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FAN5616 Evaluation Board User Manual
FAN5616 Evaluation Board User Manual
5.5V Input Range 60mA Output Current (3x20mA) Adaptive VOUT Adjustment Highest Diode Voltage External Resistor Maximum Current Short Circuit Protection, Shutdown Mode Soft Start 1MHz Operating Frequency Efficiency Small 16-lead 3x3mm Package
Figure FAN5616 HMPX
Description:
FAN5616 Evaluation Board compact circuit including FAN5616 HMPX package 0.47uF bucket capacitors which maintain constant current through LEDs different pump regulator modes. small capacitors provide stable input/output current three Fairchild's super bright white LEDs. FAN5616 demo board, completely assembled tested surface mount board, provides easy probe access points inputs outputs that electrical characteristics waveforms easily measured.
Figure Schematic Diagram
©2007 Fairchild Semiconductor Corporation FAN5616 Version www.fairchildsemi.com
Where Begin:
Connect Battery (2.7 5.5V) (0V). change current fraction maximum value jumpers EN2. EN2, sets current Full value. EN2, sets current maximum value. EN2, sets current maximum value EN2, sets current (Note: RSET chosen maximum current (100%) 15mA. resistor changed 15.6K, 31.2K 62.4K which would maximum current 10mA, 2.5mA respectfully) Each current measured removing jumpers through respectfully applying current meter. total current measured removing JP1. Observe that current constant regardless Battery input voltage that current affected varying numbers LEDs. Observe that supply current changes steps when battery voltage reaches threshold mode changes. (Note: Replacing provided LEDs with other types affect input voltage threshold values where transition modes occur) verify supply current "ON" "OFF" modes, observe that shutdown mode, supply current will drop below Battery input. verify dimming, apply signal with tied low, with tied low, (See datasheet). Observe that average current directly proportional duty cycle. measure clock frequency, connect scope probe bucket capacitors C3+, C3-, C48: Observe that circuit protected from open load conditions verifying output voltage Vout
FAN5616 Evaluation Board User Manual
(Overlay)
(Top)
Figure Layout
(Bottom)
Figure Start-Up Waveform
©2007 Fairchild Semiconductor Corporation FAN5616 Version www.fairchildsemi.com
Table FAN5616 List Materials
Description Capacitor 4.7uF/10V Capacitor 1uF/10V Bucket 0.47 uF/10V Bucket 0.47 uF/10V White White White Header, 2-Pin Header, 3-pin Resistor /0.16W Regulator Shunt Ref. Gnd, EN1, EN1, Footprint 0805 0805 0805 0805 White White White HDR1X2 HDR1X3 0603 3x3MLP Part Number HT-T169TW HT-T169TW HT-T169TW FAN5616HMPX Vendor
FAN5616 Evaluation Board User Manual
Harvatek Harvatek Harvatek
Fairchild
Table Ordering Information
Product Number FAN5616 Package Type 16-Lead 3x3mm Order Code FAN5616HMPX
©2007 Fairchild Semiconductor Corporation FAN5616 Version
www.fairchildsemi.com
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