Application
• Auxiliary power supplies for automotive HVAC, climate control,
DC/DC converter, and onboard charger
• Emergency power supply for traction inverter
Description
The LinkSwitch™-TN2 family of ICs for automotive power supplies
provide significant reduction in component count compared to
traditional discrete solutions making it highly reliable. The device family
supports buck, buck-boost and flyback converter topologies. Each
device incorporates a 750 V power MOSFET, oscillator, On/Off control, a
high-voltage switched current source for self-biasing, frequency jittering,
fast (cycle-by-cycle) current limit, hysteretic thermal shutdown, and
output and overvoltage protection circuitry onto a monolithic IC.
LinkSwitch-TN2 ICs consume very little current in standby resulting in
power supply designs that meet <50 mW no-load input at 400 VDC
input. A full suite of protection features enable safe and reliable power
supplies protecting the device and the system against input and output
overvoltage faults, device over-temperature faults, lost regulation, and
power supply output overload or short-circuit faults.