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UCC28019ADR;UCC28019AD;UCC28019AP;中文规格书,Datasheet资料

FEATURES DESCRIPTION APPLICATIONS

Typical Application Diagram

R load

UCC28019A

https://www.sodocs.net/doc/af11927953.html,..................................................................................................................................................SLUS828B–DECEMBER2008–REVISED APRIL2009 8-Pin Continuous Conduction Mode(CCM)PFC Controller

?8-pin Solution Reduces External Components The UCC28019A8-pin active Power Factor

Correction(PFC)controller uses the boost topology ?Wide-Range Universal AC Input Voltage

operating in Continuous Conduction Mode(CCM).?Fixed65-kHz Operating Frequency

The controller is suitable for systems in the100W to ?Maximum Duty Cycle of98%(typ.)2kW range over a wide-range universal ac line input.?Output Over/Under-Voltage Protection Start-up current during under-voltage lockout is less

than200μA.The user can control low power standby ?Input Brown-Out Protection

mode by pulling the VSENSE pin below0.77V.?Cycle-by-Cycle Peak Current Limiting

Low-distortion wave shaping of the input current ?Open Loop Detection

using average current mode control is achieved ?Low-Power User Controlled Standby Mode without input line sensing,reducing the external

component count.Simple external networks allow for

flexible compensation of the current and voltage

control loops.The switching frequency is internally ?CCM Boost Power Factor Correction Power

fixed and trimmed to better than5%accuracy at Converters in the100W to2kW Range

25°C.Fast 1.5-A peak gate current drives the ?Digital TV

external switch.

?Home Electronics

Numerous system-level protection features include ?White Goods and Industrial Electronics

peak current limit,soft over-current,open-loop ?Server and Desktop Power Supplies

detection,input brown-out,and output

over/under-voltage.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 to12.5V.

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.Copyright?2008–2009,Texas Instruments Incorporated Products conform to specifications per the terms of the Texas

Instruments standard warranty.Production processing does not

necessarily include testing of all parameters.

ABSOLUTE MAXIMUM RATINGS (1)

DISSIPATION RATINGS (1)

RECOMMENDED OPERATING CONDITIONS

ELECTROSTATIC DISCHARGE (ESD)PROTECTION

UCC28019A

SLUS828B–DECEMBER 2008–REVISED APRIL https://www.sodocs.net/doc/af11927953.html,

These devices have limited built-in ESD protection.The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

ORDERING INFORMATION

PART NUMBER PACKAGE

OPERATING TEMPERATURE RANGE,T A

UCC28019ADG4SOIC 8-Pin (D)Lead (Pb)-Free/Green (1)-40°C to 125°C

UCC28019APG4

Plastic DIP 8-Pin (P)Lead (Pb)-Free/Green

(1)

SOIC (D)package is available taped and reeled by adding “R”to the above part number.Reeled quantities are 2,500devices per reel.

Over operating free-air temperature range unless otherwise noted.Unless noted,all voltages are with respect to GND.Currents are positive into and negative out of the specified terminal.

PARAMETER VALUE

UNIT

VCC,GATE

-0.3to 22Input voltage range VINS,VSENSE,VCOMP,ICOMP -0.3to 7V ISENSE

-24to 7Input current range VSENSE,ISENSE -1to 1mA Operating -55to 150Junction temperature,T J Storage -65to 150

°C Lead temperature,T SOL Soldering,10s

300

(1)

Stresses beyond those listed under “absolute maximum ratings”may cause permanent damage to the device.These are stress ratings only and functional operation of the device at these or any other condition beyond those included under “recommended operating conditions”is not implied.Exposure to absolute-maximum-rated conditions for extended periods of time may affect device reliability.

