TOP101YN datasheet(2/18 Pages) POWERINT

tên linh kiện	TOP101YN

Giải thích chi tiết về linh kiện	Three-terminal Off-line PWM Switch

PDF	18 Pages

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nhà sản xuất	POWERINT [Power Integrations, Inc.]

Trang chủ	http://www.powerint.com

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2 / 18 page

7 /09

TOP100-4

PI-1746-011796

SHUTDOWN/

AUTO-RESTART

PWM

COMPARATOR

CLOCK

SAW

OSCILLATOR

CONTROLLED

TURN-ON

GATE

DRIVER

INTERNAL

SUPPLY

5.7 V

4.7 V

SOURCE

DMAX

CONTROL

5.7 V

IFB

MINIMUM

ON-TIME

DELAY

VILIMIT

LEADING

EDGE

BLANKING

POWER-UP

RESET

÷ 8

THERMAL

SHUTDOWN

EXTERNALLY

TRIGGERED

SHUTDOWN

SHUNT REGULATOR/

ERROR AMPLIFIER

DRAIN

Figure 2. Functional Block Diagram.

Pin Functional Description

DRAIN Pin:

Output MOSFET drain connection. Provides internal bias

current during start-up operation via an internal switched high-

voltage current source. Internal current sense point.

CONTROL Pin:

Error amplifier and feedback current input pin for duty cycle

control. Internal shunt regulator connection to provide internal

bias current during normal operation. Trigger input for latching

shutdown. It is also used as the supply bypass and auto-restart/

compensation capacitor connection point.

SOURCE Pin:

Output MOSFET source connection.

Primary-side circuit

common, power return, and reference point.

PI-1065A-110194

CONTROL

DRAIN

SOURCE (TAB)

TO-220/3 (YO3A)

Figure 3. Pin Configuration.

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