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c c m - p f c ice 2p cs 03 ice 2p cs 03 g st a n d a l o n e po w e r f a c to r c o r re c t i o n (p f c ) c o n tr o l l e r i n c o n ti n u o u s c o n d u c t i o n m o d e (c c m ) w i t h i n p u t b ro w n -o u t pr o te c t i o n n e v e r s t o p t h i n k i n g . v e rs i o n 2. 1, 22 m a rc h 2 0 1 0 powe r m anagem ent & s uppl y
edition 2010-03-22 published by infineon technologies ag 81726 mnchen, 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. 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 revision history: 2010-03-22 datasheet previous version: ver2.0 page subjects(major changes since last version) 18&19 package outline dimension
ccm-pfc ICE2PCS03 ICE2PCS03g version 2.1 3 22 march 2010 type package ICE2PCS03 pg-dip-8 ICE2PCS03g pg-dso-8 standalone power factor correction (pfc) controller in continuous conduction mode (ccm) with input brown-out protection ICE2PCS03 pg-dip-8 ICE2PCS03g pg-dso-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 (100khz) features ? ease of use with few external components ? supports wide input range ? average current control ? external current and voltage loop compensation for greater user flexibility ? trimmed internal fixed switching frequency (100khz+ 5% at 25 o c) ? direct sensing, input brown-out detection with hysteresis ? short startup(softstart) duration ? max duty cycle of 95% (typ) ? trimmed internal reference voltage (3v+ 2%) ? vcc under-voltage lockout ? cycle by cycle peak current limiting ? output over-voltage protection ? open loop detection ? soft overcurrent protection ? enhanced dynamic response ? fulfills class d requirements of iec 1000-3-2 description the ICE2PCS03/g is a 8-pin wide input range controller ic for active power factor correction converters. it is de- signed 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 trimmed and fixed internally at 100khz. both current and voltage loop compensations are done exter- nally to allow full user control. there are various protection features incorporated to en- sure safe system operation conditions. the internal refer- ence is trimmed (3v+ 2%) to ensure precise protection and output control level. 85 ... 265 vac emi-filter voltage loop compensation protection unit fixed oscillator current loop compensation pwm logic driver ICE2PCS03/g ccm pfc vcc auxiliary supply v out typical application ramp generator icomp vsense vcomp isense gnd nonlinear gain gate vins brown-out
ccm-pfc ICE2PCS03/g version 2.1 4 22 march 2010 1 pin configuration and functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 pin functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 representative block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.3 start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.4 system protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4.1 input brown-out protection (ibop) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4.2 soft over current control (soc) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.4.3 peak current limit (pcl) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.4.4 open loop protection (olp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.4.5 over-voltage protection (ovp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.5 fixed switching frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.6 average current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.6.1 complete current loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.6.2 current loop compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.6.3 pulse width modulation (pwm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.6.4 nonlinear gain block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.7 pwm logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.8 voltage loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.8.1 voltage loop compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.8.2 enhanced dynamic response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.9 output gate driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.3 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3.1 supply section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3.2 pwm section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3.3 system protection section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3.4 current loop section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3.5 voltage loop section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.3.6 driver section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5 outline dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
