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3521 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 3521
기능 PWM CONTROLLER
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3521 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
3521
PWM CONTROLLER WITH
SUPERVISORY CIRCUIT FOR
SWITCHING POWER SUPPLY
CMOS IC
„ DESCRIPTION
UTC 3521 PWM controller is designed for switching mode power
supply for PCs. It provides all the functions necessary to monitor and
control the output of the power supply. Remote ON/OFF control,
power good circuitry, some protection features against over-voltage
and over-power are implements.
„ FEATURES
* Over-Voltage Protection for 3.3V, 5V and 12V
* Under-Voltage Detection for 3.3V, 5V and 12V
* Over-Power Protection
* Remote ON/OFF Function
* Power Good Circuitry
* Delay Time for PG Signal
* Delay Time for Over-Voltage and Under-Voltage Protection
* On-Chip Oscillator and Error Amplifier
DIP-16
„ ORDERING INFORMATION
Ordering Number
Lead Free Plating
Halogen Free
3521L-D16-T
3521G-D16-T
Package
DIP-16
Packing
Tube
3521L-D16-T
(1)Packing Type
(2)Package Type
(3)Lead Free
(1) T: Tube
(2) D16: DIP-16
(3) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-034.D




3521 pdf, 반도체, 판매, 대치품
3521
CMOS IC
„ ABSOLUTE MAXIMUM RATINGS (VCC=5.5V, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC 5.5 V
Drain Output Voltage
VCC1, VCC2
5.5
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
DEAD TIME CONTROL SECTION
Input Threshold Voltage
VI(THR)
ZERO DUTY CYCLE
MAX. DUTY CYCLE
3.0
0.1
ERROR AMP SECTION
Opneg Bias Voltage
Close Loop Voltage Gain
Cross Over Point
OPNEG OPEN
GVC 0.5V ~ 3.5V
0dB
2.35 2.45
65
320
OUTPUT SECTION
Output Saturation Voltage
Drain Off-State Current
Rising Time
Falling Time
PROTECTION SECTION
Over Voltage Protection (OVP)
Under Voltage Protection (UVP)
UVP Disable Voltage
UVP Delay Time
VDSSAT
ID(OFF)
tR
tF
ID=200mA
VCC=VD=VS=0V
R PULL-UP=1 K
R PULL-UP=1 K
V33
V5
V12
PT
V33
V5
V12
PT
tDLY
1.1
2
100
50
3.8 4.1
5.8 6.2
4.38 4.64
1.2 1.25
1.78 1.98
2.70 3.00
2.11 2.37
0.54 0.62
100 250
REMOTE ON/OFF SECTION
REM High Input Voltage
REM Low Input Voltage
REM Pull High Voltage
REM Delay Time
REM Off Delay Time
VIH
VIL
VH(PULL)
tDLY
tDLY (OFF)
2.0
2.0
30 36
3.5 4.5
POWER GOOD SECTION
Detecting Input Voltage
Output Saturation Voltage
Charging Current For TPG
PG Output Pull-up Resistor
PG Output Load Resistor
PG Delay Time
VI(DET)
VO(SAT) IPG=10mA
ICHAR
RO(PULL-UP))
RO(LOAD)
tDLY C=2.2μF
0.54 0.62
0.2
30
5
0.5 1
100 250
TOTAL DEVICE
Standby Supply Current
OSCILLATION SECTION
Oscillation Frequency
Frequency Change With TEMP.
ICC
Fosc CT=2200P
Fosc/T CT=2200P
10
50
2
MAX UNIT
3.5 V
2.55 V
dB
KHz
1.3 V
10 μA
200 ns
200 ns
4.4
6.6
4.90
V
1.3
2.18
3.30 V
2.63
0.70 V
500 ms
V
0.8 V
5.25 V
42 ms
5.5 ms
0.70 V
0.4 V
μA
K
2 K
500 ms
20 mA
70 KHz
%
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R502-034. D

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관련 데이터시트

부품번호상세설명 및 기능제조사
3521

PWM CONTROLLER

Unisonic Technologies
Unisonic Technologies
3521

PWM CONTROLLER

Unisonic Technologies
Unisonic Technologies

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