參數(shù)資料
型號(hào): ML4821
廠商: Fairchild Semiconductor Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Power Factor Controller
中文描述: 功率因數(shù)控制器
文件頁(yè)數(shù): 2/12頁(yè)
文件大?。?/td> 106K
代理商: ML4821
ML4821
PRODUCT SPECIFICATION
2
REV. 1.0.2 6/19/01
Pin Connection
Pin Description
Pin Number
Name
I
LIM
IA OUT
IA
IA+
Function
18-Pin DIP
1
2
3
4
20-Pin SOIC
1
2
3
4
Peak cycle-by-cycle current limit input
Output and compensation node of the average current error amplifier
Inverting input of the average current error amplifier
Non-Inverting input of the average current error amplifier and output of the
gain modulator
Gain modulator input
EA OUT Output of output voltage error amplifier
INV
Inverting input to error amplifier
V
RMS
Input for average line voltage compensation
SOFT
START
SYNC
Oscillator synchronization input
OVP
Inhibits output pulses when the voltage at this pin exceeds 5V. Also,
when the voltage at this pin is less than 0.7V, the IC goes into low current
shut-down mode.
R
T
Timing resistor for the oscillator
PWR
GND
OUT
High current totem pole output
V
CC
Positive supply for the IC
V
REF
Buffered output for the 5V voltage reference
C
T
Timing capacitor for the oscillator.
GND
Analog signal ground
5
6
7
8
9
5
6
7
8
9
I
SINE
Normally connected to soft start capacitor
10
11
12
13
12
13
14
15
Return for the high current totem pole output
14
15
16
17
18
16
17
18
19
20
I
LIM
IA OUT
IA
IA+
I
SINE
EA OUT
EA
V
RMS
SOFT START
GND
C
T
V
REF
V
CC
OUT
PGND
R
T
OVP
SYNC
I
LIM
IA OUT
IA
IA+
I
SINE
EA OUT
EA
V
RMS
SOFT START
N/C
GND
C
T
V
REF
V
CC
OUT
PGND
R
T
OVP
SYNC
N/C
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
TOP VIEW
18-Pin PDIP (P18)
20-Pin SOIC (S20)
TOP VIEW
相關(guān)PDF資料
PDF描述
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