SP7686AER-L Exar Corporation, SP7686AER-L Datasheet
SP7686AER-L
Specifications of SP7686AER-L
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SP7686AER-L Summary of contents
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... Both parts have over- voltage, over-current, over-temperature and FLASH time-out protection features. The SP7686 and SP7686A are offered in a RoHS compliant “green”/halogen free space saving 8-pin 2x3mm DFN package. TYPICAL APPLICATION DIAGRAM Exar Corporation 48720 Kato Road, Fremont CA 94538, USA ...
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... Ctrl Input Data Rate Wake-up time (TPOR) from Vin off Wake-up time (TON) from shutdown Delay time (TDELAY) from 1st to 2nd pulse Turn-off time (TOFF) into shutdown Turn-off time (TOFFC )into shutdown Time Duration before shutdown Logic low voltage © 2010 Exar Corporation ...
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... Parameter Logic high voltage CTRL, EN pin current Note 1: Guaranteed maximum allowable power dissipation depends on the ambient temperature BLOCK DIAGRAM: SP7686 BLOCK DIAGRAM: SP7686A © 2010 Exar Corporation Min. Typ. Max. Units 1.4 V • Driver enabled 0.5 μA • (EN pin is SP7686A only) Fig ...
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... SP7686 SP7686A PIN DESCRIPTION: SP7686 Name Pin Number C1 CTRL SGND 7 PGND 8 V OUT © 2010 Exar Corporation ...
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... EN 7 PGND 8 V OUT ORDERING INFORMATION Temperature Part Number Range SP7686AER-L -40°C≤T ≤+85°C A SP7686AER-L/TR -40°C≤T ≤+85°C A SP7686ER-L -40°C≤T ≤+85°C A SP7686ER-L/TR -40°C≤T ≤+85°C A SP7686EB SP7686EB “YY” = Year – “WW” = Work Week – “X” = Lot Number © ...
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... Typical Application Circuit Luxeon LXCL-PWF3 400 350 300 250 200 150 100 Vctrl Pulse Fig. 3: SP7686 VFB vs CTRL Pulses 500 400 Flash 440mA 300 Torch 160mA Torch 88mA 200 100 0 3.0 3.3 3.6 Vin (V) Fig. 5: SP7686 Output Current vs Input Voltage © 2010 Exar Corporation ...
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... I IN Fig. 7: SP7686 Startup with 3 CTRL Pulses 0.5A/div IN Fig. 9: SP7686 Turn-off time into SHDN I IN Fig. 11: SP7686 LED Open, VIN = 4.2V © 2010 Exar Corporation CTRL V OUT VFB : 0.5A/div Fig. 8: SP7686 Startup with 32 CTRL Pulses, V =4.2V IN CTRL V OUT VFB Fig. 10: SP7686 Vout Shorted to GND, VIN = 5.5V ...
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... Vin (V) Fig. 13: SP7686A Flash Mode Output Current SP7686A Turn-off to Shutdown, VIN=4. VFB I 1A/div IN SP7686A Flash Mode 1X, VIN=4.2V © 2010 Exar Corporation 200 150 100 50 0 3.6 3.9 4.2 Fig. 14: SP7686A Torch Mode Output Current ...
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... EN V OUT VFB I 0.5A/div IN SP7686A Torch Mode 1X, VIN=4.2V FLASH V OUT VFB SP7686A 1X Torch to 2X Flash, VIN=3.3V SP7686A Flash 1X Ripple, VIN=4.2V © 2010 Exar Corporation SP7686A Torch Mode 2X, VIN=2.9V FLASH SP7686A 2X Flash to 1X Torch, VIN=3.3V SP7686A Torch 1X Ripple OUT VFB I 0.5A/div ...
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... Flash and Torch mode. The part is enabled and disabled by the separate ENABLE pin. The part has a 3.5s maximum on time in Flash mode. After a 3.5s timeout occurs the part shuts down and can be enabled by the FLASH or ENABLE pins. This © 2010 Exar Corporation ...
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... O P VERCURRENT ROTECTION The overcurrent protection circuitry monitors the average current out of the VOUT pin. If the average output current approximately 1.5Amp, then the overcurrent protection circuitry shuts switches to protect the chip. © 2010 Exar Corporation ...
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... For best regulation and low input current ripple the input capacitor value of 10μF is recommended. A smaller 4.7μF for Cin will Manufacturers/ Website TDK/www.tdk.com C1005X5R0J224K TDK/www.tdk.com C1005X5R0J105K TDK/www.tdk.com C1608X5R0J225K TDK/www.tdk.com C1608X5R0J475K TDK/www.tdk.com C1608X5R0J107M Murata/www.murata.com GRM155R60J224KE19D Murata/www.murata.com GRM155R60J105KE19D Murata/www.murata.com GRM188R60J225KE19D Murata/www.murata.com GRM188R60J475KE19D Murata/www.murata.com GRM188R60J106ME19D © 2010 Exar Corporation ...
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... V /R LED FB SENSE The curves below show the feedback and LED currents for the CTRL pin pulse count and standard R resistor values. SENSE After the desired count is reached the CTRL input must remain high to hold the count. If © 2010 Exar Corporation ...
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... Fig. xx: PCB Footprint for 2x3mm 8pin DFN Package (JEDEC MO-229) All Dimensions in millimeters © 2010 Exar Corporation Fig. xx: Example Board Layout 14/ Rev. 2.1 ...
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... PACKAGE SPECIFICATION 2 3 DFN X MM © 2010 Exar Corporation 15/ Rev. 2.1 ...
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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 ...