The UCC28019 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM)

UCC28019

Manufacturer Part NumberUCC28019
DescriptionThe UCC28019 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM)
ManufacturerTexas Instruments
UCC28019 datasheet
 

Specifications of UCC28019

Uvlo Thresholds On/off(v)10.5/9.5Operating Supply(max)(v)22
Startup Current(ma)0.1Operating Supply Current(ma)7
Vref(v)5Vref Tol(%)2
Duty Cycle(max)(%)99.3Practical Operating Frequency(max)(mhz)0.65
Pin/package8PDIP, 8SOIC  
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8-Pin Continuous Conduction Mode (CCM) PFC Controller
FEATURES
1
8-pin Solution Without Sensing Line Voltage
Reduces External Components
Wide-Range Universal AC Input Voltage
Fixed 65-kHz Operating Frequency
Maximum Duty Cycle of 97%
Output Over/Under-Voltage Protection
Input Brown-Out Protection
Cycle-by-Cycle Peak Current Limiting
Open Loop Detection
Low-Power User Controlled Standby Mode
APPLICATIONS
CCM Boost Power Factor Correction Power
Converters in the 100 W to >2 kW Range
Server and Desktop Power Supplies
Telecom Rectifiers
Industrial Electronics
Home Electronics
CONTENTS
Electrical Characteristics
3
Device Information
10
Application Information
12
Design Example
23
Additional References
43
EMI Filter
LINE
Bridge
INPUT
Rectifier
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
DESCRIPTION
The UCC28019 8-pin active Power Factor Correction
(PFC) controller uses the boost topology operating in
Continuous Conduction Mode (CCM). The controller
is suitable for systems in the 100 W to >2 kW range
over a wide-range universal ac line input. Startup
current during under-voltage lockout is less than 200
A. The user can control low power standby mode by
pulling the VSENSE pin below 0.77 V.
Low-distortion wave-shaping of the input current
using average current mode control is achieved
without input line sensing, reducing the Bill of
Materials component count. Simple external networks
allow for flexible compensation of the current and
voltage control loops. The switching frequency is
internally fixed and trimmed to better than 5%
accuracy at 25 C. Fast 1.5-A gate peak current drives
the external switch.
Numerous system-level protection features include
peak
current
open-loop
output
detection, a no-power discharge path on VCOMP,
and overload protection on ICOMP. Soft-Start limits
boost current during start-up. A trimmed internal
reference provides accurate protection thresholds
and regulation set-point. An internal clamp limits the
gate drive voltage to 12.5 V.
TYPICAL APPLICATION DIAGRAM
+
1
GND
2
ICOMP
3
ISENSE
VSENSE
4
VINS
VCOMP
UCC28019
UCC28019
SLUS755B – APRIL 2007 – REVISED DECEMBER 2007
limit,
soft
over-current
detection,
input
brown-out
over-voltage
protection/under-voltage
V
OUT
8
GATE
Auxilary
7
VCC
Supply
6
5
Copyright © 2007, Texas Instruments Incorporated
detection,
detection,
R
load

UCC28019 Summary of contents

  • Page 1

    ... Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. DESCRIPTION The UCC28019 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM). The controller is suitable for systems in the 100 W to >2 kW range over a wide-range universal ac line input ...

  • Page 2

    ... PACKAGE SOIC 8-Pin (D) ead (Pb)-Free/Green Plastic DIP 8 Pin (P) Lead (Pb)-Free/Green ( POWER RATING (W) A 160 0.65 110 1 Product Folder Link(s): UCC28019 www.ti.com OPERATING TEMPERATURE RANGE – 125 C VALUE UNIT –0 –0 –0 – – – ...

  • Page 3

    ... ICOMP = 6.4 V VSENSE = 4.95 V VSENSE = 3 V, ICOMP = 1 V ICOMP = 1 V, ISENSE = 0 V, VCOMP = 1 V VSENSE = 0.5 V ISENSE = -0.2 V VINS = 0 V Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 = T ≤ 125 C. All voltages are with respect to A MIN TYP MAX 25 100 200 1 ...

  • Page 4

    ... GATE = 20 mA GATE = -20 mA VCC = 5 V, GATE = 5 mA VCC = 5 V, GATE = 20 mA VCC = 4.7 nF GATE VCC = 4.7 nF GATE VCC = VCC + 0.2 V, OFF C = 4.7 nF GATE Product Folder Link(s): UCC28019 www.ti.com = T ≤ 125 C. All voltages are with respect to A MIN TYP MAX 0.75 0.95 1.15 50 3.7 4.0 4.3 4.90 5.00 5 ...

  • Page 5

    ... I VCC(on_load) 0.3 0.2 0 115 140 -60 Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 = All voltages are with respect J A SUPPLY CURRENT vs BIAS SUPPLY VOLTAGE VSENSE = VINS = 3V No Gate Load I Turn OFF I Turn ON VCC VCC ...

  • Page 6

    ... Product Folder Link(s): UCC28019 www.ti.com OSCILLATOR FREQUENCY vs BIAS SUPPLY VOLTAGE Switching Frequency VCC - Bias Supply Voltage - V Figure 6. VOLTAGE ERROR AMPLIFIER TRANSCONDUCTANCE vs TEMPERATURE Gain -35 - ...

  • Page 7

    ... BROWNOUT_TH -0.8 -0.9 -1.0 - 115 140 Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 VSENSE THRESHOLD vs TEMPERATURE ) OVP ) UVD -35 - 115 T - Temperature - °C J Figure 10. ISENSE THRESHOLD vs TEMPERATURE Soft Over-Current Protection (SOC) -35 -10 ...

  • Page 8

    ... Product Folder Link(s): UCC28019 www.ti.com GATE DRIVE SWITCHING vs TEMPERATURE C = 4.7 nF GATE = GATE Fall Time Rise Time -35 - 115 T - Temperature - °C J Figure 14. GATE LOW VOLTAGE WITH DEVICE OFF vs TEMPERATURE ...

  • Page 9

    ... TYPICAL CHARACTERISTICS (continued) 5.50 5.25 5.00 4.75 4.50 Copyright © 2007, Texas Instruments Incorporated REFERENCE VOLTAGE vs TEMPERATURE VCC = 15V Reference Voltage -60 -35 - Temperature - °C J Figure 17. Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 115 140 Submit Documentation Feedback 9 ...

  • Page 10

    ... GATE output when VSENSE exceeds 105% of the reference voltage. Enhanced Dynamic Response (EDR) rapidly returns the output voltage to its normal regulation level when a system line or load step causes VSENSE to fall below 95% of the reference voltage. 10 Submit Documentation Feedback DEVICE INFORMATION UCC28019 Top View (SOIC-8, PDIP-8) GND GATE ...

  • Page 11

    ... Blanking + Soft Over Current (SOC) V 0.73V SOC SOC + + S Q 1.5V IBOP 0.82V Figure 18. Block Diagram Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 D BST V OUT R FB1 R GATE C OUT R 10k FB2 VCC Gate Driver Fault GATE 8 Q ...

  • Page 12

    ... SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 UCC28019 Operation The UCC28019 is a switch-mode controller used in boost converters for power factor correction operating at a fixed frequency in continuous conduction mode. The UCC28019 requires few external components to operate as an active PFC pre-regulator. Its trimmed oscillator provides a nominal fixed switching frequency of 65 kHz, ensuring that both the fundamental and second harmonic components of the conducted-EMI noise spectrum are below the EN55022 conducted-band 150-kHz measurement limit ...

  • Page 13

    ... Power Supply The UCC28019 operates from an external bias supply recommended that the device be powered from a regulated auxiliary supply. This device is not intended to be used from a bootstrap bias supply. A bootstrap bias supply is fed from the input high voltage through a resistor with sufficient capacitance on VCC to hold up the voltage on VCC until current can be supplied from a bias winding on the boost inductor ...

  • Page 14

    ... VCOMP I = -30uA SS for VSENSE < 4.75V during Soft-Start Figure 20. Soft Start OVP (No Gate Output) Figure 21. Output Protection States Product Folder Link(s): UCC28019 www.ti.com VSENSE OVP 105% V REF 100% V REF EDR 95% V REF OLP/SS 16% V UVD Run OLP (EDR on) Copyright © ...

  • Page 15

    ... The device comes out of standby when VINS rises (low-to-high) , bias current sourced from VINS, is less than 0.1 A. With a bias current should be implemented with multiple resistors in series to reduce VINS1 Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 + S Q UVLO ...

  • Page 16

    ... F _ BRIDGE delays the brown-out protection operation for a desired number of line VINS BROWNOUT_th ù ú ú R VINS ú ú + VINS 1 VINS 2 û Product Folder Link(s): UCC28019 www.ti.com level after N number of half line cycles of Copyright © 2007, Texas Instruments Incorporated ...

  • Page 17

    ... The normal voltage control loop is bypassed and the GATE output is OVP is 420 system with a 400-V rated output. OUT(OVP) R FB1 OVERVOLTAGE VSENSE UNDERVOLTAGE R FB2 OPEN LOOP PROTECTION/ STANDBY Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 + OVP 5.25V 4.75V + UVD 0.82V + OLP/STANDBY Submit Documentation Feedback 17 ...

