SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
1
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DControls Boost Preregulator to Near-Unity
Power Factor
DWorld Wide Line Operation
DOver-Voltage Protection
DAccurate Power Limiting
DAverage Current Mode Control
DImproved Noise Immunity
DImproved Feed-Forward Line Regulation
DLeading Edge Modulation
D150-µA Typical Start-Up Current
DLow-Power BiCMOS Operation
D10.8-V to 17-V Operation
DProgrammable Output Voltage (Tracking
Boost Topology)
description
The UCC2819/UCC3819 provides all the functions necessary for active power factor corrected preregulators.
The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond
to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line
current.
Designed in Texas Instrument’s BiCMOS process, the UCC3819 offers new features such as lower start-up
current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge
modulation technique to reduce ripple current in the bulk capacitor.
The UCC3819 allows the output voltage to be programmed by bringing out the error amplifier noninverting input.
Available in the 16-pin D, DW, N, and PW packages.
block diagram
UDG-01009
VREF9
2
16
1
15
10
5
4
DRVOUT
GND
CAI
VCC
OVP/EN
VAOUT 1.9 V
PKLMT
7.5 V
REFERENCE
UVLO
10.2 V/9.7 V
VCC
3
OSCILLATOR
12
RT 14
CT
SQ
R
PWM
LATCH
+
−PWM
CAOUT
+
−
+
−
+
−
VOLTAGE
ERROR AMP 8.0 V
7
11VSENSE
VFF 8
IAC 6
MOUT
MIRROR
2:1
X2
+
−
ENABLE
OVP
÷
X
XMULT
OSC
CLK
CLK
CURRENT
AMP
+
−
0.33 V ZERO POWER
R
+
−
13VAI
Copyright 2004, Texas Instruments Incorporated
! " #$%! " &$'(#! )!%*
)$#!" # ! "&%##!" &% !+% !%" %," "!$%!"
"!)) -!.* )$#! &#%""/ )%" ! %#%""(. #($)%
!%"!/ (( &%!%"*
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.
D, DW, N, and PW PACKAGES
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
PKLMT
CAOUT
CAI
MOUT
IAC
VAOUT
VFF
DRVOUT
VCC
CT
VAI
RT
VSENSE
OVP/EN
VREF
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
2www.ti.com
absolute maximum ratings over operating free-air temperature (unless otherwise noted)†
Supply voltage, VCC 18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate drive current, continuous 0.2 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate drive current 1.2 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, CAI, MOUT 8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, PKLMT 5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VSENSE, OVP/EN, VAI 10 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input current, RT, IAC, PKLMT 10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum negative voltage, DRVOUT, PKLMT, MOUT −0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation 1 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†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 conditions beyond those indicated under recommended operating conditions is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
AVAILABLE OPTIONS
TJ
PACKAGE DEVICES
T
JD PACKAGE DW PACKAGE N PACKAGE PW PACKAGE
0°C to 70°C UCC3819D UCC3819DW UCC3819N UCC3819PW
−40°C to 85°C UCC2819D UCC2819DW UCC2819N UCC2819PW
†The D, DW, and PW packages are available taped and reeled. Add TR suffix to device type (e.g. UCC3819DTR) to
order quantities of 2500 devices per reel.
