Overview
Sample & Buy
Solutions
Resources
Tools & Software
Quality & Reliability
eDesignSuite
Get Started
Partner products
Sales Briefcase
  • 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

Download Download

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 07.2020
      7.12 MB
      PDF
      VIPerPlus - Bring a Plus to your SMPS design 05.2020
      481.54 KB
      PDF

      Power Management Guide

      VIPerPlus - Bring a Plus to your SMPS design

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
More info
min
max
ALTAIR04-900 Available at 4 distributors

Distributor availability ofALTAIR04-900

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 647 1 Order Now
ARROW EUROPE 2290 0 Order Now
MOUSER WORLDWIDE 1714 1 Order Now
ANGLIA Live EUROPE 948 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

647

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2290

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1714

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

948

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now
Active
EAR99 NEC Tube SO-16 - - 0.408 / 1k
MORE INFO

RDS(on) (Ω) (max):

-

Transistor Breakdown Voltage (V) (min):

-

Drain Current (A) (nom):

0.7

Country of Origin:

THAILAND

ALTAIR04-900TR Available at 4 distributors

Distributor availability ofALTAIR04-900TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1900 1 Order Now
FUTURE WORLDWIDE 17500 2500 Order Now
MOUSER WORLDWIDE 3073 1 Order Now
Farnell Element14 EUROPE 4452 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

1900

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

17500

Min.Order

2500

Region

WORLDWIDE Order Now

MOUSER

Stock

3073

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4452

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Sample & Buy Buy now
Active
EAR99 NEC Tape And Reel SO-16 - - 0.408 / 1k
MORE INFO

RDS(on) (Ω) (max):

-

Transistor Breakdown Voltage (V) (min):

-

Drain Current (A) (nom):

0.7

Country of Origin:

THAILAND

ALTAIR04-900

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.408 / 1k

Distributor availability ofALTAIR04-900

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 647 1 Order Now
ARROW EUROPE 2290 0 Order Now
MOUSER WORLDWIDE 1714 1 Order Now
ANGLIA Live EUROPE 948 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

647

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2290

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1714

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

948

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.408 / 1k

RDS(on) (Ω) (max)

-

Transistor Breakdown Voltage (V) (min)

-

Drain Current (A) (nom)

0.7

Country of Origin

THAILAND

ALTAIR04-900TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.408 / 1k

Distributor availability ofALTAIR04-900TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1900 1 Order Now
FUTURE WORLDWIDE 17500 2500 Order Now
MOUSER WORLDWIDE 3073 1 Order Now
Farnell Element14 EUROPE 4452 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

1900

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

17500

Min.Order

2500

Region

WORLDWIDE Order Now

MOUSER

Stock

3073

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4452

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.408 / 1k

RDS(on) (Ω) (max)

-

Transistor Breakdown Voltage (V) (min)

-

Drain Current (A) (nom)

0.7

Country of Origin

THAILAND

(*) 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