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A6052M Schematic ( PDF Datasheet ) - Allegro MicroSystems

Teilenummer A6052M
Beschreibung STR-A6052M
Hersteller Allegro MicroSystems
Logo Allegro MicroSystems Logo 




Gesamt 15 Seiten
A6052M Datasheet, Funktion
www.DataSheet.co.kr
STR-A60xxM
Current Mode Control PWM Regulator IC
For Switching Power Supplies
Features and Benefits
Small DIP8 package with 8 to 24 W power output 230 VAC
Current Mode PWM control with 67 kHz switching
frequency
Built-in Random Switching function, reducing EMI noise,
and simplifying EMI filters, and therefore reducing cost
Built-in Slope Compensation function, avoiding
subharmonic oscillation
Built-in Auto Standby function (Input Power, PIN < 25 mW
at no load)
Normal operation: PWM mode
Light load operation: Standby mode (burst oscillation)
Built-in Audible Noise Suppression function during
Standby mode
Built-in Startup Circuit, reducing power consumption in
standby operation, and eliminating external components.
Bias-Assist function, improving startup operation,
suppressing VCC voltage drop in operation, and allowing
use of smaller VCC capacitor
Continued on the next page…
Package: 8-pin DIP
Not to scale
Description
The STR-A60xxM series are power ICs for switching power
supplies, incorporating a power MOSFET and a current mode
PWM controller IC. Including a startup circuit and a standby
function in the controller, the product achieves low power
consumption, low standby power, and high cost-effectiveness
power supply systems with few external components.
The STR-A60xxM internal MOSFET has a VDSS of
650 V(min) or 800 V(min), and an RDS(on) of 1.9 to 19.2 Ω
with a frequency of 67 kHz. Power output is rated at
8 to 24 W at 230 VAC input and 5 to 20 W at wide input range
(85 to 265 VAC).
The device is provided in an industry-standard DIP-8 package,
with pin 6 removed for increased isolation.
Applications:
For switching power supplies used in:
• Battery chargers for cell phones, digital cameras,
video cameras, shavers, emergency lights
• Stand-by power for LCD TVs, desktop PCs, LB Printers,
audio equipment
• Small switched-mode power supplies for inkjet printers,
DVD/CD players, set-top boxes
• Auxiliary power supplies for A/C, refrigerators, washers,
dish washers, and other white goods
Typical Application
VIN(AC)
87
D/ST D/ST
5
VCC
STR-A6000
S/OCP BR GND FB/OLP
1234
OUT
GND
STRA60XXM-DS
Datasheet pdf - http://www.DataSheet4U.net/






A6052M Datasheet, Funktion
www.DataSheet.co.kr
STR-A60xxM
Current Mode Control PWM Regulator IC
For Switching Power Supplies
MOSFET Electrical Characteristics Valid at TA = 25°C, unless otherwise specified
Characteristic
Symbol
Device Terminal
Min.
STR-A6051M 8 – 1
650
Drain-to-Source Breakdown Voltage
VDSS
STR-A6052M
STR-A6053M
8–1
8–1
650
650
STR-A6079M 8 – 1
800
Drain Leakage Current
IDSS – 8 – 1
STR-A6051M 8 – 1
On-Resistance
RDS(on)
STR-A6052M
STR-A6053M
8–1
8–1
STR-A6079M 8 – 1
STR-A6051M 8 – 1
Switching Time
STR-A6052M 8 – 1
tf STR-A6053M 8 – 1
STR-A6079M 8 – 1
Thermal Resistance*
RθchC
RθchC
*Case temperature, TC , is defined at the center of surface on the branded side of the package.
Typ.
Max.
300
3.95
2.8
1.9
19.2
250
250
400
250
22
Unit
V
V
V
V
μA
Ω
Ω
Ω
Ω
ns
ns
ns
ns
°C/W
VIN(AC)
87
D/ST D/ST
5
VCC
STR-A6000
S/OCP
1
BR GND FB/OLP
234
OUT
GND
Typical application circuit example. Brown-in/Brown-out function enabled by
connecting the BR terminal to a resistive divider
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
Datasheet pdf - http://www.DataSheet4U.net/

6 Page









A6052M pdf, datenblatt
www.DataSheet.co.kr
STR-A60xxM
Current Mode Control PWM Regulator IC
For Switching Power Supplies
Packing Specifications
5.8 ±0.2
50 pieces per tube
504 ±1.0
4.0 ±0.2
12.8 ±0.2
Tube dimensions (mm)
525 543
306
141 Carton dimensions (mm)
50 tubes per inner carton (maximum)
2500 pieces maximum per inner carton
4 inner cartons per outer carton (maximum)
10,000 pieces maximum per outer carton
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
12
Datasheet pdf - http://www.DataSheet4U.net/

12 Page





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