electrical characteristics, TA = 0°C to 70°C for the UCC3819, −40°C to 85°C for the UCC2819, VCC = 12 V,
RT = 22 kΩ, CT = 270 pF, (unless otherwise noted)
supply current
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Supply current, off VCC = (VCC turnon threshold −0.3 V) 150 300 µA
Supply current, on VCC = 12 V, No load on DRVOUT 2 4 6 mA
UVLO
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
VCC turnon threshold 9.7 10.2 10.8 V
VCC turnoff threshold 9.4 9.7 V
UVLO hysteresis 0.3 0.5 V
voltage amplifier
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
VIO VAOUT = 2.75 V, VCM = 3.75 V −15 15 mV
VAI bias current VAOUT = 2.75 V, VCM = 3.75 V 50 200 nA
VSENSE bias current VSENSE = VREF, VAOUT = 2.5 V 50 200 nA
CMRR VCM = 1 V to 7.5 V 50 70 dB
Open loop gain VAOUT = 2 V to 5 V 50 90 dB
High-level output voltage IL = −150 µA 5.3 5.5 5.6 V
Low-level output voltage IL = 150 µA 0 50 150 mV
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
3
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electrical characteristics, TA = 0°C to 70°C for the UCC3819, −40°C to 85°C for the UCC2819, VCC = 12 V,
RT = 22 kΩ, CT = 270 pF, (unless otherwise noted)
over voltage protection and enable
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Over voltage reference VREF
+0.48 VREF
+0.50 VREF
+0.52 V
Hysteresis 300 500 600 mV
Enable threshold 1.7 1.9 2.1 V
Enable hysteresis 0.1 0.2 0.3 V
current amplifier
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input offset voltage VCM = 0 V, VCAOUT = 3 V −3.5 0 2.5 mV
Input bias current VCM = 0 V, VCAOUT = 3 V −50 −100 nA
Input offset current VCM = 0 V, VCAOUT = 3 V 25 100 nA
Open loop gain VCM = 0 V, VCAOUT = 2 V to 5 V 90 dB
Common-mode rejection ratio VCM = 0 V to 1.5 V, VCAOUT = 3 V 60 80 dB
High-level output voltage IL = −120 µA 5.6 6.5 6.8 V
Low-level output voltage IL = 1 mA 0.1 0.2 0.5 V
Gain bandwidth product See Note 1 2.5 MHz
voltage reference
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input voltage, (UCC3819) TA = 0°C to 70°C 7.387 7.5 7.613 V
Input voltage, (UCC2819) TA = −40°C to 85°C 7.369 7.5 7.631 V
Load regulation IREF = 1 mA to 2 mA 0 10 mV
Line regulation VCC = 10.8 V to 15 V, See Note 2 0 10 mV
Short-circuit current VREF = 0 V −20 −25 −50 mA
oscillator
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Initial accuracy TA = 25°C 85 100 115 kHz
Voltage stability VCC = 10.8 V to 15 V −1 1 %
Total variation Line, temp, See Note 1 80 120 kHz
Ramp peak voltage 4.5 5 5.5 V
Ramp amplitude voltage
(peak to peak) 3.5 4 4.5 V
NOTES: 1. Ensured by design, Not production tested.
2. Reference variation for VCC < 10.8 V is shown in Figure 2.
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
4www.ti.com
electrical characteristics, TA = 0°C to 70°C for the UCC3819, −40°C to 85°C for the UCC2819, VCC = 12 V,
RT = 22 kΩ, CT = 270 pF, (unless otherwise noted)
peak current limit
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
PKLMT reference voltage −15 15 mV
PKLMT propagation delay 150 350 500 ns
multiplier
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
IMOUT, high line, low power output
current, (0°C to 85°C) IAC = 500 µA, VFF = 4.7 V, VAOUT = 1.25 V 0 −6 −20 µA
IMOUT, high line, low power output
current, (−40°C to 85°C) IAC = 500 µA, VFF = 4.7 V, VAOUT = 1.25 V 0 −23 µA
IMOUT, high line, high power output
current IAC = 500 µA, VFF = 4.7 V, VAOUT = 5 V −70 −90 −105 µA
IMOUT, low line, low power output
current IAC = 150 µA, VFF = 1.4 V, VAOUT = 1.25 V −10 −19 −50 µA
IMOUT, low line, high power output
current IAC = 150 µA, VFF = 1.4 V, VAOUT = 5 V −268 −300 −346 µA
IMOUT, IAC limited IAC = 150 µA, VFF = 1.3 V, VAOUT = 5 V −250 −300 −400 µA
Gain constant (K) IAC = 300 µA, VFF = 3 V, VAOUT = 2.5 V 0.5 1 1.5 1/V
IMOUT, zero current
IAC = 150 µA, VFF = 1.4 V, VAOUT = 0.25 V 0 −2 µA
IMOUT, zero current IAC = 500 µA, VFF = 4.7 V, VAOUT = 0.25 V 0 −2 µA
IMOUT, zero current, (0°C to 85°C) IAC = 500 µA, VFF = 4.7 V, VAOUT = 0.5 V 0 −3 µA
IMOUT, zero current, (−40°C to 85°C) IAC = 500 µA, VFF = 4.7 V, VAOUT = 0.5 V 0 −3.5 µA
Power limit (IMOUT x VFF) IAC = 150 µA, VFF = 1.4 V, VAOUT = 5 V −375 −420 −485 µW
feed-forward
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
VFF output current IAC = 300 µA −140 −150 −160 µA
gate driver
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Pullup resistance IO = –100 mA to −200 mA 5 12 Ω
Pulldown resistance IO = 100 mA 2 10 Ω
Output rise time CL = 1 nF, RL = 10 Ω, VDRVOUT = 0.7 V to 9 V 25 50 ns
Output fall time CL = 1 nF, RL = 10 Ω, VDRVOUT = 9 V to 0.7 V 10 50 ns
Maximum duty cycle 93 95 100 %
Minimum controlled duty cycle At 100 kHz 2 %
zero power
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Zero power comparator threshold Measured on VAOUT 0.20 0.33 0.50 V
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
5
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pin descriptions
CAI: (current amplifier noninverting input) Place a resistor between this pin and the GND side of current-sense
resistor. This input and the inverting input (MOUT) remain functional down to and below GND.
