Da ta s h e e t, V e rs i on 2 .0 , 0 4 Ju l y 2 0 1 1 Po wer Ma na ge me nt & Su p ply N e v e r s t o p t h i n k i n g . ICE1HS01G-1 Revision History: 04 July 2011 Previous Version: Page 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 04 July 2011 Published by Infineon Technologies AG, 81726 Munich, Germany, © 2011 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. 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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. ICE1HS01G-1 Half-Bridge Resonant Controller Product Highlights • • • • • Minimum number of external components High accuracy oscillator Two-level over current protection Over load/open loop protection Mains undervoltage protection with adjustable hysteresis • Adjustable blanking time for over load protection and restart Applications Features • • • • • • • • • • PG-DSO-8 DSO8 package • Maximum 600kHz switching frequency • Adjustable minimum switching frequency with high • accuracy 50% duty cycle Mains input under voltage protection with adjustable hysteresis Two levels of overcurrent protection: frequency shift and latch off Open-loop/over load protection with extended blanking time Built-in digital and nonlinear softstart Adjustable restart time during fault protection period High-accuracy oscillator LCD/PDP TV AC-DC adapter Audio SMPS Typical Application Circuit WSH Q1 Cbus VINDC Auxiliary Supply Lf DO1 Cf CO VO WP Driver Module WSL DO2 Q2 RINS1 CINS GND VCC HG CS LG RB1 CCS1 CCS2 VINS ICE1HS01/G RCS1 CS RINS2 FMIN DCS2 CC2 OPTO RFMIN CC1 TL431 CFB Type ICE1HS01G-1 Version 2.0 ROS1 RC1 DCS1 RCS2 FB RB2 ROS2 Marking Package 1H01-1 PG-DSO-8 3 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Table of Contents Page 1 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.1 Pin configuration with PG-DSO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.2 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2 Representative Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 3 3.1 3.1.1 3.1.2 3.1.3 3.1.4 3.1.5 3.2 3.3 3.4 3.5 3.6 3.7 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Oscillator and Pulse Frequency Modulation . . . . . . . . . . . . . . . . . . . . . . . . .7 Minimum charge current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Feedback regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Current sense current ICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Soft start current ISS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Charge current Ichg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 IC power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Current sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Over current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Mains Input Voltage Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Over load protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 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 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Oscillator Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Input voltage sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Current sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Over load/Open loop protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Gate driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 5 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 6 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Version 2.0 4 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 1 1.1 Pin Configuration and Functionality Pin Configuration and Functionality switching frequency and the switching frequency during soft start are also related to the current flowing out of FMIN pin. Pin configuration with PG-DSO-8 CS (current sense) The current sense signal is fed to this pin. Inside the IC, two comparators are provided. If the voltage on CS pin is higher than the first threshold, IC will increase the switching frequency to limit the maximum output power of the converter. If the voltage on this pin exceeds the second threshold, IC will be latched off immediately. Pin Symbol Function 1 FMIN Minimum switching frequency 2 CS Current sense 3 FB Feedback voltage 4 VINS Input voltage sense 5 GND IC ground 6 LG Low side gate drive 7 HG High side gate drive 8 VCC IC power supply FMIN 1 8 FB (feedback) This pin is connected to the collector of the optocoupler. Internally, during normal operation, this pin is connected to reference voltage source with a pull-up resistor (RFB). The IC uses the voltage on this pin to adjust the switching frequency within the range of maximum and minimum frequency set by FMIN pin. If FB voltage is higher than VFBH for a certain fixed blanking time, an extended timer will be started. If over load/open loop protection exists longer than the extended blanking time, IC will enter auto-restart mode. An off timer starts from the instant IC stops switching till IC starts another soft start. This off time is determined by the resistors and capacitor connected to VINS pin. VCC CS 2 7 HG FB 3 6 LG VINS 4 5 GND VINS (mains input voltage sense) The mains input voltage is fed to this pin via a resistive voltage divider. If the voltage on VINS pin is higher than the threshold VINSON, IC will start to operate with softstart when VCC increases beyond turn on threshold. During operation, if the voltage on this pin falls below the threshold VINSON, IC will stop switching until the voltage on this pin increases again. When IC goes into over load protection mode, IC will stop switching and try to restart after a period of time. This period can be adjusted by connecting different capacitors between this pin and ground. GND (ground) IC common ground. Figure 1 Pin configuration with PG-DSO-8 LG (low side gate drive) Low side power MOSFET driver. 1.2 Pin Functionality HG (high-side gate drive) Up side power MOSFET driver. FMIN (minimum switching frequency) An external resistor is connected between this pin and the ground. The voltage of this pin is constant during operation and thus the resistance determines the current flowing out of this pin. The minimum switching frequency is determined by this current. The maximum Version 2.0 VCC (IC power supply) Supply voltage of the IC. 5 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Representative Block Diagram 2 Representative Block Diagram Figure 2 Version 2.0 Representative Block Diagram 6 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Functional description 3 Functional description Everytime the capacitor CFS is charged by Ichg to VCH, the upper switch is turned off and CFS will be discharged through Idisc. The charge time determines the on time for gate signal. The discharge time determines the dead time during transition from one gate off to another gate on. The switching waveforms of the oscillator and gate signals are shown in Figure 4. The controller ICE1HS01G-1 with two gate outputs is specially designed for LLC resonant half-bridge converters. An oscillator with accurately-programmed frequency range is built inside the IC. The two gate signals are obtained by passing the signal out from the oscillator through a divide-by-two flip-flop. Therefore, two signals are of exactly 50% duty cycle and 180o out of phase. To guarantee the zero-voltage-switching and safe operation in half-bridge topologies, a fixed dead time of 380ns is inserted in each internal when one switch is turned off and the other is turned on. For LLC resonant half-bridge converter, the output voltage is regulated by changing the switching frequency. ICE1HS01G-1 offers the designer to choose suitable operation frequency range by programming the oscillator with one single resistor. In addition, ICE1HS01G-1 offers a programmed softstart function to limit both the inrush current and the overshoot in output voltage. To protect the system during operation, mains input under-voltage protection and over-current protection are integrated in ICE1HS01G-1 as well. VCF 4V 1V t Vdelay 5V 0V t VLG 10V 0V t VHG 3.1 Oscillator and Pulse Frequency Modulation 10V 0V The oscillator is programmed with only one external resistor RFMIN connected to FMIN pin. The trimmed capacitor CFS is built inside the IC with high accuracy. The simplified oscillator circuit is shown in Figure 3. td Figure 4 FMIN QF2 QF3 Oscillator waveforms According to Figures 3 and 4, the on time of each gate can be obtained as Vdd QF1 1.5V t ICE1HS01G CF1 Ichg_min 3C FS T on = -----------I chg RFMIN ISS Q FB S VCH CO1 1 f s = --------------------------------3C FS 2 æ ------------ + T dö è I chg ø IFB Idisc CS The switching frequency can be obtained as R Ichg ICS CFS [2] VCL CO2 R Q [3] S where the dead time Td is fixed as 380ns. Figure 3 Simplified oscillator circuit 3.1.1 Minimum charge current The voltage on pin FMIN is a constant of 1.5V during normal operation. The resistor RFMIN determines the current (IFMIN) flowing out from FMIN pin. Around onetenth of IFMIN is defined as the minimum charging current (Ichg_min), which in turn defines the minimum switching frequency as follows. The charge current Ichg is sum of four currents which are Ichg_min, IFB, ICS and ISS. I chg = I chgmin + I FB + I cs + I ss Version 2.0 [1] 7 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Minimum switching frequency [kHz] Functional description 3.1.3 Current sense current ICS In LLC resonant topologies, it is necessary to limit the resonant current in case of short circuit or other fault conditions. It is achieved by adding another current Ics to the charging current Ichg. ICS is limited to 3 times of the minimum charge current. 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 0 3.1.4 Soft start current ISS To limit the inrush current and output overshoot during start up, the switching frequency shall be necessary high at start up. The switching frequency will change gradually toward the minimum switching frequency until the feedback voltage comes into regulation. The switching frequency will then go to desired value according to load and input conditions. The soft start current Iss also has a upper limit of around 3.4 times of minimum charge current. Details of soft start will be shown later. 5 10 15 20 25 30 35 40 45 50 55 60 65 RFMIN [kohm] Figure 5 FMIN versus RFMIN 3.1.5 Charge current Ichg The charge current Ichg for IC oscillator capacitor CFS is the sum of the four parts including Ichg_min, IFB, ISS and ICS. To limit the maximum switching frequency, maximum value of Ichg is 5 times of Ichg_min. In summary, the maximum charge current during normal operation is 3Ichg_min while the maximum charge current during fault condition or softstart is around 4Ichg_min and 4.43*Ichg_min respectively. Figure 7 shows the maximum switching frequency versus minimum switching frequency during normal operation. 450 400 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 350 FMAX [kHz] Frequency [kHz] 3.1.2 Feedback regulation The output information is fed into the controller through feedback voltage. If the output power is higher, the feedback voltage will be higher, which will cause the switching frequency to decrease and vice versa. The regulation of switching frequency is achieved by changing the charging current. An accurate operational transconductance amplifier (OTA) is used to translate the feedback voltage VFB into current IFB. The effective range of feedback voltage is from 0.9V to 3.9V. Figure 6 graphs the relationship between the actual switching frequency and feedback voltage VFB when RFMIN=22kohm. 300 250 200 150 100 50 0 0 25 50 75 100 125 150 175 200 FMIN [kHz] Figure 7 0 0.5 Figure 6 1 1.5 2 2.5 3 Feedback voltage Vfb [V] 3.5 4 4.5 Fmax versus Fmin during normal operation Switching frequency versus VFB Burst mode operation is also provided by ICE1HS01G1. During LLC operation, the feedback signal VFB is continuously monitored. When VFB drops below VFB_off, the switching signal will be disabled after a fixed blanking time TFB. VFB will then rise as Vout starts to decrease due to no switching signal. Once VFB exceeds the threshold VFB_on, the IC resumes to normal operation. Version 2.0 8 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Functional description 3.4 Figure 8 shows the maximum switching frequency versus minimum switching frequency during softstart. Current sense in LLC half bridge converters is for protection purpose. The voltage of resonant capacitor CS is the sum of the resonant voltage and the dc voltage which is equal to half of the input bus voltage. If resonant current is higher, then the voltage on CS is higher.The current informations for both primary side and secondary side are almost the same and can be obtained by dividing and filtering the resonant voltage. The circuit is shown in Figure 10. 550 FMAX_soft start [kHz] Current sense 500 450 400 350 300 250 200 150 100 50 0 0 25 50 75 100 125 150 175 200 VBUS FMIN[kHz] Figure 8 3.2 The controller ICE1HS01G-1 is targeting at applications with auxiliary power supply. In most cases, a front-end PFC pre-regulator with a PFC controller is used in the same system. The controller ICE1HS01G-1 starts to operate when the supply voltage VVCC reaches the on-threshold, VVCCon of 12V. The minimum operating voltage after turn-on, VVCCoff, is at 11V. The maximum recommended operating voltage VVCCmax is 18V. CCS2 Figure 10 3.5 Soft start 300 Frequency [kHz] 250 200 150 100 3.6 50 10 15 20 25 30 35 Time [ms] Figure 9 Switching frequency during softstart when RFMIN=22kohm During soft start, the overload protection is disabled although FB voltage is high. Version 2.0 CCS1 DCS2 Current sense circuit Over current protection Mains Input Voltage Sense The working range of mains input voltage needs to be specified for LLC resonant converter. It is important for the controller to have input voltage sensing function and protection features, which lets the IC stop switching when the input voltage falls below the specified range and restarts when the input voltage increases back within the range. The mains input voltage sensing circuit is shown Figure 2. With the 0 5 RCS2 RCS1 The controller ICE1HS01G-1 incorporates two-level over current protection. In case of over-load condition, the lower level OCP will be triggered, the switching frequency will be increased according to the duration and power of the over load. The higher level OCP is used to protect the converter if transformer winding is shorted, the IC will be latched immediately. If VCS is higher than 0.8V, IC will boost up the switching frequency. If Vcs is lower than 0.75V, IC will resume to normal operation gradually. If VCS is always higher than 0.8V for 1.5ms, the frequency will rise to its maximum level. And vice versa. To sum up, ICE1HS01G-1 will increase the switching frequency to limit the resonant current in case of temporary over-load and will also decrease the switching frequency to its normal value after over-load condition goes away. At the beginning of the startup phase, the IC provides a soft start with duration of 32ms with 32 steps. During this period, the switching frequency is controlled internally by changing the current ISS. Figure 9 illustrates the actual switching frequency vs. startup time when RFMIN=22kohm. During softstart, the frequency starts from 250kHz, and step by step drops to normal operation point. 0 DCS1 VCS WP CS Q2 Fmax_ss versus Fmin during soft start IC power supply 3.3 Q1 9 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Functional description current source Ihys connected between VINS and Ground, an adjustable hysteresis between the on and off input voltage can be created as If CFB is 10nF, the time is about 439us. After VFB reaches VFBH, an internal counter will increase by 1 and the capacitor is discharged to 0.5V by QFB again. The charging and discharging process of CFB will be repeated for NOLP_E times if the fault condition still exist. After the last time of NOLP_E the FB voltage is pulled down to zero, IC will stop the switch when FB voltage rises to VFBH again. This is called over load/open loop protection. During the charging and discharging period, the IC will operate with frequency determined by Ichg_min and ICS. [4] V HYS = R INS1 × I hys The mains input voltage is divided by RINS1 and RINS2 as shown in the typical application circuit. A current source Ihys is connected from VINS pin to ground in the IC. If the on and off threshold for mains voltage is Vmainon and Vmainoff, the resistors can be decided as V mainon – V mainoff R INS1 = ------------------------------------------I hys VFB (V) 4.5V V INSON R INS2 = R INS1 × -----------------------------------------V mainoff – V INSON 3.7 5V [5] [6] Over load protection 0.5V t1 In case of open control loop or output over load fault, the FB voltage will increase to its maximum level. If FB voltage is higher than VFBH and this condition last longer than a fixed blanking time of TOLP (20ms), the IC will start the extended blanking timer. The extended blanking timer is realized by charging and discharging the filter capacitor CFB via the pull up resistor RFB and QFB. The circuit for extended blanking timer is shown in Figure 11. Iref I Figure 12 Vdd 1.0V S RFB Q R FB TOLP 24ms CFB1 4.5V CFB2 EnA S QFB T OLP_R 1.2ms Q R CFB3 EnA 0.5V UP Reset OLP CLK S Q AR R AR_R EnA CFB4 0.8V R 0.5V EnA Q Gate_off S CFB5 Figure 11 Circuit connected to FB pin The FB voltage waveform during a OLP period is shown in Figure 12. After FB voltage has been higher than VFBH for the fixed blanking time t1 shown in Figure 11, IC will use internal switch QFB to discharge VFB to VFBL. After the switch QFB is released, CFB will be charged up by Vdd through RFB. The time needed for CFB being charged to VFBH can be calculated as V dd – V FBHö t chg = – ln æ --------------------------× R FB × C FB è V dd – V FBL ø Version 2.0 t3 Time FB voltage waveform during over load protection If the converter returns to normal operation during the extended blanking time period, FB voltage can not reach VFBH again. Therefore, after FB voltage is discharged to zero voltage, if it can not reach VFBH within TOLP_R, IC will reset all the fault timer to zero and return to normal operation. After IC enters into OLP, both switches will be stopped. However, the IC remains active and will try to start with soft start after an adjustable period. This period is realized by charging and discharging the capacitor CINS connected to VINS pin for NOLP_R times. The time is therefore determined by the capacitor CINS and resistor