IL700D HIGH VOLTAGE HIGH-FREQUENCY STEP-UP SWITCHING REGULATOR-CONTROLLER The IL700D is a monolithic high voltage switching regulator-controllers with PWM/PFM control that is specifically designed to operate from a rectified 220 VAC line source. This device contain a reference voltage source, oscillation circuit, error amplifier, phase compensation circuit, PWM control circuit, power supply 450 V MOS-transistor, 700 V DMOS power switch, and other components. Since the oscillation frequency is a high 600 kHz, with the addition of a small external component, the IC can function as switching regulator with high efficiency. The IL700D provides low-ripple power, high-efficiency, and excellent transient characteristics thanks to a PWM control circuit capable of varying the duty ratio linearly from 0% to 82% and optimized error amplifier, and phase compensation circuit. The IL700D contains a PWM/PFM switching control circuit so that it operates using PWM control with a duty ratio of 27% or higher and using PFM control with a duty ratio of lower than 27% to ensure high efficiency in all load ranges. Pin No. 1 2 3 4 5 6 Pin Name 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GND FB CSS SENSE NC NC NC NC SOURCE SOURCE SOURCE NC NC DRAIN NC VddHV NC Vdd Vz CVREF Function Not used IC high power supply Not used IC internal low power supply Voltage on zener diode Reference voltage source pass capacitor connection pin Gnd pin FB for external setting type Soft-start capacitor connection pin Current limit detection pin Not used Not used Not used Not used Power switch source Power switch source Power switch source Not used Not used Power Switch Drain Korzhenevskogo 12, Minsk, 220108, Republic of Belarus Fax: +375 (17) 278 28 22, 1 Phone: +375 (17) 278 07 11, 212 24 70, 212 24 61, 212 69 16 E-mail: [email protected] URL: www.bms.by IL235Z Features • Operate from a rectified 220 VAC line source. • Oscillation frequency: 600 kHz. • Output voltage external setting (FB) type available. FB terminal voltage (VFB) 1.0 V. • Minimum of external components. The only peripheral components that can be used with IC are a coil, a diode, capacitors, and a resistor. • Built-in converter of high voltage in low voltage, using 450 V MOS-transistor and Zener diode. • Built-in 700 V DMOS power switch. • Duty ratio: 0% to 27% typ. PFM control 27% to 82% typ. PWM control • Built-in current limiting circuit: Assigned by internal resistor (RSENSE). • Soft-start function: Can be set with an external capacitor (CSS). Block diagram DRAIN Vdd Phase compensation circuit TR1 Triangular wave oscillation circuit SENSE VddHV TR2 Rs R1 R2 Vz Cs PWM/PFM switching control circuit Soft-start circuit SOURCE 120mV Voltage/current reference ZD1 RSENSE FB VREF=1.0V СSS СVREF * - Pin number are defined during designing Korzhenevskogo 12, Minsk, 220108, Republic of Belarus Fax: +375 (17) 278 28 22, 2 Phone: +375 (17) 278 07 11, 212 24 70, 212 24 61, 212 69 16 E-mail: [email protected] URL: www.bms.by Vss IL700D ABSOLUTE MAXIMUM RATING (Ta=25ºC unless otherwise specified) Item Symbol Vdd VddHV VDRAIN IDRAIN VFB VCVREF VCSS VSENSE Vz PD Vdd pin voltage VddHV pin voltage DRAIN pin voltage DRAIN pin current FB pin voltage CVREF pin voltage CSS pin voltage SENSE pin voltage Vz pin voltage Power dissipation ELECTRICAL CHARACTERISTICS Parameter specified) Conditions VddHV=220V, Duty=50%, Ta=25oC FB pin voltage VddHV=220V, Duty=50%, Ta= -25oC +85oC 30V ≤ VddHV ≤ 300V, Duty=50% Oscillation start voltage Current consumption in static mode Current consumption in dynamic mode Current limit detection voltage Current limit detection voltage DRAIN pin output current Oscillation frequency Oscillation frequency Maximum duty ratio PWM/PFM-control switch duty ratio Drain-Source Off-State Leakage Current Soft-Start time Units V V V mA V V V V V mW (Ta=25ºC unless otherwise FB pin voltage Line regulation Ratings Vss-0.3 to 16 Vss-0.3 to 450 Vss-0.3 to 700 300 Vss-0.3 to 16 Vss-0.3 to Vdd+0.3 Vss-0.3 to Vdd+0.3 Vss-0.3 to Vdd+0.3 Vss-0.3 to Vdd+0.3 650 No external component. The voltage is applied to VddHV VddHV=220V, VFB=1.5V VddHV=220V, VFB=0.5V Judge oscillation stop in “H”, at DRAIN pin, Ta=25oC Judge oscillation stop in “H”, at DRAIN pin Ta= -25oC +85oC VddHV=220V VddHV=220V. Measure waveform at DRAIN pin Ta=25oC VddHV=220V. Measure waveform at DRAIN pin Ta= -25oC +85oC VddHV=220V. Measure waveform at DRAIN pin VddHV=220V. Under no load VDRAIN=220V VddHV=220V, CSS=4700pF, IOUT=50mA. Measure time until oscillation occurs at DRAIN pin Korzhenevskogo 12, Minsk, 220108, Republic of Belarus Fax: +375 (17) 278 28 22, 3 Phone: +375 (17) 278 07 11, 212 24 70, 212 24 61, 212 69 16 E-mail: [email protected] URL: www.bms.by Symbol VFB VFB IL700D Min Typ Max Unit 0.98 1.0 1.02 V 0.97 1.0 1.03 V ∆VFB1 VST - - 40 20 mV V ISS1 - - 1 mA ISS2 - - 4 mA VSENSE 90 120 150 mV VSENSE 80 120 160 mV IDRAIN fOSC 68 510 600 172 690 mA kHz fOSC 500 600 700 kHz MaxDuty 73 82 89 % PFMDuty IDRAIN(off) 19 - 27 - 35 50 % µA TSS 3.0 - 14.0 ms IL235Z UF1001 1N4764 AC IN VddHV IL700T Vdd 0.1мF DRAIN Vz 5V 1A 100мF 220мF MURS160 22мF 3.3мH GND 1N4148 12 k FB 2.2мF SENSE CSS CVREF Vss SOURCE 3k 10nF 4.7nF 10nF Application Diagram, 85 - 265 VAC Input, 5V/1A Output Flyback Converter Vcc 0.22мF 330мH VddHV 10мF Vdd 0.1мF DRAIN IL700T Vz 5V 200mA 330мH 12 k FB SENSE CSS CVREF Vss SOURCE GND MURS160 220мF 30 10nF 4.7nF 10nF GND Application Diagram, 100 - 400 VDC Input, 5V/200mA Output SEPIC Converter MURS160 AC IN MURS160 MURS160 10nF 820мH 4.7мF Vdd 0.1мF LEDх8 1mH DRAIN VddHV IL700T FB 0.1мF SENSE Vz CSS CVREF Vss SOURCE 10nF 4.7nF 10nF 100 Application Diagram, 85 - 265 VAC Input, 1÷100V/10mA Output Korzhenevskogo 12, Minsk, 220108, Republic of Belarus Fax: +375 (17) 278 28 22, 4 Phone: +375 (17) 278 07 11, 212 24 70, 212 24 61, 212 69 16 E-mail: [email protected] URL: www.bms.by