參數(shù)資料
型號: UTC3521
廠商: 友順科技股份有限公司
英文描述: CMOS IC
中文描述: CMOS集成電路
文件頁數(shù): 1/4頁
文件大小: 48K
代理商: UTC3521
UTC 3521
CMOS IC
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
www.unisonic.com.tw
QW-R502-034,A
PWM CONTROLLER WITH SUPERVISORY
CIRCUIT FOR SWITCHING POWER
SUPPLY
DESCRIPTION
UTC
3521
PWM controller is designed for switching mode
power supply for PCs etc. It provides all the functions similar
to combinations of industrial 494 plus 3510 circuits.
FEATURES
* Over-voltage protection for 3.3V, 5V and 12V with delay
* Under-voltage detection for 3.3V, 5V and 12V with delay
* Remote ON/OFF function
* Power good circuitry for PCs.
DIP-16
*Pb-free plating product number: 3521L
PIN CONFIGURATION
V33
V5
V12
PT
GND
CT
C1
C2
VADJ
OPNEGIN
OPOUT
V
CC
DET
PG
TPG
REM
UTC 3521
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN NAME
V33
V5
V12
PT
GND
CT
C1
C2
REM
TPG
PG
DET
VCC
OPOUT
OPNEGIN
VADJ
TYPE
I
I
I
I
P
O
O
I
O
I
P
O
I
I
FUNCTIONS
OVP/UVP INPUT FOR 3.3V
OVP/UVP INPUT FOR 5V
OVP/UVP INPUT FOR 12V
ADDITIONAL OVP PROTECTION
GROUND
CAP FOR OSCIILATION FREQUENCY
OUTPUT 1
OUTPUT 2
REMOTE ON/OFF PIN.
POWER GOOD DELAY TIME SETTING
POWER GOOD SIGNAL OUT.
POWER GOOD SIGNAL DETECTION INPUT
SUPPLY VOLTAGE FOR IC
OP AMP OUTPUT
OP AMP NEGATIVE INPUT
VOLTAGE ADJUST PIN
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