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ML4821CS Folha de dados(PDF) 2 Page - Micro Linear Corporation

Nome de Peças ML4821CS
Descrição Electrónicos  Power Factor Controller
PDF  12 Pages
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Fabricante Electrônico  MICRO-LINEAR [Micro Linear Corporation]
Página de início  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4821CS Folha de dados(HTML) 2 Page - Micro Linear Corporation

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ML4821
Micro Linear
PIN CONNECTION
ML4821
20-Pin SOIC (S20)
ML4821
18-Pin DIP (P18)
PIN
NAME
FUNCTION
1 (1)
ILIM
Peak cycle-by-cycle current limit input
2 (2)
IA OUT Output and compensation node of the
average current error amplifier
3 (3)
IA–
Inverting input of the average current
error amplifier
4 (4)
IA+
Non-Inverting input of the average
current error amplifier and output of
the gain modulator
5 (5)
ISINE
Gain modulator input
6 (6)
EA OUT Output of output voltage error
amplifier
7 (7)
INV
Inverting input to error amplifier
8 (8)
VRMS
Input for average line voltage
compensation
9 (9)
SOFT
Normally connected to soft start
START
capacitor
PIN
NAME
FUNCTION
10 (12) SYNC
Oscillator synchronization input
11 (13) 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.
12 (14) RT
Timing resistor for the oscillator
13 (15) PWR
Return for the high current totem
GND
pole output
14 (16) OUT
High current totem pole output
15 (17) VCC
Positive supply for the IC
16 (18) VREF
Buffered output for the 5V voltage
reference
17 (19) CT
Timing capacitor for the oscillator.
18 (20) GND
Analog signal ground
ILIM
IA OUT
IA–
IA+
ISINE
EA OUT
EA–
VRMS
SOFT START
GND
CT
VREF
VCC
OUT
PGND
RT
OVP
SYNC
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
TOP VIEW
ILIM
IA OUT
IA–
IA+
ISINE
EA OUT
EA–
VRMS
SOFT START
N/C
GND
CT
VREF
VCC
OUT
PGND
RT
OVP
SYNC
N/C
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
TOP VIEW
PIN DESCRIPTION (Pin numbers in parentheses are for 20-pin packages)



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