RINS1 and RINS2. The circuit implementation of the adjustable off time is shown in Figure 13 and Figure 14 shows the voltage waveform of VINS in this case. As shown in Figure 14, the CINS is discharged to VINS_L when IC enters into OLP at time t1. After that, an internal constant current source IINST is turned on to charge CINS. Once the voltage on VINS is charged to VINS_H, the current source will be turned off and CINS is discharged by another switch Q3 to VINS_L again. The charging and discharging of CINS is thought as one cycle. The cycle time is also influenced by the bus ICE1HS01G IFB t2 [7] 10 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 voltage. The charging time tcha and discharging time tdisc can be respectively approximated as t disc R eq2 æV - – V INSL ö÷ ç BUS × -----------R INS1 = – ln ç ----------------------------------------------------÷ × R eq2 × C INS R eq2 çV ÷ - – V INSHø è BUS × -----------R INS1 VVINS (V) t cha VINS_H R eq ö æ æ V BUS × ------------ + ( I INST × R eq ) – V INSHö÷ çè R INS1ø = – ln ç ---------------------------------------------------------------------------------------------÷ × R eq × C INS [8] R eq ö ç æV ÷ - + ( I INST × R eq ) – V INSLø è è BUS × -----------R INS1ø [9] VINS_L In [8], Req is the equivalent resistance for paralleling of RINS1 and RINS2. t1 [10] 1 R eq = ---------------------------------1 1 ------------- + ------------R INS1 R INS2 Figure 14 t2 t3 Time VINS voltage waveform during blanking time after OLP and before IC restarts In [9], Req2 is the equivalent resistance for paralleling of RINS1, RINS2 and RQ3 (900ohm typically). 1 R eq2 = -------------------------------------------------1 1 1 ------------- + ------------- + --------R INS1 R INS2 R Q3 [11] IC will repeat the charging and discharging process for NOLP_R times. After that, IC will turn off the switches for both charging and discharging. In addition, the current source for hysteresis will be turned on and another blanking time of TBL_VINS, the time between t2 and t3 as shown in Figure 14, will be added so that VINS pin fully recovers and represents the bus voltage information. IC will start the soft start after the additional blanking time in case VVINS is higher than the VVINSon. Vdd IINST ICE1HS01G Q1 VINS Mains_OK CV1 Ihys 1.25V Q2 4.5V CV2 EnA Q3 CV3 EnA R Q S Q Counter CLK TBL_VINS 20ms AR_R 0.5V AR Figure 13 Version 2.0 Circuit connected to VINS pin 11 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Electrical Characteristics 4 Note: 4.1 Electrical Characteristics All voltages are measured with respect to ground (Pin 5). The voltage levels are valid if other ratings are not violated. Absolute Maximum Ratings Note: 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 8 (VCC) is discharged before assembling the application circuit. Parameter Symbol Limit Values min. max. Unit Remarks VCC Supply Voltage VVCC -0.3 20.51) V VHG Voltage VLG -0.3 18 V VLG Voltage VLG -0.3 18 V CS voltage VCS -0.3 5 V FB voltage VFB -0.3 5 V VINS voltage VVINS -0.3 5 V FMIN voltage VFMIN -0.3 5 V Maximum source current on FMIN IFMIN - 2.5 mA Junction Temperature Tj -40 125 °C Storage Temperature TS -55 150 °C Thermal Resistance Junction-Ambient for PG-DSO-8 RthJA(DSO) - 185 K/W PG-DSO-8 ESD Capability VESD - 2 kV Human body model2) 1) Stress beyond this limit may destroy the device. Functional operation of the device at this or any condition beyond those indicated under 4.2 Operating Range is not implied. Exposure to absolute maximum rated conditions for extended periods of time may affect device reliability. 2) 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 VCC Supply Voltage VVCC 10.2 18 V Junction Temperature TjCon -25 125 °C Version 2.0 12 Remarks 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Electrical Characteristics 4.3 4.3.1 Note: Characteristics Supply Section The electrical characteristics involve the spread of values guaranteed within the specified supply voltage and junction temperature range TJ from – 25 oC to 125oC. Typical values represent the median values, which are related to 25°C. If not otherwise stated, a supply voltage of VCC = 15 V is assumed. Parameter Symbol Limit Values min. typ. max. Unit Test Condition Start up Current IVCCstart 200 350 530 mA VVCCon-0.1V Supply Current in operation with inactive gate IVCCop - - 3 mA no switching; Supply Current in normal operation with active gate IVCCactive - 5.8 - mA Freq=50kHz RFMIN=30kW VFB=4.2V, VCS=0V CL=2.2nF,VVCC=15V VCC Turn-On Threshold VVCCon 11.3 12 12.7 V VCC Hysteresis VVCChys 0.68 0.95 1.25 V VCC Turn-Off Threshold VVCCoff - VVCCon VVCChys - V Trimmed