SP7682EB Exar Corporation, SP7682EB Datasheet
SP7682EB
Specifications of SP7682EB
Related parts for SP7682EB
SP7682EB Summary of contents
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... VIN C1+ C1- C2+ C2- VOUT C SDA (SETBL) FLASH SCL (SETFL) SP7682 (SP7682A) LED1 EN LED2 LED3 LED4 PGND SGND SP7682: Backlight and Flash Driver Page 1 SP7682/SP7682A VOUT VIN PGND SGND LED 1 EN LED 2 DESCRIPTION TYPICAL APPLICATION CIRCUIT 2.2uF OUT Flash © 2007 Exar Corporation ...
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... FLASH LED ELECTRICAL SPECIFICATIONS = -40°C to +85°C, Tj=-40°C to +125°C. A CONDITIONS = 0V (shutdown 25°C EN <30mA, 80mA< I <500mA LED FLASH =20mA, measure mode switching LED =200mA, measure mode switching FLASH >I (defined by FLASH THRESHOLD >I = 230mA FLASH THRESHOLD © 2007 Exar Corporation 1 ...
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... V and 0 MAX UNITS CONDITIONS V V 250 µs V < 0.4V SET_BL µs V > 1.6V SET_BL 800 µs V < 0.4V SET_BL 700 µs V < 0.4V SET_FL © 2007 Exar Corporation . DD ...
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... Connect external flying capacitors between these pins. 15,16 C1+, C1- Thermal - Connect thermal pad to PGND pin. Pad Sept 27-07 rev G DESCRIPTION 2 C bus. Multiple functions can be programmed through his SP7682: Backlight and Flash Driver Page 4 PIN DESCRIPTION 2 C interface between 0mA 2 C interface between © 2007 Exar Corporation ...
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... Sept 27-07 rev G SP7682: Backlight and Flash Driver Page 5 FUNCTIONAL DIAGRAM © 2007 Exar Corporation ...
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... Flash channel will mode whenever the Flash current is at least 230mA. The SP7682 and SP7682A are furnished with under- voltage lockout, current limit, thermal shutdown and over voltage protection features. SP7682: Backlight and Flash Driver Page 6 THEORY OF OPERATION timeout is activated and © 2007 Exar Corporation C ...
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... Ds=20mA,F lash=0mA 4LE Ds=20mA,F lash=100mA 4LE Ds=20mA,F lash=200mA 50 3.0 3.3 3.6 Vin (V) Backlight & Flash LED Efficiency 4LE Ds=20mA,F lash=0mA 95 4LE Ds=20mA,F lash=100mA 4LE Ds=20mA,F lash=200mA 3.0 3.3 3.6 Vin (V) © 2007 Exar Corporation 3.9 4.2 IN 3.9 4.2 3.9 4.2 ...
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... OUT IN 3.9 4.2 400mA 2x Timeout Mode Ripple 3.9 4.2 400mA Forced 1.5x Mode Ripple Vs V OUT IN 3.9 4.2 400mA Auto Mode 1. Mode Ripple SP7682: Backlight and Flash Driver Page 8 Vin(AC) Vout(AC) Vin(AC) Vout(AC) Vin(AC) Vout(AC) © 2007 Exar Corporation ...
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... LEDs = 20mA 1.5x Startup from Shutdown Ch2=Vout Ch4=Iin 0.2A/div Flash = 200mA 1.5x Startup from Shutdown Ch2=Vout Ch4=Iin 0.2A/div Flash = 400mA 2x Timeout Startup from SHDN SP7682: Backlight and Flash Driver Page 9 Ch2=Vout Ch4=Iin 0.2A/div Ch1=EN Ch2=Vout Ch4=Iin 0.2A/div Ch1=EN Ch2=Vout Ch4=Iin 0.2A/div © 2007 Exar Corporation ...
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... SP7682A SET_BL=41 Pulses LEDs=20mA, 1.5x Ch2=Vout Ch4=Iin 0.2A/div SP7682A SET_FL=31 Pulses Flash = 0.3A 2x Ch2=Vout Ch4=Iin 0.2A/div SP7682 TD0=TD1=0V Flash=0.3A 4s SP7682: Backlight and Flash Driver Page 10 Ch1=SET_BL Ch2=Vout Ch4=Iin 0.2A/div Ch1=SET_FL Ch2=Vout Ch4=Iin 0.2A/div Ch2=Vout Ch4=Iin 0.2A/div © 2007 Exar Corporation ...
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... Backlight: 1.5x Mode Ripple Ch2=LEDx Ch4=Iin 0.2A/div Turn-off time into SHDN Flash=0.3A Ch2=Vout Ch4=Iin 0.2A/div Settle last count Standby LEDs=20mA 1.5x SP7682: Backlight and Flash Driver Page 11 Ch1=Vin Ch2=Vout Ch1=EN Ch2=FLASH Ch4=Iin 0.5A/div Ch1=SCL Ch2=Vout Ch4=Iin 0.5A/div © 2007 Exar Corporation ...
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... TD1 TOK SP7682: Backlight and Flash Driver Page 12 APPLICATIONS INFORMATION A Data A SP for Flash 8-bit Stop W =0 condition 7-bit R/W address 1/0 Hex A1 A0 A7- 0x28 0 0 0x20 0 0 0x38 0 0 0x30 B2 B1 LED1 LED2 VOK FTO © 2007 Exar Corporation B0 LED3 ...
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... These bits can be used to adjust current TOUT1 State 0 Time-out disabled Timeout enabled for 110mA 1 and above Timeout enabled for 160mA 0 and above Timeout enabled for 230mA 1 and above TD0 TD1 State 0.5s for LEDs][Data for © 2007 Exar Corporation FLASH] ...
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... Exar Corporation ...
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... SP7682A APPLICATIONS INFORMATION BL BL (mA) code (mA) code 0 22 10 11 12 13 14 15 16 17 18 19 © 2007 Exar Corporation BL (mA) 21 21.5 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 ...
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... Ohms for tantalum or aluminum electrolytic capacitors. SP7682: Backlight and Flash Driver Page 16 APPLICATIONS INFORMATION of the LEDs (and F IN (and less than the voltage F •I /(V •I )•100% OUT OUT •I t/(V •I )•100% LED typically measured in © 2007 Exar Corporation ...
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... SP7682: Backlight and Flash Driver Page 17 APPLICATIONS INFORMATION of 0.47uF can be used. For Capacitor ESR at Size/Type/Thickness 100kHz 0402/X5R/0.55mm 0.05 0402/X5R/0.55mm 0.03 0603/X5R/0.9mm 0.03 0603/X5R/0.9mm 0.02 0402/X5R/0.55mm 0.05 0402/X5R/0.55mm 0.03 0603/X5R/0.55mm 0.03 0603/X5R/0.8mm 0.02 FOOTPRINT: 3x3mm 16 pin QFN © 2007 Exar Corporation ...
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... Sept 27-07 rev G SP7682: Backlight and Flash Driver Page 18 PACKAGE: 3x3mm 16 pin QFN © 2007 Exar Corporation ...
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... Control Min Part Number Interface Temp ºC 2 SP7682ER1 SP7682ER1-L/ SP7682EB I C Single SP7682AER1-L Wire SP7682AER1- Single L/TR Wire Single SP7682AEB Wire For further assistance: Email: WWW Support page: Application Notes: EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability ...