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Description
Integrated Off-Line Switcher with EcoSmart Technology for Highly Efficient Power Supplies
All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
Product Highlights
EcoSmart - Energy Efficient
● Energy efficient over entire load range
● No-load consumption below 100 mW at 265 VAC
● Up to 750 mW standby output power for 1 W input at 230 VAC
High Design Flexibility for Low System Cost
● Multi-mode PWM control maximizes efficiency at all loads
● 132 kHz operation reduces transformer and power supply size
- 66 kHz option for highest efficiency requirements
● Accurate programmable current limit
● Optimized line feed-forward for line ripple rejection
● Frequency jittering reduces EMl filter cost
● Fully integrated soft-start for minimum startup stress
● 725 V rated MOSFET
- Simplifies meeting design derating requirements
Extensive Protection Features
● Auto-restart limits power delivery to <3% during overload faults
- Output short-circuit protection (SCP)
- Output over-cument protection (OCP)
- Output overoad protection (OPP)
● Output overvoltage protection (OVP)
- User programmable for hysteretic/latching shutdown
- Simple fast AC reset
- Primary or secondary sensed
● Line undervoltage (UV) detection prevents turn-off glitches
● Line overvoltage (OV)shutdown extends line surge withstand
● Accurate themmal shutdown with large hysteresis (OTP)
Advanced Package Options
● eDlPTM-12 package:
- Low profile horizontal orientation for ultra-slim designs
- Heat transfer to both PCB and heat sink
- Optional extemal heat sink provides thermal impedance equivalent to aTO-220
● eSIP -7C package:
- Vertical orientation for minimum PCB footprint
- Simple heat sink mounting using clip provides thermal impedance equivalent to a TO-220
● Extended creepage to DRAIN pin
● Heat sink is connected to SOURCE for low EMI
Description
TOPSwitch-JX cost effectively incorporates a 725 V power MOSFET, high voltage switched current source, multi-mode PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $3.12975 | US $2.81678 | US $2.81678 |
| ≥5: | US $2.08650 | US $1.87785 | US $9.38925 |
| ≥10: | US $1.87785 | US $1.69007 | US $16.90070 |
| ≥20: | US $1.82569 | US $1.64312 | US $32.86240 |
| ≥50: | US $1.77353 | US $1.59617 | US $79.80850 |
| ≥100: | US $1.72136 | US $1.54923 | US $154.92300 |
| ≥200: | US $1.66920 | US $1.50228 | US $300.45600 |
| ≥500: | US $1.64834 | US $1.48350 | US $741.75000 |
| ≥1000: | US $1.61704 | US $1.45533 | US $1455.33000 |
Substitute (equivalent) Product
| Substitute Product | Brief Description |
|---|---|
| LNK605DG | Low Power Off-Line Switcher with EcoSmart technology, ideal for low power applications. |
| NCP1230D65R2G | High Voltage Switch Mode Controller for isolated and non-isolated off-line switched mode power supplies. |
| ICE2QS03G | Second-generation Quasi-Resonant PWM controller for low-power applications. |
| UC3845DW | High-speed current mode PWM controller, suitable for switch-mode power supplies. |
| VIPER22ADIP-E | Offline high voltage converter for medium and high-power applications. |
Note: Substitute selection should always be verified for system compatibility.
Product Usage
The TOP268EG is an integrated circuit from Power Integrations, belonging to the TOPSwitch-HX family of high efficiency, off-line switcher ICs. It is designed to facilitate the development of energy-efficient and cost-effective switch-mode power supplies (SMPS). Here are some typical applications and circuits that might use the TOP268EG:
AC-DC Power Supplies: The TOP268EG is well-suited for AC-DC power supplies used in many electronic devices, ranging from household appliances to industrial equipment. It can convert high-voltage AC mains to low-voltage DC needed for the operation of electronic circuits.
Battery Chargers: It can be used in the design of battery chargers for various types of batteries, including lithium-ion, nickel-cadmium, and lead-acid batteries. Its high efficiency and minimal external component count make it a good choice for compact and efficient chargers.
Standby Power Supplies: Many electronic devices such as televisions, set-top boxes, and computer peripherals require standby power supplies that consume minimal power when the device is not in active use. The TOP268EG is optimized for low standby power consumption.
LED Drivers: The IC can also be used in LED driver circuits which provide a constant current to power LED lighting. With proper design, it ensures efficient energy use and reliable operation of LED lights.
Auxiliary Power Supplies: In complex electronic systems, the TOP268EG can be used to create auxiliary power supplies that power specific sections of the system, ensuring efficiency and isolation where necessary.
Uninterruptible Power Supplies (UPS): For UPS systems, the IC can be employed in the power conversion sections to maintain efficient and reliable operation during both normal and backup power modes.
A basic flyback converter circuit using the TOP268EG typically includes:
The TOP268EG is versatile and efficient, making it ideal for a wide range of power supply designs, especially where energy efficiency and compact size are critical. Its integration of multiple functions into a single IC helps simplify the design process and improve reliability.
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| Flag | Country | Estimated Delivery Time | Minimum First Weight Cost | ||
|---|---|---|---|---|---|
| Express | Standard Shipping | Express (0.5kg) | Standard Shipping (0.05kg) | ||
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Returns are normally accepted when completed within 90 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
TOP268EG
TOP268EG has several brands around the world that may have alternate names for TOP268EG due to regional differences or acquisition. TOP268EG may also be known as the following names:
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