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STNRG devices are a part of the STNRG family of STMicroelectronics® digital devices designed for advanced power conversion applications.
The STNRG improves the design of the successful STLUX™ family, now integrated in a wide range of LED driver architectures, to support industrial power conversion applications such as PFC+LLC, interleaved LC DC/DC, interleaved PFC for smart power supplies as well as the full bridge for pilot line drivers for electric vehicles.
Key Features
- Up to 6 programmable PWM generators (SMED - “State Machine Event Driven”)
- 10 ns event detection and reaction
- Max.1.3 ns PWM resolution
- Single, coupled and two coupled operational modes
- Up to 3 internal/external events per SMED
- 4 analog comparators
- 4 internal 4-bit references
- Up to 4 external references
- Less than 50 ns propagation time
- Continuous comparison cycle
- Configurable hysteresis voltage levels
- ADCs (up to 8 channels)
- 10-bit precision, with operational amplifier to extend resolution to 12-bit equivalent
- Sequencer functionality
- Input impedance: 1 MΩ
- Configurable gain value: x1 and x4
- Integrated microcontroller
- Advanced STM8® core with Harvard architecture and 3-stage pipeline
- Max. fCPU: 16 MHz
- Memories
- Flash and E2PROM with read while write (RWW) and error correction code (ECC)
- Program memory: 32 Kbytes Flash; data retention 15 years at 85 °C after 10 kcycles at 25 °C
- Data memory: 1 Kbyte true data E2PROM; data retention:15 years at 85 °C after 100 kcycles at 85 °C
- RAM: 6 Kbytes
- Clock management
- Internal 96 MHz PLL
- Low power oscillator circuit for external crystal resonator or direct clock input
- Internal, user-trimmable 16 MHz RC and low power 153.6 kHz RC oscillators
- Clock security system with clock monitor
- Basic peripherals
- System, auxiliary and basic timers
- IWDG/WWDG watchdog, AWU, ITC
- Reset and supply management
- Multiple low power modes (wait, slow, auto- wakeup, Halt) with user definable clock gating
- Low consumption power-on and power- down reset
- I/O
- Multifunction bidirectional GPIO with highly robust design, immune against current injection
- Fast digital input DIGIN, with configurable pull-up
- Communication interfaces
- UART asynchronous with SW flow control and bootloader support
- I2C master/slave fast-slow speed rate
- Operating temperature: -40 °C up to 105 °C.
- Up to 6 programmable PWM generators (SMED - “State Machine Event Driven”)
Featured Videos
Development Tools
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Picture Part number Manufacturer Description 
ST-LINK/V2 ST ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 Part NumberST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32
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Picture Part number Manufacturer Description STSW-STLUXLIB02 ST STLUX STNRG devices library source package STSW-STLUXSMED02 ST SMED configuration rev. 2 for STLUX and STNRG family Part NumberSTLUX STNRG devices library source package
SMED configuration rev. 2 for STLUX and STNRG family
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Evaluation Tools
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Picture Part number Manufacturer Description 
EVLSTNRG-170W -- 170W SMPS with digitally controlled PFC and resonant LLC stage using STNRG388A EVLSTNRG-1KW -- 1 kW SMPS digitally controlled multi-phase interleaved converter using STNRG388A 
STDES-VIENNARECT ST 15 kW, three-phase Vienna rectifier with low cost mixed-signal control for power factor correction 
STEVAL-ISA164V1 ST STNRG388A evaluation board Part Number170W SMPS with digitally controlled PFC and resonant LLC stage using STNRG388A
1 kW SMPS digitally controlled multi-phase interleaved converter using STNRG388A
15 kW, three-phase Vienna rectifier with low cost mixed-signal control for power factor correction
STNRG388A evaluation board
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STNRG388A |
Active
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TSSOP 38 | Industrial | Ecopack2 | |
| STNRG388ATR |
Active
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TSSOP 38 | Industrial | 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
| 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 | |||||||||||
| STNRG388ATR | 1 distributors | Sample & Buy Buy now |
Active
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3A991A2 | NEC | Tape And Reel | TSSOP 38 | -40 | 105 | PHILIPPINES | 2.75 / 1k | |
| STNRG388A | No availability of distributors reported, please contact our sales office | Buy now |
Active
|
3A991A2 | NEC | Tube | TSSOP 38 | -40 | 105 | PHILIPPINES | 2.75 / 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
