RT9363A RICHTEK [Richtek Technology Corporation], RT9363A Datasheet
RT9363A
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RT9363A Summary of contents
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... Channels 90mA x1/x2 Charge Pump White LED Driver General Description The RT9363A is a compact, high efficient and highly integrated charge pump white LED driver. It maintains the highest efficiency by utilizing a x1/x2 fractional charge pump and low dropout current regulators. The RT9363A supports white LEDs and regulates a constant current for uniform intensity ...
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... SET 9 ISET 2.2uF LED1 LED2 10 EN GPIO LED3 6 GND VOUT = 15 to 30mA, for 3-WLEDs Application Circuit SET(MAX VIN RT9363A SET 9 ISET 2.2uF LED1 LED2 10 EN GPIO LED3 6 GND VOUT = 15 to 30mA, for 2-WLEDs Application Circuit SET(MAX ...
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... Ground. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. Input Voltage. Output Voltage Source for LED1~3. LED Current Adjust Input. Chip Enable (Active High). 2ms < T SHDN 100% 15/16 Shutdown 2/16 1/16 Pin Function RT9363A ). www.richtek.com 3 ...
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... RT9363A Function Block Diagram VIN EN ISET www.richtek.com OVP Soft Start Circuit 1MHz Gate Driver OSC Current Mode Decision Min VDS Bias UVLO 16 Steps Pulse Dimming Controller Shutdown Delay Current Source R SET R SET Selection VOUT + Vr1 - LED1 LED2 LED3 GND DS9363A-03 April 2011 ...
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... I X2 Mode No Load Qx2 0V SHDN IN I 100% Setting LED-ERR I 100% Setting LED-LED-ERR F OSC V = 3.5V OUT Falling IN Open Circuit at any LED Pin V OVP RT9363A = 20mA, ESR = 0.03Ω 25°C, unless otherwise A Min Typ 2 1 −8 -- − 1000 = 60mA -- 3 ...
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... RT9363A Parameter Digital Input Logic-High V EN Threshold Voltage Logic-Low V Logic-High I EN Current Logic-Low I EN Low to Shutdown Delay EN High Time for Dimming EN High Time for Holding Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for stress ratings ...
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... Temperature x1 Mode Quiescent Current vs. Temperature 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0 3.5V IN 0.6 -40 -30 -20 - Temperature DS9363A-03 April 2011 4.4 4.8 5.2 5.6 (°C) (°C) RT9363A LED Current vs. Input Voltage LED 2.8 3.2 3.6 4 4.4 Input Voltage (V) x2 Mode LED Current vs. Temperature LED2 ...
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... RT9363A Shutdown Current vs. Temperature 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 3.5V IN 0.0 -40 -30 -20 - Temperature x1 Mode Inrush Current Response EN (5V/Div) V OUT (1V/Div) CN (2V/Div (100mA/Div) Time (250us/Div) x1 Mode Dimming Operation EN (2V/Div) I LED (10mA/Div) Time (5ms/Div) www.richtek.com 8 1200 1000 800 600 400 200 0 (°C) ...
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... DS9363A-03 April 2011 Protection The RT9363A includes a soft start circuit to limit the inrush current at power on and mode transition. Soft start circuit holds the input current level long enough for output capacitor C ...
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... When EN pin is low, the white LED for backlighting is turned off and draws a very low current from battery supply. When EN pin is high, RT9363A provides a twice mode load switch (x1) and high efficiency (x2) charge pump device intended for white LED backlight applications. To maximize ...
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... W-Type 10L DFN 3x3 Package Richtek Technology Corporation Taipei Office (Marketing) 5F, No. 95, Minchiuan Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)86672399 Fax: (8862)86672377 Email: marketing@richtek.com RT9363A 2 1 DETAIL A Pin #1 ID and Tie Bar Mark Options Dimensions In Inches Min Max 0.028 ...