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LM2657 Datasheet(PDF) 8 Page - Texas Instruments |
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LM2657 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 36 page + - + - + - + - COMP1 Vref1 0.35V PWM LOGI C E.A. SKIP CMP PWM CMP 85%Ton BOOT1 HDRV1 SW1 V5 LDRV1 PGND1 ILIM1 CURRENT LIMIT CMP ZERO CROSS CMP EN IN IN FB1 SS1 CL1 BOOT2 HDRV2 SW2 COMP2 FB2 Controller2 + Supervisory 2 Controller 1 EN SENSE1 SENSE2 ILIM2 V5 LDRV2 PGND2 1.8k 1.13 x Vref1 0.87 x Vref1 PGOOD1 SENSE1 COMP1 6 2 PA BIAS/ REFERENCES RAMP/ TIMING CONTROL LOGIC 4.2V VDD UV EN FREQ FPWM Supervisory 1 SS2 VIN SGND PGOOD HS_ON LS_ON CL1 V5 25 26 27 28 21 23 24 18 17 16 15 20 19 6 22 10 8 9 7 5 4 2 3 1 14 12 13 11 115 PA + - + - + - VDD VDD VDD VDD VDD VDD 11 PA OVP LM2657 SNVS342B – JANUARY 2005 – REVISED MARCH 2013 www.ti.com BLOCK DIAGRAM 8 Submit Documentation Feedback Copyright © 2005–2013, Texas Instruments Incorporated Product Folder Links: LM2657 |
Similar Part No. - LM2657_15 |
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Similar Description - LM2657_15 |
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