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STR3A152 bảng dữ liệu(PDF) 1 Page - Allegro MicroSystems

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Giải thích chi tiết về linh kiện  PWM Off-Line Switching Regulator ICs
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nhà sản xuất  ALLEGRO [Allegro MicroSystems]
Trang chủ  http://www.allegromicro.com
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STR3A152 bảng dữ liệu(HTML) 1 Page - Allegro MicroSystems

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SANKEN ELECTRIC CO., LTD.
Description
STR3A100 series are power ICs for switching power supplies,
incorporating a power MOSFET and a current mode PWM
controller IC in one package.
Including a startup circuit and a standby function in the
controller, the product achieves low power consumption, low
standby power, and high cost-effectiveness in power supply
systems, while reducing external components.
The products are provided in an industry standard DIP8
package.
Features and Benefits
• Current mode PWM control
• Built-in Random Switching function: reduces
EMI noise, simplifies EMI filters, and cuts cost by
external part reduction
• Built-in Slope Compensation function: avoids
subharmonic oscillation
• Built-in Leading Edge Blanking (LEB) function
• Auto Standby function:
▫ Input power, PIN < 10 mW at no load with low power
consumption shunt regulator
▫ Normal load operation: PWM switching
▫ Light load operation: Standby mode (Burst oscillation)
PWM Off-Line Switching Regulator ICs
Typical Application
Package: DIP8
Not to scale
STR3A151, STR3A152, STR3A153,
STR3A154, STR3A155
Continued on the next page…
STR3A150-DS
Applications
Switching power supplies for electronic devices such as:
• Stand-by power supply for LCD/PDP television,
desktop PC, multi-function printer, audio equipment,
and so forth
• Small switched-mode power supply (SMPS) for printer,
BD/DVD player, set-top box, and so forth
• Auxiliary power supply for air conditioner, refrigerator,
washer, dishwasher, and so forth
July 20, 2012
VAC
C1
C5
R3
D3
D2
R2
C2
T1
D4
C6
R4
R5
U2
R9
R7
C7
D
P
S
PC1
PC1
C3
ROCP
C9
CRD Snubber Circuit
D1
R6
R8
L2
C8
C, RC
Damper
Snubber
Circuit
VOUT
GND
C4
12
34
D/ST D/ST
VCC
NC
S/OCP
FB/OLP
GND
D/ST D/ST
87
65
STR3A100
U1


Số phần tương tự - STR3A152

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