SC2604EVB SEMTECH [Semtech Corporation], SC2604EVB Datasheet
SC2604EVB
Related parts for SC2604EVB
SC2604EVB Summary of contents
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POWER MANAGEMENT Features Input Voltage Range: 4.5V to 3.5V % Voltage Reference Accuracy 95% Efficiency Input Disconnect FET Drive In-rush Current Control Internal Compensation Programmable Current Limit Programmable Soft Start ...
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... Semtech Lot No. (Example: E90) xxxx = Semtech Lot No. (Example: 0-) © 2007 Semtech Corp. Ordering Information Device SC2604MSTRT ()(2) SC2604EVB Evaluation Board Notes: () Available in tape and reel only. A reel contains 2,500 devices. (2) Available in lead-free package only. Device is fully WEEE and RoHS compliant. SC2604 ...
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Absolute Maximum Ratings V Supply Voltage ……………………………… -0.3 to 20V IN CS Pin Voltage………………………………………-0.3 to 20V GATE Pin Voltage……………………………………-0.3 to 20V DRV Pin Voltage ……………………………………-0.3 to 25V OCP/EN Pin Voltage …………………………………-0 SS/VREF Pin Voltage …………………………………-0 ...
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Electrical Characteristics (Cont 2V 25V, -40°C < T Unless otherwise noted Parameter PWM Switch Gate Drive Gate Source Current Gate Sink Current PWM Switch Soft Start Soft Start Charge Current SS/VREF Threshold to Shutdown ...
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Pin Descriptions Pin Pin Name Pin Function CS Current sense input (negative) 2 VIN Device supply voltage (also positive current sense input) 3 GATE PWM gate driver output for boost converter 4 GND Device ground 5 SS/VREF Soft start ...
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Block Diagram © 2007 Semtech Corp. Figure 2. SC2604 Function Diagram SC2604 www.semtech.com 6 ...
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Typical Characteristics © 2007 Semtech Corp. SC2604 www.semtech.com 7 ...
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Typical Characteristics (Cont.) © 2007 Semtech Corp. SC2604 www.semtech.com 8 ...
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Applications Information PWM Control Loop The SC2604 is a voltage-mode PWM controller with a fixed switching frequency of 400kHz for use in high efficiency, boosted voltage, DC/DC power supplies. As shown in Figure 2, the PWM control loop of the ...
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Applications Information (Cont.) soft-start of the switching boost regulator. The DRV pin of the SC2604 is meant to drive an N-Channel FET that can disconnect the input supply in the event of an over-current condition. The OCP/EN capacitor becomes part ...
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Applications Information (Cont.) lower ground injection currents, resulting in electrically “cleaner” grounds for the rest of the system and minimize source ringing, resulting in more reliable gate switching signals. 3) The connection between the junction of Q output capacitor should ...
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Applications Information (Cont.) Typical application schematic with 12V input and 25V/1.5A output Note: A small Schottky diode (Da) may be required in some applications to clamp negative spike at the GATE pin. Bill of materials © 2007 Semtech Corp. SC2604 ...
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Applications Information (Cont.) © 2007 Semtech Corp. Start up Inductor current and DRV pin voltage at OCP SC2604 www.semtech.com 3 ...
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Outline Drawing - MSOP-8 Land Pattern - MSOP-8 Contact Information © 2007 Semtech Corp. Semtech Corporation Power Mangement Products Division 200 Flynn Road, Camarillo, CA 9302 Phone: (805) 498-2 Fax: (805) 498-3804 SC2604 www.semtech.com 4 ...