AP1661A

Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR General Description The AP1661A is an active power factor control IC which is designed mainly for use as pre-converter in electronic ballast, AC-DC adapters and off-line SMPS applications. The AP1661A includes an internal start-up timer for stand-alone applications, a one-quadrant multiplier to realize near unity power factor and a zero current detector to ensure DCM boundary conduction operation. The totem pole output stage is capable of driving power MOSFET with 600mA source current and 800mA sink current. Designed with advanced BiCMOS process, the AP1661A features low start-up current, low operation current and low power dissipation. The AP1661A also has rich protection features including over-voltage protection, input under-voltage lockout with hysteresis and multiplier output clamp to limit maximum peak current. The AP1661A meets IEC61000-3-2 standard even at one-quadrant load and its THD is lower than 10% at high-end line voltage and full load. This IC is available in SOIC-8 and DIP-8 packages. AP1661A Features · · · · · · · · · · · Comply with IEC61000-3-2 Standard Proprietary Design for Minimum THD Zero Current Detection Control for DCM Boundary Conduction Mode Adjustable Output Voltage with Precise OverVoltage Protection Ultra-low Startup Current: 30µA Typical Low Quiescent Current: 2.5mA Typical Precision Internal Reference Voltage: 1% Internal Startup Timer Disable Function for Reduced Current Consumption Totem Pole Output with 600mA Source Current and 800mA Sink Current Capability Under-voltage Lockout with 2.5V of Hysteresis Applications · · · AC-DC Adapter Off-line SMPS Electronic Ballast SOIC-8 DIP-8 Figure 1. Package Types of AP1661A Jul. 2009 Rev. 1. 0 1 BCD Semiconductor Manufacturing Limited Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR Pin Configuration AP1661A M Package (SOIC-8) P Package (DIP-8) INV COMP MULT CS 1 2 3 4 8 7 6 5 INV VCC GD GND ZCD COMP MULT CS 1 2 3 4 8 7 6 5 VCC GD GND ZCD Figure 2. Pin Configuration of AP1661A (Top View) Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name INV COMP MULT CS ZCD GND GD VCC Output of the error amplifier Input of the multiplier Input of the current control loop comparator Zero current detection input. If it is connected to GND, the device is disabled Ground. Current return for gate driver and control circuits of the IC Gate driver output Supply voltage of gate driver and control circuits of the IC Function Inverting input of the error amplifier Jul. 2009 Rev. 1. 0 2 BCD Semiconductor Manufacturing Limited Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR Functional Block Diagram COMP 2 2.5V MULT 3 Multiplier 4 CS AP1661A INV 1 Voltage Regulation VCC 8 Over Voltage Detection RQ S VCC Internal R1 Supply 7V UVLO R2 Vref Zero Current Detector 7 Driver GD 2.1V 1.6V Starter Disable 5 ZCD 6 GND Figure 3. Functional Block Diagram of AP1661A Ordering Information AP1661A G1: Green Circuit Type Package M: SOIC-8 P: DIP-8 Package SOIC-8 DIP-8 Temperature Range -40 to 85oC -40 to 85oC Part Number AP1661AM-G1 AP1661AMTR-G1 AP1661AP-G1 TR: Tape and Reel Blank: Tube Marking ID 1661AM-G1 1661AM-G1 AP1661AP-G1 Packing Type Tube Tape & Reel Tube BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green. Jul. 2009 Rev. 1. 0 3 BCD Semiconductor Manufacturing Limited Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR Absolute Maximum Ratings (Note 1) Parameter Power Supply Voltage Operating Supply Current Driver Output Current Input/Output of Error Amplifier, Input of Multiplier Current Sense Input Zero Current Detector Input Thermal Resistance Junction-Ambient Power Dissipation and Thermal Characteristics @ TA=50oC Operating Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10 Seconds) ESD (Human Body Model) ESD (Machine Model) Symbol VCC ICC IOUT VINV, VCOMP, VMULT VCS IZCD RθJA PTOT TJ TSTG TLEAD Source Sink DIP-8 SOIC-8 DIP-8 SOIC-8 -40 to150 -65 to 150 260 3000 300 Value 20 30 Unit V mA mA V V -50 10 100 150 1 0.65 W oC oC o AP1661A ±800 -0.3 to 7 -0.3 to 7 mA oC/W C V V Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Jul. 2009 Rev. 1. 0 4 BCD Semiconductor Manufacturing Limited Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR Electrical Characteristics VCC=14.5V, TA=-25oC to 125oC, unless otherwise specified. Parameter Turn-on Threshold Turn-off Threshold Hysterisis VCC Operating Range Total Supply Section Start-up Current Operating Supply Current Quiescent Current Quiescent Current VCC Zener Voltage Error Amplifier Section Voltage Feedback Input Threshold Line Regulation Input Bias Current Voltage Gain Gain Bandwidth Output Voltage Upper Clamp Voltage Lower Clamp Voltage Source Current Sink Current IINV GV GB VCOMP-H VCOMP-L ICOMP-H ICOMP-L VINV-TH VMULT ISOURCE=0.5mA ISINK=0.5mA VCOMP=4V, VINV=2.4V VCOMP=4V, VINV=2.6V -2 2.5 400 0 to 3 VMULT: 0 to 0.5V, VCOMP=Upper Clamp Voltage VMULT=1V, VCOMP=4V 0.45 VINV TA=25oC 10.3V