V e rs i o n 2. 4, 22 M a r 2 0 1 0 CCM-PFC ICE 2P CS 02 ICE 2P CS 02 G St a n d a l o n e Po w e r F a c to r Co r re c t io n (P F C) C o n tr o lle r i n Co n tin u o u s C o n d u c t io n M o d e (C CM ) wit h I n p u t B ro w n -O u t Pr o te c t io n Powe r M anagem ent & S uppl y N e v e r s t o p t h i n k i n g .
CCM-PFC Revision History: 2010-03-22 Previous Version: V2.3 Page Subjects(major changes since last version) 18&19 Package outline dimension changed Datasheet For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or the Infineon Technologies Companies and Representatives worldwide: see our webpage at http:// www.infineon.com CoolMOS™, CoolSET™ are trademarks of Infineon Technologies AG.
CCM-PFC ICE2PCS02 ICE2PCS02G Standalone Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM) with Input Brown-Out Protection ICE2PCS02 PG-DIP-8 Product Highlights • • • • • • • Leadfree DIP and DSO Package Wide Input Range Direct sensing, Input Brown-Out Detection Optimized for applications which require fast Startup Output Power Controllable by External Sense Resistor Fast Output Dynamic Response during Load Jumps Trimmed, internal fixed Switching Frequency (65kHz) Features • •
CCM-PFC ICE2PCS02/G 1 1.1 1.2 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Representative Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 3.1 3.2 3.3 3.4 3.4.1 3.4.2 3.4.3 3.4.4 3.4.5 3.5 3.
CCM-PFC ICE2PCS02/G Pin Configuration and Functionality 1 Pin Configuration and Functionality 1.1 Pin Configuration Pin ICOMP (Current Loop Compensation) Low pass filter and compensation of the current control loop. The capacitor which is connected at this pin integrates the output current of OTA2 and averages the current sense signal.
CCM-PFC ICE2PCS02/G Representative Block diagram 2 Figure 2 Representative Block diagram Representative Block diagram Version 2.
CCM-PFC ICE2PCS02/G Functional Description 3 Functional Description 3.1 General If VCC drops below 11V, the IC is off. The IC will then be consuming typically 300mA, whereas consuming 10mA during normal operation. The IC can be turned off and forced into standby mode by pulling down the voltage at pin 6 (VSENSE) to lower than 0.6V. In this standby mode, the current consumption is reduced to 300mA.
CCM-PFC ICE2PCS02/G Functional Description . Window Detect VOUT VOUT,Rated Normal Control 108% 100% Max Vcomp current VOUT =rated VOUT 20% 95%rated t 83%rated Supply related t Current related Output related OLP Level-shifted VCOMP av(IIN) UVLO / IBOP PCL / SOC OVP OLP VCOMP Figure 6 t Figure 5 3.4 Protection Features 3.4.1 Input Brown-Out Protection (IBOP) Brown-out occurs when the input voltage VIN falls below the minimum input voltage of the design (i.e.
CCM-PFC ICE2PCS02/G Functional Description 3.4.2 Soft Over Current Control (SOC) The IC is designed not to support any output power that corresponds to a voltage lower than -0.75V at the ISENSE pin. A further increase in the inductor current, which results in a lower ISENSE voltage, will activate the Soft Over Current Control (SOC). This is a soft control as it does not directly switch off the gate drive. It acts on the nonlinear gain block to result in a reduced PWM duty cycle.
CCM-PFC ICE2PCS02/G Functional Description 3.6 Average Current Control From the above equation, DOFF is proportional to VIN. The objective of the current loop is to regulate the average inductor current such that it is proportional to the off duty cycle DOFF, and thus to the input voltage VIN. Figure 11 shows the scheme to achieve the objective. 3.6.1 Complete Current Loop The complete system current loop is shown in Figure 10.