Reference Voltage VREF 4.90 5.0 5.10 V IFB=0 Unit Test Condition 4.3.2 Oscillator Section Parameter Symbol Limit Values min. typ. max. Minimum switching frequency FMIN 47 50 53 kHz RFMIN=30kW; Maximum switching frequency during normal operation FMAX_N - 128 - kHz RFMIN=30kW;VFB=0.6V, VCS=0V, after softstart Maximum switching frequency during protection FMAX_P - 203 - kHz RFMIN=30kW;VFB=0.6V, VCS=1V Absolute Maximum switching frequency FMAX_abs - 609 - kHz RFMIN=4.8kW, VFB=0.9V, VCS=1V, soft start first cycle Reference voltage on FMIN VOSCRef 1.44 1.5 1.56 V Dead time Td 340 380 420 ns RFMIN=30kW;VFB=0.6V, VCS=0V Oscillation duty cycle D 48 50 52 % based on calculation Version 2.0 13 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Electrical Characteristics 4.3.3 Input voltage sense Parameter Symbol Limit Values min. typ. max. Unit Input voltage on threshold VVINSon 1.2 1.25 1.3 V Bias current on VINS pin Ihys 9 12 15 mA Blanking time for leaving mains undervoltage protection TVINS_out - 500 - ms - 50 - ms Blanking time for entering TVINS_in mains under voltage protection 4.3.4 Test Condition Current sense Parameter Overcurrent protection low Symbol VCSL Hysteresis voltage for overcurrent protection low Limit Values Unit min. typ. max. 0.75 0.8 0.85 V - 50 - mV Test Condition Overcurrent protection high VCSH 1.57 1.63 1.7 V Blanking time for OCP latch TOCP_L - 300 - ns Maximum switching frequency during over current protection FMAX_C - 163 - kHz RFMIN=30kW;VFB=4.2V, VCS=1V, after soft start and 2ms after VCS higher than 0.8V Counter input voltage high VCS_CH - 4.5 - V Not subject to test Counter input voltage low level VCS_CL - 0.5 - V Not subject to test Blanking time after each gate is turned on - 250 - ns Version 2.0 TLEB 14 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Electrical Characteristics 4.3.5 Soft start Parameter Symbol Limit Values min. typ. max. Unit Test Condition ms Test as a 32ms softstart time Soft start timer TSS - 1 - Soft start steps NSS - 32 - - 3.43 - - 184 - kHz RFMIN=30kW; Td=380ns; first cycle softstart Limit Values Unit Test Condition Ratio of ISS over Ichgmin Soft start frequency 4.3.6 Fss_step Not subject to test Feedback Parameter Symbol min. typ. max. Feedback voltage below which there is no regulation VFB_min - 0.9 - V Feedback voltage above which there is no regulation VFB_max - 3.9 - V Pull up resistance RFB 15 20 25 kW Feedback voltage below which there is no switch VFB_off - 0.2 - V Feedback voltage above which IC resumes switch VFB_on - 0.3 - V Blanking time for switch on and off TFB - 200 - ns Note: The trend of all the voltage levels in the Control Unit is the same regarding the deviation except VVCCOVP Version 2.0 15 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Electrical Characteristics 4.3.7 Over load/Open loop protection Feedback voltage for open loop/over load protection VFBH - 4.5 - V Feedback voltage high level for extended timer VFB_CH - 4.5 - V Feedback voltage low level for extended timer VFB_CL - 0.5 - V On resistance of pulling down switch QFB RQFB - 900 - ohm Fixed Blanking time for open loop/over load protection TOLP_F - 20 - ms Maximum time for FB voltage to go up to VFBH during extended blanking timer TOLP_R - 1.28 - ms Extended counter NOLP_E - 512 - Charging current on VINS pin for restart time IINST - 750 - mA Maximum voltage on VINS pin charged by IINST VINS_H - 4.5 - V Minimum voltage on VINS pin pulled down by Q3 VINS_L - 0.5 - V On resistance of pulling down switch Q3 RQ3 - 900 - ohm Restart counter number NOLP_R - 2048 - Blanking time before IC restarts after restart counter reaches 2048 TBL_VINS - 20 - 4.3.8 ms Gate driver Parameter Symbol Limit Values min. typ. max. Unit Test Condition Output voltage at logic low VGATElow - - 1.5 V VVCC=5V, IOUT = 20mA Output voltage at logic high VGATEhigh - 9 - V VVCC=VVCCoff+0.2V CL=2.2nF Output voltage active shut down VGATEasd - 1.0 - V VVCC = 5V, IOUT = 20mA Rise Time trise - 100 - ns CL = 2.2nF Fall Time tfall - 25 - ns CL = 2.2nF GATE current, Peak Rising Edge IGATE_R 1 - - A CL = 2.2nF1) GATE current, Peak Falling Edge IGATE_F - - 1.5 A CL = 2.2nF1) 1) Design characteristics (not meant for production testing) Version 2.0 16 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Outline Dimension 5 Outline Dimension PG-DSO-8 (Plastic Dual Small Outline) Figure 15 Version 2.0 PG-DSO-8 17 02 July 2011 Half-Bridge Resonant Controller ICE1HS01G-1 Marking 6 Marking Marking Figure 16 Version 2.0 Marking for ICE1HS01G-1 18 02 July 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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