Off-line all-primary-sensing switching regulator

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  • 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

Circuit Diagram

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Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
RDS(on) (Ω) (max)
Transistor Breakdown Voltage (V) (min)
Drain Current (A) (nom)
More info
Order from Distributors
Order from ST
ALTAIR04-900 SO-16 Tube
Active
0.408 1000 - - 0.7
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofALTAIR04-900

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3733 1 Order Now
ARROW EUROPE 2350 0 Order Now
MOUSER WORLDWIDE 2328 1 Order Now
ANGLIA Live EUROPE 948 1 Order Now

Distributor reported inventory date: 2019-10-14

Distributor Name

DIGIKEY

Stock

3733

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2350

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2328

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

948

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-14

Buy now
ALTAIR04-900TR SO-16 Tape And Reel
Active
0.408 1000 - - 0.7
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofALTAIR04-900TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1097 1 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW AMERICA 10000 2500 Order Now
MOUSER WORLDWIDE 8611 1 Order Now
Farnell Element14 EUROPE 4498 1 Order Now

Distributor reported inventory date: 2019-10-14

Distributor Name

DIGIKEY

Stock

1097

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

8611

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4498

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-14

Get sample

ALTAIR04-900

Package

SO-16

Packing Type

Tube

Unit Price (US$)

0.408*

Distributor availability ofALTAIR04-900

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3733 1 Order Now
ARROW EUROPE 2350 0 Order Now
MOUSER WORLDWIDE 2328 1 Order Now
ANGLIA Live EUROPE 948 1 Order Now

Distributor reported inventory date: 2019-10-14

Distributor Name

DIGIKEY

Stock

3733

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2350

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2328

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

948

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-14

Marketing Status

Active

Unit Price (US$)

0.408

Quantity

1000

RDS(on) (Ω) (max)

-

Transistor Breakdown Voltage (V) (min)

-

Drain Current (A) (nom)

0.7

ECCN (US)

EAR99

Country of Origin

CHINA

ALTAIR04-900TR

Package

SO-16

Packing Type

Tape And Reel

Unit Price (US$)

0.408*

Distributor availability ofALTAIR04-900TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1097 1 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW AMERICA 10000 2500 Order Now
MOUSER WORLDWIDE 8611 1 Order Now
Farnell Element14 EUROPE 4498 1 Order Now

Distributor reported inventory date: 2019-10-14

Distributor Name

DIGIKEY

Stock

1097

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

8611

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4498

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-14

Marketing Status

Active

Unit Price (US$)

0.408

Quantity

1000

RDS(on) (Ω) (max)

-

Transistor Breakdown Voltage (V) (min)

-

Drain Current (A) (nom)

0.7

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Recommended for you

Related Applications

Energy Generation and Distribution

Metering

Evaluation Tools

    • Part Number

      Double output SMPS for power line applications using the ALTAIR04-900 primary controller

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS7028
      Off-line all-primary-sensing switching regulator
      3.0
      535.59 KB
      PDF
      DS7028

      Off-line all-primary-sensing switching regulator

    • Description Version Size Action
      AN4154
      Power supply for energy meter and power line modem
      3.0
      1.32 MB
      PDF
      AN3290
      Reference design for double output SMPS for power line modem applications using ALTAIR04-900 primary controller
      1.0
      3.14 MB
      PDF
      AN4154

      Power supply for energy meter and power line modem

      AN3290

      Reference design for double output SMPS for power line modem applications using ALTAIR04-900 primary controller

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      altair04-900 spice models
      31.34 KB
      ZIP

      altair04-900 spice models

Publications and Collaterals

    • Description Version Size Action
      Power Management Guide 06.2019
      5.5 MB
      PDF

      Power Management Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ALTAIR04-900
Active
SO-16 Industrial Ecopack2
ALTAIR04-900TR
Active
SO-16 Industrial Ecopack2

ALTAIR04-900

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ALTAIR04-900TR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

Battery Charger

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.