CCM-PFC ICE2PCS02/G Functional Description voltage at pin VCOMP. This block has been designed to support the wide input voltage range (85-265VAC). 3.7 From Full-wave Retifier PWM Logic The PWM logic block prioritizes the control input signals and generates the final logic signal to turn on the driver stage. The speed of the logic gates in this block, together with the width of the reset pulse TOFFMIN, are designed to meet a maximum duty cycle DMAX of 95% at the GATE output.
CCM-PFC ICE2PCS02/G Functional Description VCC Gate Driver PWM Logic HIGH to turn on LV Z1 External MOS GATE * LV: Level Shift ICE2PCS02/G Figure 15 Gate Driver The output is active HIGH and at VCC voltages below the under voltage lockout threshold V CCUVLO, the gate drive is internally pull low to maintain the off state. Version 2.
CCM-PFC ICE2PCS02/G Electrical Characteristics 4 Electrical Characteristics 4.1 Note: Absolute Maximum Ratings Absolute maximum ratings are defined as ratings, which when being exceeded may lead to destruction of the integrated circuit. Parameter Symbol Limit Values min. max. Unit Remarks VCC Supply Voltage VCC -0.3 25 V VINS Voltage VVINS -0.3 9.5 V VINS Current IINS -1 35 uA ICOMP Voltage VICOMP -0.
CCM-PFC ICE2PCS02/G Electrical Characteristics 4.3 Note: 4.3.1 Characteristics The electrical characteristics involve the spread of values within the specified supply voltage and junction temperature range TJ from – 40 °C to 125°C.Typical values represent the median values, which are related to 25°C. If not otherwise stated, a supply voltage of VCC =18V is assumed for test condition. Supply Section Parameter Symbol Limit Values min. typ. Unit Test Condition max. VCC Turn-On Threshold VCCon 11.
CCM-PFC ICE2PCS02/G Electrical Characteristics 4.3.3 System Protection Section Parameter Symbol Limit Values min. typ. Unit Test Condition max. Open Loop Protection (OLP) VSENSE Threshold VOLP 0.55 0.6 0.65 V Peak Current Limitation (PCL) ISENSE Threshold VPCL -1.16 -1.04 -0.95 V Soft Over Current Control (SOC) ISENSE Threshold VSOC -0.75 -0.68 -0.61 V Output Over-Voltage Protection (OVP) VOVP 3.1 3.25 3.4 V Input Brown-out Protection (IBOP) High to Low Threshold VVINSL 0.
CCM-PFC ICE2PCS02/G Electrical Characteristics 4.3.5 Voltage Loop Section Parameter Symbol Limit Values min. OTA1 Reference Voltage typ. Unit Test Condition max. VOTA1 2.92 3.00 3.08 V OTA1 Transconductance Gain GmOTA1 26 39 51 mS OTA1 Max. Source Current Under Normal Operation IOTA1SO 18 30 38 mA VVSENSE= 2V VVCOMP= 3V OTA1 Max. Sink Current Under Normal Operation IOTA1SK 21 30 41 mA VVSENSE= 4V VVCOMP= 3V VHi VLo 3.09 2.76 3.18 2.85 3.26 2.
CCM-PFC ICE2PCS02/G Electrical Characteristics 4.3.6 Driver Section Parameter Symbol GATE Low Voltage Limit Values min. typ. max. - - 1.2 V VCC =10V IGATE = 5 mA 1.5 V VCC =10V IGATE =20 mA VGATEL - GATE High Voltage Unit Test Condition VGATEH - 0.4 - V IGATE = 0 A - - 1.0 V IGATE = 20 mA -0.2 0 - V IGATE = -20 mA - 14.8 - V VCC = 25V CL = 4.7nF - 14.8 - V VCC = 19V CL = 4.7nF 7.8 9.2 - V VCC = VVCCoff + 0.2V CL = 4.
CCM-PFC ICE2PCS02/G Outline Dimension 5 Outline Dimension PG-DIP-8 Outline Dimension Version 2.
CCM-PFC ICE2PCS02/G Outline Dimension PG-DSO-8 Outline Dimension Version 2.
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