ICE2PCS01GXUMA1

V er s io n 2.3 , 2 2 M ar c h 2 01 0 CCM-PFC ICE 2 PCS 0 1 ICE 2 PCS 0 1G St a n d a lo n e P o w e r F a ct o r Co r r e c tio n ( P FC ) C o n tr o lle r in Co n ti n u o u s Co n d u c t io n Mo d e ( CC M ) Po we r M a na g e me n t & Su p ply N e v e r s t o p t h i n k i n g . CCM-PFC Revision History: 2010-03-22 Datasheet Previous Version: V 2.1 Page 18&19 Subjects (major changes since last revision) Package outline dimension changed 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 CoolMOST™, CoolSET™ are trademarks of Infineon Technologies AG. Edition 2010-03-22 Published by Infineon Technologies AG 81726 München, Germany © 2007 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. CCM-PFC ICE2PCS01 ICE2PCS01G Standalone Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM) ICE2PCS01 PG-DIP-8 Product Highlights • • • • • • • Leadfree DIP and DSO Package Wide Input Range Optimized for applications which require fast Startup Output Power Controllable by External Sense Resistor Programmable Operating Frequency Output Over-Voltage Protection Fast Output Dynamic Response during Load Jumps ICE2PCS01G PG-DSO-8 Features Description • • • • The ICE2PCS01/G is a 8-pin wide input range controller IC for active power factor correction converters. It is designed for converters in boost topology, and requires few external components. Its power supply is recommended to be provided by an external auxiliary supply which will switch on and off the IC. The IC operates in the CCM with average current control, and in DCM only under light load condition. The switching frequency is programmable by the resistor at pin 4. Both compensations for the current and voltage loop are external to allow full user control. There are various protection features incorporated to ensure safe system operation conditions. The internal reference is trimmed (3V+2%) to ensure precise protection and control level. The device has a fast startup time with controlled peak start up current. • • • • • • • • • • • • Ease of Use with Few External Components Supports Wide Range Average Current Control External Current and Voltage Loop Compensation for Greater User Flexibility Programmable Operating/Switching Frequency (50kHz - 250kHz) Max Duty Cycle of 95% (at 25°C) at 125kHz Trimmed Internal Reference Voltage (3V+2% at 25°C) VCC Under-Voltage Lockout Cycle by Cycle Peak Current Limiting Output Over-Voltage Protection Open Loop Detection Enhanced Dynamic Response Short Startup(SoftStart) duration Fulfills Class D Requirements of IEC 1000-3-2 Soft Overcurrent Protection Typical Application VOUT Auxiliary Supply 85 ... 265 VAC EMI-Filter VCC SWITCH ICE2PCS01/ ICE2PCS01G PFC-Controller Protection Unit GATE FREQ ICOMP PWM Logic Driver Variable Oscillator Current Loop Compensation ISENSE Type Package ICE2PCS01 PG-DIP-8 ICE2PCS01G PG-DSO-8 Version 2.3 Voltage Loop Compensation Ramp Generator VSENSE VCOMP Nonlinear Gain GND 3 22 March 2010 CCM-PFC ICE2PCS01/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 3.5 3.6 3.6.1 3.6.2 3.6.3 3.6.4 3.7 3.8 3.8.1 3.8.2 3.9 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 System Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Soft Over Current Control (SOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Peak Current Limit (PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Open Loop Protection / Input Under Voltage Protect (OLP) . . . . . . . . . . . 9 Over-Voltage Protection (OVP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Frequency Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Average Current Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Complete Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Current Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Pulse Width Modulation (PWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Nonlinear Gain Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 PWM Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Voltage Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Voltage Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Enhanced Dynamic Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Output Gate Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 4.1 4.2 4.3 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Variable Frequency Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 System Protection Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Current Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Voltage Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Driver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Version 2.3 4 22 March 2010 CCM-PFC ICE2PCS01/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. Symbol Function 1 GND IC Ground 2 ICOMP Current Loop Compensation 3 ISENSE Current Sense Input 4 FREQ Switching Frequency Setting 5 VCOMP Voltage Loop Compensation 6 VSENSE VOUT Sense (Feedback) Input 7 VCC IC Supply Voltage 8 GATE Gate Drive Output ISENSE (Current Sense Input) The ISENSE Pin senses the voltage drop at the external sense resistor (R1). This is the input signal for the average current regulation in the