
(Note 1)
1.5
2.5
MHz
COMP Sink Current
COMP = 1.5V, VFB = 2.7V
2
6
mA
COMP Source Current
COMP = 1.5V, VFB = 2.3V
-0.2
-0.5
mA
Electrical Characteristics: Unless otherwise stated, specifications apply for -40°C < TA < 85°C, -40°C < TJ < 150°C,
3V < VC < 20V, 8.2V < VCC < 20V, RT = 12kΩ, CT = 390pF.




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