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SI9122ADLP-T1-E3 Datasheet(PDF) 8 Page - Vishay Siliconix |
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SI9122ADLP-T1-E3 Datasheet(HTML) 8 Page - Vishay Siliconix |
8 / 20 page www.vishay.com 8 Document Number: 73492 S-80038-Rev. D, 14-Jan-08 Vishay Siliconix Si9122A PIN CONFIGURATION 20 19 18 17 1 2 3 4 16 15 14 13 5 6 7 8 VIN BST REG_COMP DH VCC LX VREF DL GND PGND ROSC SRH EP SRL VINDET SS Si9122ADQ (TSSOP-20) Top View 12 11 9 10 CS1 BBM CS2 CL_CONT Si9122ADLP (MLP65-20) Top View BST DH LX DL PGND SRH SRL SS BBM CL_CONT VIN REG_COMP VCC VREF GND ROSC EP VINDET CS1 CS2 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 ORDERING INFORMATION Part Number Temperature Range Package Si9122ADQ-T1-E3 - 40 °C to 85 °C TSSOP-20 Si9122ADLP-T1-E3 MLP65-20 Eval Board Temperature Range Board Type Contact Factory - 10 °C to 70 °C Surface Mount and Thru-Hole PIN DESCRIPTION Pin Number Name Function 1 VIN Input supply voltage for the start-up circuit 2 REG_COMP Control signal for an external pass transistor 3 VCC Supply voltage for internal circuitry 4 VREF 3.3 V reference 5 GND Ground 6 ROSC External resistor connection to oscillator 7 EP Voltage control input 8 VINDET VIN under voltage detect and shutdown function input. Shuts down or disables switching when VINDET falls below preset threshold voltages and provides the feed forward voltage. 9 CS1 Current limit amplifier negative input 10 CS2 Current limit amplifier positive input 11 CL_CONT Current limit compensation 12 BBM Programmable break-before-make time connection to an external resistor to set time delay 13 SS Soft-start control - external capacitor connection 14 SRL Signal transformer drive, sequenced with the primary side 15 SRH Signal transformer drive, sequenced with the primary side 16 PGND Power ground. 17 DL Low-side gate drive signal - primary 18 LX High-side source and transformer connection node 19 DH High-side gate drive signal - primary 20 BST Bootstrap voltage to drive the high-side N-Channel MOSFET switch |
Similar Part No. - SI9122ADLP-T1-E3 |
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Similar Description - SI9122ADLP-T1-E3 |
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