|
|
PDF STR-X6737 Data sheet ( Hoja de datos )
| Número de pieza | STR-X6737 | |
| Descripción | Off-Line Quasi-Resonant Switching Regulators | |
| Fabricantes | Sanken | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de STR-X6737 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
STR-X6737
Off-Line Quasi-Resonant Switching Regulators
Features and Benefits
▪ Quasi-resonant topology IC Low EMI noise and soft
switching
▪ Bottom-skip mode Improved system efficiency over
the entire output load by avoiding increase of switching
frequency
▪ Auto-Standby mode Lowers input power at very light
output load condition
▪ Avalanche-guaranteed MOSFET Improves system-level
reliability and does not require VDSS derating
▪ 500 VDSS / 0.36 Ω RDS(on)
▪ Various protections Improved system-level reliability
▫ Pulse-by-pulse drain overcurrent limiting
▫ Overvoltage Protection (bias winding voltage sensing),
with latch
▫ Overload Protection with latch
▫ Maximum on-time limit
Package: 7-Pin TO-3P
Description
The STR-X6737 is a quasi-resonant topology IC designed for
SMPS applications. It shows lower EMI noise characteristics
than conventional PWM solutions, especially at greater than
2 MHz. It also provides a soft-switching mode to turn on the
internal MOSFET at close to zero voltage (VDS bottom point)
by use of the resonant characteristic of primary inductance
and a resonant capacitor.
The package is a fully molded TO-3P, which contains the
controller chip (MIC) and MOSFET, enabling output power
up to 280 W at 120 VAC input. The bottom-skip mode skips
the first bottom of VDS and turns on the MOSFET at the second
bottom point, to minimize an increase of operating frequency
at light output load, improving system-level efficiency over
the entire load range.
There are two standby modes available to reduce the input power
under very light load conditions. The first is Auto-Standby
mode, which is internally triggered by periodic sensing, and
the other is a manual standby mode, which is executed by
clamping the secondary output. In general applications, the
manual standby mode reduces the input power further compared
to Auto-Standby mode.
Not to scale
Continued on the next page…
Typical Application
28103.30-9
1 page  
STR-X6737
Off-Line Quasi-Resonant Switching Regulators
STR-X6737
MOSFET Ta-PD1 Curve
50
45 With infinite heatsink
40
35
30
25
20
15 Without heatsink
10
5 PD1=2.8[W]
0
0 20 40 60 80 100 120 140
Ta [℃]
Ambient temperature
STR-X6737
MIC TF-PD2 Curve
1
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120 140
TF〔℃〕
Internal frame temperature
1
0.1
0.01
0.001
1.0E-06
STR-X6737
Transient thermal resistance curve
1.0E-05
1.0E-04
t [sec]
time
1.0E-03
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
1.0E-02
1.0E-01
5
5 Page 
STR-X6737
Off-Line Quasi-Resonant Switching Regulators
Worldwide Contacts
Asia-Pacific
China
Sanken Electric Hong Kong Co., Ltd.
Suite 1026, Ocean Centre, Canton Road
Tsimshatsui, Kowloon, Hong Kong
Tel: 852-2735-5262, Fax: 852-2735-5494
Sanken Electric (Shanghai) Co., Ltd.
Room 3202, Maxdo Centre, Xingyi Road 8
Changning District, Shanghai, China
Tel: 86-21-5208-1177, Fax: 86-21-5208-1757
Taiwan Sanken Electric Co., Ltd.
Room 1801, 18th Floor, 88 Jung Shiau East Road
Sec. 2, Taipei 100, Taiwan R.O.C.
Tel: 886-2-2356-8161, Fax: 886-2-2356-8261
Japan
Sanken Electric Co., Ltd.
Overseas Sales Headquarters
Metropolitan Plaza Building, 1-11-1 Nishi-Ikebukuro
Toshima-ku, Tokyo 171-0021, Japan
Tel: 81-3-3986-6164, Fax: 81-3-3986-8637
Korea
Sanken Electric Korea Co., Ltd.
Mirae Asset Life Building, 6F
168 Kongduk-dong, Mapo-ku
Seoul 121-705, Korea
Tel: 82-2-714-3700, Fax: 82-2-3272-2145
Singapore
Sanken Electric Singapore Pte. Ltd.
150 Beach Road, #14-03 The Gateway West
Singapore 189720
Tel: 65-6291-4755, Fax: 65-6297-1744
Europe
Sanken Power Systems (UK) Limited
Pencoed Technology Park
Pencoed, Bridgend CF35 5HY, United Kingdom
Tel: 44-1656-869-100, Fax: 44-1656-869-162
North America
United States
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01606, U.S.A.
Tel: 1-508-853-5000, Fax: 1-508-853-7895
Allegro MicroSystems, Inc.
14 Hughes Street, Suite B105
Irvine, California 92618, U.S.A.
Tel: 1-949-460-2003, Fax: 1-949-460-7837
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet STR-X6737.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| STR-X6737 | Off-Line Quasi-Resonant Switching Regulators | Sanken |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |