Datasheet > STNRG328S

STNRG328S

更新时间： 2023-12-20 18:44:37

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
36页	1000K
描述
Digital controller for STC/HSTC topologies

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STNRG328S 数据手册

STNRG328S

Datasheet

Digital controller for STC/HSTC topologies

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

Product status link

STNRG328S

Data memory: 1 Kbyte true data EEPROM; data retention: 20 years at 55°C

after 1000 cycles at 85 °C

Product label

RAM: 6 Kbytes

•

Operating temperature: -40 °C up to 105 °C

Package: VFQFPN32 5x5 mm

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.

DS13809 - Rev 1 - September 2021

www.st.com

For further information contact your local STMicroelectronics sales office.

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