SENSITRON SEMICONDUCTOR PFCU-3000 TECHNICAL DATA DATA SHEET 5112 REV. - 3000W Single-Phase Power Factor Correction Converters Description Harmonic current distortion is a common power quality problem. Its adverse effects include degradation of system voltage waveforms, reduction of power factor, etc. The 3000W single-phase ac-dc converter with Power Factor Correction (PFC) is designed to reduce harmonic currents and achieve near unity power factor in single-phase systems with frequency ranging from 45 Hz to 65Hz. The 3000W PFC converter is composed of a rectifier bridge followed by a boost dc-dc converter employing average current control. Features • • • • • • • • Single-phase AC input, 180VAC ~ 265VAC input voltage, 45Hz ~ 65 Hz input frequency 395VDC output voltage Up to 3000W output power 50kHz switching frequency Near unity power factor Maximum 6% total harmonic current distortion at 220VAC, 3000W Over voltage, under voltage, over temperature protection, and instantaneous input current protection. Base plate rated to 100 oC Block Diagram Voltage Regulator DC/DC 15 ohm +12V DC+ Inrush current resistor L N 100 ohm Average Current Controller L_EN _ Vref + Enable TEMP DC- TEMP Sensor COM ON Figure 1 Block diagram of 3000W single-phase PFC Converter • 221 WEST INDUSTRY COURT • DEER PARK, NY 11729-4681 • PHONE (631) 586-7600 • FAX (631) 242-9798 • • World Wide Web Site - http://www.sensitron.com • E-mail Address - [email protected] • SENSITRON SEMICONDUCTOR PFCU-3000 TECHNICAL DATA DATA SHEET 5112 REV. - Table 1 Electrical Characteristics (TA=25 oC, unless otherwise specified) PARAMETER SYMBOL MIN TYP MAX UNIT INPUT Input Voltage Vin 180 265 VAC Input Frequency f 45 65 Hz Startup Input Voltage 160 Soft Start Time I0=0 A, Output filter capacitor = 1400μF Inrush Current I0=0 A 0.7 V 1.5 sec 22 50 A 390 395 400 V 380 385 390 V 3000 W OUTPUT Output Voltage I0=0.8A V0 I0=8.0A Output Power (See note 1) P0 PROTECTION Over Output Voltage Protection (Latching) 460 VDC Over Instantaneous Input Current Protection (Auto Recovery) 59 A Thermal Protection (Auto Recovery) 100 o C MISCELLANEOUS Operating Temperature (See note 2) TA Thermal Resistance (Junction to Case) Rөjc -55 100 C o 0.09 Isolation (Input to Case) o C/W 1500 VAC ELECTRICAL PERFORMANCE Power Factor PF I0=4 A Vin= 180VAC 4 6 Vin= 220VAC 4 6 6 7 5 6 Vin= 265VAC Total Harmonic Current Distortion (See note 1) Vin= 180VAC I0=8 A 0.99 ATHD Vin= 220VAC % % Vin= 265VAC I0=4 A Vin= 180VAC 92 Vin= 220VAC 93 Vin= 265VAC Efficiency Vin= 180VAC I0=8 A η % 94 90 Vin= 220VAC 92 Vin= 265VAC 93 • 221 WEST INDUSTRY COURT • DEER PARK, NY 11729-4681 • PHONE (631) 586-7600 • FAX (631) 242-9798 • • World Wide Web Site - http://www.sensitron.com • E-mail Address - [email protected] • % SENSITRON SEMICONDUCTOR PFCU-3000 TECHNICAL DATA DATA SHEET 5112 REV. Note: 1) When the output power is below 10% of the rated power, the input current will be significantly distorted. However, the output voltage remains in regulation. 2) Not tested on actual units. Ensured by design. PIN Description SYMBOL DESCRIPTION N, L DC+, DC- AC line inputs DC outputs L_EN Load enable pin. Open collector output with an internal 100 ohm resistor. Maximum collector current is 100mA. When Vo is lower than 365V, L_EN is shorted to “COM”. ON PFC enable pin. When “ON” pin is connected to COM, PFC is enabled. Otherwise, PFC is disabled and Vo is the rectified AC input voltage. COM Control Signal Reference. Connected to “DC-“internally. 12V Bias Voltage Supply. Output current up to 20mA. TEMP Substrate temperature sensor output. 10mV/ Kelvin Or (TEMP × 100 − 273 ) oC TYPICAL APPLICATION L L_EN DC+ EMI AC Line Load PFC Filter N DC- Figure 2. Typical application of 3000W single-phase PFC converter Figure 2 illustrates the configuration of 3000W single-phase PFC converter in a typical application. External capacitor filter is required at the PFC converter output. Selection of the output capacitor is usually determined by the switching frequency ripple current, the second harmonic ripple current, the DC voltage, the output ripple voltage and the hold-up time. All electrical characteristics in this datasheet are tested with an output capacitor of 1400μF, which generates maximum 20V peak-peak 2nd harmonic ripple voltage. The inrush current is limited by an internal 15 ohm surge resistor. To reduce power loss, the resistor is shorted after the PFC is powered up for 350m sec, no matter if the PFC converter is enabled. Having a heavy load connected to the PFC output during start-up time will delay the charge of the output capacitor, and may result in high input current spikes. If customer load does not have under voltage lockout, it is recommended to insert a switch (e.g. a relay), controlled by the pin “L_EN”, between the load and the output capacitor, as shown in Figure 2. “L_EN” changes its status when the output voltage reaches 365VDC. The logic of “L_EN” is configurable. • 221 WEST INDUSTRY COURT • DEER PARK, NY 11729-4681 • PHONE (631) 586-7600 • FAX (631) 242-9798 • • World Wide Web Site - http://www.sensitron.com • E-mail Address - [email protected] • SENSITRON SEMICONDUCTOR PFCU-3000 TECHNICAL DATA DATA SHEET 5112 REV. - MECHANICAL OUTLINE • 221 WEST INDUSTRY COURT • DEER PARK, NY 11729-4681 • PHONE (631) 586-7600 • FAX (631) 242-9798 • • World Wide Web Site - http://www.sensitron.com • E-mail Address - [email protected] • SENSITRON SEMICONDUCTOR PFCU-3000 TECHNICAL DATA DATA SHEET 5112 REV. - DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by means of users’ fail-safe precautions or other arrangement . 3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user’s units according to the datasheet(s). 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