STNRG328S

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Digital controller for STC/HSTC topologies

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Product overview

Description

The STNRG328S is a digital controller for STC/HSTC open loop resonant converter from STMicroelectronics. It performs a power conversion from an input voltage in a typical range of 40 V to 60 V to an output voltage with a programmable conversion ratio from 2:1 to 10:1 with fixed duty cycle and programmable frequency from 140 kHz to 300 kHz. It’s able to deliver an output power in the range from 500 W up to 2 KW with very high efficiency in wide load range and with efficiency peak of 98.4% .
A State Machine Event Driven (SMED) implements the control strategy to ensure all the STC/HSTC control functions, in particular the ZCD (Zero Current Detection) feature allows a management of the deadtime and the switching frequency in order to achieve the perfect LC resonance and top efficiency independently from the external component variations.
The STNRG328S firmware is specifically designed to program the SMED and implement the control strategy.
  • All features

    • Digital controller for STC/HSTC topologies
    • Support wide conversion ratio from 2:1 to 10:1 to provide several Vout
    • State Machine Event Driven (SMED) to implement key control features:
      • Current limit in combination with Hot swap controller
      • Operating input voltage window
      • Conversion ratio control
      • PWM frequency and deadtime management to guarantee ZCD function
      • Soft-start control
      • Driver management
      • Temperature control
    • Typical application: Server DC/DC intermediate bus generation from 40 V to 60 V input voltage, 200 W to 2 kW output power range
    • Peripherals
      • 10-bit ADC
      • UART interface
      • I2C master fast/slow speed rate
      • GPIOs
    • Memory
      • Flash and EEPROM with read-while-write (RWW) and Error Correction Code (ECC)
      • Program memory: 32 Kbytes Flash; data retention: 20 years at 55 °C after 1000 cycles at 55 °C
      • Data memory: 1 Kbyte true data EEPROM; data retention: 20 years at 55°C after 1000 cycles at 85 °C
      • RAM: 6 Kbytes
    • Operating temperature: -40 °C up to 105 °C
    • Package: VFQFPN32 5x5 mm

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STSW-STC

      Active

      Turnkey firmware to program STNRG328S for switched tank converters (STC) / hybrid switched tank converters (HSTC) topologies

      Evaluation Tool Software ST
      STSW-STC

      Description:

      Turnkey firmware to program STNRG328S for switched tank converters (STC) / hybrid switched tank converters (HSTC) topologies

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STNRG328S

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STNRG328S
Active
VFQFPN 32 5x5x1.0 mm Industrial Ecopack2
STNRG328STR
Active
VFQFPN 32 5x5x1.0 mm Industrial Ecopack2

STNRG328S

Package:

VFQFPN 32 5x5x1.0 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 32 5x5x1.0 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STNRG328STR

Package:

VFQFPN 32 5x5x1.0 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 32 5x5x1.0 mm

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.

Sample & Buy

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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
STNRG328S Available at 4 distributors

Distributor availability ofSTNRG328S

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 490 1 Buy from Distributor
RS COMPONENTS EUROPE 500 1 Buy from Distributor
MOUSER WORLDWIDE 500 1 Buy from Distributor
Farnell Element14 EUROPE 500 1 Buy from Distributor

Distributor reported inventory date: 2022-08-09

Distributor Name

DIGIKEY

Stock

490

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

500

Min.Order

1

MOUSER

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

500

Min.Order

1

Distributor reported inventory date: 2022-08-09

Active
3A991.a.2 NEC Tray VFQFPN 32 5x5x1.0 mm -40 105 CHINA
STNRG328STR No availability of distributors reported, please contact our sales office
Active
3A991.a.2 NEC Tape and Reel VFQFPN 32 5x5x1.0 mm -40 105 CHINA

STNRG328S Active

Package:
VFQFPN 32 5x5x1.0 mm
ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STNRG328S

ECCN (EU):

NEC

Packing Type:

Tray

Operating Temperature (°C)

Min:

-40

Max:

105

Country of Origin:

CHINA

Distributor availability ofSTNRG328S

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 490 1 Buy from Distributor
RS COMPONENTS EUROPE 500 1 Buy from Distributor
MOUSER WORLDWIDE 500 1 Buy from Distributor
Farnell Element14 EUROPE 500 1 Buy from Distributor

Distributor reported inventory date: 2022-08-09

Distributor Name

DIGIKEY

Stock

490

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

500

Min.Order

1

MOUSER

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

500

Min.Order

1

Distributor reported inventory date: 2022-08-09

STNRG328STR Active

Package:
VFQFPN 32 5x5x1.0 mm
ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STNRG328STR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

105

Country of Origin:

CHINA

No availability of distributors reported, please contact our sales office
Swipe or click the button to explore more details Don't show this again

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