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3521 데이터시트(PDF) 4 Page - Unisonic Technologies

부품명 3521
상세설명  PWM CONTROLLER WITH SUPERVISORY CIRCUIT FOR SWITCHING POWER SUPPLY
PDF  5 Pages
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제조업체  UTC [Unisonic Technologies]
홈페이지  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

3521 데이터시트(HTML) 4 Page - Unisonic Technologies

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3521
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
4 of 5
www.unisonic.com.tw
QW-R502-034,B
ABSOLUTE MAXIMUM RATINGS (VCC=5.5V, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
5.5
V
Drain Output Voltage
VCC1, VCC25.5
V
Drain Output Current
ICC1, ICC2
200
mA
Power Dissipation
PD
200
mW
Operating Temperature
TOPR
-10 ~ +70
℃
Storage Temperature
TSTG
-65 ~ +150
℃
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (Ta=25℃, VCC =5V, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
DEAD TIME CONTROL SECTION
ZERO DUTY CYCLE
3.0
3.3
Input Threshold Voltage
VI(THR)
MAX. DUTY CYCLE
0.1
V
ERROR AMP SECTION
Opneg Bias Voltage
OPNEG OPEN
2.38
2.45
2.52
V
Close Loop Voltage Gain
GVC
0.5V ~ 3.5V
65
dB
Cross Over Point
0dB
320
KHz
OUTPUT SECTION
Output Saturation Voltage
VDSSAT
ID=200mA
1.1
1.3
V
Drain Off-State Current
ID(OFF)
VCC=VD=VS=0V
2
10
µA
Rising Time
tR
100
200
ns
Falling Time
tF
50
200
ns
PROTECTION SECTION
V33
3.8
4.1
4.3
V5
5.8
6.2
6.6
V12
4.41
4.64
4.90
Over Voltage Protection (OVP)
PT
1.2
1.25
1.3
V
V33
1.78
1.98
2.18
V5
2.70
3.00
3.30
Under Voltage Protection (UVP)
V12
2.11
2.37
2.63
V
UVP Disable Voltage
PT
0.55
0.62
0.68
V
UVP Delay Time
tDLY
100
250
500
ms
REMOTE ON/OFF SECTION
REM High Input Voltage
VIH
2.0
V
REM Low Input Voltage
VIL
0.8
V
REM Pull High Voltage
VH(PULL)
2.0
5.25
V
REM Delay Time
tDLY
30
36
42
ms
REM Off Delay Time
tDLY (OFF)
3.5
4.5
5.5
ms
POWER GOOD SECTION
Detecting Input Voltage
VI(DET)
0.55
0.62
0.68
V
Output Saturation Voltage
VO(SAT)
IPG=10mA
0.2
0.4
V
Charging Current For TPG
ICHAR
30
µA
PG Output Pull-up Resistor
RO(PULL-UP))
4
KΩ
PG Output Load Resistor
RO(LOAD)
0.5
1
2
KΩ
PG Delay Time
tDLY
C=2.2µF
100
250
500
ms
TOTAL DEVICE
Standby Supply Current
ICC
10
20
mA
OSCILLATION SECTION
Oscillation Frequency
Fosc
CT=2200P
50
60
KHz
Frequency Change With TEMP.
Fosc/T
CT=2200P
2
%



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