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ML4826IP-2 Datasheet(PDF) 2 Page - Micro Linear Corporation

No. de pieza ML4826IP-2
Descripción Electrónicos  PFC and Dual Output PWM Controller Combo
PDF  16 Pages
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Fabricante Electrónico  MICRO-LINEAR [Micro Linear Corporation]
Página de inicio  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4826IP-2 Datasheet(HTML) 2 Page - Micro Linear Corporation

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ML4826
2
PIN CONFIGURATION
PIN DESCRIPTION
PIN
NAME
FUNCTION
11
AGND
Analog signal ground
12
PGND
Return for the PWM totem-pole
outputs
13
PWM 2
PWM driver 2 output
14
PWM 1
PWM drive 1 output
15
PFC OUT
PFC driver output
16
VCC2
Positive supply for the PWM drive
outputs
17
VCC1
Positive supply (connected to an
internal shunt regulator).
18
VREF
Buffered output for the internal 7.5V
reference
19
VFB
PFC transconductance voltage error
amplifier input
20
VEAO
PFC transconductance voltage error
amplifier output
PIN
NAME
FUNCTION
1
IEAO
PFC transconductance current error
amplifier output
2IAC
PFC gain control reference input
3ISENSE
Current sense input to the PFC current
limit comparator
4VRMS
Input for PFC RMS line voltage
compensation
5
SS
Connection point for the PWM soft start
capacitor
6VDC
PWM voltage feedback input
7RTCT
Connection for oscillator frequency
setting components
8
RAMP 1
PFC ramp input
9
RAMP 2
When in current mode, this pin
functions as the current sense input;
when in voltage mode, it is the PWM
input from the PFC output (feedforward
ramp)
10
DC ILIMIT
PWM current limit comparator input
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IEAO
IAC
ISENSE
VRMS
SS
VDC
RTCT
RAMP 1
RAMP 2
DC ILIMIT
VEAO
VFB
VREF
VCC2
VCC1
PFC OUT
PWM 1
PWM 2
PGND
AGND
TOP VIEW
ML4826
20-Pin PDIP (P20)
20-Pin SOIC (S20)



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