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ML4818CS датащи(PDF) 2 Page - Micro Linear Corporation

номер детали ML4818CS
подробное описание детали  Phase Modulation/Soft Switching Controller
PDF  12 Pages
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производитель  MICRO-LINEAR [Micro Linear Corporation]
домашняя страница  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4818CS датащи(HTML) 2 Page - Micro Linear Corporation

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2
ML4818
PIN DESCRIPTION
PIN
NAME
FUNCTION
1
GND
Ground
2CT
Timing capacitor for oscillator
3
RAMP
Non-inverting input to main
comparator. Connected to current
sense resistor for current mode
4ILIM
Current limit sense pin. Normally
connected to current sense resistor
5
E/A OUT
Output of error amplifier and input
to PWM comparator
6,7
GND
Ground and substrate
8
INV
Inverting input to error amp
9
SOFT START
Normally connected to soft start
capacitor
10
SHUTDOWN Pulling this pin low puts the IC into
a power down mode and turns off
all outputs. This pin is internally
pulled up to VREF.
11
RT
Resistor which sets discharge
current for oscillator timing
capacitor
PIN
NAME
FUNCTION
12
RCRESET
Timing elements for Integrating fault
detection and reset delay circuits
13
CLOCK
Oscillator output
14
RDELAY
Resistor to ground on this pin
programs the amount of delay from
the time an output turns off until its
complementary output turns on
15
GND
Ground
16
A2 OUT
High current totem pole output A1
17
A1 OUT
High current totem pole output A2
18,19 GND
Ground and substrate
20
VCC
Positive supply for the IC
21
B2 OUT
High current totem pole output B1
22
B1 OUT
High current totem pole output B2
23
GND
Ground
24
VREF
Buffered output for the 5V voltage
reference
PIN CONNECTION
VREF
GND
B1 OUT
B2 OUT
VCC
GND
GND
A1 OUT
A2 OUT
GND
RDELAY
CLOCK
GND
CT
RAMP
ILIM
E/A OUT
GND
GND
INV
SOFT START
SHUTDOWN
RT
RCRESET
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24-Pin Power DIP
GND
CT
RAMP
ILIM
E/A OUT
GND
GND
INV
SOFT START
SHUTDOWN
RT
RCRESET
VREF
GND
B1 OUT
B2 OUT
VCC
GND
GND
A1 OUT
A2 OUT
GND
RDELAY
CLOCK
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
TOP VIEW
24-Pin SOIC



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