SP7685ER-L Exar Corporation, SP7685ER-L Datasheet
SP7685ER-L
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SP7685ER-L Summary of contents
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Buck/Boost Charge Pump LED Driver FEATURES ■ Output Current up to 1.2A ■ 94% Efficiency in Torch Mode ■ Adjustable FLASH Mode Current ■ Minimum External Components: No Inductors ■ Automatic Buck/Boost Mode Switchover ■ Wide V ...
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OUT ....................................................................... IN Output Current Pulse (Flash) ................................. 2A Output Current Continuous (Torch) ..................... 0.4A Storage Temperature ...................... -65°C to +150°C Operating Temperature ..................... -40°C to +85°C V ............................................................ 0. 3x3 10 DFN .........................................O ...
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PIN PIN NAME NUMBER Input Voltage for the charge pump. Decouple with 4.7µF ceramic capacitor close to the pins of the IC. Positive input for the external flying capacitor. Connect ceramic 1µF capacitor close ...
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RSET BLOCK 6 RSET + - BG REF RSET + 1.26V - } { R SET R REF= x 14μA SET 5 FLASH The SP7685 is a charge pump regulator designed for converting a Li-Ion battery voltage of 2.7V to ...
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In the Torch mode, (Flash = GND) the Flash pin is set to logic low and the SP7685 FB pin regulates to 50mV output 50mV (Torch Mode) FB When in Flash mode, (Flash = V regulation voltage is ...
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V =3.6V, Typical Application Circuit SP7685 Torch Output Current 300 250 200 150 -40C 100 25C 85C 50 0 3.0 3.2 3.4 3.6 3.8 Input Voltage (V) SP7685 Output Current 1100 1000 900 800 700 600 1000mA,Vf=3.31V PWF1 ...
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V =3.6V, Typical Application Circuit Torch Flash in 1X Mode, V Start Up 200mA Torch V =3.6V, V =3.1V IN OUT Start Up 700mA Flash V =3.6V, V =3.6V IN OUT Date: 6/20/06 Rev T ...
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V =3.6V, Typical Application Circuit Ripple 1X Torch 200mA, V =4.2V IN Ripple 1X Flash 700mA, V =4.2V IN Ripple 1X Flash 1000mA, V =4.2V IN Date: 6/20/06 Rev T SP7685, 1.2A Buck/BoostCharge Pump LED Driver APPLICATION INFORMATION ...
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The SP7685 charge pump circuit requires three capacitors: 10μF input, 10μF output and 1μF fly capacitor are typically recom- mended. For the input capacitor, a value of 10μF will help reduce input voltage ripple for applications sensitive to ripple on ...
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Watt pulsed power, more than enough for this application. For other applications, the P power can be calculated and resistor FLASH size selected. The R resistor is recom- SENSE Part Reference Value RSET 33kΩ RSET 39kΩ RSET 43kΩ RSET 47kΩ ...
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D D/2 E/2 Pin1 Designator to be within this TOP VIEW INDEX AREA (D/2 x E/2) INDEX AREA (D/2 x E/2) L 3x3 10 Pin DFN Dimensions in Millimeters: SYMBOL ø ...
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... Part Number SP7685ER-L ............................................... -40°C to +85°C ....................................... (Lead Free) 10 Pin DFN SP7685ER-L/TR ........................................ -40°C to +85°C ....................................... (Lead Free) 10 Pin DFN /TR = Tape and Reel Pack quantity is 3,000 for DFN. Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein ...