ver: 0.1 dec 28, 2009 tel: 886-3-5788833 http://www.gmt.com.tw 1 G5991 global mixed-mode technology inc. high current led driver features ? high pwm dimming ratio ? current mode operation ? +/-2% voltage reference ? programmable switching frequency ? programmable slope compensation ? programmable current limit ? +0.2a/-0.4a gate driver ? output short circuit protection ? output over voltage protection ? led light bar short protection ? thermal shutdown ? available in sop-16 package applications ? tv general description the G5991 is current mode control led driver ic de- signed to control single switch pwm converter in a constant frequency. external current sense resistor and slope compensation resistor make it flexible for various applications. a pwm dimming input controls a duty ratio from 0% to 100% with frequency up to few kilo- hertz. the G5991 includes hiccup protection from both short and open circuits, with automatic recovery after the fault condition is cleared. the G5991 is available in a sop-16 package. ordering information order number marking temp. range package (green) G5991p31u G5991 -40 c to +85 c sop-16 note: p3: sop-16 1 : bonding code u : tape & reel pin configuration typical application circuit
|