THERMAL IMPEDANCE,T A =25°C,

T A =85°C,

PACKAGE JUNCTION TO AMBIENT (°C/W)

POWER RATING (W)

POWER RATING (W)

SOIC-8(D)1600.650.25PDIP-8(P)

110

1

0.36

(1)

Tested per JEDEC EIA/JESD 51-1.Thermal resistance is a strong function of board construction and layout.Air flow will reduce thermal resistance.This number is only a general guide.See TI document SPRA953IC Thermal Metrics.

over operating free-air temperature range (unless otherwise noted)

PARAMETER

MIN MAX

UNIT VCC input voltage from a low-impedance source VCC OFF +1V

21V Operating junction temperature,T J

-40

125

°C

PARAMETER

RATING

UNIT Human Body Model (HBM)2kV Charged Device Model (CDM)

500

V

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ELECTRICAL CHARACTERISTICS UCC28019A

https://www.sodocs.net/doc/af11927953.html,..................................................................................................................................................SLUS828B–DECEMBER2008–REVISED APRIL2009 Unless otherwise noted,VCC=15V DC,0.1μF from VCC to GND,-40°C≤T J=T A≤125°C.All voltages are with respect to

GND.Currents are positive into and negative out of the specified terminal.

PARAMETER TEST CONDITION MIN TYP MAX UNITS VCC Bias Supply

ICC PRESTART ICC pre-start current VCC=VCC ON–0.1V25100200μA ICC STBY ICC standby current VSENSE=0.5V1 2.2 2.9

mA ICC ON_load ICC operating current VSENSE=4.5V,C GATE=4.7nF47.510

Under Voltage Lockout(UVLO)

VCC ON VCC turn on threshold1010.511

VCC OFF VCC turn off threshold99.510V UVLO hysteresis0.81 1.2

Oscillator

T A=25°C61.76568.3

f SW Switchin

g frequency-25°C≤T A≤125°C596571kHz

-40°C≤T A≤125°C5771

PWM

VCOMP=0V,VSENSE=5V,

D MIN Minimum duty cycle0%

ICOMP=6.4V

D MAX Maximum duty cycle VSENSE=4.95V94%98%99.3%

t OFF(min)Minimum off time VSENSE=3V,ICOMP=1V100250600ns System Protection

ISENSE threshold,Soft Over Current

V SOC-0.66-0.73-0.79 (SOC)

V ISENSE threshold,Peak Current Limit

V PCL-1-1.08-1.15 (PCL)

ISENSE bias current,ISENSE Open-Pin

I ISOP ISENSE=0V-2.1-4.0μA

Protection(ISOP)

ISENSE threshold,ISENSE Open-Pin

V ISOP ISENSE=open pin0.082

Protection(ISOP)

V VSENSE threshold,Open Loop ICOMP=1V,ISENSE=-0.1V,

V OLP0.770.820.86 Protection(OLP)VCOMP=1V

Open Loop Protection(OLP)Internal

VSENSE=0.5V100250nA pull-down current

VSENSE threshold,output

V UVD 4.63 4.75 4.87 Under-Voltage Detection(UVD)(1)

VSENSE threshold,output Over-Voltage

V OVP ISENSE=-0.1V 5.12 5.25 5.38 Protection(OVP)

V

V INSBROWNOUT Input Brown-Out Detection(IBOP)

0.760.820.88

_th

high-to-low threshold

Input Brown-Out Detection(IBOP)

V INSENABLE_th 1.4 1.5 1.6 low-to-high threshold

I VINS_0V VINS bias current VINS=0V0±0.1μA

ICOMP threshold,external overload

0.6V

protection

(1)Not production tested.Characterized by design.

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UCC28019A

SLUS828B–DECEMBER2008–REVISED https://www.sodocs.net/doc/af11927953.html,

ELECTRICAL CHARACTERISTICS(continued)

Unless otherwise noted,VCC=15V DC,0.1μF from VCC to GND,-40°C≤T J=T A≤125°C.All voltages are with respect to GND.Currents are positive into and negative out of the specified terminal.

