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ML4825CS Datenblatt(PDF) 2 Page - Micro Linear Corporation

Teilenummer ML4825CS
Bauteilbeschribung  High Frequency Power Supply Controller
PDF  9 Pages
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Hersteller  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4825CS Datenblatt(HTML) 2 Page - Micro Linear Corporation

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ML4825
2
PIN CONFIGURATION
PIN
NAME
FUNCTION
PIN
NAME
FUNCTION
1 (2)
INV
Inverting input to error amp.
2 (3) NI
Non-inverting input to error amp.
3 (4) E/A OUT
Output of error amplifier and input
to main comparator
4 (5) CLOCK
Oscillator output
5 (7) RT
Timing resistor for oscillator—
sets charging current for oscillator
timing capacitor (pin 6)
6 (8) CT
Timing capacitor for oscillator
7 (9) RAMP
Non-inverting input to main
comparator. Connected to CT for
voltage mode operation or to current
sense resistor for current mode
8 (10) SS
Normally connected to soft start
capacitor
9 (12) ILIM/SD
Current limit sense pin. Normally
connected to current sense resistor.
10 (13) GND
Analog signal ground
11 (14) OUT A
High current totem pole output. This
output is the first one energized after
power on reset
12 (15) PWR GND Return for the high current totem
pole outputs
13 (17) VC
Positive supply for the high current
totem pole output
14 (18) OUT B
High current totem pole output
15 (19) VCC
Positive supply for the IC
16 (20) 5.1V REF
Buffered output for the 5.1V voltage
reference
PIN DESCRIPTION (Pin number in parentheses is for PLCC version)
ML4825
16-Pin PDIP
16-Pin SOIC
ML4825
20-Pin PLCC
INV
NI
E/A OUT
CLOCK
RT
CT
RAMP
SS
5.1V REF
VCC
OUT B
VC
PWR GND
OUT A
GND
ILIM/SD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TOP VIEW
OUT B
VC
NC
PWR GND
OUT A
E/A OUT
CLOCK
NC
RT
CT
910 11
12
13
4
5
6
7
8
32
1
20
19
18
17
16
15
14
TOP VIEW



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