SP7612 EXAR [Exar Corporation], SP7612 Datasheet
SP7612
Related parts for SP7612
SP7612 Summary of contents
Page 1
... The SP7612/4 provides a simple solution for a matched current source for any color LED. The current in the LEDs can be programmed by an external resistor. The SP7612 is capable of driving three LEDs, while the SP7614 can drive two LEDs. LED1 should always be connected to an LED and never left open in order to have the other LEDs driven with a matched current to LED1 ...
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... Note 1: Output current Multiplication Ratio (I performance characteristics on pages 4 through 7. Note 2: ENABLE "ON" where I ON/OFF ENABLE "OFF" where I < 1μ > 0.3V. Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver =85°C.............................................................................. 190mW A ♦ , denotes the specifications which apply over the IN ...
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... GND ENABLE Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 DESCRIPTION SP7614 ...
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... LED current vs Rset for LED voltage (Vcathode) LED current vs Cathode voltage (VLED) Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 SP7612 TYPICAL PERFORMANCE CHARACTERISTICS Vcontrol set to 3V © 2008 EXAR Corporation Page 4 ...
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... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 SP7612 TYPICAL PERFORMANCE CHARACTERISTICS Iset vs Control pin voltage LED current vs Enable voltage Iset at .5V VLED(cathode voltage) Page 5 © 2008 EXAR Corporation ...
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... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 © 2008 EXAR Corporation Page 6 ...
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... LED current vs Cathode voltage (VLED) Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 SP7614 TYPICAL PERFORMANCE CHARACTERISTICS Iset vs Control pin voltage Page 7 © 2008 EXAR Corporation ...
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... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 LED current vs Enable voltage Iset at .5V VLED(cathode voltage) Page 8 © 2008 EXAR Corporation ...
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... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 © 2008 EXAR Corporation Page 9 ...
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... CTRL find R . The gain is not linear, the LED current SET vs. Cathode voltage graph needs to be used to determine gain. Typically, the gain is ~870 for SP7614 and ~435 for SP7612 when the part is operating in the linear region SET CONTROL - CTRL ...
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... Drivers utilize existing bus. 3) Ultra-low voltage drop provides the full 20mA LED current at the lowest possible voltage level. LED Brightness Control The SP7612/4 LED Drivers feature analog and PWM controls to give designers flexible brightness control. To determine the value of , use the "I ...
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... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 © 2008 EXAR Corporation Page 12 BLOCK DIAGRAMS ...
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... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 PACKAGE: 6 PIN SC-70 © 2008 EXAR Corporation Page 13 ...
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... Yes Tape & Reel customersupport@exar.com http://www.exar.com/TechDoc/default.aspx? Exar Corporation Headquarters and Sales Office 48720 Kato Road Fremont, CA 94538 main: 510-668-7000 fax: 510-668-7030 SP7612/7614 Low Dropout Linear LED driver Page 14 SP7612 SP7614 ORDERING INFORMATION Pack Status Quantity Any Active 3000 Active Any ...