PARAMETER TEST CONDITION MIN TYP MAX UNITS Current Loop

g mi Transconductance gain T A=25°C0.750.95 1.15mS

Output linear range(2)±50μA

ICOMP voltage during OLP VSENSE=0.5V 3.74 4.3V Voltage Loop

V REF Reference voltage-40°C≤T A≤125°C 4.95 5.1V

g mv Transconductance gain without EDR-31.5-42-52.5

μS

g mv-EDR Transconductance gain under EDR VSENSE=4.65V-440

Maximum sink current under normal

VSENSE=6V,VCOMP=4V213038 operation

Source current under soft start VSENSE=4V,VCOMP=2.5V-21-30-38μA

VSENSE=4V,VCOMP=2.5V-300

Maximum source current under EDR

operation VSENSE=4V,VCOMP=4V-170

Enhanced dynamic response VSENSE

4.63 4.75 4.87V

low threshold,falling(2)

VSENSE input bias current VSENSE=5V20100250nA

VCOMP voltage during OLP VSENSE=0.5V,I VCOMP=0.5mA00.20.4V

VCOMP rapid discharge current VCOMP=3V,VCC=0V0.77mA

V PRECHARGE VCOMP precharge voltage I VCOMP=-100μA,VSENSE=5V 1.76V

I PRECHARGE VCOMP precharge current VCOMP=1.0V-1mA

VSENSE threshold,end of soft start Initial start up 4.95V GATE Driver

GATE current,peak,sinking(2)C GATE=4.7nF2

A GATE current,peak,sourcing(2)C GATE=4.7nF-1.5

GATE rise time C GATE=4.7nF,GATE=2V to8V84060

ns GATE fall time C GATE=4.7nF,GATE=8V to2V82540

GATE low voltage,no load I GATE=0A00.05

GATE low voltage,sinking I GATE=20mA0.30.8

GATE low voltage,sourcing I GATE=-20mA-0.3-0.8

VCC=5V,I GATE=5mA0.20.75 1.2 GATE low voltage,sinking,device OFF

V

VCC=5V,I GATE=20mA0.20.9 1.5

VCC=20V,C GATE=4.7nF11.012.514.0

VCC=11V,C GATE=4.7nF9.510.511.0 GATE high voltage

VCC=VCC OFF+0.2V,C GATE=

8.09.410.2

4.7nF

(2)Not production tested.Characterized by design.

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DEVICE INFORMATION

UCC28019A

https://www.sodocs.net/doc/af11927953.html,..................................................................................................................................................SLUS828B–DECEMBER2008–REVISED APRIL2009

SOIC PDIP Top View

TERMINAL FUNCTIONS

NAME PIN#I/O FUNCTION

Gate drive:Integrated push-pull gate driver for one or more external power MOSFETs.Typical2.0-A GATE8O

sink and1.5-A source capability.Output voltage is typically clamped at12.5V.

GND1Ground:device ground reference.

Current loop compensation:Transconductance current amplifier output.A capacitor connected to ICOMP2O GND provides compensation and averaging of the current sense signal in the current control loop.

The controller is disabled if the voltage on ICOMP is less than0.6V.

Inductor current sense:Input for the voltage across the external current sense resistor,which

represents the instantaneous current through the PFC boost inductor.This voltage is averaged by the

current amplifier to eliminate the effects of ripple and noise.Soft Over Current(SOC)limits the ISENSE3I average inductor current.Cycle-by-cycle Peak Current Limit(PCL)immediately shuts off the GATE

drive if the peak-limit voltage is exceeded.An internal1.5-μA current source pulls ISENSE above0.1

V to shut down PFC operation if this pin becomes https://www.sodocs.net/doc/af11927953.html,e a220-?resistor between this

pin and the current sense resistor to limit inrush-surge currents into this pin.

Device supply:External bias supply input.Under-Voltage Lockout(UVLO)disables the controller until

VCC exceeds a turn-on threshold of10.5V.Operation continues until VCC falls below the turn-off VCC7

(UVLO)threshold of9.5V.A ceramic by-pass capacitor of0.1μF minimum value must be connected

from VCC to GND as close to the device as possible for high frequency filtering of the VCC voltage.