version 2.1 5 22 march 2010 ccm-pfc ICE2PCS03/g pin configuration and functionality 1 pin configuration and functionality 1.1 pin configuration figure 1 pin configuration (top view) 1.2 pin functionality gnd (ground) the ground potential of the ic. 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. 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 220 w is recommended in order to limit this current into the ic. vins (brown-out sense input) this vins pin senses a filtered input voltage divider and detects for the input voltage brown-out condition. a brown-out condition of vins<0.71v, shuts down the ic. the ic turns on at vins>1.5v. 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). 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. 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 internally clamped at 15.0v (typically). pin symbol function 1 gnd ic ground 2 icomp current loop compensation 3 isense current sense input 4 vins brown-out sense input 5 vcomp voltage loop compensation 6 vsense v out sense (feedback) input 7 vcc ic supply voltage 8 gate gate drive output package pg-dip-8 / pg-dso-8 1 6 7 8 4 3 2 5 gategnd icomp isense vcc vsense vins vcomp
ccm-pfc ICE2PCS03/g representative block diagram version 2.1 6 22 march 2010 2 representative block diagram figure 2 representative block diagram
ccm-pfc ICE2PCS03/g functional description version 2.1 7 22 march 2010 3.1 general the ICE2PCS03/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. it is a design derivative from the ice2pcs01/g with the differences in the supporting functions, namely the input brown-out detection and internal fixed switching frequency 100khz. 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) resulting in a higher harmonics but still meeting the class d requirement of iec 1000-3-2. 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. 3.2 power supply an internal under voltage lockout (uvlo) block monitors the vcc power supply. as soon as it exceeds 11.8v and both voltages at pin 6 (vsense) >0.6v and pin 4 (vins) >1.5v, the ic begins operating its gate drive and performs its startup as shown in figure 3. . figure 3 state of operation respect to vcc if vcc drops below 11v, the ic is off. the ic will then be consuming typically 300 m a, 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 300 m a. other condition that can result in the standby mode is when a brown-out condition occurs, ie pin 4 (vins) <0.71v. 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 v out is less than 83% of the rated level, ota1 sources an output current, maximum 30 m a 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. figure 4 startup circuit as v out 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 output voltage. when v out approaches its rated value, ota1?s sourcing current drops and so does the level shift of the window detect block is removed. the normal voltage loop then takes control. v cc ( v vsense > 0.6 v) and ( v vins > 1.5 v) 11.8 v 11.0 v t off start up open loop/ standby normal operation ic's state off normal operation ( v vsense < 0.6 v) or ( v vins < 0.8 v) ( v vsense > 0.6 v) and ( v vins > 1.5 v) vcomp c5 c4 vsense ota1 3v ICE2PCS03/g protect r3 + r4 r4 x v out ) ( r6 s1 3 functional description
ccm-pfc ICE2PCS03/g functional description version 2.1 8 22 march 2010 . figure 5 startup with controlled maximum current 3.4 system protection the ic provides several protection features in order to ensure the pfc system in safe operating range: ? vcc undervoltage lockout (uvlo) ? input brown-out detection (ibop) ? soft over current control (soc) ? peak current limit (pcl) ? open-loop detection (olp) ? output over-voltage protection (ovp) after the system is supplied with the correct level of vcc and v in , the system will enter into its normal mode of operation. figure 6 shows situation when these protections features are active, as a function of the output voltage v out . an activation of the uvlo, ibop and olp results in the internal fault signal going high and brings the ic into the standby mode. as the function of uvlo has already described in the earlier ?power supply? section, the following sections continue to describe the functionality of these protection features. figure 6 protection features 3.4.1 input brown-out protection (ibop) brown-out occurs when the input voltage v in falls below the minimum input voltage of the design (i.e. 85v for universal input voltage range) and the vcc has not entered into the v ccuvlo level yet. for a system without ibop, the boost converter will increasingly draw a higher current from the mains at a given output power which may exceed the maximum design values of the input current. ICE2PCS03/g provides a new ibop feature whereby it senses directly the input voltage for input brown-out condition via an external resistor/capacitor/diode network as shown in figure 7. this network provides a filtered value of v in which turns the ic on when the voltage at pin 4 (vins) is more than 1.5v. the ic enters into the standby mode when vins goes below 0.71v. the hysteresis prevents the system to oscillate between normal and standby mode. note also that v in needs to at least 20% of the rated v out in order to overcome olp and powerup the system. figure 7 input brown-out protection (ibop) av(i in ) v out t v out =rated 95%rated window detect normal control t max vcomp current 83%rated vcomp level-shifted vcomp t v out pcl / soc 20% 100% olp olp 108% ovp v out,rated uvlo / ibop supply related current related output related ICE2PCS03/g 85 ... 