TOPSwitch-JX

Integrated Off-Line Switcher with EcoSmart Technology for Highly Efficient Power Supplies

Typical Flyback Application

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TOPSwitch-JX Data Sheet

Integrated Off-Line Switcher with EcoSmart Technology for Highly Efficient Power Supplies

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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.

Product Highlights

EcoSmart^® - Energy Efficient

Energy efficient over entire load range
No-load consumption below 70 mW at 230 VAC achievable
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 EMI 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 overcurrent protection (OCP)
- Output overload 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 thermal shutdown with large hysteresis (OTP)

Advanced Package Options

eDIP^™-12 package:
- Low profile horizontal orientation for ultra-slim designs
- Heat transfer to both PCB and heat sink
- Optional external heat sink provides thermal impedance equivalent to a TO-220
eSIP^®-7C package:
- Vertical orientation for minimum PCB footprint
- Simple heat sink mounting using clip provides thermal impedance equivalent to a TO-220
eSOP^®-12 package:
- 66 W universal input output power capability
- Low profile surface mounted for ultra-slim designs
- Heat transfer to PCB via exposed pad and SOURCE pins
- Supports wave or reflow soldering

Applications

Power Table

Output Power (Watts)
PRODUCT⁵	Metal Heat Sink¹
	230 VAC ±15%⁴		85-265 VAC
	Adapt.²	Open³ Frame	Adapt.²	Open³ Frame
TOP264VG/EG	30 W	62 W	20 W	43 W
TOP265VG/EG	40 W	81 W	26 W	57 W
TOP266VG/EG	60 W	119 W	40 W	86 W
TOP267VG/EG	85 W	137 W	55 W	103 W
TOP268VG/EG	105 W	148 W	70 W	112 W
TOP269VG/EG	128 W	162 W	80 W	120 W
TOP270VG/EG	147 W	190 W	93 W	140 W
TOP271VG/EG	177 W	244 W	118 W	177 W
PRODUCT⁵	PCB Copper Area¹
	230 VAC ±15%⁴		85-265 VAC
	Adapt.²	Open³ Frame	Adapt.²	Open³ Frame
TOP264VG	21 W	34 W	12 W	22.5 W
TOP264KG	30 W	49 W	16 W	30 W
TOP265VG	22.5 W	36 W	15 W	25 W
TOP265KG	33 W	53 W	20 W	34 W
TOP266VG	24 W	39 W	17 W	28.5 W
TOP266KG	36 W	58 W	23 W	39 W
TOP267VG	27.5 W	44 W	19 W	32 W
TOP267KG	40 W	65 W	26 W	45 W
TOP268VG	30 W	48 W	21.5 W	36 W
TOP268KG	46 W	73 W	30 W	50 W
TOP269VG	32 W	51 W	22.5 W	37.5 W
TOP269KG	50 W	81 W	33 W	55 W
TOP270VG	34 W	55 W	24.5 W	41 W
TOP270KG	56 W	91 W	36 W	60 W
TOP271VG	36 W	59 W	26 W	43 W
TOP271KG	63 W	102 W	40 W	66 W

Notes:

See Key Application Considerations section for more details.
Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient temperature.
Minimum continuous power in an open frame design at +50 °C ambient temperature.
230 VAC or 110/115 VAC with doubler.
Packages:E: eSIP-7C, V: eDIP-12, K: eSOP-12. See part ordering information.