ICE3GS03LJGXUMA1

V er sion 2 .0a , 8 N ov 20 11 N e v e r s t o p t h i n k i n g . F3 PWM controller ICE3GS03LJG Revision History: 2011-11-8 Previous Version: V2.0 Page 14, 15, 16, 17, 21, 22 Datasheet Subjects (major changes since last revision) revised typo in unit 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 Edition 2011-11-8 Published by Infineon Technologies AG, 81726 Munich, Germany, © 2010 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. ICE3GS03LJG Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell ( Latched and frequency jitter Mode ) Product Highlights • • • • • • Active Burst Mode to reach the lowest Standby Power Requirements < 100mW Built-in latched Off protection Mode and external latch enable function to increase robustness of the system Built-in and extendable blanking Window for high load jumps to increase system reliability Frequency jitter for low EMI Green Mould Compound Pb-free lead plating; RoHS compilant PG-DSO-8 Features Description • • • • • The ICE3GS03LJG is the 130KHz version of the ICE3AS03LJG which is the latest version of the F3 controller for lowest standby power and low EMI features with both auto-restart and latch off protection features to enhance the system robustness. It targets for off-Line battery adapters, and low cost SMPS for low to medium power range such as application for the DVD R/W, DVD Combi, Blue Ray DVD player and recorder, set top box, charger, note book adapter, etc. The inherited outstanding features includes 500V startup cell, active burst mode (achieve the lowest standby power; i.e. 25.5V and last for 120ms, the overvoltage detection is activated. It enters the latch off mode.This protection mode is activated in both normal operating mode and burst mode. The internal Voltage Reference is switched off most of the time once Latched Off Mode is entered in order to minimize the current consumption of the IC. This Latched Off Mode can only be reset if the VVCC < 6.23V. In this mode, only the UVLO is working which controls the Startup Cell by switching on/off at VVCCon/VVCCoff. During this phase, the average current consumption is only 250mA. As there is no longer a self-supply by the auxiliary winding, the VCC drops. The Undervoltage Lockout switches on the integrated Startup Cell when VCC falls below 10.5V. The Startup Cell is switched off again when VCC has exceeded 18V. Once the Latched Off Mode was entered, there is no Start Up Phase whenever the VCC exceeds the switch-on level of the Undervoltage Lockout. Therefore the VCC voltage changes between the switch-on and switch-off levels of the Undervoltage Lockout with a saw tooth shape (see Figure 26). Short Winding/Short Diode Latched Off Mode External Protection Enable Latched Off Mode Overload Auto Restart Mode Open Loop Auto Restart Mode VCC Undervoltage Auto Restart Mode Short Optocoupler Auto Restart Mode 3.7.3.1 VVCC Latched Off Mode 18V CS 1.66V C11 LatchedOff ModeReset VVCC 130°C Control Unit Figure 25 Latched Off Mode Version 2.0a Signals in Latched Off Mode 16 8 Nov 2011 F3 PWM controller ICE3GS03LJG Functional Description operating mode, comparator C10 controls the maximum level of the CS signal at 1.06V. If there is a failure such as short winding or short diode, C10 is no longer able to limit the CS signal at 1.06V. Instead the comparator C11 detects the peak current voltage > 1.66V and last for 190ns , it enters the Latched Off Mode immediately in order to keep the SMPS in a safe stage. In case the pre-defined Latch Off features are not sufficient, there is a customer defined external Latch Enable feature. The Latch Off Mode can be triggered by pulling down the BL pin to < 0.33V. It can simply add a trigger signal to the base of the externally added transistor, TLE at the BL pin. To ensure this latch function will not be mis-triggered during start up, a 2ms delay time is implemented to blank the unstable signal. 