D at as he et, V er s i on 1.0 , M ay 6 , 2 01 0 ICL8001G Single-Stage Flyback And PFC Controller For LED Lighting Appli cations Industrial & Multimarket ICL8001G Revision History: May 6, 2010 Previous Version: Preliminary Datasheet Version 1.0 Page Datasheet Subjects (major changes since last revision) 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 May 6, 2010 Published by Infineon Technologies AG 81726 München, Germany © Infineon Technologies AG 5/6/10. 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. ICL8001G Single-Stage Flyback And PFC Controller Product Highlight • Quasi-Resonant Control For Highly Efficient LED Driving Solutions • Primary Side Flyback Control With Integrated PFC And Phase-Cut Dimming • Integrated HV Startup Cell For Short Time To Light • Best In Class System BOM For Dimmable LED Bulb ICL8001G PG-DSO-8 Features Description • • • • The ICL8001G employs quasi-resonant operation mode optimized for off-line LED lighting, especially dimmable LED bulbs for incandescent lamp replacement. Precise PWM generation enables primary control for phase cut dimming and high power factor PF>98%. Significant improved driver efficiency, up to 90%, compared to other conventional solutions. Tthe product has a wide operation range (up to 26V) of IC voltage supply and lower power consumption. Multiple safety functions ensure a full system protection in failure situations. With its full feature set and simple application, the ICL8001G represents an outstanding choice for quasiresonant flyback LED bulb designs combining feature set and performance at minimum BOM cost. • • • • • High, stable efficiency over wide operating range Optimized for trailing- and leading-edge dimmer Precise PWM for primary PFC and dimming control Power cell for Vcc pre-charging with constant current Built-in digital soft-start Foldback correction and cycle-by-cycle peak current limitation VCC over/ under-voltage lockout Auto restart mode for short circuit protection Adjustable latch-off mode for output overvoltage protection Application Circuit for Primary control AC Snubber VCC VR ZCV HV ICL8001G GD CS GND Type ICL8001G Version 1.0 Package PG-DSO-8 3 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Table of Contents Page 1 1.1 1.2 1.3 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Pin Configuration with PG-DSO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Package PG-DSO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2 Representative Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 3 3.1 3.2 3.3 3.3.1 3.3.2 3.3.3 3.4 3.4.1 3.5 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 VCC Pre-Charging and Typical VCC Voltage During Start-up . . . . . . . . . . .7 Soft-start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Zero crossing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Ringing suppression time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Switch Off Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Current Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Foldback Point Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 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 4.3.8 4.3.9 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Current Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Soft Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Foldback Point Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Digital Zero Crossing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Gate Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 5 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Version 1.0 4 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Pin Configuration and Functionality 1 Pin Configuration and Functionality 1.1 1.3 ZCV (Zero Crossing) At this pin, the voltage from the auxiliary winding after a time delay circuit is applied. Internally, this pin is connected to the zero-crossing detector for switch-on determination. Additionally, the output overvoltage detection is realized by comparing the voltage Vzc with an internal preset threshold. Pin Configuration with PGDSO-8 Pin Symbol Function VR (Voltage Sense) The rectified input mains voltage is sensed at this pin. The signal is used to set the peak current of the peakcurrent control and therefore allow for the PFC and phase-cut dimming functionality. 