參數(shù)資料
型號： L4981XD
廠商： 意法半導體
元件分類： 基準電壓源/電流源
英文描述： POWER FACTOR CORRECTOR
中文描述： 功率因數(shù)校正
文件頁數(shù)： 5/17頁
文件大小： 228K
代理商： L4981XD
ELECTRICALCHARACTERISTICS
(continued)
Symbol
SUPPLY VOLTAGE
V
CC
OVER VOLTAGE PROTECTION COMPARATOR
V
thr
Rising Threshold Voltage
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Operating Supply Voltage
19.5
V
V
ref
-20mV
180
5.1
V
ref
+20mV
320
1
2
V
V
3Hys
I
3
t
d
Hysteresis
Input Bias Current
Propagation delay to output
250
0.05
1
mV
μ
A
μ
s
V
OVP
= V
thr
+100mV
OVER CURRENT PROTECTIONCOMPARATOR
V
th
Threshold Voltage
t
d
Propagation delay to Output
I
ipk
Current Source Generator
I
L
Leakage Current
CURRENT AMPLIFIER SECTION
V
offset
Input Offset Voltage
I
9bias
Input Bias Current
Open Loop Gain
SVR
Supply Voltage Rejection
±
30
0.9
105
5
mV
μ
s
μ
A
μ
A
V
OCP
= V
thr
-0.2V
V
IPK
= -0.1V
V
IPK
= -0.1V
0.4
85
onlyfor L4981A
onlyfor L4981B
65
V
MULT OUT
= V
SENSE
= 3.5V
V
SENSE
= 0V
1.1V
≤
V
CA OUT
≤
6V
12V
≤
V
CC
≤
19V
V
MULT OUT
= 3.5V V
SENSE
= 3.5V
V
MULT OUT
= 200mV
I
CA OUT
= -0.5mA, V
IAC
= 0V
V
MULT OUT
= -200mV
I
CA OUT
= 0.5mA, V
IAC
= 0V
V
MULT OUT
= 200mV,
V
IAC
= 0V, V
CA-OUT
= 3.5V
±
2
500
mV
nA
dB
dB
-500
70
68
50
100
90
V
5H
Output High Voltage
6.2
V
V
5L
Output Low Voltage
0.9
V
-I
5
I
5
Output Source Current
Output Sink Current
2
2
10
10
mA
mA
OUTPUT SECTION
V
20L
V
20H
Output Voltage Low
Output Voltage High
I
SINK
= 250mA
I
SOURCE
= 250mA
V
CC
= 15V
C
OUT
= 1nF
C
OUT
= 1nF
I
SOURCE
= 0mA
0.5
12.5
0.8
V
V
11.5
t
r
t
f
Output Voltage Rise Time
Output Voltage Fall Time
Voltage Clamp
50
30
16
150
100
19
ns
ns
V
V
GDRV
TOTAL STANDBY CURRENT SECTION
I
19start
Supply Current before start up
I
19on
Supply Current after turn on
13
V
CC
= 14V
V
IAC
= 0V, V
COSC
= 0,
Pin17= Open
Pin20 = 1nF
(*)
0.3
8
0.5
12
mA
mA
I
19
V
CC
Operating Supply Current
Zener Voltage
12
25
16
30
mA
V
20
UNDER VOLTAGE LOCKOUT SECTION
V
th ON
Turn on Threshold
V
th OFF
Turn off Threshold
Programmable Turn-on Threshold
14.5
9
10.6
15.5
10
12
16.5
11
13.4
V
V
V
Pin 15 to V
CC
= 220K
Pin15 to GND = 33K
LOAD FEED FORWARD
I
LFF
Bias Current
V
6
= 1.6V
V
6
= 5.3V
70
200
140
300
5.3
μ
A
μ
A
V
V
I
Input Voltage Range
1.6
(*) Maximum package power dissipation limits must be observed.
L4981A - L4981B
5/17
相關PDF資料
PDF描述
L4985
L4985D Voltage-Mode SMPS Controller
L4987CXX120 VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CXX30 VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CXX33 VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG
相關代理商/技術參數(shù)
參數(shù)描述
L4984D 功能描述:功率因數(shù)校正 IC Current Mode PFC CCM Line Modulated Bi 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
L4984DTR 功能描述:功率因數(shù)校正 IC Current Mode PFC CCM Line Modulated Bi 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
L4985 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
L4985D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller
L4987 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
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

*
*
*