265 vac vin c1 d2 ... d5 vins c4 c5 r s 1.5v 0.71v brown-out detection r8 r9 c6 d7 brown-out 80k 3.5v
ccm-pfc ICE2PCS03/g functional description version 2.1 9 22 march 2010 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. figure 8 soc and pcl protection as function of v isense the rated output power with a minimum v in (v inmin ) is due to the internal parameter tolerance, the maximum power with v inmin is 3.4.3 peak current limit (pcl) the ic provides a cycle by cycle peak current limitation (pcl). it is active when the voltage at pin 3 (isense) reaches -1.04v. this voltage is amplified by op1 by a factor of -1.43 and connected to comparator c2 with a reference voltage of 1.5v as shown in figure 9. a deglitcher with 300ns after the comparator improves noise immunity to the activation of this protection. figure 9 peak current limit (pcl) 3.4.4 open loop protection (olp) whenever vsense voltage falls below 0.6v, or equivalently v out falls below 20% of its rated value, it indicates an open loop condition (i.e. vsense pin not connected) or an insufficient input voltage v in for normal operation. in this case, most of the blocks within the ic will be shutdown. it is implemented using comparator c3 with a threshold of 0.6v as shown in the ic block diagram in figure 2. 3.4.5 over-voltage protection (ovp) whenever v out exceeds the rated value by 5%, the over-voltage protection ovp is active as shown in figure 6. this is implemented by sensing the voltage at pin vsense with respect to a reference voltage of 3.15v. a vsense voltage higher than 3.15v will immediately reduce the output duty cycle, bypassing the normal voltage loop control. this results in a lower input power to reduce the output voltage v out . a vsense voltage higher than 3.25v will immediately turn off the gate, thereby preventing damage to bus capacitor. 3.5 fixed switching frequency ICE2PCS03/g has an internally fixed switching frequency as opposed to the ice2pcs01/g which can be externally set. this frequency is trimmed to 100khz with an accuracy 5% at 25 o c. v isense -0.61v -0.75v -1.04v normal operation soc pcl p out (rated) ic?s state 0 p out (max) p out rated ( ) v inmin 0.61 r1 2 ------------------- = p out max ( ) v inmin 0.75 r1 2 ------------------- = isense ICE2PCS03/g r1 r2 i inductor op1 1.43x current limit 300ns c2 deglitcher turn off driver 1.5v full-wave rectifier
ccm-pfc ICE2PCS03/g functional description version 2.1 10 22 march 2010 3.6 average current control 3.6.1 complete current loop the complete system current loop is shown in figure 10. figure 10 complete system current loop it consists of the current loop block which averages the voltage at pin isense, resulted from the inductor current flowing across r1. the averaged waveform is compared with an internal ramp in the ramp generator and pwm block. once the ramp crosses the average waveform, the comparator c1 turns on the driver stage through the pwm logic block. the nonlinear gain block defines the amplitude of the inductor current. the following sections describe the functionality of each individual blocks. 3.6.2 current loop compensation the compensation of the current loop is done at the icomp pin. this is the ota2 output and a capacitor c3 has to be installed at this node to ground (see figure 10). under normal mode of operation, this pin gives a voltage which is proportional to the averaged inductor current. this pin is internally shorted to 4.2v in the event of standby mode. 3.6.3 pulse width modulation (pwm) the ic employs an average current control scheme in continuous conduction mode (ccm) to achieve the power factor correction. assuming the voltage loop is working and output voltage is kept constant, the off duty cycle d off for a ccm pfc system is given as from the above equation, d off is proportional to v in . the objective of the current loop is to regulate the average inductor current such that it is proportional to the off duty cycle d off , and thus to the input voltage v in . figure 11 shows the scheme to achieve the objective. figure 11 average current control in ccm the pwm is performed by the intersection of a