1 ZCV Zero Crossing 2 VR Voltage Sense 3 CS Current Sense 4 GD Gate Drive Output 5 HV High Voltage Input 6 n.c. Not connected 7 VCC Controller Supply Voltage 8 GND Controller Ground 1.2 CS (Current Sense) This pin is connected to the shunt resistor for the primary current sensing, externally, and the PWM signal generator for switch-off determination (together with the feedback voltage), internally. Moreover, shortwinding protection is realised by monitoring the voltage Vcs during on-time of the main power switch. Package PG-DSO-8 ZCV VR CS GD Figure 1 Version 1.0 1 2 3 4 Pin Functionality 8 7 6 5 GD (Gate Drive Output) This output signal drives the external main power switch, which is a power MOSFET in most case. GND HV (High Voltage) The pin HV is connected to the bus voltage, externally, and to the power cell, internally. The current through this pin pre-charges the VCC capacitor with constant current once the supply bus voltage is applied. VCC VCC (Power supply) VCC pin is the positive supply of the IC. The operating range is between VVCCoff and VVCCOVP. NC GND (Ground) This is the common ground of the controller. HV Pin Configuration PG-DSO-8(top view) 5 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Representative Block Diagram 2 Representative Block Diagram VCC Zero Crossing ZCV Zero Current Detection Over Voltage Protection HV Power Managment Startup Cell Over / UnderVoltage Lockout Voltage Reference & Biasing Protection Restart / Latchup Control OTP Foldback Correction Depl. CoolMOS GND Gate Drive Gate Control GD Leading Edge Blanking CS Short Winding Detection Current Mode Control Softstart VR Figure 2 Version 1.0 PWM Comparator & PFC/ Dimming Control Representative Block Diagram 6 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Functional Description 3 Functional Description then will reach a constant value depending on output load. 3.1 VCC Pre-Charging and Typical VCC Voltage During Start-up 3.2 At the time ton, the IC begins to operate with a soft-start. By this soft-start the switching stresses for the switch, diode and transformer are minimised. The soft-start implemented in ICL8001G is a digital time-based function. The preset soft-start time is 12ms with 4 steps. If not limited by other functions, the peak voltage on CS pin will increase step by step from 0.32V to 1V finally. In ICL8001G, a high voltage startup cell is integrated. As shown in Figure 2, the start cell consists of a high voltage device and a controller, whereby the high voltage device is controlled by the controller. The startup cell provides a pre-charging of the VCC capacitor till VCC voltage reaches the VCC turned-on threshold VVCCon and the IC begins to operate. Once the mains input voltage is applied, a rectified voltage shows across the capacitor Cbus. The high voltage device provides a current to charge the VCC capacitor Cvcc. Before the VCC voltage reaches a certain value, the amplitude of the current through the high voltage device is only determined by its channel resistance and can be as high as several mA. After the VCC voltage is high enough, the controller controls the high voltage device so that a constant current around 1mA is provided to charge the VCC capacitor further, until the VCC voltage exceeds the turned-on threshold VVCCon. As shown as the time phase I in Figure 3, the VCC voltage increase near linearly and the charging speed is independent of the mains voltage level. Vcs_sst (V) 1.00 0.83 0.66 0.49 0.32 ton Figure 4 3.3 VVCC VVCCon i ii Soft-start iii 3 6 9 12 Time(ms) Maximum current sense voltage during softstart Normal Operation [1] The PWM controller during normal operation consists of a digital signal processing circuit including a comparator, and an analog circuit including a current measurement unit and a comparator. The switch-on and -off time points are each determined by the digital circuit and the analog circuit, respectively. As input information for the switch-on determination, the zerocrossing input signal is needed, while the voltages sense signal at pin VR and the current sensing signal VCS are necessary for the switch-off determination. Details about the full operation of the PWM controller in normal operation are illustrated in the following paragraphs. where IVCCcharge2 is the charging current from the startup cell which is 1.05mA, typically. Exceeds the VCC voltage the turned-on threshold VVCCon of at time t1, the startup cell is switched off, and the IC begins to operate with a soft-start. Due to power consumption of the IC and the fact that still no energy from the auxiliary winding to charge the VCC capacitor before the output voltage is built up, the VCC voltage drops (Phase II). Once the output voltage is high enough, the VCC capacitor receives then energy from the auxiliary winding from the time point t2 on. The VCC 3.3.1 Zero crossing In the system, the voltage from the auxiliary winding is applied to the zero-crossing pin through a RC network, which provides a time delay to the voltage from the auxiliary winding. Internally, this pin is connected to a clamping network, a zero-crossing detector, an output overvoltage detector and a ringing suppression time controller. During on-state of the power switch a negative voltage applies to the ZCV pin. Through the internal clamping network, the voltage at the pin is clamped to certain level. VVCCoff t1 Figure 3 t2 t VCC voltage at start up The time taking for the VCC pre-charging can then be approximately calculated as: t V ⋅C VCCon vcc = -----------------------------------------1 I VCCch arg e2 Version 1.0 7 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Functional Description and the common ground. The sensed voltage across the shunt resistor vCS is applied to an internal current measurement unit, and its output voltage V1 is compared with the voltage at pin VR. Once the voltage V1 exceeds the voltage VVR, the output flip-flop is reset. As a result, the main power switch is switched off. The relationship between the V1 and the vCS is described by: The voltage vZC is also used for the output overvoltage protection. Once the voltage at this pin is higher than the threshold VZCOVP during off-time of the main switch, the IC is latched off after a fixed blanking time. To achieve the switch-on at voltage valley, the voltage from the auxiliary winding is fed to a time delay network (the RC network consists of Dzc, Rzc1, Rzc2 and Czc as shown in typical application circuit) before it is applied to the zero-crossing detector through the ZC pin. The needed time delay to the main oscillation signal ∆t should be approximately one fourth of the oscillation period (by transformer primary inductor and drainsource capacitor) minus the propagation delay from thedetected zero-crossing to the switch-on of the main switch tdelay, theoretically: T osc ∆t = ------------ – t delay 4 V td = C R ⋅R zc1 zc2 ⋅ --------------------------------zc R zc1 + R zc2 [2] [3] 3.4 CS + 0,7 [4] Current Limitation There is a cycle by cycle current limitation realized by the current limit comparator to provide an overcurrent detection. The source current of the MOSFET is sensed via a sense resistor RCS. By means of RCS the source current is transformed to a sense voltage VCS which is fed into the pin CS. If the voltage VCS exceeds an internal voltage limit, adjusted according to the Mains voltage, the comparator immediately turns off the gate drive. To prevent the Current Limitation process from distortions caused by leading edge spikes, a Leading Edge Blanking time (tLEB) is integrated in the current sensing path. A further comparator is implemented to detect dangerous current levels (VCSSW) which could occur if one or more transformer windings are shorted or if the secondary diode is shorted. To avoid an accidental latch off, a spike blanking time of tCSSW is integrated in the output path of the comparator. 3.3.2 Ringing suppression time After MOSFET is turned off, there will be some oscillation on VDS, which will also appear on the voltage on ZC pin. To avoid that the MOSFET is turned on mistriggerred by such oscillations, a ringing suppression timer is implemented. The timer is dependent on the voltage vZC. When the voltage vZC is lower than the threshold VZCRS, a longer preset time applies, while a shorter time is set when the voltage vZC is higher than the threshold. 3.3.2.1 Switch on determination After the gate drive goes to low, it can not be changed to high during ring suppression time. After ring suppression time, the gate drive can be turned on when the zero crossing is detected. However, it is also possible that the oscillation between primary inductor and drain-source capacitor damps very fast and IC can not detect a zero crossing. In this case, a maximum off time is implemented. After gate drive has been remained off for the period of TOffMax, the gate drive will be turned on again regardless. This function can effectively prevent the switching frequency from going lower than 20kHz, otherwise which will cause audible noise, during start up. 3.4.1 Foldback Point Correction When the main bus voltage increases, the switch on time becomes shorter and therefore the operating frequency is also increased. As a result, for a constant primary current limit, the maximum possible output power is increased, which the converter may have not been designed to support. To avoid such a situation, the internal foldback point correction circuit varies the VCS voltage limit according to the bus