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ML4832CS Datasheet(PDF) 2 Page - Micro Linear Corporation

Part # ML4832CS
Description  Electronic Dimming Ballast Controller
PDF  15 Pages
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Manufacturer  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4832CS Datasheet(HTML) 2 Page - Micro Linear Corporation

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ML4832
2
PIN CONFIGURATION
PIN# NAME
FUNCTION
PIN#
NAME
FUNCTION
1
EA OUT
PFC error amplifier output and
compensation node
2
IA OUT
Output and compensation node of the
PFC average current transconductance
amplifier
3ISINE
PFC gain modulator input
4
IA+
Non-inverting input of the PFC average
current transconductance amplifier
and peak current sense point of the
PFC cycle by cycle current limit
comparator
5
LAMP FB
Inverting input of an error amplifier
used to sense (and regulate) lamp arc
current. Also the input node for
dimming control.
6
LFB OUT
Output from the lamp current error
transconductance amplifier used for
lamp current loop compensation
7RSET
External resistor which sets oscillator
FMAX, and RX/CX charging current
8RT/CT
Oscillator timing components
PIN DESCRIPTION
9
INTERRUPT
Input used for lamp-out detection
and restart. A voltage greater than
7.5 volts resets the chip and
causes a restart after a
programmable interval.
10
RX/CX
Sets the timing for the preheat,
dimming lockout, and interrupt
11
GND
Ground
12
P GND
Power ground for the IC
13
OUT B
Ballast MOSFET drive output
14
OUT A
Ballast MOSFET drive output
15
PFC OUT
Power Factor MOSFET drive
output
16
VCC
Positive supply for the IC
17
VREF
Buffered output for the 7.5V
voltage reference
18
EA–/OVP
Inverting input to PFC error
amplifier and OVP comparator
input
EA OUT
IA OUT
ISINE
IA+
LAMP FB
LFB OUT
RSET
RT/CT
INTERRUPT
EA–/OVP
VREF
VCC
PFC OUT
OUT A
OUT B
P GND
GND
RX/CX
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
TOP VIEW
ML4832
18-Pin DIP (P18)
EA–/OVP
VREF
VCC
PFC OUT
OUT A
OUT B
P GND
GND
RX/CX
EA OUT
IA OUT
ISINE
IA+
LAMP FB
LFB OUT
RSET
RT/CT
INTERRUPT
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
TOP VIEW
ML4832
18-Pin SOIC (S18)



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