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.
Key Features
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Energy efficient over entire load range
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No-load consumption below 70 mW at 230 VAC achievable
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Up to 750 mW standby output power for 1 W input at 230 VAC
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Multi-mode PWM control maximizes efficiency at all loads
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132 kHz operation reduces transformer and power supply size
- 66 kHz option for highest efficiency requirements
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Accurate programmable current limit
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Optimized line feed-forward for line ripple rejection
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Frequency jittering reduces EMI filter cost
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Fully integrated soft-start for minimum startup stress
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725 V rated MOSFET
- Simplifies meeting design derating requirements
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Auto-restart limits power delivery to <3% during overload faults
- Output short-circuit protection (SCP)
- Output overcurrent protection (OCP)
- Output overload protection (OPP)
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Output overvoltage protection (OVP)
- User programmable for hysteretic/latching shutdown
- Simple fast AC reset
- Primary or secondary sensed
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Line undervoltage (UV) detection prevents turn-off glitches
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Line overvoltage (OV) shutdown extends line surge withstand
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Accurate thermal shutdown with large hysteresis (OTP)
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