Voltage loop compensation:Transconductance voltage error amplifier output.A resistor-capacitor

network connected from this pin to GND provides compensation.VCOMP is held at GND until VCC,

VINS,and VSENSE all exceed their threshold voltages.Once these conditions are satisfied,VCOMP VCOMP5O is charged until the VSENSE voltage reaches99%of its nominal regulation level.When Enhanced

Dynamic Response(EDR)is engaged,a higher transconductance is applied to VCOMP to reduce the

charge time for faster transient response.Soft Start is programmed by the capacitance on this pin.

The EDR higher transconductance is inhibited during Soft Start.

Input ac voltage sense:A filtered resistor-divider network connects from this pin to the rectified-mains

node.Input Brown-Out Protection(IBOP)detects when the system ac-input voltage is above a

user-defined normal operating level,or below a user-defined“brown-out”level.At startup the VINS4I controller is disabled until the VINS voltage exceeds a threshold of1.5V,initiating a soft start.The

controller is also disabled if VINS drops below the brown-out threshold of0.8V.Operation will not

resume until both VINS and VSENSE voltages exceed their enable thresholds,initiating another soft

start.

Output voltage sense:An external resistor-divider network connected from this pin to the PFC output

voltage provides feedback sensing for regulation to the internal5-V reference voltage.A small

capacitor from this pin to GND filters high-frequency noise.Standby mode disables the controller and

discharges VCOMP when the voltage at VSENSE drops below the enable threshold of0.8V.An VSENSE6I internal100-nA current source pulls VSENSE to GND for Open-Loop Protection(OLP),including pin

disconnection.Output Over-Voltage Protection(OVP)disables the GATE output when VSENSE

exceeds105%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

below95%of the reference voltage.

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R C ISENSEfilter

UCC28019A

SLUS828B–DECEMBER 2008–REVISED APRIL https://www.sodocs.net/doc/af11927953.html,

Block Diagram

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TYPICAL CHARACTERISTICS

0515VCC -Bias Supply Voltage -V

0.51.52.53.04.01020

1.02.03.5

SUPPLY CURRENT

vs

BIAS SUPPLY VOLTAGE

I C C -S u p p l y C u r r e n t -m A

-60

-35

-10

65

115

140

T J -Temperature -°C

8.0

9.011.0

12.0

15

40

90

10.0

V C C (o n )/V C C (o f f )-U V L O T h r e s h o l d -V

UVLO THRESHOLDS

vs

TEMPERATURE

T J -Temperature -°C

24681013579I C C -S u p p l y C u r r e n t -m A

SUPPLY CURRENT

vs

TEMPERATURE

-60

-35

-1065

115

140

15

40

90

T J -Temperature -°C

0.1

0.20.3

0.4

0.5

I C C (s t a r t )-S u p p l y C u r r e n t -m A

SUPPLY CURRENT

vs

TEMPERATURE

-60

-35

-10

65115

140

154090UCC28019A

https://www.sodocs.net/doc/af11927953.html, ..................................................................................................................................................SLUS828B–DECEMBER 2008–REVISED APRIL 2009

Unless otherwise noted,VCC =15V DC ,0.1μF from VCC to GND,-40°C ≤T J =T A ≤125°C.All voltages are with respect to

GND.Currents are positive into and negative out of the specified terminal.

Figure 1.Figure 2.

Figure 3.Figure 4.