ramp signal with the averaged inductor current at pin 5 (icomp). the pwm cycle starts with the gate turn off for a duration of t offmin (400ns typ.) and the ramp is kept discharged. the ramp is then allowed to rise after t offmin expires. the off time of the boost transistor ends at the intersection of the ramp signal and the averaged current waveform. this results in the proportional relationship between the average current and the off duty cycle d off . figure 12 shows the timing diagrams of t offmin and the pwm waveforms. figure 12 ramp and pwm waveforms 3.6.4 nonlinear gain block the nonlinear gain block controls the amplitude of the regulated inductor current. the input of this block is the r s ICE2PCS03/g vout l1 c2 r3 r4 gate driver d1 from full-wave retifier gate r1 r2 ota2 icomp 4.2v current loop compensation current loop nonlinear gain 1.0ms +/-50ua (linear range) c3 s2 fault isense c1 pwm comparator pwm logic q input from voltage loop voltage proportional to averaged inductor current r7 d off v in v out --------------= t ave(i in ) at icomp ramp profile gate drive t offmin 400ns v cref (1) v ramp pwm ramp released pwm cycle (1) v cref is a function of v icomp t
ccm-pfc ICE2PCS03/g functional description version 2.1 11 22 march 2010 voltage at pin vcomp. this block has been designed to support the wide input voltage range (85-265vac). 3.7 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 t offmin , are designed to meet a maximum duty cycle d max of 95% at the gate output. in case of high input currents which result in peak current limitation, the gate will be turned off immediately and maintained in off state for the current pwm cycle. the signal toffmin resets (highest priority, overriding other input signals) both the current limit latch and the pwm on latch as illustrated in figure 13. figure 13 pwm logic 3.8 voltage loop the voltage loop is the outer loop of the cascaded control scheme which controls the pfc output bus voltage v out . this loop is closed by the feedback sensing voltage at vsense which is a resistive divider tapping from v out . the pin vsense is the input of ota1 which has an accurate internal reference of 3v (2%). figure 14 shows the important blocks of this voltage loop. 3.8.1 voltage loop compensation the compensation of the voltage loop is installed at the vcomp pin (see figure 14). this is the output of ota1 and the compensation must be connected at this pin to ground. the compensation is also responsible for the soft start function which controls an increasing ac input current during start-up. figure 14 voltage loop 3.8.2 enhanced dynamic response due to the low frequency bandwidth of the voltage loop, the dynamic response is slow and in the range of about several 10ms. this may cause additional stress to the bus capacitor and the switching transistor of the pfc in the event of heavy load changes. the ic provides therefore a ?window detector? for the feedback voltage v vsense at pin 6 (vsense). whenever v vsense exceeds the reference value (3v) by + 5%, it will act on the nonlinear gain block which in turn affect the gate drive duty cycle directly. this change in duty cycle is bypassing the slow changing vcomp voltage, thus results in a fast dynamic response of v out . 3.9 output gate driver the output gate driver is a fast totem pole gate drive. it has an in-built cross conduction currents protection and a zener diode z1 (see figure 15) to protect the external transistor switch against undesirable over voltages. the maximum voltage at pin 8 (gate) is typically clamped at 15v. g1 r s l1 r s l2 peak current limit current loop pwm on signal toffmin 385ns current limit latch pwm on latch high = turn gate on q q vcomp vsense c5 c4 r6 ota1 3v v in av(i in ) nonlinear gain t ICE2PCS03/g vout l1 c2 r3 r4 gate driver current loop + pwm generation d1 from full-wave retifier gate r7
ccm-pfc ICE2PCS03/g functional description version 2.1 12 22 march 2010 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. gate external mos z1 vcc gate driver pwm logic high to turn on lv * lv: level shift ICE2PCS03/g
