--_003_CACZQxzOXp0BiedSQZeF1sObrrDNxqkraS57d8qmwiEnTyCgAmailgm_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Offline LED controller IC with power factor control > 0.9 and TRIAC dimmabl= e. reference designs provided. Electrolytic free designs. 7 versions with 6W - 50W range over 85-308 VAC input range. Isolation and sensing with 3rd transformer winding rather than optical. http://www.powerint.com/en/products/linkswitch-family/linkswitch= -ph?AdSource=3DeDMen&elq=3Dd8e8d46faf534d5681c60a44e38bcc3e&elqCampaignId= =3D97 Russell _____________________ Description LinkSwitch-PH dramatically simplifies implementation of LED drivers requiring Power Factors greater than 0.9, TRIAC dimming, and high efficiency. This highly integrated controller introduces a new control technique that provides very high power factor and accurate output current control, and eliminates passive circuitry required for power factor correction, optocoupler and secondary current control circuitry. Each device incorporates a 725V power MOSFET, a continuous-mode PWM controller, a high voltage switched current source for self biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry into a monolithic IC. Product Highlights Dramatically Simplifies Off-line LED Drivers Single-stage power factor correction and accurate constant current (CC) out= put Flicker-free, phase-controlled TRIAC dimming Eliminates optocoupler and all secondary current control circuitry Eliminates all control loop compensation circuitry Simple primary-side PWM dimming interface Universal input voltage range Enables designs that are electrolytic-free Accurate and Consistent Performance Fast start-up time Compensates for transformer inductance tolerances Compensates for line input voltage variations Frequency jittering greatly reduces EMI filter size and costs Advanced Protection and Safety Features Auto-restart for short circuit protection Open circuit fault detection mode Automatic thermal shutdown or restart with hysteresis Meets high voltage creepage requirement between DRAIN and all other signal pins both on PCB and at package EcoSmart=AE - Energy-Efficiency Technology Low standby power remote ON/OFF feature (< 50 mW at 230 VAC) No current sense resistors - maximizes efficiency High efficiency operation, >85% achievable Green Package Halogen free and RoHS compliant package --_003_CACZQxzOXp0BiedSQZeF1sObrrDNxqkraS57d8qmwiEnTyCgAmailgm_ Content-Type: image/gif; name="PH_schematic.gif" Content-Description: PH_schematic.gif Content-Disposition: attachment; filename="PH_schematic.gif"; size=6850; creation-date="Thu, 08 Sep 2011 12:52:10 GMT"; modification-date="Thu, 08 Sep 2011 12:52:10 GMT" Content-Transfer-Encoding: base64 R0lGODlhXgHTAMQAAP///+/v797e3tLS0s7OzsHBwb29vbGxsaCgoJCQkICAgG9vb19fX05OTkJC Qj4+PjExMS0tLSEhIRAQEAAAAP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEH ABUALAAAAABeAdMAAAX/ICWOZGmeaKqubOu+cCzPdG3feK5XfO//wKBwSCwaj8ikcslsOp/QqHQa FVGv2Kx2y+16v+CgNUwum8/otLpKWbvfcHPBUYjbneO7fs9HFkQNAj0OCn2GFXmHiotxfwYSFAwB FYSMeomWUAgQDgNnCxILTAENEgmZQX8AAAgTEwoQhU4HDpJrAw4NnmGYagIKwMHCw8TFxgoTIoTH zM3HDCMMzsMOI9PXw4I8nQiiPAIJCAXj5OXm5+MJFKsAAciR6PHnyfDy9vf445AUdPnnTL3SFGDg 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