FAN5610MPX Fairchild Semiconductor, FAN5610MPX Datasheet
FAN5610MPX
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FAN5610MPX_NL
FAN5610MPX_NLTR
FAN5610MPX_NLTR
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FAN5610MPX Summary of contents
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... LCD Display Modules Keyboard Backlight LED Displays Ordering Information Part Number Operating Temperature Range FAN5610MPX All packages are lead free per JEDEC: J-STD-020B standard. © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 Description The FAN5610 generates matched current source drives for a maximum of four LEDs ...
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... Pin Definitions Pin Name Description D1 Cathode of Diode No.1 D2 Cathode of Diode No DAC Input B, Active High IN A DAC Input A, Active High V Input Voltage IN D3 Cathode of Diode No Cathode of Diode No. 4 GND Ground © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 Figure 1. Pin Configuration 2 www.fairchildsemi.com ...
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... Symbol Parameter I Supply Current, OFF Mode IN I Output Current Accuracy OUT I LED to LED Current Matching MATCH V DAC Input Voltage Threshold IN_DAC Peak Efficiency © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 Parameter Parameter Conditions > 0.3V 3.6V LOW HIGH LED 20mA ...
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... Block Diagram V IN Bandgap Reference © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0 Error Amp 2-bit DAC + Error Amp Figure 2. Block Diagram Error Amp Error Amp GND www.fairchildsemi.com ...
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... Figure 3. LED Current vs. Input Voltage (Low V – White LED) F Figure 5. LED Current vs. Temperature Figure 7. DAC Transient Response © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 = 25°C and using Fairchild QTLP670IW Super Bright LED. Figure 4. LED Current vs. Cathode Voltage 5 Figure 6. Line Transient Response ...
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... Proportionally select the duty cycle to achieve a typical LED current between 8mA to 20mA. © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 Digital Control with PWM Any pin can be modulated by a variable duty cycle (δ) pulse train. Care should be taken not to use too low a frequency, otherwise a fl ...
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... V and V IN 0.35V, is shown in Figure 11. Figure 11. Current Regulation Performance © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 δ (average 21mA, where LED Program the LED’s brightness by applying a continuous voltage level or a PWM signal at the inputs of the built- in digital to analog converter (DAC) ...
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... No boost circuit needed for the LCD or keyboard backlight Driver directly connected to a Li-ion battery No EMI, no switching noise, no boost efficiency lost, no capacitor, no inductor © 2003 Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 Example 2: Drive high V existing bus from 4.0V to 5.5V LEDs, and utilizing the ...
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... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...
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... Fairchild Semiconductor Corporation FAN5610 • Rev. 1.0.3 10 www.fairchildsemi.com ...