voltage. This means the VCS will be decreased when the bus voltage increases. To keep a constant maximum input power of the converter, the 3.3.3 Switch Off Determination In the converter system, the primary current is sensed by an external shunt resistor, which is connected between low-side terminal of the main power switch Version 1.0 = 3,3 ⋅ V To avoid mistriggering caused by the voltage spike across the shunt resistor at the turn on of the main power switch, a leading edge blanking time, tLEB, is applied to the output of the comparator. In other words, once the gate drive is turned on, the minimum on time of the gate drive is the leading edge blanking time. In addition, there is a maximum on time, tOnMax, limitation implemented in the IC. Once the gate drive has been in high state longer than the maximum on time, it will be turned off to prevent the switching frequency from going too low because of long on time. This time delay should be matched by adjusting the time constant of the RC network which is calculated as: τ 1 8 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Functional Description 3.5 required maximum VCS versus various input bus voltage can be calculated, which is shown in Figure 5. The IC provides full protection functions. The following table summarizes these protection functions. Table 1 Protection features 1 Vcs-max(V) 0.9 0.8 0.7 0.6 80 Variation of the VCS limit voltage according to the IZC current According to the typical application circuit, when MOSFET is turned on, a negative voltage proportional to bus voltage will be coupled to auxiliary winding. Inside ICL8001G, an internal circuit will clamp the voltage on ZC pin to nearly 0V. As a result, the current flowing out from ZC pin can be calculated as I V N BUS a = -----------------------ZC R N ZC1 P VCC Overvoltage Auto Restart Mode VCC Undervoltage Auto Restart Mode Over temperature Auto Restart Mode Output Overvoltage Latched Off Mode Short Winding Latched Off Mode During operation, the VCC voltage is continuously monitored. In case of an under- or an over-voltage, the IC is reset and the main power switch is then kept off. After the VCC voltage falls below the threshold VVCCoff, the startup cell is activated. The VCC capacitor is then charged up. Once the voltage exceeds the threshold VVCCon, the IC begins to operate with a new soft-start. During off-time of the power switch, the voltage at the zero-crossing pin is monitored for output over-voltage detection. If the voltage is higher than the preset threshold vZCOVP, the IC is latched off after the preset blanking time. If the junction temperature of IC exceeds 140 0C, the IC enter into autorestart mode. If the voltage at the current sensing pin is higher than the preset threshold vCSSW during on-time of the power switch, the IC is latched off. This is short-winding protection. During latch-off protection mode, when the VCC voltage drops to 10.5V,the startup cell is activated and the VCC voltage is charged to 18V then the startup cell is shut down again and repeats the previous procedure. There is also a maximum on time limitation inside ICL8001G. Once the gate voltage is high longer than tOnMAx, it is turned off immediately. 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 Vin(V) Figure 5 Protection Functions [5] When this current is higher than IZC_1, the amount of current exceeding this threshold is used to generate an offset to decrease the maximum limit on VCS. Since the ideal curve shown in Figure 5 is a nonlinear one, a digital block in ICL8001G is implemented to get a better control of maximum output power. Additional advantage to use digital circuit is the production tolerance is smaller compared to analog solutions. The typical maximum limit on VCS versus the ZC current is shown in Figure 6. 1 Vcs-max(V) 0.9 0.8 0.7 0.6 300 500 700 900 1100 1300 1500 1700 1900 2100 Iz c(uA) Figure 6 VCS-max versus IZC i Version 1.0 9 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G 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. 