STR-X6737 Allegro Microsystems Inc, STR-X6737 Datasheet
STR-X6737
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STR-X6737 Summary of contents
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... Maximum on-time limit Package: 7-Pin TO-3P Not to scale 28103.30-9 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 (V by use of the resonant characteristic of primary inductance and a resonant capacitor ...
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... MOSFET secure good system-level reliability. Applications include the following: ▪ Set Top Box ▪ LCD PC monitor, LCD TV ▪ Printer, Scanner ▪ SMPS power supplies Selection Guide Part Number STR-X6737 Absolute Maximum Ratings Parameter Drain Current 1 Maximum Switching Current 2 ...
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... STR-X6737 Functional Block Diagram Terminal List Table Number Name 1 D Drain 2 S Source 3 GND Ground terminal 4 VCC Power supply terminal 5 SS/OLP Soft Start/Overload Protection terminal 6 FB Feedback terminal 7 OCP/BD Overcurrent Protection/Bottom Detection Off-Line Quasi-Resonant Switching Regulators Description MOSFET drain MOSFET source ...
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... Tch [℃] Channel temperature Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com STR-X6737 MOSFET A.S.O. Curve Ta=25℃ Single 100 Determuned by On-Resistance 10 1ms 1 Apply A.S.O temerature 0.1 coefficinet from the left graph to this curve for evaluating actual operation's safety 0 ...
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... Ambient temperature 1 0.1 0.01 0.001 1.0E-06 Off-Line Quasi-Resonant Switching Regulators Curve STR-X6737 Transient thermal resistance curve 1.0E-05 1.0E-04 t [sec] time Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com STR-X6737 MIC T -P Curve 0.8 0.6 0.4 0 100 120 140 T 〔 ...
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... STR-X6737 ELECTRICAL CHARACTERISTICS Characteristic ELECTRICAL CHARACTERISTICS for Controller (MIC) Power Supply Start-up Operation Operation Start Voltage Operation Stop Voltage Circuit Current In Operation Circuit Current In Non-Operation Oscillation Frequency Soft Start Operation Stop Voltage Soft Start Operation Charging Current Normal Operation Bottom-Skip Operation Threshold Voltage 1 ...
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... STR-X6737 100 pieces per tray 5 trays per inner carton (Outer packing dependent on quantity) Dimensions in millimeters 48 333 Off-Line Quasi-Resonant Switching Regulators Packing Specifications 388 137 364 177 4 inner cartons per outer carton 500 pieces maximum per inner carton 2000 pieces maximum per outer carton ...
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... STR-X6737 15.6 ±0.2 6 Gate Burr Branding Area XXXXXXXX XXXXXXXX XXXXXXXX View A 2X 2.54±0.1 Terminal dimension at lead tip Gate burr: 0.3 mm (max.) Terminal core material: Cu Terminal treatment: Ni plating and Pb-free solder dip Leadform: 1901 Approximate weight Dimensions in millimeters Off-Line Quasi-Resonant Switching Regulators Package Outline Drawing, TO-3P 5.5± ...
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... STR-X6737 WARNING — These devices are designed to be operated at lethal voltages and energy levels. Circuit designs that embody these components must conform with applicable safety requirements. Pre cau- tions must be taken to prevent accidental contact with power-line potentials. The use of an isolation transformer is recommended during circuit development and breadboarding. ...
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... STR-X6737 The products described herein are manufactured in Ja pan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken and Allegro reserve the right to make, from time to time, such de par tures from the detail spec tions as may be re quired to per mit im- prove ments in the per for mance, reliability, or manufacturability of its prod ucts ...
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... STR-X6737 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. ...