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Product Folder Link(s):UCC28019A

T J -Temperature -°C

55

5963677175f S W -S w i t c h i n g F r e q u e n c y -k H z

OSCILLATOR FREQUENCY

vs

TEMPERATURE

5761656973-60

-35

-10

65

115

140

15

40

90

1016VCC -Bias Supply Voltage -V

55

5963677175

f S W -S w i t c h i n

g F r e q u e n c y -k H z

OSCILLATOR FREQUENCY

vs

BIAS SUPPLY VOLTAGE

576165697320

181412T J -Temperature -°C

0.40.81.21.62.0g m i -G a i n -m A /V

CURRENT AVERAGING

AMPLIFIER TRANSCONDUCTANCE

vs

TEMPERATURE

0.20.61.01.41.8-60

-35-1065115140

154090T J -Temperature -°C

30

3438424650

g m v -G a i n -μA /V

VOLTAGE ERROR AMPLIFIER

TRANSCONDUCTANCE

vs

TEMPERATURE

32

364044

48-60-35-1065115140

154090UCC28019A

SLUS828B–DECEMBER 2008–REVISED APRIL https://www.sodocs.net/doc/af11927953.html,

TYPICAL CHARACTERISTICS (continued)

Unless otherwise noted,VCC =15V DC ,0.1μF from VCC to GND,-40°C ≤T J =T A ≤125°C.All voltages are with respect to GND.Currents are positive into and negative out of the specified terminal.

Figure 5.Figure 6.

Figure 7.Figure 8.

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T J -Temperature -°C

V S O C -I S E N S E T h r e s h o l d -V

ISENSE THRESHOLD

vs

TEMPERATURE

-60

-35

-10

65115

140

1540900-0.2

-0.4-0.6-0.8-1.0

-0.1-0.3-0.5-0.7-0.9

T J -Temperature -°C

4.50

4.75

5.00

5.25

5.50

V R E F -R e f e r e n c e V o

l t a g e -V

REFERENCE VOLTAGE

vs

TEMPERATURE

-60

-35

-10

65115

140

154090T J -Temperature -°C

4.50

5.25

5.50

V O V P /V U V D -V S E N S E T h r e s h o l d -V

VSENSE THRESHOLD

vs

TEMPERATURE

4.75

5.00

-60

-35

-10

65115

140

154090T J -Temperature -°C

0.40.81.21.62.0V O L P –V S E N S E T h r e s h o l d -V

VSENSE THRESHOLD

vs

TEMPERATURE

0.2

0.61.01.41.8-60

-35

-10

65115

140

154090UCC28019A

https://www.sodocs.net/doc/af11927953.html, ..................................................................................................................................................SLUS828B–DECEMBER 2008–REVISED APRIL 2009

TYPICAL CHARACTERISTICS (continued)

Unless otherwise noted,VCC =15V DC ,0.1μF from VCC to GND,-40°C ≤T J =T A ≤125°C.All voltages are with respect to GND.Currents are positive into and negative out of the specified terminal.

Figure 9.Figure 10.

Figure 11.Figure 12.

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T J -Temperature -°C

0.40.81.21.62.0V I N S E N A B L E _T H /V I N S B R O U W N O U T _T H –V I N S T h r e s h o l d -V

VINS THRESHOLD

vs

TEMPERATURE

0.20.61.01.41.8-60

-35

-10

65115

140

154090

T J -Temperature -°C

100

200300400500600

t -T i m e -

n s

MINIMUM OFF TIME

vs

TEMPERATURE

105250350450550-60

-35-1065115140

154090T J -Temperature -°C 0

1020304050t -T i m e -n s

GATE DRIVE SWITCHING

vs

TEMPERATURE

515253545-60

-35

-10

65

115

140

15

40

90

10

12

16

20

VCC -Bias Supply Voltage -V

1020

304050

18

t -T i m e -n s

GATE DRIVE SWITCHING

vs

BIAS SUPPLY VOLTAGE

51525354514

UCC28019A

SLUS828B–DECEMBER 2008–REVISED APRIL https://www.sodocs.net/doc/af11927953.html,

TYPICAL CHARACTERISTICS (continued)

Unless otherwise noted,VCC =15V DC ,0.1μF from VCC to GND,-40°C ≤T J =T A ≤125°C.All voltages are with respect to GND.Currents are positive into and negative out of the specified terminal.

Figure 13.Figure 14.

Figure 15.Figure 16.

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分销商库存信息:

TI

UCC28019ADR UCC28019AD UCC28019AP

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