ICE3AR4780CJZ

Version 2.0, 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ Off-Line SMPS Current Mode Controller with integrated 800V CoolMOS® and Startup cell (brownout & CCM) in DIP-7 Power Management & Supply N e v e r s t o p t h i n k i n g . CoolSET®-F3R80 ICE3AR4780CJZ Revision History: 2013-04-19 Datasheet Version 2.0 Previous Version: V 0.1 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. Edition 2013-04-19 Published by Infineon Technologies AG 81726 München, Germany © Infineon Technologies AG 4/19/13. All Rights Reserved. Attention please! The information given in this data sheet shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). 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 only be used in life-support devices or systems 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. CoolSET®-F3R80 ICE3AR4780CJZ Off-Line SMPS Current Mode Controller with integrated 800V CoolMOS® and Startup cell (brownout & CCM) in DIP-7 Product Highlights • 800V avalanche rugged CoolMOS® with startup cell • CCM and DCM operation with slope compensation • Active Burst Mode to reach the lowest Standby Power 25.5V, the IC enters into odd skip Auto Restart Mode (Figure 28). The over temperature protection OTP is sensed inside the controller IC. The Thermal Shutdown block keeps on monitoring the junction temperature of the controller. After detecting a junction temperature higher than 130°C, the IC will enter into the non switch Auto Restart mode. The ICE3ARxx80CJZ has also implemented with a 50°C hysteresis. That means the IC can only be recovered when the controller junction temperature is dropped 50°C lower than the over temperature trigger point (Figure 28). The external latch enable feature can provide a flexibility to a customer’s self-defined protection feature. This function can be triggered by pulling down the VBRL voltage to < 0.4V. Or it can simply trigger the base pin of an external transistor, TLE at the BRL pin. When this function is enabled, it will enter into latch Version 2.0 40ms Blanking Time Over load and open loop protection In case of Overload or Open Loop, the VFBB voltage exceeds 4.5V which will be observed by comparator C4. Then the built-in blanking time counter starts to count. When it reaches 40ms, the odd skip Auto Restart Mode is activated (Figure 29). 3.7.3 Brownout Mode When the AC input voltage is removed, the voltage at the bulk capacitor will fall. When it reaches a point that the system is greater than the system allowed maximum power, the system may go into over load protection. However, this kind of protection is not expected for some of the applications such as auxiliary power for PC/server system because the output is in hiccup mode due to over load protection (auto restart mode). The brownout mode is to eliminate this phenomenon. The ICE3ARxx80CJZ will sense the 18 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ Functional Description input AC voltage to the BRL pin by an AC hold up circuit and 2 potential divider resistors. In some applications, it needs the IC to continue to work for certain time when AC voltage is disconnected. After that, the IC will stop working. If the brownout connection is taping from the bulk capacitor, the delay time is too short. Therefore, it needs the brown out detetction at the AC input (Figure 30). The CBR0 is charged up by AC line voltage through RBO0, which is then fed to BRL pin through a voltage divider. When the AC voltage drops, if the BRL pin voltage is lower than 1V for 270μs, the ICE3ARxx80CJZ will go into brownout mode. If, however, the AC line goes up again, the BRL voltage will be larger than 1.25V and the ICE3ARxx80CJZ will leave brown out mode and recover to normal operation. The brownout mode is default “ON” during the system starts up. When the system is powered up, the bulk capacitor and the Vcc capacitor are charged up at the same time. When the Vcc voltage is charged to >8V, the brownout circuit starts to operate (Figure 30). Since the UVLO is still at low level as the Vcc voltage does not reach the 17V UVLO “ON” voltage. The NAND gate G20 will release a low signal to the flip flop FF2 and the negative output of FF2 will release a high signal. Hence it is in brownout mode during the system starts up. 10.5V VCS Figure 31 3.7.4 Fast AC reset During normal operation, the ICE3ARxx80CJZ can be latched by pulling down the BRL voltage below 0.4V for 210μs. There are 2 condtions to reset the latch feature. The first one is to pull down the Vcc voltage to below 8V. However, the Vcc drop would take quite a long time if it is by normal AC power down. The second one is to have a slow rise time of the BRL voltage from 0.4V to 1V for at least 450μs after the BRL pin is pulled down. This timing can be achieved by the AC recycle. And it is also called the fast AC reset (Figure 32). R BRL 1V Q Vac FF2 C1b RBO2 Q S C1a Brownout mode waveform If the brownout feature is not needed, it needs to tie the BRL pin to the Vcc pin through a current limiting resistor, 5MΩ~10MΩ. The BRL pin cannot be in floating condition. CBR0 RBO1 t t Brownout mode 1.25V Startup and detect BBL voltage 17V Vac RBO0 Brownout detected VVCC RBO0 G21 0.4V Blanking Time  270µs RBO1 G20 TLE Figure 30 Blanking time 210us C2a Blanking time  450µs 0.4V Control Unit UVLO C3 Latch  Mode CBR0 Brownout detection circuit Latch Enable  Signal Once the system enters the brownout mode, there will be no switching pulse and the IC enters into another type auto-restart mode which is similar to the protection auto-restart mode but the IC will monitor the BRL signal in each restart cycle (Figure 31). BRL RBO2 C2b 1V G3 Vcc C11 8V Figure 32 & G2 Latch  Reset Control Unit Latch and fast AC reset Figure 33 shows different latch and reset cases. Case a : not latched (solid line); the timing below 0.4V is 150μs and is less than 210μs. Version 2.0 19 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ Functional Description Case b : latched (dashed line); the timing below 0.4V is 450μs which is larger than 210μs. No latch reset as the rise time from 0.4V to 1V is 300μs which is less than the 450μs. Case c : latched and reset (dotted line); the timing below 0.4V is 710μs which is larger than 210μs. But the rise time from 0.4V to 1V is 560μs which is larger than the latch reset blanking time of 450μs. VBRL 150µs 710µs 560µs Latched and reset (c) 450µs 300µs Latched (b) Not latched (a) 1V 0.4V t Figure 33 Version 2.0 Latch and fast AC reset example 20 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ 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 Drain Source Voltage Pulse drain current, tp limited by Tjmax Symbol Limit Values min. max. VDS - 800 Unit V ID_Puls - 1.95 A Avalanche energy, repetitive tAR limited by max. Tj=150°C1) EAR - 0.024 mJ Avalanche current, repetitive tAR limited by max. Tj=150°C IAR - 0.95 A VCC Supply Voltage VVCC -0.3 27 V FBB Voltage VFBB -0.3 5.5 V BRL Voltage VBRL -0.3 5.5 V CS Voltage VCS -0.3 5.5 V Tj -40 150 °C Junction Temperature Remarks Controller & CoolMOS® TS -55 150 °C Thermal Resistance Junction -Ambient RthJA - 96 K/W Soldering temperature, wavesoldering only allowed at leads Tsold - 260 °C 1.6mm (0.063in.) from case for 10s ESD Capability (incl. Drain Pin) VESD - 2 kV