3.7.3.2 Auto Restart Mode BL # and IBK is 13mA, the extendable blanking time is around 52ms and the total blanking time is 72ms. In combining the FB and blanking time, there is a blanking window generated which prevents the system to enter Auto Restart Mode due to large load jumps. In case of VCC undervoltage, the IC enters into the Auto Restart Mode and starts a new startup cycle. Short Optocoupler also leads to VCC undervoltage as there is no self supply after activating the internal reference and bias. In contrast to the Latched Off Mode, there is always a Startup Phase with switching cycles in Auto Restart Mode. After this Start Up Phase, the conditions are again checked whether the failure mode is still present. Normal operation is resumed once the failure mode is removed that had caused the Auto Restart Mode. 5.0V CBK IBK 0.9V 1 S1 G2 C3 Spike Blanking 30us 4.0V & 4.2V C4 FB 20ms Blanking Time G5 Auto Restart Mode Control Unit Figure 27 Auto Restart Mode In case of Overload or Open Loop, the FB exceeds 4.2V which will be observed by comparator C4. Then the internal blanking counter starts to count. When it reaches 20ms, the switch S1 is released. Then the clamped voltage 0.9V at VBL can increase. When there is no external capacitor CBK connected, the VBL will reach 4.0V immediately. When both the input signals at AND gate G5 is positive, the Auto-Restart Mode will be activated after the extra spike blanking time of 30ms is elapsed. However, when an extra blanking time is needed, it can be achieved by adding an external capacitor, CBK. A constant current source of IBK will start to charge the capacitor CBK from 0.9V to 4.0V after the switch S1 is released. The charging time from 0.9V to 4.0V are the extendable blanking time. If CBK is 0.22mF Version 2.0a 17 8 Nov 2011 F3 PWM controller ICE3GS03LJG Electrical Characteristics 4 Electrical Characteristics Note: All voltages are measured with respect to ground (Pin 8). The voltage levels are valid if other ratings are not violated. 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. For the same reason make sure, that any capacitor that will be connected to pin 7 (VCC) is discharged before assembling the application circuit. Ta=25°C unless otherwise specified. Parameter Symbol Limit Values min. max. Unit Remarks HV Voltage VHV - 500 V VCC Supply Voltage VVCC -0.3 27 V FB Voltage VFB -0.3 5.5 V BL Voltage VBL -0.3 5.5 V CS Voltage VCS -0.3 5.5 V Junction Temperature Tj -40 150 °C Storage Temperature TS -55 150 °C Thermal Resistance Junction -Ambient RthJA - 185 K/W Soldering temperature,wave soldering only allowed at leads Tsold - 260 °C 1.6mm(0.063 in.) from case for 10s ESD Capability (incl. Drain Pin) VESD - 2 kV Human body model1) 1) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kW series resistor) 4.2 Note: Operating Range Within the operating range the IC operates as described in the functional description. Parameter Symbol Limit Values min. max. Unit Remarks VCC Supply Voltage VVCC VVCCoff 25 V Max. value limited due to VCC OVP Junction Temperature of Controller TjCon -25 130 °C Max value limited due to thermal shut down of controller Version 2.0a 18 8 Nov 2011 F3 PWM controller ICE3GS03LJG Electrical Characteristics 4.3 4.3.1 Note: Characteristics Supply Section The electrical characteristics involve the spread of values within the specified supply voltage and junction temperature range TJ from – 25 °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 = 18 V is assumed. Parameter Symbol Limit Values min. typ. max. Unit Test Condition Start Up Current IVCCstart - 150 250 mA VVCC =16.5V VCC Charge Current IVCCcharge1 - - 5.0 mA VVCC = 0V IVCCcharge2 0.55 0.90 1.60 mA VVCC = 1V IVCCcharge3 - 0.7 - mA VVCC =16.5V Leakage Current of Start Up Cell IStartLeak - 0.2 50 mA VHV = 450V, VVCC=18V Supply Current with Inactive Gate IVCCsup1 - 1.5 2.5 mA Supply Current with Active Gate IVCCsup2 - 2.5 4.2 mA IFB = 0A, CLoad=680pF Supply Current in Latched Off Mode IVCClatch - 250 - mA IFB = 0A Supply Current in Auto Restart Mode with Inactive Gate IVCCrestart - 250 - mA IFB = 0A Supply Current in Active Burst Mode with Inactive Gate IVCCburst1 - 450 950 mA VFB = 2.5V IVCCburst2 - 450 950 mA VVCC = 11.5V,VFB = 2.5V VCC Turn-On Threshold VCC Turn-Off Threshold VCC Turn-On/Off Hysteresis VVCCon VVCCoff VVCChys 17.0 9.8 - 18.0 10.5 7.5 19.0 11.2 - V V V 4.3.2 Internal Voltage Reference Parameter Trimmed Reference Voltage Version 2.0a Symbol VREF Limit Values min. typ. max. 4.90 5.00 5.10 19 Unit Test Condition V measured at pin FB IFB = 0 8 Nov 2011 F3 PWM controller ICE3GS03LJG Electrical