STR-A6259H ALLEGRO [Allegro MicroSystems], STR-A6259H Datasheet
STR-A6259H
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STR-A6259H Summary of contents
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... STR-A6259H Universal-Input 13 W 100 kHz Flyback Switching Regulators The STR-A6259H is a 100 kHz PWM topology (with ±5% freq- uency jittering for minimum EMI) regulator specifically designed to satisfy the requirements for increased integration and reliability in flyback converters. It incorporates a primary control and drive Package DIP-8 circuit with an avalanche-rated power MOSFET ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators FUNCTIONAL BLOCK DIAGRAM AND TERMINAL ASSIGNMENTS Vcc 5 OVP 32V TSD 125°C PWM OSC FM/SS 2 OCP Number Name 1 S/OCP 2 FM/SS 3 GND 4 FB /CC/OLP 5 VCC RESET Internal UVLO 7.2V BIAS 13.4V/10V Delay 10 µs ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators ABSOLUTE MAXIMUM RATINGS 25°C A Characteristic Drain Current 1 Maximum Switching Current Single Pulse Avalanche Energy 2 S/OCP Terminal Voltage Controller (MIC) Input Voltage FB/CC/OLP Terminal Voltage FM Terminal Voltage MOSFET Power Dissipation 3,4 Controller (MIC) Power Dissipation ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators Figure 3 – MOSFET Avalanche Energy Derating Curve 100 100 Channel Junction Temperature, T Figure 5 – MOSFET Power Dissipation versus Temperature 1.6 1 1.0 0.8 0.6 0.4 0 100 Ambient Temperature, T 10.00 1.00 0.10 0.01 125 150 (° ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators ELECTRICAL CHARACTERISTICS for Controller (MIC), valid at T Characteristic Symbol Operation Start Voltage V CC(ON) Operation Stop Voltage V CC(OFF) Circuit Current In Operation I CC(ON) Initialization Circuit Current I CC(OFF) Center Switching Frequency f osc(av) Frequency Jitter Deviation Δf Maximum Duty Cycle ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators ELECTRICAL CHARACTERISTICS for Controller (MIC) continued, valid at T Constant Current Set Voltage V SET(CC) Constant Current Reset V RES(CC) Voltage Start-Up Current I startup OVP Threshold Voltage V CC(OVPth) Latch Circuit Sustaining I CC(H) Current 1 Latch Circuit Release ...
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... S/OCP FM/SS GND /OLP 10V I FM 18V 1µF 5.1V Vcc VCC I D STR-A6259H 0.4A FB/CC S/OCPFM/SS GND /OLP OCP 47nF 5.1V Measurement Circuit 1 18V Vcc(ON) 13V Vcc(OFF) Vcc Icc Icc(OFF) Icc Measurement Circuit 2 18V V CC ...
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... DD 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 25V V OLP SET(CC) V RST(CC) 8V TOLP 20µA typ. 280µA typ. I OLP Measurement Circuit VCC STR-A6259H Icc FB/CC GND /OLP Vcc + 18V 1µF 18V 8V V DSpeak 1.8 A Lpeak ...
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... Universal Input 13 W 100 kHz Flyback Switching Regulators For improved thermal dissipation, connect terminals 7 and 8 85~ 265VAC S/OCP TYPICAL APPLICATION CIRCUIT to as large an area of exposed copper as possible VCC STR-A6259H R4 FB/CC FM/SS GND /OLP 115 Northeast Cutoff, Box 15036 ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators PACKAGE DIMENSIONS, DIP-8 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 Dimens ions in Inc hes (for reference only) Dimens ions in Millimeters (controlling dimens ions ) 10 ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators Orientation of Devices in Shipping Tubes Shipping Tube Dimensions Inner Carton Dimensions Capacity: 50 tubes per inner carton Outer Carton Dimensions Capacity: 4 inner cartons per outer carton; 10,000 devices maximum per outer carton PACKING SPECIFICATIONS ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators 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. Do not connect ground ed test equipment. ...
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... STR-A6259H Universal Input 13 W 100 kHz Flyback Switching Regulators 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 ...