SP7600EB Exar Corporation, SP7600EB Datasheet
SP7600EB
Specifications of SP7600EB
Related parts for SP7600EB
SP7600EB Summary of contents
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... The SP7600 is pin compatible with Exar’s XRP7603 and XRP7604, non synchronous buck high power led drivers respectively rated at 500mA and 1A. The SP7600 is offered in a compact thermally enhanced lead free RoHS compliant 8-pin SO package. TYPICAL APPLICATION DIAGRAM Exar Corporation 48720 Kato Road, Fremont CA 94538, USA ...
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... Minimum Duty Cycle Maximum Duty Cycle VDR Voltage Over-Current Threshold ISET Pin Input Current OFF Interval During Hiccup SHDN Threshold SHDN Threshold Hysteresis Switch On Resistance Switch Leakage Note 1: All parameters tested at T =25°C. Specifications over temperature are guaranteed by design. A © 2009 Exar Corporation ...
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... BLOCK DIAGRAM PIN ASSIGNEMENT © 2009 Exar Corporation Fig. 2: SP7600 Block Diagram Fig. 3: SP7600 Pin Assignement 3/ Rev. 2.0 ...
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... Part Number Range SP7600EN2-L -40°C≤T ≤+125°C J SP7600EN2-L/TR -40°C≤T ≤+125°C J SP7600EB SP7600 Evaluation Board “YY” = Year – “WW” = Work Week – “L” = Lead Free designator – “X” = Lot Number © 2009 Exar Corporation ...
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... The last scope photos are for the output short circuit which causes a hiccup mode. The output can be shorted which causes a controlled automatic reset or hiccup mode of about 50 to 100msec period. All data taken 12V 25°C, unless otherwise specified - Schematic and BOM from Application Information IN A section of this datasheet. Fig. 4: Efficiency vs Input Voltage © 2009 Exar Corporation ...
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... Fig. 6: Feedback Voltage vs Input Voltage Fig Cout, Output Ripple=440mVpp, Vin=29V 2 LEDs in parallel, Vf=3. Fig. 10: 5V Vin Startup 2 LED in parallel, Vf=3. © 2009 Exar Corporation Fig Cout, Output Ripple=150mVpp, Vin=6V 2 LEDs in parallel, Vf=3. Ch1: Lx Ch2: Vout(AC) Ch4: ILx 2A/div Fig. 9: Cout=1uF, Output Ripple=70mVpp, Vin=29V 2 LEDs in parallel, Vf=3 ...
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... Fig. 12: 29V Vin Startup 2 LED in parallel, Vf=3. Fig. 14: OutputShort Circuit Zoomed in on hiccup mode with Vin=29V © 2009 Exar Corporation Ch1: Vin Ch2: Vout Ch3: VFB Ch4: ILx 2A/div Fig. 13: Output Short Circuit Hiccup mode with Vin=29V Ch1: Lx Ch2: Vout Ch3: VFB ...
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... This external signal we call DIM turns the MOSFET gate drive on/off, thereby modulating the average current delivered to the LED. The DIM signal connects to the VFB pin through a 1N4148 diode and will shutdown the SP7600 when DIM = H and turn-on the SP7600 when © 2009 Exar Corporation ...
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... Vin be applied after FB is set at the high state (>1.2V). The regulator is now in standby and once Vin has reached steady-state then FB is transitioned from a high to a low state. The regulator then starts operating at nominal frequency. © 2009 Exar Corporation ...
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... Cin. I (A) O <0.7 0.71 to 1.2 >1.2 Table 1: Cin Selection Calculate the ripple current requirement from: = × Irip Io D Equ. Where Vin Ceramic capacitors are recommended for input filtering due to their low Equivalent Series © 2009 Exar Corporation ...
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... Keep other sensitive circuits and traces away from the LX node in particular and away from the power supply completely if possible. For more detail on the SP7600 layout see the SP7600EB Evaluation Board Manual available on our web site. Each layer is shown in detail as well as a complete bill of materials. formed ...
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... PACKAGE SPECIFICATION 8-P HSOICN IN © 2009 Exar Corporation 12/ Rev. 2.0 ...
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... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...