LDS8620002-T2 Leadis Technology, LDS8620002-T2 Datasheet
LDS8620002-T2
Specifications of LDS8620002-T2
Related parts for LDS8620002-T2
LDS8620002-T2 Summary of contents
Page 1
... LEDs. The inclusion of a 1.33x fractional charge pump mode and ultra low dropout PowerLite™ Current TYPICAL APPLICATION CIRCUIT © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY Regulator increases device’s efficiency up to 95%. ...
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... EN/SET Pin High Logic Level Low Thermal Shutdown Thermal Hysteresis, T SD_HS Under Voltage Lockout (UVLO) Threshold Over Voltage Protection © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY Rating 6 6.5 Vin + 0.7V -65 to +160 -40 to +125 300 Rating 2.7 to 5.5 ...
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... Off Note: If bits Bit0 – Bit1 are set to zero, the corresponding LED bank is disabled. © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY Conditions Description Bits Output Configuration 2 Global Current Setting* 6 LED A Current Setting 6 LED B Current Setting 6 Return Lockout 1 ...
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... Leadis Technology Characteristics subject to change without notice PRELIMINARY Data Reg2-4 value LED Current, Pulses (binary 011111 48 34 011110 46.5 35 011101 45 36 011100 43.5 37 011011 ...
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... LEADIS TECHNOLOGY CONFIDENTIAL LDS8620 PROGRAMMING EXAMPLES Programming 2 LEDs to 96 mA/output © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY 5 Doc. No. 8620DS, Rev. 0.4 ...
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... EN/SET pin must be held low for more than 1.5ms 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 PRELIMINARY Function capacitor is required between the Vout pin and μ F ground near the device. ...
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... If the input voltage is insufficient or falls to a level where Vd ≤50 mV, and the regulated currents cannot be maintained, the low dropout PowerLite™ Current © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY Figure 2. LDS8620 Functional Block Diagram Regulator switches the charge pump into 1.33x mode (after a fixed delay time of about 800 μ ...
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... The device can however move from 1x to 1.33x 1.5x and 2x if the input voltage is not sufficient to drive the programmed LED currents. © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY REG5 also triggers the internal charge pump. This ...
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... Vin x 1.33 and so on. If the voltage source is a Li-ion battery, we recommend selecting LED with V 3 extend the battery life and achieve highest efficiency. © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY External Components The LDS8620 requires two external 1µF ceramic capacitors (X5R or X7R type) for decoupling input, output, and two 0.22 µ ...
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... D1 1.40 1.55 1.70 E 2.90 3.00 3.10 E1 1.40 1.55 1.70 e 0.50 typ L 0.35 0.40 0.45 Note: 1. All dimensions are in millimeters 2. Complies with JEDEC Standard MO-220 © 2008 Leadis Technology Characteristics subject to change without notice PRELIMINARY 10 Doc. No. 8620DS, Rev. 0.4 ...
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... The standard lead finish is Matte-Tin. 3) The device used in the above example is a LDS8620 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 PRELIMINARY ...
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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 " ...