ALTAIR04-900:Off-line all-primary-sensing switching regulator

The ALTAIR04-900 is a high voltage all-primary-sensing switcher, operating directly from the rectified mains with minimum external parts. It combines a high-performance low voltage PWM controller chip and a 900 V avalanche-rugged power section in the same package.

Key Features

  • Optoless primary side constant voltage operations
  • Adjustable and mains-independent maximum output current for safe operations during overload/short-circuit conditions
  • 900 V avalanche-rugged internal power section
  • Quasi-resonant valley switching operation
  • Low standby consumption
  • Overcurrent protection against transformer saturation and secondary diode short-circuit
  • SO16N package
Product Specifications
DescriptionVersionSize
DS7028: Off-line all-primary-sensing switching regulator3.0535 KB
Application Notes
DescriptionVersionSize
AN4154: Power supply for energy meter and power line modem3.01 MB
AN3290: Reference design for double output SMPS for power line modem applications using ALTAIR04-900 primary controller1.03 MB
HW Model & CAD Libraries
DescriptionVersionSize
altair04-900 spice models31 KB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-ISA133V1Double output SMPS for power line applications using the ALTAIR04-900 primary controller
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityRDS(on) (Ω) (max)Transistor Breakdown Voltage (V) (min)Drain Current (A) (nom)ECCN (EU)ECCN (US)Country of Origin
ALTAIR04-900SO-16Tube0.6741000--0.7NECEAR99CHINA
ALTAIR04-900TRSO-16Tape And Reel0.621000--0.7NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ALTAIR04-900SO-16IndustrialEcopack2
ALTAIR04-900TRSO-16IndustrialEcopack2
Off-line all-primary-sensing switching regulator ALTAIR04-900
circuit_diagram_18211_thumbnail.png ALTAIR04-900
Power supply for energy meter and power line modem ALTAIR04-900
Reference design for double output SMPS for power line modem applications using ALTAIR04-900 primary controller ALTAIR04-900
Reference design for double output SMPS for power line modem applications using ALTAIR04-900 primary controller ALTAIR04-900
Very low drop voltage regulators with inhibit KFXX