  • Page 18

    ... The other side of Soft Over Current (SOC) V 0.73V SOC V OUT ISENSE + -1x Peak Current Limit (PCL) Product Folder Link(s): UCC28019 www.ti.com SOC + 300ns V PCL Leading Edge PCL 1.08V Blanking + Copyright © 2007, Texas Instruments Incorporated ...

  • Page 19

    ... Soft Over Current (SOC), , limits the rise time and dampens ringing caused by parasitic GATE VCC Pre-Drive and Clamp Circuit Figure 26. Gate Driver Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 , is given as: PCL Rectified ...

  • Page 20

    ... ICOMP voltage. The OFF(min) , and hence D . Since D OFF OFF OFF . Normal duty-cycle operation can be interrupted directly by OVP and OFF(min) Product Folder Link(s): UCC28019 www.ti.com = the boost-topology equation, IN OUT Copyright © 2007, Texas Instruments Incorporated ...

  • Page 21

    ... UVLO, the normal discharge transistor on VCOMP loses drive and the large capacitor could be left with substantial voltage on it, negating the benefit of a subsequent Soft-Start. The UCC28019 incorporates a parallel discharge path which operates without VCC bias, to further discharge the compensation network after VCC is removed. ...

  • Page 22

    ... As with all PWM controllers, the effectiveness of the filter capacitors on the signal pins depends upon the integrity of the ground return. The pinout of the UCC28019 is ideally suited for separating the high di/dt induced noise on the power ground from the low current quiet signal ground required for adequate noise immunity. A star point ground connection at the GND pin of the device can be achieved with a simple cut out in the ground plane of the printed circuit board ...

  • Page 23

    ... UCC28019. The target design is a universal input, 350-W PFC designed for an ATX supply application. This design process is directly tied to the UCC28019 Design Calculator spreadsheet that can be found in the Tools section of the UCC28019 product folder on the Texas Instruments website. ...

  • Page 24

    ... OUT Ambient temperature T AMB 24 Submit Documentation Feedback TEST CONDITION = 0.45 A OUT = 0.45 A OUT = 0.9 A OUT = 60 Hz LINE = 50 Hz LINE = 60 Hz, LINE Product Folder Link(s): UCC28019 www.ti.com MIN TYP MAX UNIT 61.7 65 68.3 kHz degrees 0.99 4.13% 10% 6.67% 10% 0. Copyright © 2007, Texas Instruments Incorporated ...

  • Page 25

    ... The following procedure refers to the schematic shown in Copyright © 2007, Texas Instruments Incorporated Figure 28. Figure 28. Design Example Schematic Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 Submit Documentation Feedback 25 ...

  • Page 26

    ... Submit Documentation Feedback : OUT(max calculated using the parameters from IN_RMS(max 0.95 V across the rectifier diodes, BR1, the power loss in the F_BRIDGE Product Folder Link(s): UCC28019 www.ti.com Table 1 and the , and the maximum average IN_PEAK(max) Copyright © 2007, Texas Instruments Incorporated ...

  • Page 27

    ... Input Capacitor Note that the UCC28019 is a continuous conduction mode controller and as such the inductor ripple current should be sized accordingly. Allowing an inductor ripple current, I ripple factor 6%, the maximum input capacitor value, C RIPPLE_IN ripple current and the input voltage ripple, V ...

  • Page 28

    ... DIODE 28 Submit Documentation Feedback . can be calculated and will occur at the minimum input voltage kHz ´ 390 ´ Product Folder Link(s): UCC28019 www.ti.com : L_PEAK(max 125 C and the reverse recovery F Copyright © 2007, Texas Instruments Incorporated ...

  • Page 29

    ... DS_RMS RECTIFIED(min OUT = . and the output capacitance losses OSS OUT 780 . ´ pF ´ 390 Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 Submit Documentation Feedback 29 ...

  • Page 30

    ... Submit Documentation Feedback , is sized such that it will trigger the soft SENSE , must be calculated: Rsense threshold. For a worst case analysis, the maximum V PCL , is placed in series with the ISENSE ISENSE Product Folder Link(s): UCC28019 www.ti.com , of SOC PCL Copyright © 2007, Texas Instruments Incorporated ...

  • Page 31

    ... Cout _ RMS ( total ) Copyright © 2007, Texas Instruments Incorporated ³ 240 OUT = 270 Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 , during one line cycle, OUT_HOLDUP(min) Submit Documentation Feedback 31 ...

