Transition Mode PFC controller ADT6011 Transition Mode PFC controller ADT6011 DESCRIPTION The ADT6011 is a transition mode PFC controller IC and it is very high power factor controller for Pre regulator and LED Lighting applications. It can operate with wide input voltage range from 90V to 270VAC. It supports flyback topology and achieves very high power factor. The internal linear multiplier is able to reduce AC input current distortion, and operates with very low THD. SOP-8 The output voltage is controlled by feedback with 1% precise internal voltage reference. It provides very accuracy overvoltage protection . FEATURES APPLICATIONS • Transition Mode operation • PFC pre-regulator • Low startup current ( 10uA ) • LED lighting • Trimmed 1% Internal reference voltage -. Single stage high PF Flyback AC/DC SMPS • Internal startup timer -. Single stage offline LED driver • Internal Leading edge blanking -. LED lighting power • Cycle-by-Cycle current limit • Under Voltage Lockout • Very accurate output overvoltage protection • Totem pole gate driver with voltage clamp • High Power factor ( >0.95 ) and Low THD ( < 20% ) * Base TM PFC mode * This specifications are subject to be changed without notice Dec. 18. 2013 / Rev. 0.0 1/5 http://www.ad-tech.co.kr Transition Mode PFC controller ADT6011 TYPICAL APPLICATION AC snubber MULT VCC • ZCD INV GD ADT6011 • • LED • F/B Q1 CS GND COMP ABSOLUTE MAXIMUM RATINGS (Ta = 25oC) PARAMETER SYMBOL RATING UNIT Ground Voltage GND -0.3 V Power Voltage VCC 40 V Gate Driver Output OUT 18 V INV,COMP,MULTI,ZCD 6 V Power Dissipation PD 0.64 W Junction Temperature Tj -40 ~ 150 ℃ Storage Temperature Tstg -65 ~ 150 ℃ Thermal Resistance θJA 150 ℃/W All other pins * This specifications are subject to be changed without notice Dec. 18. 2013 / Rev. 0.0 2/5 http://www.ad-tech.co.kr Transition Mode PFC controller ADT6011 ELECTRICAL CHARACTERISTICS (VCC = 20V, Ta=25°C, Co = 1nF; unless otherwise specified) Spec Items Symbol Parameter Condition Unit ADT6011 Min Typ Max supply current supply voltage Istartup start up Before turn on, VCC=11V uA - 10 40 Iq quiescent After turn on, no switching mA - 1.2 4.5 Icc Switching @ 70khz mA - 3.5 6 VCC Operating voltage V 11 - 37 UVLO(IC ON) Start up threshold V - 16 - UVLO(IC OFF) UVLO V 9 10 11 Hys UVLO hysteresis V 5 6 7 V 37 38.5 40 OVP Error Amp Over voltage protection Vref EA reference Ta=25°C Gv(*) Voltage gain Open loop Gb(*) Gain bandwidth Icomp Vcomp Static OVP Multiplier CS Comp Zero Current Detector Startup Timer Gate Drive V 2.475 2.5 2.525 dB - 80 - Mhz - 1 - Source current V(COMP)=3.6V, V(INV)=2.4V mA -3 -10 -17 Sink current V(COMP)=3.6V, V(INV)=2.6V mA 3 10 17 Upper clamp voltage Isource=0.5mA V 5.3 5.8 6.3 Low clamp voltage Isink=0.5mA V 1.3 1.6 1.9 SOVP Static OVP threshold voltage V 2.1 2.25 2.4 Vmulti Linear operating range V 0~3 ΔVcs/Δvmulti Output max. slope K Gain Vcs CS reference clamp Tleb LEB Vzcd_upper Upper clamp voltage Vzcd_lower Lower clamp voltage Vzcda(*) V(MULT)=0 to 0.5V, V(COMP)=Upper clamp V(MULT)=1 to 2V, V(COMP)=3.5V V(COMP)=4V, V(MULT)=4V V/V 1.0 - - 1.1 - 1/V 0.27 0.35 0.49 V 0.92 1 1.08 ns - 200 - I(ZCD)=2.5mA V 5.1 5.8 6.6 I(ZCD)=-2.5mA V - 0 - Arming voltage(posedge) V - 1.4 - Vzcdt(*) Triggering voltage(negedge) V - 0.7 - Tstart Re-start timer period us 60 Vol Low output voltage Io=100mA V - 0.6 1.2 Voh High output voltage Io=-50mA V 12 14 - Tr Rising time Cl=1nF ns - 60 110 Tf Falling time Cl=1nF ns - 30 70 120 200 Note 1 : The parameter is guaranteed by design. It is not tested in production. * This specifications are subject to be changed without notice Dec. 18. 2013 / Rev. 0.0 3/5 http://www.ad-tech.co.kr Transition Mode PFC controller ADT6011 PIN DESCRIPTION Pin No. Pin Name Description 1 INV 2 COMP Output of Error amplifier. The compensation network is placed between INV and COMP pin. 3 MULT Main input of the multiplier. Connected to the rectified main voltage via a resistor divider and provides the sinusoidal reference to the current loop. 4 CS 5 ZCD Zero Current Detection input. A negative edge triggers MOSFET’ turn on. 6 GND Ground. 7 GD 8 VCC Inverting input of the error amplifier. Current sense input and one input of internal PWM comparator. Gate driver output. Supply voltage input. BLOCK DIAGRAM VCC 40V 2.6V INVOVP Vref UVLO ZCD 5.8V 1.4V/0.7V 2.25V SOVP INV Lower clamp VCCOVP Vref VCC 2.5V COMP 5.8V MULT Starter Lower clamp Multiplier & THD optimizer 15V GD 1V LEB INVOVP UVLO SOVP VCCOVP S Q R Driver OTP GND CS * This specifications are subject to be changed without notice Dec. 18. 2013 / Rev. 0.0 4/5 http://www.ad-tech.co.kr Transition Mode PFC controller ADT6011 PACKAGE DIMENSTION * This specifications are subject to be changed without notice Dec. 18. 2013 / Rev. 0.0 5/5 http://www.ad-tech.co.kr