Characteristics 4.3.3 PWM Section Parameter Symbol Limit Values Unit Test Condition min. typ. max. fOSC1 113 130 147 kHz fOSC2 119 130 141 kHz Tj = 25°C Frequency Jittering Range fjitter - ±5.2 - kHz Tj = 25°C Max. Duty Cycle Dmax 0.70 0.75 0.80 Min. Duty Cycle Dmin 0 - - PWM-OP Gain AV 3.1 3.3 3.5 Voltage Ramp Offset VOffset-Ramp - 0.67 - V VFB Operating Range Min Level VFBmin - 0.5 - V VFB Operating Range Max level VFBmax - - 4.3 V FB Pull-Up Resistor RFB 9 15.4 22 kW Fixed Oscillator Frequency 1) VFB < 0.3V CS=1V, limited by Comparator C41) The parameter is not subjected to production test - verified by design/characterization 4.3.4 Soft Start time Parameter Soft Start time Version 2.0a Symbol tSS Limit Values min. typ. max. - 10 - 20 Unit Test Condition ms 8 Nov 2011 F3 PWM controller ICE3GS03LJG Electrical Characteristics 4.3.5 Control Unit Parameter Symbol Limit Values min. typ. max. Unit Test Condition VFB = 4V Clamped VBL voltage during Normal Operating Mode VBLclmp 0.85 0.90 0.95 V Blanking time voltage limit for Comparator C3 VBKC3 3.85 4.00 4.15 V Over Load & Open Loop Detection Limit for Comparator C4 VFBC4 4.05 4.20 4.35 V Active Burst Mode Level for Comparator C5 VFBC5 1.12 1.23 1.34 V Active Burst Mode Level for Comparator C6a VFBC6a 3.35 3.50 3.65 V After Active Burst Mode is entered Active Burst Mode Level for Comparator C6b VFBC6b 2.88 3.00 3.12 V After Active Burst Mode is entered Overvoltage Detection Limit VVCCOVP 25 25.5 26.5 V Latch Enable level at BL pin VLE 0.25 0.33 0.4 V > 30ms Charging current at BL pin IBK 9.1 13.0 16.9 mA Charge starts after the built-in 20ms blanking time elapsed Latched Thermal Shutdown1) TjSD 130 140 150 °C Built-in Blanking Time for Overload Protection or enter Active Burst Mode tBK - 20 - ms without external capacitor at BL pin Inhibit Time for Latch Enable function during Start up tIHLE - 2.0 - ms After IC turns on Spike Blanking Time before Latch off or Auto Restart Protection tSpike - 30 - ms Power Down Reset for Latched Mode VVCCPD 5.2 6.23 7.8 V 1) After Latched Off Mode is entered The parameter is not subjected to production test - verified by design/characterization. The thermal shut down temperature refers to the junction temperature of the controller. Note: The trend of all the voltage levels in the Control Unit is the same regarding the deviation except VVCCOVP and VVCCPD Version 2.0a 21 8 Nov 2011 F3 PWM controller ICE3GS03LJG Electrical Characteristics 4.3.6 Current Limiting Parameter Symbol Limit Values min. typ. max. Unit Test Condition dVsense / dt = 0.6V/ms (see Figure 20) Peak Current Limitation (incl. Propagation Delay) Vcsth 0.99 1.06 1.13 V Peak Current Limitation during Active Burst Mode VCS2 0.21 0.25 0.31 V Leading Edge Blanking tLEB - 220 - ns CS Input Bias Current ICSbias -1.5 -0.2 - mA Over Current Detection for Latched Off Mode VCS1 1.57 1.66 1.76 V CS Spike Blanking for Comparator C11 tCSspike - 190 - ns 4.3.7 VCS =0V Driver Section Parameter GATE Low Voltage GATE High Voltage Symbol VGATElow VGATEhigh Limit Values Unit Test Condition min. typ. max. - - 1.2 V VVCC = 5 V IGate = 1 mA - - 1.5 V VVCC = 5 V IGate = 5 mA - 0.8 - V IGate = 0 A - 1.6 2.0 V IGate = 20 mA -0.2 0.2 - V IGate = -20 mA - 10.0 - V VVCC = 25V CL = 680pF - 9.0 - V VVCC = 15V CL = 680pF - 8.0 - V VVCC = VVCCoff + 0.2V CL = 680pF GATE Rise Time (incl. Gate Rising Slope) trise - 150 - ns VGate = 2V ...9V1) CL = 680pF GATE Fall Time tfall - 55 - ns VGate = 9V ...2V1) CL = 680pF GATE Current, Peak, Rising Edge IGATE -0.17 - - A CL = 680pF2) GATE Current, Peak, Falling Edge IGATE - - 0.39 A CL = 680pF2) 1) Transient reference value 2) The parameter is not subjected to production test - verified by design/characterization Version 2.0a 22 8 Nov 2011 F3 PWM controller ICE3GS03LJG Outline Dimension 5 Outline Dimension PG-DSO-8 (Plastic Dual Small Outline) Figure 28 PG-DSO-8 (PB-free Plating Plastic Dual Small Outline) Version 2.0a 23 8 Nov 2011 F3 PWM controller ICE3GS03LJG Marking 6 Marking Marking Figure 29 Marking for ICE3GS03LJG Version 2.0a 24 8 Nov 2011 Total Quality Management Qualität hat für uns eine umfassende Bedeutung. Wir wollen allen Ihren Ansprüchen in der bestmöglichen Weise gerecht werden. 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