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MIC38C43 датащи(PDF) 8 Page - Microchip Technology

номер детали MIC38C43
подробное описание детали  BiCMOS Current-Mode PWM Controllers
PDF  24 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC38C43 датащи(HTML) 8 Page - Microchip Technology

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MIC38C42/43/44/45
DS20006436B-page 8
2020 - 2022 Microchip Technology Inc. and its subsidiaries
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Pin Number
8-Pin DIP,
SOIC, MSOP
Pin Number
14-Pin DIP
and SOIC
Pin Name
Description
1
1
COMP
Compensation: Connect external compensation network to modify
the error amplifier output.
—
2
NC
Not internally connected.
2
3
FB
Feedback (Input): Error amplifier input. Feedback is 2.5V at
desired output voltage.
—
4
NC
Not internally connected.
3
5
ISNS
Current Sense (Input): Current sense comparator input. Connect
to current sensing resistor or current transformer.
—
6
NC
Not internally connected.
4
7
RT/CT
Timing Resistor/Timing Capacitor: Connect external RC network to
select switching frequency.
5
—
GND
Ground: Combined analog and power ground.
—
8
PGND
Power Ground: N-channel driver transistor ground.
—
9
AGND
Analog Ground: Controller circuitry ground.
6
10
OUT
Gate Driver Output: Totem-pole output.
—
11
VD
Power Supply (Input): P-channel driver transistor supply input.
Return to power ground (PGND).
7
12
VDD
Analog Supply (Input): Controller circuitry supply input. Return to
analog ground (AGND).
—
13
NC
Not internally connected.
8
14
VREF
5V Reference (Output): Connect external RC network.



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