ccm-pfc ICE2PCS03/g electrical characteristics version 2.1 13 22 march 2010 4 electrical characteristics 4.1 absolute maximum ratings note: absolute maximum ratings are defined as ratings, which when being exceeded may lead to destruction of the integrated circuit. 4.2 operating range note: within the operating range the ic operates as described in the functional description. parameter symbol limit values unit remarks min. max. v cc supply voltage v cc -0.3 25 v vins voltage v vins -0.3 9.5 v 3) vins current i ins -1 35 ua icomp voltage v icomp -0.3 5 v isense voltage v isense -20 5 v 2) isense current i isense -1 1 ma recommended r2 =220 w vsense voltage v vsense -0.3 5 v vsense current i vsense -1 1 ma r3 >400k w vcomp voltage v vcomp -0.3 5 v gate voltage v gate -0.3 17 v clamped at 15v(typ) if driven internally. junction temperature t j -40 150 c storage temperature t s -55 150 c thermal resistance junction-ambient for pg-dso-8 r thja (dso) - 185 k/w pg-dso-8 thermal resistance junction-ambient for pg-dip-8 r thja (dip) - 90 k/w pg-dip-8 esd protection v esd - 2 kv human body model 1) 1) according to eia/jesd22-a114-b (discharging a 100pf capacitor through a 1.5k w series resistor) 2) absolute isense current should not be exceeded 3) absolute vins current should not be exceeded parameter symbol limit values unit remarks min. max. v cc supply voltage v cc v ccuvlo 25 v junction temperature t jcon -40 125 c
ccm-pfc ICE2PCS03/g electrical characteristics version 2.1 14 22 march 2010 4.3 characteristics note: the electrical characteristics involve the spread of values within the specified supply voltage and junction temperature range t j from ? 40 c to 125 c.typical values represent the median values, which are related to 25c. if not otherwise stated, a supply voltage of v cc =18v is assumed for test condition . 4.3.1 supply section 4.3.2 pwm section parameter symbol limit values unit test condition min. typ. max. vcc turn-on threshold v ccon 11.4 11.8 12.7 v vcc turn-off threshold/ under voltage lock out v ccuvlo 10.4 11.0 11.7 v vcc turn-on/off hysteresis v cchy 0.65 0.8 1.4 v start up current before v ccon i ccstart - 450 1100 m a v vcc =v vccon -0.1v operating current with active gate i cchg - 10 16 ma c l = 4.7nf operating current during standby i ccstdby - 700 1300 m a v vsense = 0.5v v icomp = 4v parameter symbol limit values unit test condition min. typ. max. fixed oscillator frequency f sw 90 100 104 khz max. duty cycle d max 92 95 98.5 % min. duty cycle d min 0 % v vcomp = 0v, v vsense = 3v v icomp = 4.3v min. off time t offmin 200 400 700 ns v vsense = 3v v isense = 0.1v
ccm-pfc ICE2PCS03/g electrical characteristics version 2.1 15 22 march 2010 4.3.3 system protection section 4.3.4 current loop section parameter symbol limit values unit test condition min. typ. max. open loop protection (olp) vsense threshold v olp 0.55 0.6 0.65 v peak current limitation (pcl) isense threshold v pcl -1.16 -1.04 -0.95 v soft over current control (soc) isense threshold v soc -0.75 -0.68 -0.61 v output over-voltage protection (ovp) v ovp 3.1 3.25 3.4 v input brown-out protection (ibop) high to low threshold v vinsl 0.64 0.71 0.77 v input brown-out protection (ibop) low to high threshold v vinsh 1.46 1.50 1.57 v input brown-out protection (ibop) vins bias current i vin0v -1 -0.2 1 m a v vins = 0v parameter symbol limit values unit test condition min. typ. max. ota2 transconductance gain gm ota2 0.8 1.0 1.3 ms at temp = 25c ota2 output linear range 1) 1) the parameter is not subject to production test - verified by design/characterization i ota2 - 50 - m a icomp voltage during olp v icompf 3.9 4.2 - v v vsense = 0.5v
ccm-pfc ICE2PCS03/g electrical characteristics version 2.1 16 22 march 2010 4.3.5 voltage loop section parameter symbol limit values unit test condition min. typ. max. ota1 reference voltage v ota1 2.92 3.00 3.08 v measured at vsense ota1 transconductance gain gm ota1 26 39 51 m s ota1 max. source current under normal operation i ota1so 18 30 38 m a v vsense = 2v v vcomp = 3v ota1 max. sink current under normal operation i ota1sk 21 30 41 m a v vsense = 4v v vcomp = 3v enhanced dynamic response vsense high threshold vsense low threshold v hi v lo 3.09 2.76 3.18 2.85 3.26 2.94 v v vsense input bias current at 3v i vsen5v 0 - 1.5 m a v vsense = 3v vsense input bias current at 1v i vsen1v 0 - 1 m a v vsense = 1v vcomp voltage during olp v vcompf 0 0.2 0.4 v v vsense = 0.5v i vcomp = 0.5ma
ccm-pfc ICE2PCS03/g electrical characteristics version 2.1 17 22 march 2010 4.3.6 driver section parameter symbol limit values unit test condition min. typ. max. gate low voltage v gatel - - 1.2 v v cc = 10 v i gate = 5 ma - 1.5 v v cc = 10 v i gate =20 ma - 0.4 - v i gate = 0 a - - 1.0 v i gate = 20 ma -0.2 0 - v i gate = -20 ma gate high voltage v gateh - 14.8 - v v cc = 25v c l = 4.7nf - 14.8 - v v cc = 19v c l = 4.7nf 7.8 9.2 - v v cc = v vccoff + 0.2v c l = 4.7nf gate rise time t r - 60 - ns v gate = 2v ...12v c l = 4.7nf gate fall time t f - 50 - ns v gate = 12v ...2v c l = 4.7nf gate current, peak, rising edge i gate -1.5 - - a c l = 4.7nf 1) 1) design characteristics (not meant for production testing) gate current, peak, falling edge i gate - - 2.0 a c l = 4.7nf 1)
ccm-pfc ICE2PCS03/g outline dimension version 2.1 18 22 march 2010 5 outline dimension pg-dip-8 outline dimension
ccm-pfc ICE2PCS03/g outline dimension version 2.1 19 22 march 2010 pg-dso-8 outline dimension
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