SD4870A SILAN [Silan Microelectronics Joint-stock], SD4870A Datasheet
SD4870A
Related parts for SD4870A
SD4870A Summary of contents
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... HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn input DD DIP-8-300-2.54 APPLICATIONS * Battery Chargers * Adapters * Set-Top Box Power Supplies Marking Material 4870 Pb free SD4870A Pb free SD4870C Pb free SD4870C Pb free SOT-23-6L SOP-8-225-1.27 Packing Type Tape & Reel Tube Tube Tape & Reel REV:1.0 2009 ...
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BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Characteristics Symbol VDD Voltage V FB Voltage SENSE Voltage V RI Voltage Junction Temperature Lead Temperature Storage Temperature HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn VDD V FB SENSE stg ...
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ELECTRICAL CHARACTERISTICS Characteristics Symbol V DD Startup Current IV Operation Current UVLO Threshold Voltage UVLO Hysteresis Voltage V V Clamp Voltage VV DD Feedback PWM Gain FB Open Loop Voltage VF FB Short Circuit Current I FB_SHORT FB OL Threshold ...
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... PIN CONFIGURATION PIN DESCRIPTIONS Pin No. Pin Name SD4870A SD4870 SD4870C 3,6 FUNCTION DESCRIPTIONS SD4870 is a current mode PWM controller used in applications for offline flyback converter. The description of functions is as follows. Startup Control Startup current of SD4870 is very low so that IC could start up quickly. A large value startup resistor can be used in startup circuit to minimize standby power loss yet provides reliable startup in application MΩ ...
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Light Load Mode In no load or light load condition, major power loss of total power consumption is from switching loss on the MOSFET transistor switching loss, the core loss of the transformer loss and the loss on the external ...
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TYPICAL APPLICATION CIRCUIT HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.0 2009.09.22 Page ...
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PACKAGE OUTLINE DIP-8-300-2.54 SOP-8-225-1.27 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn UNIT: mm UNIT: mm REV:1.0 2009.09.22 Page ...
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PACKAGE OUTLINE SOT-23-6L MOS DEVICES OPERATE NOTES: Electrostatic charges may exist in many things. Please take following preventive measures to prevent effectively the MOS electric circuit as a result of the damage which is caused by discharge: The operator must ...