Human body model2) Storage Temperature 1) Repetitive avalanche causes additional power losses that can be calculated as PAV=EAR*f 2) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kΩ series resistor) Version 2.0 21 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ Electrical Characteristics 4.2 Note: Operating Range Within the operating range the IC operates as described in the functional description. Parameter Symbol Limit Values Unit Remarks min. max. VCC Supply Voltage VVCC VVCCoff 24.7 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 Junction Temperature of CoolMOS® TjCoolMOS -25 150 °C 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 = 17 V is assumed. Parameter Symbol Limit Values Unit Test Condition min. typ. max. IVCCstart - 210 300 μA VVCC =16V IVCCcharge1 - - 5.0 mA VVCC = 0V IVCCcharge2 0.55 1.0 1.60 mA VVCC = 1V IVCCcharge3 0.38 0.75 - mA VVCC =16V Leakage Current of Start Up Cell and CoolMOS® IStartLeak - 0.2 50 μA VDrain = 650V at Tj=100°C 1) Supply Current with Inactive Gate IVCCsup1 - 1.9 3.2 mA Supply Current with Active Gate IVCCsup2 - 3.4 4.8 mA IFBB = 0A Supply Current in Latched Off Mode with Inactive Gate IVCClatch - 420 - μA IFBB = 0A Supply Current in Auto Restart Mode with Inactive Gate IVCCrestart - 420 - μA IFBB = 0A Supply Current in Active Burst Mode with Inactive Gate IVCCburst1 - 620 950 μA VFBB = 2.5V IVCCburst2 - 620 950 μA VVCC = 11.5V, VFBB = 2.5V VCC Turn-On Threshold VCC Turn-Off Threshold VCC Turn-On/Off Hysteresis VVCCon VVCCoff VVCChys 16.0 9.8 - 17.0 10.5 6.5 18.0 11.2 - V V V Start Up Current VCC Charge Current 1) The parameter is not subjected to production test - verified by design/characterization Version 2.0 22 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ Electrical Characteristics 4.3.2 Internal Voltage Reference Parameter Trimmed Reference Voltage 4.3.3 Symbol VREF Limit Values Unit min. typ. max. 4.90 5.00 5.10 V Test Condition measured at pin FBB IFBB = 0A PWM Section Parameter Symbol Limit Values Unit Test Condition min. typ. max. fOSC1 87 100 113 kHz fOSC2 92 100 108 kHz Tj = 25°C Frequency Jittering Range fjitter - ±4.0 - kHz Tj = 25°C Frequency Jittering period Tjitter - 4.0 - ms Tj = 25°C Max. Duty Cycle Dmax 0.70 0.75 0.80 Min. Duty Cycle Dmin - - 0 PWM-OP Gain AV 3.17 3.25 3.33 VOffset-Ramp - 0.60 - V VFBB Operating Range Min Level VFBmin - 0.7 - V VFBB Operating Range Max level VFBmax - - 4.4 V FBB Pull-Up Resistor RFB 9.0 15.4 22.0 kΩ Slope Compensation rate MC 45 50 55 mV/μs Fixed Oscillator Frequency Voltage Ramp Offset 1) VFBB < 0.3V dVsense / dt = 0.134V/μs , limited by Comparator C41) CS=0V The parameter is not subjected to production test - verified by design/characterization 4.3.4 Soft Start time Parameter Soft Start time Version 2.0 Symbol tSS Limit Values Unit min. typ. max. - 10 - 23 Test Condition ms 19 Apr 2013 CoolSET®-F3R80 ICE3AR4780CJZ Electrical Characteristics 4.3.5 Control Unit Parameter Symbol Limit Values Unit min. typ. max. Test Condition Brownout reference voltage for comparator C1a VBO_L 1.14 1.25 1.36 V Brownout reference voltage for comparator C1b VBO_E 0.91 1 1.09 V Leakage current of BRL pin Ileakage -0.5 - 0.5 μΑ Blanking time to enter brownout mode VBKC1b 190 270 310 μs Fast AC reset voltage for comparator C2a VC2a 0.3 0.4 0.5 V Fast AC reset voltage for comparator C2b VC2b 0.91 1 1.09 V VBKC2a 315 450 585 μs Isel 2.8 3.5 4.2 μΑ Burst mode selection reference voltage Vref1 1.69 1.80 1.91 V Vref2 3.78 4.00 4.22 V Over Load Limit for Comparator C4 VFBC4 4.40 4.50 4.72 V 15% Pin_max VFB_burst1 1.77 1.84 1.91 V Vfbb>Vref2 10% Pin_max VFB_burst2 1.50 1.61 1.72 V Vref1