current loop. It is also fed to the peak current limitation block. During power up time, high inrush currents cause high negative voltage drop at R1, driving currents out of pin 3 which could be beyond the absolute maximum ratings. Therefore a series resistor (R2) of around 220W is recommended in order to limit this current into the IC. FREQ (Frequency Setting) This pin allows the setting of the operating switching frequency by connecting a resistor to ground. The frequency range is from 50kHz to 250kHz. Package PG-DIP-8 / PG-DSO-8 GND 1 8 GATE ICOMP 2 7 VCC ISENSE 3 6 VSENSE FREQ 4 5 VCOMP Figure 1 1.2 VSENSE (Voltage Sense/Feedback) The output bus voltage is sensed at this pin via a resistive divider. The reference voltage for this pin is 3V. VCOMP (Voltage Loop Compensation) This pin provides the compensation of the output voltage loop with a compensation network to ground (see Figure 2). This also gives the soft start function which controls an increasing AC input current during start-up. VCC (Power Supply) The VCC pin is the positive supply of the IC and should be connected to an external auxiliary supply. The operating range is between 11V and 26V. The turn-on threshold is at 11.8V and under voltage occurs at 11V. There is no internal clamp for a limitation of the power supply. Pin Configuration (top view) GATE The GATE pin is the output of the internal driver stage, which has a capability of 1.5A instantaneous source and 2.0A instantaneous sink current. Its gate drive voltage is clamped at 15V (typically). Pin Functionality GND (Ground) The ground potential of the IC. Version 2.3 5 22 March 2010 CCM-PFC ICE2PCS01/G Representative Block diagram 2 Figure 2 Representative Block diagram Representative Block diagram Version 2.3 6 22 March 2010 CCM-PFC ICE2PCS01/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 13mA 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. The current consumption is reduced to 300µA in this mode. The ICE2PCS01/G is a 8 pin control IC for power factor correction converters. It comes in both DIP and DSO packages and is suitable for wide range line input applications from 85 to 265 VAC. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average current control. The IC operates with a cascaded control; the inner current loop and the outer voltage loop. The inner current loop of the IC controls the sinusoidal profile for the average input current. It uses the dependency of the PWM duty cycle on the line input voltage to determine the corresponding input current. This means the average input current follows the input voltage as long as the device operates in CCM. Under light load condition, depending on the choke inductance, the system may enter into discontinuous conduction mode (DCM). In DCM, the average current waveform will be distorted but the resultant harmonics are still low enough to meet the Class D requirement of IEC 10003-2. The outer voltage loop controls the output bus voltage. Depending on the load condition, OTA1 establishes an appropriate voltage at VCOMP pin which controls the amplitude of the average input current. The IC is equipped with various protection features to ensure safe operating condition for both the system and device. Important protection features are namely Open-Loop protection, Current Limitation and Output Over-voltage Protection. 3.3 Start-up Figure 4 shows the operation of voltage loop’s OTA1 during startup. The VCOMP pin is pull internally to ground via switch S1 during UVLO and other fault conditions (see later section on “System Protection”). During power up when VOUT is less than 83% of the rated level, OTA1 sources an output current, maximum 30mA, into the compensation network at pin 5 (VCOMP) causing the voltage at this pin to rise linearly. This results in a controlled linear increase of the input current from 0A thus reducing the stress on the external component. VSENSE R4 x V OUT ) R3 + R4 ( OTA1 3V VCOMP S1 3.2 R6 Power Supply C4 An internal under voltage lockout (UVLO) block monitors the VCC power supply. As soon as it exceeds 11.8V and the voltage at pin 6 (VSENSE) is >0.6V, the IC begins operating its gate drive and performs its Startup as shown in Figure 3. . (VVSENSE > 0.6 V) (VVSENSE < 0.6 V) p ro tec t Figure 4 C5 IC E 2 P C S 0 1 /G Startup Circuit As VOUT has not reached within 5% from the rated value, VCOMP voltage is level-shifted by the window detect block as shown in Figure 5, to ensure there is fast boost up of the output voltage. When VOUT approaches its rated value, OTA1’s sourcing current drops and the level shift of the window detect block is removed. The normal voltage loop then takes control. (VVSENSE > 0.6 V) VCC 11.8 V 11.0 V t IC's Start Normal Open loop/ OFF Up Operation Standby State Figure 3 Normal Operation OFF State of Operation respect to VCC Version 2.3 7 22 March 2010 CCM-PFC ICE2PCS01/G Functional Description 3.4 Window Detect The IC provides several protection features in order to ensure the PFC system in safe operating range. Depending on the input line voltage (VIN) and output bus voltage (VOUT), Figure 7 and 8 show the conditions when these protections are active. Normal Control Max Vcomp current VOUT =rated VOUT System Protection 95%rated 83%rated VCC > VCCUVLO VCC400kW Clamped at 15V if driven internally. 1) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kW series resistor) 2) Absolute ISENSE current should not be exceeded 4.2 Note: Operating Range Within the operating range the IC operates as described in the functional description. Parameter Symbol Limit Values min. Unit max. VCC Supply Voltage VCC VCCUVLO 25 V Junction Temperature TJCon -40 °C Version 2.3 13 Remarks 125 22 March 2010 CCM-PFC ICE2PCS01/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 11.4 11.8 12.7 V VCC Turn-Off Threshold/ Under Voltage Lock Out VCCUVLO 10.4 11.0 11.7 V VCC Turn-On/Off Hysteresis VCChy 0.65 0.8 1.4 V Start Up Current Before VCCon ICCstart - 450 1100 mA VVCC=VVCCon -0.1V Operating Current with active GATE ICCHG - 15 20 mA R5 = 33kW CL= 4.7nF Operating Current during Standby ICCStdby - 700 1300 mA VVSENSE= 0.5V VICOMP= 4V 4.3.2 Variable Frequency Section Parameter Symbol Limit Values min. typ. Unit Test Condition max. Switching Frequency (Typical) FSWnom 124 136 147 kHz R5 = 33kW Switching Frequency (Min.) FSWmin 50 56 62 kHz R5 = 82kW Switching Frequency (Max.) FSWmax 250 285 315 kHz R5 = 15kW Voltage at FREQ pin VFREQ 1.65 1.70 1.76 V Version 2.3 14 22 March 2010 CCM-PFC ICE2PCS01/G Electrical Characteristics 4.3.3 PWM Section Parameter Symbol Max. Duty Cycle DMAX Min. Duty Cycle DMIN Min. Off Time TOFFMIN Limit Values Unit Test Condition min. typ. max. 92 95 98.5 % FSW = FSWnom (R5 = 33kW) 0 % VVCOMP= 0V, VVSENSE= 3V VICOMP= 4.3V 580 ns VVSENSE= 3V VISENSE= 0.1V (R5 = 33kW) 100 250 The parameter is not subject to production test - verified by design/characterization 4.3.4 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 Version 2.3 15 22 March 2010 CCM-PFC ICE2PCS01/G Electrical Characteristics 4.3.5 Current Loop Section Parameter Symbol Limit Values min. OTA2 Transconductance Gain typ. Unit Test Condition max. GmOTA2 0.8 1.0 1.3 mS OTA2 Output Linear Range1) IOTA2 - ± 50 - mA ICOMP Voltage during OLP VICOMPF 3.9 4.2 - V 4.3.6 At Temp = 25°C VVSENSE= 0.5V 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 2.94 V V VSENSE Input Bias Current at 3V IVSEN3V 0 - 1.5 mA VVSENSE= 3V VSENSE Input Bias Current at 1V IVSEN1V 0 - 1 mA VVSENSE= 1V VVCOMPF 0 0.2 0.4 V VVSENSE= 0.5V IVCOMP= 0.5mA Enhanced Dynamic Response VSENSE High Threshold VSENSE Low Threshold VCOMP Voltage during OLP Version 2.3 16 measured at VSENSE 22 March 2010 CCM-PFC ICE2PCS01/G Electrical Characteristics 4.3.7 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 = 4.7nF GATE Rise Time tr - 60 - ns VGate = 2V ...12V CL = 4.7nF GATE Fall Time tf - 50 - ns VGate = 12V ...2V CL = 4.7nF GATE Current, Peak, Rising Edge IGATE -1.5 - - A CL = 4.7nF1) GATE Current, Peak, Falling Edge IGATE - - 2.0 A CL = 4.7nF1) 1) Design characteristics (not meant for production testing) Version 2.3 17 22 March 2010 CCM-PFC ICE2PCS01/G Outline Dimension 5 Outline Dimension PG-DIP-8 Outline Dimension Version 2.3 18 22 March 2010 CCM-PFC ICE2PCS01/G Outline Dimension PG-DSO-8 Outline Dimension Version 2.3 19 22 March 2010 Total Quality Management Qualität hat für uns eine umfassende Bedeutung. Wir wollen allen Ihren Ansprüchen in der bestmöglichen Weise gerecht werden. Es geht uns also nicht nur um die Produktqualität – unsere Anstrengungen gelten gleichermaßen der Lieferqualität und Logistik, dem Service und Support sowie allen sonstigen Beratungs- und Betreuungsleistungen. Quality takes on an allencompassing significance at Semiconductor Group. For us it means living up to each and every one of your demands in the best possible way. So we are not only concerned with product quality. We direct our efforts equally at quality of supply and logistics, service and support, as well as all the other ways in which we advise and attend to you. Dazu gehört eine bestimmte Geisteshaltung unserer Mitarbeiter. Total Quality im Denken und Handeln gegenüber Kollegen, Lieferanten und Ihnen, unserem Kunden. Unsere Leitlinie ist jede Aufgabe mit „Null Fehlern“ zu lösen – in offener Sichtweise auch über den eigenen Arbeitsplatz hinaus – und uns ständig zu verbessern. Part of this is the very special attitude of our staff. Total Quality in thought and deed, towards co-workers, suppliers and you, our customer. Our guideline is “do everything with zero defects”, in an open manner that is demonstrated beyond your immediate workplace, and to constantly improve. Unternehmensweit orientieren wir uns dabei auch an „top“ (Time Optimized Processes), um Ihnen durch größere Schnelligkeit den entscheidenden Wettbewerbsvorsprung zu verschaffen. Geben Sie uns die Chance, hohe Leistung durch umfassende Qualität zu beweisen. Wir werden Sie überzeugen. http://www.infineon.com Published by Infineon Technologies AG Throughout the corporation we also think in terms of Time Optimized Processes (top), greater speed on our part to give you that decisive competitive edge. Give us the chance to prove the best of performance through the best of quality – you will be convinced.