中文

Select Language

English 中文 Deutsch Français español Português
Tanssion > 博客 > 开关 > Overview of Switch-GX Family : TOP245YN TOP

Overview of Switch-GX Family : TOP245YN TOP

作者: Tanssion 日期: 2023-11-08 点击量: 0

Ⅰ. TOP245YN Description
Ⅱ. TOP245YN Pinout
Ⅲ. TOP245YN 3D Model
Ⅳ. TOP245YN Specifications
Ⅴ. TOP245YN Feature
Ⅵ. TOP245YN Application Examples
Ⅶ. TOP245YN Package Information
Ⅷ. TOP245YN Datasheet



Ⅰ. TOP245YN Description


The TOP245YN is a TOPSwitch-GX EcoSmart integrated off line switcher in 6 pin TO-220 package. TOPSwitch-GX uses the same proven topology as TOPSwitch which cost effectively by integrating high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to reduce system cost, improve design flexibility, high performance and energy efficient. The TOP245YN features soft start, frequency jittering for lower EMI, wider DCMAX, hysteretic thermal shutdown and larger creepage packages. In addition all critical parameters (current limit, frequency, PWM gain) have tighter temperature and absolute tolerances to simplify design and optimize system cost.




Ⅱ. TOP245YN Pinout


1. TOP245YN Pinout 




2. TOP245YN Pin Functions


PIN  Name

PIN  number

DESCRIPTION

CONTROL (C) Pin

1

Error amplifier and feedback current input pin for duty cycle control. Internal shunt regulator connection to provide internal bias current during normal operation. It is also used as the connection point for the supply bypass and auto-restart/ compensation capacitor.

LINE-SENSE (L) Pin: (Y, R or F package only)

2

Input pin for OV, UV, line feed forward with DCMAX reduction, remote ON/OFF and synchronization. A connection to SOURCE pin disables all functions on this pin.

EXTERNAL CURRENT LIMIT (X) Pin: (Y, R or F package only)

3

Input pin for external current limit adjustment, remote ON/OFF, and synchronization. A connection to SOURCE pin disables all functions on this pin.

SOURCE (S) Pin

4

Output MOSFET source connection for high voltage power return. Primary side control circuit common and reference point.

FREQUENCY (F) Pin: (Y, R or F package only)

5

Input pin for selecting switching frequency: 132 kHz if connected to SOURCE pin and 66 kHz if connected to CONTROL pin. The switching frequency is internally set for fixed 132 kHz operation in P and G packages.

DRAIN (D) Pin

7

High voltage power MOSFET drain output. The internal start-up bias current is drawn from this pin through a switched high-voltage current source. Internal current limit sense point for drain current.



Ⅲ. TOP245YN 3D Model

1.TOP245YN Symbol 


2. TOP245YN Footprint



3. TOP245YN 3D Model
 

Ⅳ. TOP245YN Specifications

TYPE

DESCRIPTION

Category

Integrated Circuits (ICs)

Power Management (PMIC)

AC DC Converters, Offline Switches

mfr

Power Integrations

Series

TOPSwitch®-GX

Package

Tube

Product Status

Not For New Designs

Output Isolation

Isolated

Internal Switch(s)

Yes

Voltage-Breakdown

700V

Topology

Flyback

Voltage - Supply (Vcc/Vdd)

-

Duty Cycle

66.50%

Frequency-Switching

66kHz ~ 132kHz

Power (Watts)

85W

Fault Protection

Current Limiting, Over Temperature, Over Voltage

Control Features

Frequency Control

Operating Temperature

-40°C ~ 150°C (TJ)

Package/Case

TO-220-7 Formed Leads, 6 Leads

Supplier Device Package

TO-220-7C

Mounting Type

Through Hole

Base Product Number

TOP245



Ⅴ. TOP245YN Feature

• Extended power range for higher power applications 
• No heatsink required up to 34 W using P/G packages 
• Features eliminate or reduce cost of external components 
• Fully integrated soft-start for minimum stress/overshoot 
• Externally programmable accurate current limit 
• Wider duty cycle for more power, smaller input capacitor 
• Separate line sense and current limit pins on Y/R/F packages 
• Line under-voltage (UV) detection: no turn off glitches 
• Line overvoltage (OV) shutdown extends line surge limit 
• Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line 
• Frequency jittering reduces EMI and EMI filtering costs 
• Regulates to zero load without dummy loading 
• 132 kHz frequency reduces transformer/power supply size 
• Half frequency option in Y/R/F packages for video applications 
• Hysteretic thermal shutdown for automatic fault recovery 
• Large thermal hysteresis prevents PC board overheating


