CS51021 Ver la hoja de datos (PDF) - Cherry semiconductor
Número de pieza
componentes Descripción
Fabricante
CS51021 Datasheet PDF : 9 Pages
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Absolute Maximum Ratings
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
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.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s Under Voltage Lockout
START Threshold (CS51021/22)
START Threshold (CS51023/24)
STOP Threshold
Hysteresis (CS51021/22)
Hysteresis (CS51023/24)
ICC @ Startup (CS51021/22)
ICC @ Startup (CS51023/24)
ICC Operating (CS51021/23)
ICC Operating (CS51022/24)
IC Operating
VCC < UVSTART Threshold
VCC < UVSTART Threshold
Includes 1nF Load
7.95
8.25
12.4
13
7.4
7.7
0.50
0.75
4
5
40
45
7
6
7
8.8
V
13.4
V
8.2
V
1.00
V
6
V
75
µA
75
µA
9
mA
8
mA
12
mA
s Voltage Reference
Initial Accuracy
Total Accuracy
Line Regulation
Load Regulation
NOISE Voltage
OP Life Shift
FAULT Voltage
OK Voltage
OK Hysteresis
Current Limit
TA = 25C, IREF = 2mA, VCC = 14V (Note1) 4.95
5
5.05
V
1mA<IREF<10mA
4.9
5
5.15
V
8.2V < VCC < 18V, IREF = 2mA
6
20
mV
1mA < IREF < 10mA
6
15
mV
(Note 1)
50
uV
T=1000 Hours (Note 1)
4
20
mV
Force VREF
.92 × VREF .95 × VREF .97 × VREF V
Force VREF
.94 × VREF .96 × VREF .98 × VREF V
Force VREF
Force VREF
50
105
-20
160
mV
mA
s Error Amplifier
Initial Accuracy
Reference Voltage
VFB Leakage Current
Open Loop Gain
Unity Gain Bandwidth
COMP Sink Current
COMP Source Current
TA=25°C, IREF = 2mA, VCC = 14V,
VFB = COMP (Note 1)
VFB = COMP
VFB = 0V
1.4V < COMP < 4V (Note 1)
(Note 1)
COMP = 1.5V, VFB = 2.7V
COMP = 1.5V, VFB = 2.3V
2
2.465
2.440
60
1.5
2
-0.2
2.515
2.515
-0.2
90
2.5
6
-0.5
2.565
V
2.590
-2
V
µA
dB
MHz
mA
mA
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