參數(shù)資料
型號： UCC1810
廠商： Texas Instruments, Inc.
英文描述： Dual Channel Synchronized Current Mode PWM
中文描述： 雙通道同步電流模式PWM
文件頁數(shù)： 2/8頁
文件大?。?/td> 469K
代理商： UCC1810
2
UCC1810
UCC2810
UCC3810
ABSOLUTE MAXIMUM RATINGS
V
CC
Voltage (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
V
CC
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
OUT1, OUT2 Current, Peak, 5% Duty Cycle. . . . . . . . . . . .
±
1A
OUT1, OUT2 Energy (Capacitive Load) . . . . . . . . . . . . . . 20
μ
J
Analog Inputs (FB1, FB2, CS1, CS2, SYNC). . . . –0.3V to 6.3V
Operating Junction Temperature. . . . . . . . . . . . . . . . . . +150
°
C
Storage Temperature Range . . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (Soldering, 10 seconds) . . . . . . . . . . 300
°
C
Note 1
: All voltages are with respect to GND. All currents are
positive into the specified terminals.
Note 2
: Consult Unitrode Integrated Circuits Product & Appli-
cations Handbook for information regarding thermal
specifications and limitations of packages.
Note 3:
In normal operation, V
CC
is powered through a current
limiting resistor. Absolute maximum of 11V applies
when driven from a low impedance such that the V
CC
current does not exceed 20mA.
CONNECTION DIAGRAM
ELECTRICAL CHARACTERISTICS:
Unless otherwise stated, these specifications apply for –55
°
C
≤
T
A
≤
125
°
C for
UCC1810; –40
°
C
≤
T
A
≤
85
°
C for UCC2810; 0°C
≤
T
A
≤
70°C for UCC3810; V
CC
= 10V (Note 4); R
T
= 150k; C
T
= 120pF;
No Load; T
A
= T
J
. All parameters are the same for both channels.
PARAMETER
TEST CONDITIONS
Reference Section
Output Voltage
T
J
= 25
°
C
Load Regulation
0mA < I
REF
< 5mA
Line Regulation
UVLO Stop Threshold Voltage +0.5V < V
CC
< Shunt
Voltage
Output Voltage
Full temperature range, 0mA < I
REF
< 5mA
Output Noise Voltage
10Hz < f < 10kHz, T
J
= +25
°
C (Note 10)
Long Term Stability
T
A
= +125
°
C, 1000 Hours (Note 10)
Output Short Circuit Current
Oscillator Section
Oscillator Frequency
R
T
= 30k, C
T
= 120pF (Note 5)
Oscillator Frequency
R
T
= 150k, C
T
= 120pF (Note 5)
Temperature Stability
(Note 10)
Peak Voltage
Valley Voltage
Peak-to-Peak Amplitude
SYNC Threshold
SYNC Input Current
SYNC = 5V
Error Amplifier Section
FB Input Voltage
COMP = 2.5V
FB Input Bias Current
Open Loop Voltage Gain
Unity Gain Bandwidth
(Note 10)
COMP Sink Current
FB = 2.7V, COMP = 1V
COMP Source Current
FB = 1.8V, COMP = 4V
Minimum Duty Cycle
COMP = 0V
COMP Soft Start Rise Time
FB = 1.8V, Rise from 0.5V to REF–1.5V
MIN
TYP
MAX
UNITS
4.925
5.000
5
12
5.075
25
V
mV
mV
4.85
5.00
235
5
–8
5.10
V
μ
V
mV
mA
–25
840
200
940
220
2.5
2.5
0.05
2.45
1.65
30
1040
240
kHz
kHz
%
V
V
V
V
μ
A
2.25
0.80
2.65
2.2
2.44
2.50
2.56
±
1
V
μ
A
dB
MHz
mA
mA
%
ms
60
73
2
1.4
–0.5
0.3
–0.2
3.5
–0.8
0
5
DIL-16, SOIC-16 (TOP VIEW)
J or N Package, DW Package
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PDF描述
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