  • Page 32

    ... Multiple resistors in series are used due to the maximum FB1 REF R ö ÷ 2 ø W ö 410 7 ÷ ø R ö ÷ 2 ø W ö 371 6 ÷ ø Product Folder Link(s): UCC28019 www.ti.com , select the bottom divider resistor, R Copyright © 2007, Texas Instruments Incorporated , to FB2 ...

  • Page 33

    ... The selection of compensation components, for both the current loop and the voltage loop, is made easier by using the UCC28019 Design Calculator spreadsheet that can be found in the Tools section of the UCC28019 product folder on the Texas Instruments website. The current loop is compensated first by determining the ...

  • Page 34

    ... V then : 056 = VCOMP = 1223 ´ 764 Submit Documentation Feedback . . Product Folder Link(s): UCC28019 www.ti.com which is the voltage loop PWM ramp 2 Copyright © 2007, Texas Instruments Incorporated ...

  • Page 35

    ... Copyright © 2007, Texas Instruments Incorporated VCOMP . 0 1543 ´ 1167 0 3596 . ´ VCOMP + 0 3085 . . . = , is chosen 9.5 kHz. The required capacitor on ICOMP, IAVG pF Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 M factor determined above Submit Documentation Feedback 35 ...

  • Page 36

    ... Figure 30. Bode Plot of the Current Averaging Circuit. 36 Submit Documentation Feedback ICOMP + gmiM 1 CURRENT AVERAGING CIRCUIT Phase Gain 3 4 100 1*10 1*10 1* Product Folder Link(s): UCC28019 www.ti.com -80 -100 -120 -140 -160 -180 5 6 1*10 Copyright © 2007, Texas Instruments Incorporated ...

  • Page 37

    ... The plotted result is shown in PWM_PS Copyright © 2007, Texas Instruments Incorporated SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 (f) contains the product of the voltage feedback gain which includes the pulse width modulator PWM_PS Figure 31. Product Folder Link(s): UCC28019 UCC28019 , and FB Submit Documentation Feedback 37 ...

  • Page 38

    ... Figure 31. Bode Plot of the Open Loop Voltage Transfer Function 38 Submit Documentation Feedback . 589 ´ 270 ´ ´ 115 s m OPEN LOOP VOLTAGE TRANSFER FUNCTION Phase 0 100 Product Folder Link(s): UCC28019 www.ti.com 0 -20 Gain -40 -60 -80 -100 3 4 1*10 1*10 Copyright © 2007, Texas Instruments Incorporated ...

  • Page 39

    ... 258 . Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 pole and a pole placed at 20 PWM_PS POLE , is desired V ù ú ú ú C ù ö VCOMP _ P ú ú ÷ C ú ÷ ...

  • Page 40

    ... Submit Documentation Feedback , contains the combined stages and is plotted in VL_total EA ) CLOSED LOOP VOLTAGE TRANSFER FUNCTION Phase 0 100 Figure 32. Closed Loop Voltage Bode Plot Product Folder Link(s): UCC28019 www.ti.com Figure 32. 100 80 60 Gain 1*10 1*10 Copyright © 2007, Texas Instruments Incorporated ...

  • Page 41

    ... MΩ not contribute excessive noise, and still , and turn on when the input rises above V AC(off) VINS - ENABLE _ th(max ´ R VINS BRIDGE = 100 k W Product Folder Link(s): UCC28019 UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 . AC(on) Submit Documentation Feedback 41 ...

  • Page 42

    ... ú è ø û VINS 1 VINS ù ú ú 100 k W æ ö ú ÷ ú 100 W è ø û Product Folder Link(s): UCC28019 www.ti.com Copyright © 2007, Texas Instruments Incorporated ...

  • Page 43

    ... Technical Documents. Evaluation Module, 350-W Universal Input, 390-V SLUA272 Design Spreadsheet, UCC28019 Design Calculator, Texas Instruments RELATED PRODUCTS The following parts have characteristics similar to the UCC28019 and may be of interest. DEVICE UCC3817/18 UC2853A Copyright © 2007, Texas Instruments Incorporated SLUS755B – ...

  • Page 44

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing UCC28019DR SOIC D PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 8 2500 330.0 12.4 6.4 Pack Materials-Page 1 19-Mar-2008 B0 (mm) K0 (mm Pin1 (mm) (mm) Quadrant 5.2 2.1 8.0 12.0 Q1 ...

  • Page 45

    ... Device Package Type UCC28019DR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 Pack Materials-Page 2 19-Mar-2008 Width (mm) Height (mm) 340.5 338.1 20.6 ...

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    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...