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參數(shù)資料
| 型號： | UCC1858 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | High Efficiency, High Power Factor Preregulator |
| 中文描述： | 高效率，高功率因數(shù)前置穩(wěn)壓器 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 343K |
| 代理商： | UCC1858 |
3
UCC1858
UCC2858
UCC3858
ELECTRICAL CHARACTERISTICS:
Unless otherwise stated, these specifications apply for T
A
= 0°C to 70°C for the
UCC3858, –40°C to +85°C for the UCC2858, and –55°C to +150°C for the UCC1858, V
VDD
= 12V, R
T
= 24k, C
T
= 330pF, R
FBM
=
96k, I
IAC
= 100
μ
A, T
A
= T
J
.
PARAMETER
TEST CONDITIONS
Current Amplifier
Input Offset Voltage
V
CM
= 0V, V
CAO
= 3V
Input Bias Current
V
CM
= 0V, V
CAO
= 3V
Input Offset Current
V
CM
= 0V, V
CAO
= 3V
Open Loop Gain
V
CM
= 0V, V
CAO
= 2V to 5V
CMRR
V
CM
= 0V to 1.5V, V
CAO
= 3V
CAO High
V
CA–
= 0V, V
MOUT
= 1V, I
L
= –50
μ
A
CAO Low
V
CA–
= 1V, V
MOUT
= 0V, I
L
= 1mA
Maximum Output Source Current
Voltage Reference
Output Voltage
I
REF
= 0mA, T
A
= 25°C
Over Temperature, UCC3858
Over Temperature, UCC2858, UCC1858
Load Regulation
I
REF
= 0mA to 2mA
Line Regulation
V
DD
= 12V to 16V
Short Circuit Current
V
REF
= 0V
Oscillator
Initial Accuracy
T
A
= 25°C
Voltage Stability
V
DD
= 12V to 16V
Total Variation
Line, Temperature
Ramp Amplitude (p-p)
Oscillator Free Running, VAO = 5.5V
Ramp Peak Voltage
Oscillator Free Running, VAO = 5.5V
Peak Current Limit
PKLMT Threshold Voltage
(V
CA
–)–V
MOUT
PKLMT Hysteresis
PKLMT Propagation Delay
Multiplier Section
High Line, Low Power
I
AC
= 100
μ
A, V
CRMS
= 3.5V, VA
OUT
= 1.25V
High Line, High Power
I
AC
= 100
μ
A, V
CRMS
= 3.5V, VA
OUT
= 5.5V
Low Line, Low Power
I
AC
= 20
μ
A, V
CRMS
= 0.75V, VA
OUT
= 1.25V
Low Line, High Power
I
AC
= 20
μ
A, V
CRMS
= 0.75V, VA
OUT
= 5.5V
IAC Limited
I
AC
= 20
μ
A, V
CRMS
= 0.4V, VA
OUT
= 5.5V
Gain Constant
I
AC
= 100
μ
A, V
CRMS
= 3.5V, VA
OUT
= 5.5V
Zero Current
I
AC
= 20
μ
A, V
CRMS
= 0.75V, VA
OUT
= 5.5V (Note 1)
I
AC
=100
μ
A, V
CRMS
= 3.5V, VA
OUT
= 5.5V (Note 1)
Power Limit (V
CRMS
I
MO
)
I
AC
= 20
μ
A, V
CRMS
= 0.75V, VA
OUT
= 5.5V
PWM Frequency Foldback
FBL Input Current
FBL Output Disable
Foldback Minimum Frequency
R
FBM
= 100k
FBM Foldback Override
MIN
TYP
MAX
UNITS
–3
–6.5
–0.5
80
65
6.5
0
3
mV
μ
A
μ
A
dB
dB
V
V
μ
A
–5
0.0
90
80
7
0.2
–150
0.5
7.5
0.3
–130
7.313
7.294
7.239
7.5
7.5
7.5
3
30
35
7.688
7.707
7.762
5
V
V
V
mV
mV
mA
50
90
100
110
1
120
3.7
4.8
kHz
%
kHz
V
V
80
3.3
4.4
3.5
4.6
350
450
100
1
550
200
mV
mV
μ
s
1
15
4
64
64
2.5
0
0
45
μ
A
μ
A
μ
A
μ
A
μ
A
1/V
μ
A
μ
A
μ
W
–500
–100
0.5
25
1.5
nA
V
kHz
V
30
1.75
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UCC1858DW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Factor Controller |
| UCC1858DWTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Factor Controller |
| UCC1858J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Factor Controller |
| UCC1858N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| UCC1883J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
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