參數(shù)資料
型號： UC2854Q
廠商： Texas Instruments, Inc.
元件分類： 基準電壓源/電流源
英文描述： High Power Factor Preregulator
中文描述： 高功率因數(shù)前置穩(wěn)壓器
文件頁數(shù)： 3/9頁
文件大?。?/td> 281K
代理商： UC2854Q
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT AMPLIFIER
Current Amp Offset Voltage
I
SENSE
Bias Current
Input Range, I
SENSE
, Mult Out
Current Amp Gain
Current Amp Output Swing
Current Amp Short Circuit Current
Current Amp Gain-BW Product
REFERENCE
Reference Output Voltage
–4
4
mV
nA
V
dB
V
mA
kHz
–500
–120
500
–0.3 to 2.5
80
110
0.5 to 16
–20
800
CA Out=0V
T
A
=25
o
C (Note 6)
–36
400
–5
I
REF
=0mA, T
A
=25
o
C
I
REF
=0mA, Over Temp.
–10mA<I
REF
<0mA
15V<V
CC
<35V
REF=0V
7.4
7.35
–15
–10
–50
7.5
7.5
5
2
–28
7.6
7.65
15
10
–12
V
V
V
REF
Load Regulation
V
REF
Line Regulation
V
REF
Short Circuit Current
MULTIPLIER
Mult Out Current I
AC
Limited
Mult Out Current Zero
Mult Out Current R
SET
Limited
Mult Out Current
mV
mV
mA
I
AC
=100
μ
A, R
SET
=10k, V
RMS
=1.25V
I
AC
=0
μ
A, R
SET
=15k
I
AC
=450
μ
A, R
SET
=15k, V
RMS
=1V, VA Out = 6V
I
AC
=50
μ
A, V
RMS
=2V, VA=4V
I
AC
=100
μ
A, V
RMS
=2V, VA=2V
I
AC
=200
μ
A, V
RMS
=2V, VA=4V
I
AC
=300
μ
A, V
RMS
=1V, VA=2V
I
AC
=100
μ
A, V
RMS
=1V, VA=2V
(Note 5)
–220
–2.0
–280
–50
–38
–165
–250
–95
–200
–0.2
–255
–42
–27
–150
–225
–80
–1.0
–180
2.0
–220
–33
–12
–105
–150
–60
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
V
Multiplier Gain Constant
OSCILLATOR
Oscillator Frequency
R
SET
=15k
R
SET
=8.2k
46
86
4.9
0.8
55
102
5.4
1.1
62
118
5.9
1.3
kHz
kHz
V
V
C
T
Ramp Peak-to-Valley Amplitude
C
T
Ramp Valley Voltage
GATE DRIVER
Maximum GT Drv Output Voltage
GT Drv Output Voltage High
GT Drv Output Voltage Low, Off
GT Drv Output Voltage Low
0mA load on GT Drv, 18V<V
CC
<35V
–200mA load on GT Drv, V
CC
=15V
V
CC
=0V, 50mA load on GT Drv
200mA load on GT Drv
10mA load on GT Drv
10nF from GT Drv to Gnd
1nF from GT Drv to Gnd
V
CA Out
=7V
13
12
14.5
12.8
0.9
1.0
0.1
1.0
35
95
18
V
V
V
V
V
A
ns
%
1.5
2.2
0.4
Peak GT Drv Current
GT Drv Rise/Fall Time
GT Drv Maximum Duty Cycle
CURRENT LIMIT
PKLMT Offset Voltage
PKLMT Input Current
PKLMT to GT Drv Delay
–10
–200
10
mV
μ
A
ns
PKLMT=–0.1V
PKLMT falling from 50mV to –50mV
–100
175
Unless otherwise stated, V
CC
=18V, R
SET
=15k to ground, C
T
=1.5nF to ground, PKLMT=1V, ENA=7.5V,
V
RMS
=1.5V, I
AC
=100
μ
A, I
SENSE
=0V, CA Out=3.5V, VA Out=5V, V
SENSE
=7.5V, no load on SS, CA Out,
VA Out, REF, GT Drv, –55
o
C<T
A
<125
o
C for the UC1854, –40
o
C<T
A
<85
o
C for the UC2854, and
0
o
C<T
A
<70
o
C for the UC3854, and T
A
=T
J
.
UC1854
UC2854
UC3854
Note 5: Multiplier Gain Constant (k) is defined by: I
Mult Out
=
k
×
I
AC
×
(
VA Out
1
)
V
RMS2
Note 6: Guaranteed by design. Not 100% tested in production.
ELECTRICAL
CHARACTERISTICS
3
相關PDF資料
PDF描述
UC1854N ; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes
UC3854J High Power Factor Preregulator
UC3854L High Power Factor Preregulator
UC1854DW High Power Factor Preregulator
UC1855 High Performance Power Factor Preregulator
相關代理商/技術參數(shù)
參數(shù)描述
UC2855ADW 功能描述:功率因數(shù)校正 IC High Performance Preregulator RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2855ADWG4 功能描述:功率因數(shù)校正 IC High Performance Preregulator RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2855ADWTR 功能描述:功率因數(shù)校正 IC High Performance Preregulator RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2855ADWTRG4 功能描述:功率因數(shù)校正 IC High Performance Preregulator RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2855AN 功能描述:功率因數(shù)校正 IC High Performance Preregulator RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*