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
-
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
-
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
-
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)
Resources