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PDF STR-Y6753 Data sheet ( Hoja de datos )
| Número de pieza | STR-Y6753 | |
| Descripción | Off-Line Quasi-Resonant Switching Regulators | |
| Fabricantes | Allegro | |
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STR-Y6753 and STR-Y6754
Off-Line Quasi-Resonant Switching Regulators
Features and Benefits
• TO–220F–7L package
• Lead (Pb) free compliance
• The built-in startup circuit reduces the number of external
components and lowers standby power consumption
• Multi-mode control allows high efficiency operation
across the full range of loads
• Auto burst oscillation mode for standby mode, for
improving low standby power at no load: input power
< 30 mW at 100 VAC and < 50 mW at 230 VAC
• Bottom-skip mode minimizes switching loss at medium to
low loads
▪ Internal MOSFET VDSS(min) is 650 V
▪ Internal MOSFET RDS(on)(max) 1.9 Ω (STR-Y6753) or
1.4 Ω (STR-Y6754)
• Built-in soft start function reduces stress applied to the
incorporated power MOSFET and peripheral components
• Step-on burst oscillation minimizes transformer
audible noise
• Built-in leading edge blanking (LEB) function eliminates
Continued on the next page…
Package: 7-Pin TO-220F
Description
The STR-Y6753 and STR-Y6754 each comprise a power
MOSFET and a multi-functional monolithic integrated circuit
(MIC) controller designed for controlling switch mode power
supplies. The quasi-resonant mode of operation, coupled with
the bottom-skip function, allows high efficiency and low noise
at low to high operational levels, while burst oscillation mode
ensures minimum power consumption at standby.
In order to sustain low power consumption under low load and
in standby mode, the controller has built-in startup and standby
circuits. This enables output power for the STR-Y6753 up to
60 W with universal input or 100 W with a 380 VDC input,
and for the STR-Y6754 up to 67 W with universal input or
120 W with a 380 VDC input.
The compact 7-pin full mold package (TO220F-7L) reduces
board space by requiring a minimum of external components,
thus simplifying circuit design. This IC, including various
protection functions, is an excellent choice for standardized,
compact power supplies.
STR-Y6753-DS
Not to scale
Typical Application
VAC
CV
T1
D2
VOUT
PC1
C1 R4
P C5
S R5
Error Amp
D1 R2
13
D/ST STR-Y6700 VCC
C2
DZBD
D
GND
Controller BD
Chip (MIC) 6
FB/
OLP
5
S/OCP NF
27
ROCP
GND
4 R3
C3
PC1
C4 CBD
RBD1
RBD2
The NF pin (No. 7) should be connected
to the GND pin (No. 4), which should be
at a stable ground potential, to ensure
stability of operation.
http://www.Datasheet4U.com
1 page  
STR-Y6753 and
STR-Y6754
Off-Line Quasi-Resonant Switching Regulators
Electrical Characteristics of Control Part (MIC) (Continued) Unless specifically noted, TA = 25°C and VCC = 20 V
Characteristic
Symbol
Test Conditions
Pins
Min.
Typ.
Max.
Unit
BD Pin Source Current
OLP Bias Current
OLP Threshold Voltage
OVP Threshold Voltage
FB Pin Maximum Voltage in Feedback
Operation
IBD(O)
IFB(OLP)
VFB(OLP)
VCC(OVP)
VFB(MAX)
6–4
5–4
5–4
3–4
5–4
−250
−15
5.50
28.5
3.70
−83
−10
5.96
31.5
4.05
−30
−5
6.40
34.0
4.40
μA
μA
V
V
V
Thermal Shut Down Temperature
TJ(TSD)
–
Note: The polarity value for current specifies a sink as "+ ," and a source as “−,” referencing the IC.
1The relation of VCC(BIAS) > VCC(OFF) is maintained.
2The relation of VBD(TH1) > VBD(TH2) is maintained in each product.
2The latch circuit means a circuit operated OVP, OLP, OCP (latch-off), or TSD.
135
–
– °C
Electrical Characteristics of MOSFET Unless specifically noted, TA = 25°C and VCC = 20 V
Characteristic
Symbol
Test Conditions
Pins
Min.
Voltage Between Drain and Source
VDSS
1–2
650
Drain Leakage Current
IDSS
1–2
–
On-Resistance
RDS(on)
STR-Y6753
STR-Y6754
1–2
1–2
–
–
Switching Time
STR-Y6753
tf STR-Y6754
1–2
1–2
–
–
Thermal Resistance
Rθch-F
STR-Y6753
STR-Y6754
Between a channel
of the MOSFET
and the internal
leadframe
–
–
–
–
Typ.
–
–
–
–
–
–
2.7
2.4
Max.
–
300
1.9
1.4
250
300
3.1
2.7
Unit
V
μA
Ω
Ω
ns
ns
°C/W
°C/W
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
STR-Y6753-DS
5 Page 
STR-Y6753 and
STR-Y6754
Off-Line Quasi-Resonant Switching Regulators
The products described herein are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc.
Sanken and Allegro reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit im-
provements in the performance, reliability, or manufacturability of its products. Therefore, the user is cautioned to verify that the information in this
publication is current before placing any order.
When using the products described herein, the applicability and suitability of such products for the intended purpose shall be reviewed at the users
responsibility.
Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semi con duc toprroducts
at a certain rate is inevitable.
Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems
against any possible injury, death, fires or damages to society due to device failure or malfunction.
Sanken products listed in this publication are designed and intended for use as components in general-purpose electronic equipment or apparatus
(home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). Their use in any application requiring radiation
hardness assurance (e.g., aerospace equipment) is not supported.
When considering the use of Sanken products in applications where higher reliability is required (transportation equipment and its control systems
or equipment, fire- or burglar-alarm systems, various safety devices, etc.), contact a company sales representative to discuss and obtain written
confirmation of your spec i fi ca tions.
The use of Sanken products without the written consent of Sanken in applications where extremely high reliability is required (aerospace equip-
ment, nuclear power-control stations, life-support systems, etc.) is strictly prohibited.
The information included herein is believed to be accurate and reliable. Application and operation examples described in this pub li ca tionare
given for reference only and Sanken and Allegro assume no responsibility for any infringement of industrial property rights, intellectual property
rights, or any other rights of Sanken or Allegro or any third party that may result from its use. The contents in this document must not be transcribed
or copied without Sanken’s or Allegro's written consent.
Copyright ©2012 Allegro MicroSystems, Inc.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
11
STR-Y6753-DS
11 Page | ||
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| PDF Descargar | [ Datasheet STR-Y6753.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| STR-Y6753 | Quasi-Resonant Controllers |  Sanken |
| STR-Y6753 | Off-Line Quasi-Resonant Switching Regulators | Allegro |
| STR-Y6754 | Quasi-Resonant Controllers | Sanken |
| STR-Y6755 | Off-Line Quasi-Resonant Switching Regulators | Allegro |
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