Ⅵ. TOP245YN Application Examples

• A High Efficiency, 30 W, Universal Input Power Supply
• A High Efficiency, Enclosed, 70 W, Universal Adapter Supply
• A High Efficiency, 250 W, 250-380 VDC Input Power Supply
• Multiple Output, 60 W, 185-265 VAC Input Power Supply
• Processor Controlled Supply Turn On/Off


Ⅶ. TOP245YN Package Information




Ⅷ. TOP245YN Datasheet



标签:

常见问题解答

1、1.What is the TOP245YN used for?
The TOP245YN is used for designing power supplies and converters. It provides a compact and efficient solution for various off-line power applications, such as AC/DC power supplies, battery chargers, and LED drivers.
2、2.What are the key features of the TOP245YN?
The TOP245YN typically offers features like a built-in high-voltage MOSFET, pulse-width modulation (PWM) control, under-voltage lockout (UVLO), over-temperature protection, and other fault protection mechanisms.
3、3.How do I use the TOP245YN in a power supply circuit?
Using the TOP245YN in a circuit typically involves connecting it to the input voltage source, designing feedback and compensation components, and configuring the output voltage and current. The datasheet for the TOP245YN will provide detailed application notes and recommended circuit configurations.
4、What is the typical voltage and current ratings for the TOP245YN?
The voltage and current ratings may vary depending on the specific model or variant of the TOP245YN. You should consult the datasheet for the exact specifications of the particular device you plan to use.

留下评论

相关文章

热门零部件

#10FWZ

#10FWZ

#292KNAS-T1028Z

#292KNAS-T1028Z

#458PT-1566=P3

#458PT-1566=P3

#458PT-1720=P3

#458PT-1720=P3

#458PT-2002=P3

#458PT-2002=P3

#458PT-2078=P3

#458PT-2078=P3

#617PT-2038=P3

#617PT-2038=P3

#617PT-2270=P3

#617PT-2270=P3

热门标签

PMIC Audio Products Logic Interface capacitors linear controllers embedded Line Protection drivers amplifiers Distribution Backups wireless modules memory converters Battery Products sensors filters relays Switches distribution analog Clock timing voltage diodes speakers Batteries Rechargeable battery regulators Fiber Optic Cables Cable Assemblies routers microcontroller Backups audio Magnetics - Transformer Inductor Components cables Electric Double Layer Capacitors (EDLC) Supercapa inductors transformer optoelectronics potentiometer resistors switching management special digital purpose signal Discrete Semiconductor Ceramic Capacitors semiconductor cable Alarms equipment resonators oscillators crystals kits accessories isolators motors RF Transformers monitors comparators specialized programmable microcontrollers FPGAs Data Acquisition application specific gates inverters Buffers Transceivers dividers Sensor decoders microprocessors microprocessor DC video circuit protection microphones PCB Integrated Circuits (ICs) PMIC - Lighting Memory Cards SSDs HDDs Wires Tantalum Capacitors Transducers LEDs Battery Chargers 4G Ballast Controllers Vacuum Tubes Transistors - Bipolar (BJT) - Single counter integrated circuits Guitar Parts Buzzer Elements transducers circuit Computer Equipment Piezo Benders boxes Magnetics enclosures racks Buzzers wires and Sirens wire Buzzers and Sirens inductor components connectors interconnects CR2450 LR44 Embedded Computers TXS0108EPWR fans SS14 thermal UA741CP RC4558P hardware TNY268PN fasteners MJE2955T UC3842AN TOP245YN coils SN6505BDBVR chokes BD139 controls ATMEGA328-PU automation NE5532P identification barriers signs labels protection inductor educational networking resistor powersupply power supply prototyping fabrication desoldering soldering ESD static Tapes adhesives materials Test measurement Tools Uncategorized Specialized ICs voltage Regulators contro thermal Management motor laser full half switchers batteries translators shift latches flip flops voice playback serializers deserializers active synthesis PLDs clocks delay lines reference supervisors PoE correction lighting ballast hot swap energy metering specialty parity generators checkers FIFOs multipliers instrumentation UARTs terminators capacitive touch Modems ICs Encoders DSP Data acquisition front end timers synthesizers frequency regulator controller regula RMS power OR ideal LED gate display chargers configuration proms universal bus functions multiplexers multivibrators counters processing amps telecom repeaters splitters detector interfaces I/O expanders receivers CODECs system SoC CPLDs Complex amplifier IF RFID Oscillator Externally excited oscillator fuses switchs transistors shunt thyristor Oscillators Resonators Ballast Controllers Coils Chokes RF Filters RF/IF and RFID RF Amplifiers Battery Packs SAW Filters Mica and PTFE Capacitors Accessories Piezo Benders 1 222 sdsd ballasts starter SSD HDD Modules

热门博客