Product overview
Description
The TS4431 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS). It integrates a 1.224V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4431’s operating mode is similar to the well-known standard voltage reference, the TL431. It maintains the desired feedback voltage at the REF pin in a closed loop configuration by sinking a current proportional to the error voltage at the REF pin.TS4431 features an open collector transistor with an ultra-low saturation voltage, allowing it to be used in series with the optocoupler in an SMPS architecture to regulate low voltage SMPS.
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All features
- Internal 1.224V ±0.5% precision
- Low current consumption: 250 µA
- Low output saturation voltage 75 mV max between SINK and GND
- 100ppm/˚C temperature coefficient
- Industrial temperature range: -40 to +85˚C
Featured Videos
All resources
| Resource title | Latest update |
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Product Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Sep 2016 | 19 Sep 2016 |
Selection Guides (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 16 Apr 2021 | 16 Apr 2021 |
Brochures (2)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 02 Feb 2021 | 02 Feb 2021 | |||
| 07 Apr 2021 | 07 Apr 2021 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - TS4431
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| TS4431AILT | Active | SOT23-5L | Industrial | Ecopack2 | |
| TS4431ILT | Active | SOT23-5L | Industrial | Ecopack2 | |
TS4431AILT
Package:
SOT23-5LMaterial Declaration**:
TS4431ILT
Package:
SOT23-5LMaterial Declaration**:
(**) 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.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| TS4431AILT | 1 distributors | Buy Direct | Active | EAR99 | NEC | Tape And Reel | SOT23-5L | -40 | 85 | MALAYSIA | 0.32 / 1k | |
| TS4431ILT | 1 distributors | Buy Direct | Active | EAR99 | NEC | Tape And Reel | SOT23-5L | -40 | 85 | MALAYSIA | 0.305 / 1k | |
(*) 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