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 5.0 V ZCV Voltage VZC -0.3 5.0 V CS Voltage VCS -0.3 5.0 V GD Voltage VOUT -0.3 27 V Maximum current out from ZC pin IZCMAX 3 - mA Junction Temperature Tj -40 125 °C Storage Temperature TS -55 150 °C Thermal Resistance Junction -Ambient RthJA - 185 K/W PG-DSO-8 ESD Capability (incl. Drain Pin) VESD - 2 kV Human body model1) 1) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kΩ 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 VCC Supply Voltage VVCC VVCCoff VVCCOVP V Junction Temperature of Controller TjCon -25 125 Version 1.0 10 Remarks °C May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G 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 - 300 550 µA VVCC =VVCCon -0.2V VCC Charge Current IVCCcharge1 - 5.0 - mA VVCC = 0V IVCCcharge2 0.8 - - mA VVCC = 1V IVCCcharge3 - 1.0 - mA VVCC =VVCCon -0.2V Maximum Input Current of Startup Cell and CoolMOS® IDrainIn - - 2 mA VVCC =VVCCon -0.2V Leakage Current of Startup Cell IStartLeak - 0.2 50 µA VHV= 610V at Tj=100°C Supply Current in normal operation IVCCNM - 1.5 2.3 mA output low Supply Current in Auto Restart Mode with Inactive Gate IVCCAR - 300 - µA IFB = 0A Supply Current in Latch-off Mode IVCClatch - 300 - µA Supply Current in Burst Mode with inactive Gate IVCCburst - 500 950 µA VCC Turn-On Threshold VVCCon 17.0 18.0 19.0 V VCC Turn-Off Threshold VVCCoff 9.8 10.5 11.2 V VCC Turn-On/Off Hysteresis VVCChys - 7.5 - V 4.3.2 VFB = 2.5V, exclude the current flowing out from FB pin Internal Voltage Reference Parameter Internal Reference Voltage Version 1.0 Symbol VREF Limit Values min. typ. max. 4.80 5.00 5.20 11 Unit Test Condition V Measured at pin FB IFB=0 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Electrical Characteristics 4.3.3 PWM Section Parameter Symbol Limit Values min. typ. max. Unit Feedback Pull-Up Resistor RFB 14 23 33 kΩ PWM-OP Gain GPWM 3.25 3.3 3.35 - Offset for Voltage Ramp VPWM 0.63 0.7 0.77 V Maximum on time in normal operation tOnMax 22 30 41 µs 4.3.4 Current Sense Parameter Symbol Limit Values min. typ. max. Unit Peak current limitation in normal operation VCSth 0.97 1.03 1.09 V Leading Edge Blanking time tLEB 200 330 460 ns 4.3.5 Test Condition Soft Start Parameter Symbol Limit Values Unit min. typ. max. 8.5 12 - ms Soft-Start time tSS soft-start time step tSS_S1) - 3 - ms 1) - 1.76 - V - 0.56 - V Internal regulation voltage at first step VSS1 Internal regulation voltage step at soft start VSS_S1) 1) Test Condition Test Condition The parameter is not subjected to production test - verified by design/characterization 4.3.6 Foldback Point Correction Parameter Symbol Limit Values min. typ. max. Unit ZCV current first step threshold IZC_FS 0.35 0.5 0.621 mA ZCV current last step threshold IZC_LS 1.3 1.7 2.2 mA CS threshold minimum VCSMF - 0.66 - V Version 1.0 12 Test Condition Izc=2.2mA, VFB=3.8V May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Electrical Characteristics 4.3.7 Digital Zero Crossing Parameter Symbol Limit Values Unit Test Condition min. typ. max. Zero crossing threshold voltage VZCCT 50 100 170 mV Ringing suppression threshold VZCRS - 0.7 - V Minimum ringing suppression time tZCRS1 1.62 2.5 4.5 µs VZC > VZCRS Maximum ringing suppression time tZCRS2 - 25 - µs VZC < VZCRS ZCV current for IC switch threshold to high line IZCSH - 1.3 - mA ZCV current for IC switch threshold to low line IZCSL - 0.8 - mA Maximum restart time in normal operation tOffMax 30 42 57.5 µs 4.3.8 Protection Parameter Symbol Limit Values min. typ. max. Unit VCC overvoltage threshold VVCCOVP 24.0 25.0 26.0 V Output Overvoltage detection threshold at the ZCV pin VZCOVP 3.55 3.7 3.84 V Blanking time for Output Overvoltage protection tZCOVP Threshold for short winding protection VCSSW 1.63 1.68 1.78 V Blanking time for short-windding protection tCSSW - 190 - ns Over temperature protection1) TjCon - 140 - °C Note: Test Condition µs 100 The trend of all the voltage levels in the Control Unit is the same regarding the deviation except VVCCOVP Version 1.0 13 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Electrical Characteristics 4.3.9 Gate Drive Parameter Symbol Limit Values min. Output voltage at logic low VGATElow Output voltage at logic high VGATEhigh 9.0 Unit Test Condition V VVCC=18V IOUT = 10mA V VVCC=18V IOUT = -10mA 1.0 V V VVCC = 7V IOUT = 10mA typ. max. - 1.0 10.0 Output voltage active shut down VGATEasd Rise Time trise - 117 - ns COUT = 1.0nF VGATE= 2V ... 8V Fall Time tfall - 27 - ns COUT = 1.0nF VGATE= 8V ... 2V Version 1.0 14 May 6, 2010 Single-Stage Flyback and PFC Controller ICL8001G Outline Dimension 5 Outline Dimension PG-DSO-8 (Leadfree Plastic Dual Small Outline) 1.27 0.1 0.41 +0.1 -0.05 +0.05 -0.01 0.2 C 0.2 M A C x8 8 5 Index Marking 1 4 5 -0.21) 8˚ MAX. 4 -0.21) 1.75 MAX. 0.1 MIN. (1.5) 0.33 ±0.08 x 45˚ 0.64 ±0.25 6 ±0.2 A Index Marking (Chamfer) 1) Figure 7 Does not include plastic or metal protrusion of 0.15 max. per side PG-DSO-8 (Pb-free lead plating Plastic Dual Small Outline) Dimensions in mm Version 1.0 15 May 6, 2010 Total Quality Management Qualität hat für uns eine umfassende Bedeutung. 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