CAOUT: (current amplifier output) This is the output of a wide bandwidth operational amplifier that senses line
current and commands the PFC pulse-width modulator (PWM) to force the correct duty cycle. Compensation
components are placed between CAOUT and MOUT.
CT: (oscillator timing capacitor) A capacitor from CT to GND sets the PWM oscillator frequency according to:
f[ǒ0.6
RT CTǓ
The lead from the oscillator timing capacitor to GND should be as short and direct as possible.
DRVOUT: (gate drive) The output drive for the boost switch is a totem-pole MOSFET gate driver on DRVOUT.
Use a series gate resistor to prevent interaction between the gate impedance and the output driver that might
cause the DRVOUT to overshoot excessively. See characteristic curve (Figure 13) to determine minimum
required gate resister value. Some overshoot of the DRVOUT output is always expected when driving a
capacitive load.
GND: (ground) All voltages measured with respect to ground. VCC and REF should be bypassed directly to
GND with a 0.1-µF or larger ceramic capacitor.
IAC: (current proportional to input voltage) This input to the analog multiplier is a current proportional to
instantaneous line voltage. The multiplier is tailored for very low distortion from this current input (IIAC) to
multiplier output. The recommended maximum IIAC is 500 µA.
MOUT: (multiplier output and current amplifier inverting input) The output of the analog multiplier and the
inverting input of the current amplifier are connected together at MOUT. As the multiplier output is a current, this
is a high-impedance input so the amplifier can be configured as a differential amplifier. This configuration
improves noise immunity and allows for the leading-edge modulation operation. The multiplier output current
is limited to ǒ2 IIACǓ. The multiplier output current is given by the equation:
IMOUT +IIAC (VVAOUT *1)
VVFF2 K
where K +1
V is the multiplier gain constant.
OVP/EN: (over-voltage/enable) A window comparator input that disables the output driver if the boost output
voltage is a programmed level above the nominal or disables both the PFC output driver and resets SS if pulled
below 1.9 V (typ).
PKLMT: (PFC peak current limit) The threshold for peak limit is 0 V. Use a resistor divider from the negative side
of the current sense resistor to VREF to level shift this signal to a voltage level defined by the value of the sense
resistor and the peak current limit. Peak current limit is reached when PKLMT voltage falls below 0 V.
RT: (oscillator charging current) A resistor from RT to GND is used to program oscillator charging current. A
resistor between 10 kΩ and 100 kΩ is recommended. Nominal voltage on this pin is 3 V.
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
6www.ti.com
pin descriptions (continued)
VAI: (voltage amplifier non-inverting input) This input can be tied to the VREF or any other voltage reference
(≤7.5 V) to set the boost regulator output voltage.
VAOUT: (voltage amplifier output) This is the output of the operational amplifier that regulates output voltage.
The voltage amplifier output is internally limited to approximately 5.5 V to prevent overshoot.
VCC: (positive supply voltage) Connect to a stable source of at least 20 mA between 10 V and 17 V for normal
operation. Bypass VCC directly to GND to absorb supply current spikes required to charge external MOSFET
gate capacitances. To prevent inadequate gate drive signals, the output devices are inhibited unless VVCC
exceeds the upper under-voltage lockout voltage threshold and remains above the lower threshold.
VFF: (feed-forward voltage) The RMS voltage signal generated at this pin by mirroring 1/2 of the IIAC into a single
pole external filter. At low line, the VFF roll should be 14 V.
VSENSE: (voltage amplifier inverting input) This is normally connected to a compensation network and to the
boost converter output through a divider network.
VREF: (voltage reference output) VREF is the output of an accurate 7.5-V voltage reference. This output is
capable of delivering 20 mA to peripheral circuitry and is internally short-circuit current limited. VREF is disabled
and remains at 0 V when VVCC is below the UVLO threshold. Bypass VREF to GND with a 0.1-µF or larger
ceramic capacitor for best stability. Please refer to Figures 8 and 9 for VREF line and load regulation
characteristics.
APPLICATION INFORMATION
The UCC3819 is based on the UCC3818 PFC preregulator. For a more detailed application information for this
part, please refer to the UCC3818 datasheet product folder.
The main difference between the UCC3818 and the UCC3819 is that the non-inverting input of the voltage error
amplifier is made available to the user through an external pin (VAI) in the UCC3819. The SS pin and function
were eliminated to accommodate this change.
The benefit of VAI pin is that it can be used to dynamically change the PFC output voltage based on the line
voltage (RMS) level or other conditions. Figure 1 shows one suggested implementation of the tracking boost
PFC converter as this approach is sometimes referred to. The VAI pin is tied to the VFF pin and hence output
voltage scales up with the line voltage. The benefit of this approach is that at lower line voltages the output
voltage is lower and that leads to smaller boost inductor value, lower MOSFET conduction losses and reduced
component stresses. In order for this feature to work, the downstream converter has to operate over a wider
input range.
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
7
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APPLICATION INFORMATION
UDG−01008
1
11
7
16GND DRVOUT
R17
15
C3
C2
14
C1
13 C4
12 R1
R3 R2
R4
R5C5
9
4
10
VREF
VCC
CT
VAI
RT
VSENSE
OVP/EN
VREF
VAOUT
3
8
2
VFF
C6
C7
R7
6
5
R9
C8
R8
D6
R10
D5
R11
R12
R14
C13C14
R13
IAC
D2
D1
C12 VOUT
+
−
PKLIMIT
CAOUT
CAI
MOUT
IAC
VO
UCC3819
VLINE
VREF C9
R6
D3 Q1
F1
VO
D4
R19
R20
R21
AC2
AC1
C15
VFF
VCC (FROM BIAS SUPPLY)
Figure 1. Suggested Implementation of UCC3819 in a Tracking Boost PFC Preregulator
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
8www.ti.com
APPLICATION INFORMATION
Figure 2
141210
7.45
7.50
7.55
7.60
7.40
VCC − Supply Voltage − V
13119
VREF − Reference Voltage − V
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
Figure 3
REFERENCE VOLTAGE
vs
REFERENCE CURRENT
0 5 10 15 20 25
7.495
7.500
7.505
7.510
7.490
VREF − Reference Voltage − V
IVREF − Reference Current − mA
Figure 4
MULTIPLIER OUTPUT CURRENT
vs
VOLTAGE ERROR AMPLIFIER OUTPUT
0.0 1.0 2.0 3.0 4.0 5.0
50
200
250
350
0
100
300
150
IAC = 150 µA
IAC = 300 µA
IAC = 500 µA
IMOUT - Multiplier Output Current − µA
VAOUT − Voltage Error Amplifier Output − V
Figure 5
MULTIPLIER GAIN
vs
VOLTAGE ERROR AMPLIFIER OUTPUT
1.0 2.0 3.0 4.0 5.0
0.7
1.1
1.3
1.5
0.5
0.9 IAC = 300 µA
IAC = 500 µA
IAC = 150 µA
Multiplier Gain − K
VAOUT − Voltage Error Amplifier Output − V
SLUS482B - APRIL 2001 − REVISED DECEMBER 2004
9
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APPLICATION INFORMATION
Figure 6
VFF − Feedforward Voltage − V
1.0 2.0 3.0 4.0 5.0
100
300
400
500
0
200
VAOUT = 3 V
VAOUT = 2 V
VAOUT = 4 V
VAOUT = 5 V
(VFF × IMOUT) − µW
MULTIPLIER CONSTANT POWER PERFORMANCE
0.0
Figure 7
10 12 14 16 20
10
14
15
17
8
12
18
9
11
13
16
RECOMMENDED MINIMUM GATE RESISTANCE
vs
SUPPLY VOLTAGE
RGATE - Recommended Minimum Gate Resistance − Ω
VCC − Supply Voltage − V
PACKAGING INFORMATION
Orderable Device Status (1) Package
Type Package
Drawing Pins Package
Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
UCC2819D ACTIVE SOIC D 16 40 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
UCC2819DG4 ACTIVE SOIC D 16 40 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
UCC2819DTR ACTIVE SOIC D 16 2500 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
UCC2819DTRG4 ACTIVE SOIC D 16 2500 Green (RoHS &
no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
UCC2819N ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
UCC2819NG4 ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
UCC3819N ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
UCC3819NG4 ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com 28-Aug-2008
Addendum-Page 1
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0 (mm) B0 (mm) K0 (mm) P1
(mm) W
(mm) Pin1
Quadrant
UCC2819DTR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 19-Apr-2008
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
UCC2819DTR SOIC D 16 2500 333.2 345.9 28.6
PACKAGE MATERIALS INFORMATION
www.ti.com 19-Apr-2008
Pack Materials-Page 2
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