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Overview
| Topology | Other Topology |
| IC revision | 3 |
Description
ALTAIR04-900 is a high-voltage all-primary-sensing switcher intended for 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.
Features
- Primary side constant voltage operations with no optocoupler
- Adjustable and main-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
- SO16 package
Typical applications
- SMPS for energy metering
- AC-DC adapters
- Auxiliary power supplies for 3-phase input industrial systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(A) | VOut2(V) | IOut2(A) | Vaux(V) | fswitch(kHz) | L(mH) | NPRI : NSEC : NAUX | Size | IR(A) | L1(mH) | RDC max.(Ω) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-OLSTM Offline Flyback Transformers, 88 - 265 V (AC), 4.5 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLSTM Offline Flyback Transformers | Input Voltage 88 - 265 V (AC) | Output Voltage 14.5 V | Output Current 10.15 A | Output Voltage 213 V | Output Current 20.42 A | Auxiliary Voltage12 V | Switching Frequency 55 | Inductance2 mH | Turns Ratio27.67:1:3.17:1.22 | SizeEE16/7/5 | – | – | – | – | Insulation Test Voltage4500 V (AC) | – | Length18 mm | Width16.5 mm | Height18 mm | MountTHT | ||||
 | WE-LF Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LF Common Mode Power Line Choke | – | – | – | – | – | – | – | Inductance10 mH | – | SizeSV | Rated Current0.7 A | Inductance [1]10 mH | DC Resistance [1]0.55 Ω | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length18 mm | Width12.8 mm | Height19.8 mm | MountTHT |