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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 | Product series | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | Vaux (V) | Vaux 1 (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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 760871431 | SPEC | 5 files | MID-OLSTM Offline Flyback Transformers for STMicroelectronics | 88 - 265 V (AC) | 4.5 | 0.15 | 13 | 0.42 | 12 | 12 | 55 | 2 | 27.67:1:3.17:1.22 | EE16/7/5 | – | – | – | – | 4500 | – | 18 | 16.5 | 18 | THT | ||
 | 7446121010 | SPEC | 8 files | WE-LF Common Mode Power Line Choke | – | – | – | – | – | – | – | – | 10 | – | SV | 0.7 | 10 | 0.55 | 250 | 1500 | MnZn | 18.5 | 13.5 | 20.5 | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 760871431 | SPEC | |
| 7446121010 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | Vaux (V) | Vaux 1 (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 |
|---|