LDS8868002-T2 Leadis Technology, LDS8868002-T2 Datasheet
LDS8868002-T2
Specifications of LDS8868002-T2
Related parts for LDS8868002-T2
LDS8868002-T2 Summary of contents
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... DESCRIPTION The LDS8868 is a high efficiency multi-mode fractional charge pump with ultra low dropout voltage that can drive up to six LEDs. Inclusion of an ultra low TYPICAL APPLICATION CIRCUIT © 2008 Leadis Technology Characteristics subject to change without notice dropout PowerLite™ Current increases device’ ...
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... Transition Thresholds at any LED pin 1. Mode Transition Hysteresis Transition Filter Delay Input Leakage EN/DIM Pin High Logic Level Low Thermal Shutdown Thermal Hysteresis Under Voltage Lockout (UVLO) Threshold Over Voltage Protection © 2008 Leadis Technology Characteristics subject to change without notice Rating Unit 0. -65 to +160 °C -40 to +125 ° ...
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... Table 2. Reg1 Code Data Reg1 Bit Data pulses pulses Note: If bits Bit0 – Bit2 are set to zero, the corresponding LED bank is disabled. © 2008 Leadis Technology Characteristics subject to change without notice Conditions Description Bits Return to 1x mode 1 Reg1 Bit Data pulses ...
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... Leadis Technology Characteristics subject to change without notice LED Current, Data Reg2-5 value mA, IMODE = 1 Pulses (binary) 33 0.5 011111 34 32 011110 35 31.5 011101 31.0 36 011100 37 30.5 011011 30 38 ...
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... LDS8868 PROGRAMMING EXAMPLES Programming 6 LEDs to 32mA Programming 6 LED to 1mA © 2008 Leadis Technology Characteristics subject to change without notice 5 Doc. No. 8868_DS, Rev. 2.1 ...
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... V = 3.6V 120mA (6 LEDs at 20mA OUT Efficiency vs. Input Voltage Switching Frequency vs. Temperature Power-Up in 1.5x Mode EN/SET V OUT ILED 100mA/div © 2008 Leadis Technology Characteristics subject to change without notice = 0.22 μ 1μ 25°C unless otherwise specified OUT AMB LED Current Change vs. Temperature EN/SET ...
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... LDS8868 Power-Down Delay (1x Mode) EN/SET V OUT ILED 100mA/div Operating Waveforms in 1.5x Mode OUT ILED 100mA/div © 2008 Leadis Technology Characteristics subject to change without notice Operating Waveforms in 1x Mode OUT ILED 100mA/div Operating Waveforms in 2x Mode OUT ILED 100mA/div 7 Doc. No. 8868_DS, Rev. 2.1 ...
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... V is the charge pump output that is connected to OUT the LED anodes. A small 1 μ F ceramic bypass © 2008 Leadis Technology Characteristics subject to change without notice Function capacitor is required between the Vout pin and μ F ground near the device. GND is the ground reference for the charge pump. ...
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... LED with highest forward voltage), the Mode Control Block changes charge pump mode to the next multiplication ratio. © 2008 Leadis Technology Characteristics subject to change without notice Vd (LEDX1/ Charge Pump Output Resistance at given mode, ...
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... If IMODE equals 1, the high current range is selected up to 32mA. If IMODE is set to 0, all currents are divided by 8. Each bank of LEDs © 2008 Leadis Technology Characteristics subject to change without notice ( can be turned on independently by setting the respective bit ENA, ENB, ENC to 1. ...
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... C2) X5R or X7R type. Capacitors C1 and C2 may be increased µF to improve charge pump efficiency by 3%. In all charge pump © 2008 Leadis Technology Characteristics subject to change without notice modes, the input current ripple is very low, and an input bypass capacitor of 1µF is sufficient. ...
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... L 0.325 0.375 m 0.150 typ n 0.225 typ Note: 1. All dimensions are in millimeters 2. Complies with JEDEC Standard MO-220 © 2008 Leadis Technology Characteristics subject to change without notice MAX 0.80 0.05 0.228 0.30 3.05 1.75 3.05 1.75 0.425 12 Doc. No. 8868_DS, Rev. 2.1 ...
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... The standard lead finish is Matte-Tin. 3) The device used in the above example is a LDS8868A 002–T2 (3x3 TQFN, Tape & Reel). 4) For additional package and temperature options, please contact your nearest Leadis Technology Sales office. © 2008 Leadis Technology Characteristics subject to change without notice Package ...
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... Leadis Technology products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Leadis Technology product could create a situation where personal injury or death may occur. Leadis Technology reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled " ...