UCC2801QDRQ1 [TI]
LOW-POWER BICMOS CURRENT-MODE PWM; 低功耗BiCMOS电流模式PWM
| 型号： | UCC2801QDRQ1 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | LOW-POWER BICMOS CURRENT-MODE PWM |
| 文件： | 总14页 (文件大小：384K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ꢀꢁꢁ ꢂ ꢃꢄ ꢄ ꢅ ꢂ ꢃ ꢄꢆ ꢅ ꢂ ꢃꢄ ꢂ ꢅ ꢂ ꢃ ꢄ ꢇ ꢅꢂ ꢃ ꢄ ꢈ ꢅꢂ ꢃꢄ ꢉꢊ ꢋ ꢆ
ꢌ ꢍꢎꢊꢏꢍ ꢎ ꢐꢑ ꢒꢓ ꢁꢔꢍ ꢕ ꢁꢀꢑ ꢑꢐꢖꢗꢊꢔꢍ ꢘ ꢐ ꢏ ꢎꢔ
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SGLS121B − JULY 2002 − REVISED 2004
D
Qualification in Accordance With
AEC-Q100
D
D
D
D
Operation to 1 MHz
Internal Soft Start
†
D
Qualified for Automotive Applications
Internal Fault Soft Start
D
Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
Internal Leading-Edge Blanking of the
Current Sense Signal
D
1-Amp Totem-Pole Output
D
D
ESD Protection Exceeds 200 V Using
Machine Model (C = 200 pF, R = 0)
D
70-ns Typical Response from
Current-Sense to Gate Drive Output
100-µA Typical Starting Supply Current
500-µA Typical Operating Supply Current
D
D
1.5% Tolerance Voltage Reference
D
Same Pinout as UC3842 and UC3842A
†
Contact factory for details. Q100 qualification data available on
request.
description
The UCC2800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive
components required for off-line and dc-to-dc fixed frequency current-mode switching power supplies with
minimal parts count.
These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features
of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
The UCC2800/1/2/3/4/5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference
parts such as the UCC2803 and UCC2805 fit best into battery operated systems, while the higher reference
and the higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line
power supplies.
The UCC280xQDRQ1 series is specified for the automotive temperature range of −40_C to 125_C, and
qualified in accordance with AEC-Q100 stress test qualification for integrated circuits.
PART NUMBER
UCC2800
UCC2801
UCC2802
UCC2803
UCC2804
UCC2805
MAXIMUM DUTY CYCLE REFERENCE VOLTAGE
TURN-ON THRESHOLD TURN-OFF THRESHOLD
100%
50%
5 V
5 V
5 V
4 V
5 V
4 V
7.2 V
9.4 V
12.5 V
4.1 V
12.5 V
4.1 V
6.9 V
7.4 V
8.3 V
3.6 V
8.3 V
3.6 V
100%
100%
50%
50%
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.
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Copyright 2004, Texas Instruments Incorporated
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1
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SGLS121B − JULY 2002 − REVISED 2004
block diagram
FB
2
COMP
1
CS
3
7
VCC
UCCx801
UCCx804
UCCx805
Only
Leading Edge
Blanking
VCC
OK
1.5 V
Overcurrent
REF/2
T Q
S Q
R
Oscillator
OUT
6
S Q
R
4 V
S Q
PWM
Latch
R
REF
OK
13.5 V
0.5 V
Full Cycle
Soft Start
Logic
Power
= 4 ms
1 V
GND
5
8
4
REF
RC
D PACKAGE
(TOP VIEW)
AVAILABLE OPTIONS
SOIC-8
COMP
FB
REF
1
2
3
4
8
7
6
5
SMALL OUTLINE
(D)
TA
V
CC
CS
OUT
GND
UCC2800QDRQ1
UCC2801QDRQ1
UCC2802QDRQ1
UCC2803QDRQ1
UCC2804QDRQ1
UCC2805QDRQ1
RC
−40_C to 125_C
†
The UCC280x−Q1 is only available taped and
reeled in quantities of 2500 devices per reel.
2
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SGLS121B − JULY 2002 − REVISED 2004
Ordering Information
80
0
Q
UCC2
D
R
Q1
Q100 INDICATOR
TAPE and REEL INDICATOR
PACKAGE
D
= Plastic SOIC
AUTOMOTIVE TEMPERATURE RANGE INDICATOR
PRODUCT OPTION
0 through 5
†‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
w
V
V
voltage
current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
CC
CC
w
Output current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A
O
Output energy, (Capacitive Load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 µJ
Analog Inputs (FB, CS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6.3 V
Power Dissipation at T < +25_C (D package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.65 W
A
Storage temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65_C to 150_C
stg
Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . 300_C
†
‡
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.
Unless otherwise indicated, voltages are reference to ground and currents are positive into and negative out of the specified terminals.
w In normal operation V
is powered through a current limiting resistor. Absolute maximum of 12 V applies when V is driven from a low
CC
CC
impedance source such that I
does not exceed 30 mA (which includes gate drive current requirement).
CC
electrical characteristics T = −40_C to 125_C, V
= 10 V (see Note 1), RT = 100 kΩ from REF to
A
CC
RC, CT = 330 pF from RC to GND, 0.1-F capacitor from V
to GND, 0.1-F capacitor from V
to
CC
REF
GND and T = T (unless otherwise stated)
A
J
PARAMETER
Reference Section
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UCC2800/01/02/04
UCC2803/05
4.925
3.94
5
4
5.075
4.06
30
Output voltage
V
T = 25C, I = 0.2 mA
I = 0.2 mA to 5 mA
J
Load regulation voltage
Line regulation voltage
10
mV
T = 25_C
1.9
J
V
CC
= 10 V to 12 V
mV/V
T = −40_C to 125_C
2.5
J
UCC2800/01/02/04
UCC2803/05
4.88
3.9
5
4
5.1
Total variation voltage
Output noise voltage
See Note 5
V
4.08
f = 10 Hz to 10 kHz,
See Note 7
T = 25_C
J
130
5
µV
1000 hours,
See Note 7
Long term stability
T
A
= 125_C
mV
mA
Output short-circuit current
−5
−35
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ꢌ ꢍꢎꢊꢏ ꢍꢎꢐꢑ ꢒꢓ ꢁ ꢔꢍꢕ ꢁꢀ ꢑꢑ ꢐꢖꢗꢊꢔꢍ ꢘ ꢐ ꢏꢎ ꢔ
ꢙ
SGLS121B − JULY 2002 − REVISED 2004
electrical characteristics T = −40_C to 125_C, V
= 10 V (see Note 1), RT = 100 kΩ from REF to
A
CC
RC, CT = 330 pF from RC to GND, 0.1-F capacitor from V
to GND, 0.1-F capacitor from V
to
CC
REF
GND and T = T (unless otherwise stated)
A
J
PARAMETER
Oscillator Section
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UCC2800/01/02/04
40
46
52
Oscillator frequency
See Note 2
See Note 7
kHz
UCC2803/05
26
31
2.5
36
Temperature stability
%
V
Amplitude peak-to-peak
Oscillator peak voltage
Error Amplifier Section
2.25
2.4
2.55
2.45
V
COMP = 2.5 V
COMP = 2.0 V
UCC2800/01/02/04
UCC2803/05
2.44
1.95
−1
2.5
2
2.56
2.05
1
Input voltage
V
Input bias current
µA
db
Open loop voltage gain
COMP sink current
COMP source current
Gain bandwidth product
PWM Section
60
80
FB = 2.7 V,
FB = 1.8 V,
See Note 7
COMP = 1.1 V
COMP = REF − 1.2 V
0.3
3.5
mA
mA
MHz
−0.2
−0.5
2
−0.8
UCC2800/02/03
97
48
99
49
100
50
0
Maximum duty cycle
%
%
UCC2801/04/05
Minimum duty cycle
Current Sense Section
Gain
COMP = 0 V
See Note 3
1.1
0.9
1.65
1
1.8
1.1
V/V
V
Maximum input signal
Input bias current
COMP = 5 V,
See Note 4
−200
50
200
150
1.68
1.35
nA
ns
V
CS blank time
100
1.55
0.9
Over-current threshold voltage
COMP to CS offset voltage
Output Section (OUT)
1.42
0.45
CS = 0 V
V
I
I
I
I
I
I
I
= 20 mA
All parts
0.1
0.35
0.15
0.7
0.15
1
0.4
0.9
0.4
1.2
0.4
1.9
0.9
70
OUT
OUT
OUT
OUT
OUT
OUT
OUT
= 200 mA
= 50 mA,
= 20 mA,
= −20 mA
= −200 mA
= −50 mA,
All parts
Low-level output voltage
V
V
V
V
= 5 V
= 0 V
UCC2803/05
All parts
CC
CC
All parts
All parts
High-level output voltage V
(V - OUT)
SAT CC
V
= 5 V UCC2803/05
0.4
41
CC
Rise time
Fall time
C
C
= 1 nF
ns
ns
L
L
= 1 nF
44
75
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ꢙ
SGLS121B − JULY 2002 − REVISED 2004
electrical characteristics T = −40_C to 125_C, V
= 10 V (see Note 1), RT = 100 kΩ from REF to
A
CC
RC, CT = 330 pF from RC to GND, 0.1-F capacitor from V
to GND, 0.1-F capacitor from V
to
CC
REF
GND and T = T (unless otherwise stated)
A
J
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Undervoltage Lockout Section
UCC2800
6.6
7.2
7.8
UCC2801
8.6
11.5
3.7
9.4
12.5
4.1
6.9
7.4
8.3
3.6
0.3
2
10.2
13.5
4.5
7.5
8
Start threshold
See Note 6
See Note 6
V
UCC2802/04
UCC2803/05
UCC2800
6.3
UCC2801
6.8
Stop threshold
V
UCC2802/04
UCC2803/05
UCC2800
7.6
9
3.2
4
0.12
1.6
0.48
2.4
5.1
0.8
UCC2801
Start to stop hysteresis
V
UCC2802/04
UCC2803/05
3.5
4.2
0.5
0.2
Soft Start Section
COMP rise time
FB = 1.8 V,
Rise from 0.5 V to REF − 1 V
4
10
ms
Overall Section
Start-up current
V
< Start Threshold
0.1
0.5
0.2
1
mA
mA
V
CC
FB = 0 V,
= 10 mA,
Operating supply current
CS = 0 V
V
V
internal zener voltage
I
See Notes 6 and 8
12
13.5
15
CC
CC
internal zener voltage minus start
CC
See Note 6
UCC2802/04
0.5
1.0
V
threshold voltage
NOTES: 1. Adjust V
above the start threshold before setting at 10 V.
CC
2. Oscillator frequency for the UCC2800, UCC2802 and UCC2803 is the output frequency.
Oscillator frequency for the UCC2801, UCC2804 and UCC2805 is twice the output frequency.
3. Gain is defined by:
0 v V
v 0.8 V.
DV
CS
COMP
A =
DV
CS
4. Parameter measured at trip point of latch with pin 2 at 0 V.
5. Total variation includes temperature stability and load regulation.
6. Start threshold, stop threshold, and zener shunt thresholds track one another.
7. Not production tested.
8. The device is fully operating in clamp mode as the forcing current is higher than the normal operating supply current.
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SGLS121B − JULY 2002 − REVISED 2004
detailed terminal descriptions
COMP
COMP is the output of the error amplifier and the input of the PWM comparator.
Unlike other devices, the error amplifier in the UCC2800 family is a true, low output-impedance, 2-MHz
operational amplifier. As such, the COMP terminal can both source and sink current. However, the error
amplifier is internally current limited, so that one can command zero duty cycle by externally forcing COMP to
GND.
The UCC2800 family features built-in full cycle soft start. Soft start is implemented as a clamp on the maximum
COMP voltage.
CS
CS is the input to the current sense comparators. The UCC2800 family has two different current sense
comparators: the PWM comparator and an over-current comparator.
The UCC2800 family contains digital current sense filtering, which disconnects the CS terminal from the current
sense comparator during the 100 ns interval immediately following the rising edge of the OUT pin. This digital
filtering, also called leading-edge blanking, means that in most applications, no analog filtering (RC filter) is
required on CS. Compared to an external RC filter technique, the leading-edge blanking provides a smaller
effective CS to OUT propagation delay. Note, however, that the minimum non-zero on-time of the OUT signal
is directly affected by the leading-edge-blanking and the CS to OUT propagation delay.
The over-current comparator is only intended for fault sensing, and exceeding the over-current threshold
causes a soft start cycle.
FB
FB is the inverting input of the error amplifier. For best stability, keep the FB lead length as short as possible
and the FB stray capacitance as small as possible.
ground (GND)
GND is reference ground and power ground for all functions on this part.
OUT
OUT is the output of a high-current power driver capable of driving the gate of a power MOSFET with peak
currents exceeding "750 mA. OUT is actively held low when V
is below the UVLO threshold.
CC
The high-current power driver consists of FET output devices, which can switch all of the way to GND and all
of the way to V . The output stage also provides a low impedance to overshoot and undershoot. This means
CC
that in many cases, external Schottky clamp diodes are not required.
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ꢙ
SGLS121B − JULY 2002 − REVISED 2004
detailed descriptions (continued)
RC
RC is the oscillator timing pin. For fixed frequency operation, set timing capacitor charging current by connecting
a resistor from REF to RC. Set frequency by connecting timing capacitor from RC to GND. For the best
perfomance, keep the timing capacitor lead to GND as short and direct as possible. If possible, use separate
ground traces for the timing capacitor and all other functions.
The frequency of oscillation can be estimated with the following equations:
1.5
UCC2800ń01ń02ń04 : F +
R C
1.0
UCC2803ńUCC2805 : F +
R C
(1)
Where frequency is in Hz, resistance is in ohms, and capacitance is in farads. The recommended range of timing
resistors is between 10 kΩ and 200 kΩ and the timing capacitor is 100 pF to 1000 pF. Never use a timing resistor
less than 10 kΩ.
To prevent noise problems, bypass V
An electrolytic capacitor may also be used in addition to the ceramic capacitor.
to GND with a ceramic capacitor as close to the V
pin as possible.
CC
CC
voltage reference (REF)
REF is the voltage reference for the error amplifier and also for many other functions on the IC. REF is also used
as the logic power supply for high speed switching logic on the IC.
When V is greater than 1 V and less than the UVLO threshold, REF is pulled to ground through a 5-kΩ resistor.
CC
This means that REF can be used as a logic output indicating power system status. It is important for reference
stability that REF is bypassed to GND with a ceramic capacitor as close to the pin as possible. An electrolytic
capacitor may also be used in addition to the ceramic capacitor. A minimum of 0.1-µF ceramic is required.
Additional REF bypassing is required for external loads greater than 2.5 mA on the reference.
To prevent noise problems with high speed switching transients, bypass REF to ground with a ceramic capacitor
close to the IC package.
power (V
)
CC
V
is the power input connection for this device. In normal operation V
is powered through a current limiting
CC
CC
resistor. Although quiescent V
Total V
frequency and the MOSFET gate charge (Q ), average OUT current can be calculated from:
current is low, total supply current will be higher, depending on OUT current.
CC
current is the sum of quiescent V
current and the average OUT current. Knowing the operating
CC
CC
g
IOUT + Qg F.
(2)
7
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ꢀ ꢁꢁꢂ ꢃ ꢄ ꢄ ꢅꢂ ꢃꢄ ꢆꢅ ꢂꢃ ꢄ ꢂꢅ ꢂ ꢃ ꢄ ꢇ ꢅ ꢂ ꢃ ꢄ ꢈ ꢅꢂ ꢃ ꢄ ꢉ ꢊꢋ ꢆ
ꢌ ꢍꢎꢊꢏ ꢍꢎꢐꢑ ꢒꢓ ꢁ ꢔꢍꢕ ꢁꢀ ꢑꢑ ꢐꢖꢗꢊꢔꢍ ꢘ ꢐ ꢏꢎ ꢔ
ꢙ
SGLS121B − JULY 2002 − REVISED 2004
PARAMETER MEASUREMENT INFORMATION
Error Amplifier
Gain/Phase Response
Oscillator
0.2 V
REF
8
4
R
S
Q
R
T
2.5 V
RC
C
T
The UCC3800/1/2/3/4/5 oscillator generates a sawtooth waveform
on RC. The rise time is set by the time constant of RT and CT . The
fall time is set by CT and an internal transistor on-resistance of
approximately 125. During the fall time, the output is off and the
maximum duty cycle is reduced below 50% or 100% depending on
the part number. Larger timing capacitors increase the discharge
time and reduce the maximum duty cycle and frequency.
Figure 1
Figure 2
UCC1803/05 V
REF
UCC1800/01/02/04 Oscillator Frequency
vs
vs
V
R and C
CC
T
T
I
L
= 0.5 mA
Figure 4
Figure 3
8
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ꢀꢁꢁ ꢂ ꢃꢄ ꢄ ꢅ ꢂ ꢃ ꢄꢆ ꢅ ꢂ ꢃꢄ ꢂ ꢅ ꢂ ꢃ ꢄ ꢇ ꢅꢂ ꢃ ꢄ ꢈ ꢅꢂ ꢃꢄ ꢉꢊ ꢋ ꢆ
ꢌ ꢍꢎꢊꢏꢍ ꢎ ꢐꢑ ꢒꢓ ꢁꢔꢍ ꢕ ꢁꢀꢑ ꢑꢐꢖꢗꢊꢔꢍ ꢘ ꢐ ꢏ ꢎꢔ
ꢙ
SGLS121B − JULY 2002 − REVISED 2004
UCC1800/02/03 Maximum Duty Cycle vs
Oscillator Frequency
UCC1803/05 Oscillator Frequency vs
R and C
T
T
Figure 5
Figure 6
UCC1801/04/05 Maximum Duty Cycle
vs
UCC1800 I
vs
CC
Oscillator Frequency
Oscillator Frequency
Figure 7
Figure 8
9
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ꢀ ꢁꢁꢂ ꢃ ꢄ ꢄ ꢅꢂ ꢃꢄ ꢆꢅ ꢂꢃ ꢄ ꢂꢅ ꢂ ꢃ ꢄ ꢇ ꢅ ꢂ ꢃ ꢄ ꢈ ꢅꢂ ꢃ ꢄ ꢉ ꢊꢋ ꢆ
ꢌ ꢍꢎꢊꢏ ꢍꢎꢐꢑ ꢒꢓ ꢁ ꢔꢍꢕ ꢁꢀ ꢑꢑ ꢐꢖꢗꢊꢔꢍ ꢘ ꢐ ꢏꢎ ꢔ
ꢙ
SGLS121B − JULY 2002 − REVISED 2004
Dead Time
vs
UCC1805 I
vs
Oscillator Frequency
CC
C
T
R = 100 kW
T
Figure 10
Figure 9
COMP to CS Offset
vs
Temperature
CS = 0 V
Figure 11
10
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ꢀꢁꢁ ꢂ ꢃꢄ ꢄ ꢅ ꢂ ꢃ ꢄꢆ ꢅ ꢂ ꢃꢄ ꢂ ꢅ ꢂ ꢃ ꢄ ꢇ ꢅꢂ ꢃ ꢄ ꢈ ꢅꢂ ꢃꢄ ꢉꢊ ꢋ ꢆ
ꢌ ꢍꢎꢊꢏꢍ ꢎ ꢐꢑ ꢒꢓ ꢁꢔꢍ ꢕ ꢁꢀꢑ ꢑꢐꢖꢗꢊꢔꢍ ꢘ ꢐ ꢏ ꢎꢔ
ꢙ
SGLS121B − JULY 2002 − REVISED 2004
MECHANICAL DATA
D (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
8 PINS SHOWN
0.020 (0,51)
0.050 (1,27)
8
0.010 (0,25)
0.014 (0,35)
5
0.244 (6,20)
0.228 (5,80)
0.008 (0,20) NOM
0.157 (4,00)
0.150 (3,81)
Gage Plane
1
4
0.010 (0,25)
0°− 8°
A
0.044 (1,12)
0.016 (0,40)
Seating Plane
0.004 (0,10)
0.010 (0,25)
0.069 (1,75) MAX
0.004 (0,10)
PINS **
8
14
16
DIM
A MAX
0.197
(5,00)
0.344
(8,75)
0.394
(10,00)
0.189
(4,80)
0.337
(8,55)
0.386
(9,80)
A MIN
4040047/E 09/01
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15).
D. Falls within JEDEC MS-012
11
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PACKAGE OPTION ADDENDUM
www.ti.com
25-Feb-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
SOIC
SOIC
SOIC
SOIC
SOIC
Drawing
UCC2800QDRQ1
UCC2801QDRQ1
UCC2802QDRQ1
UCC2803QDRQ1
UCC2804QDRQ1
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
D
D
D
D
D
8
8
8
8
8
2500
2500
2500
2500
2500
None
None
None
None
None
CU NIPDAU Level-1-260C-UNLIM
Call TI
Call TI
Call TI
Call TI
Level-1-220C-UNLIM
Level-1-220C-UNLIM
Level-1-220C-UNLIM
Level-1-220C-UNLIM
(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 - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional
product content details.
None: Not yet available Lead (Pb-Free).
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.
Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens,
including bromine (Br) or antimony (Sb) above 0.1% of total product weight.
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry 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.
Addendum-Page 1
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相关型号：
UCC2802DTR
1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC-8
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