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MSP430FR2155

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24 MHz MCU with 32KB FRAM, 4KB SRAM, comparator, 12-bit ADC, UART/SPI/I2C, timer

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MSP430FR2155

ACTIVE
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Product details

CPU MSP430 Frequency (MHz) 24 Flash memory (kByte) 32 RAM (kByte) 4 ADC type 12-bit SAR Features Real-time clock UART 2 Number of ADC channels 12 SPI 4 USB No Hardware accelerators 0 Operating temperature range (°C) -40 to 105 Rating Catalog Communication interface I2C, SPI, UART Operating system BareMetal (No OS), TI RTOS Nonvolatile memory (kByte) 32 Number of GPIOs 44 Number of I2Cs 2 Security Secure debug
CPU MSP430 Frequency (MHz) 24 Flash memory (kByte) 32 RAM (kByte) 4 ADC type 12-bit SAR Features Real-time clock UART 2 Number of ADC channels 12 SPI 4 USB No Hardware accelerators 0 Operating temperature range (°C) -40 to 105 Rating Catalog Communication interface I2C, SPI, UART Operating system BareMetal (No OS), TI RTOS Nonvolatile memory (kByte) 32 Number of GPIOs 44 Number of I2Cs 2 Security Secure debug
LQFP (PT) 48 81 mm² 9 x 9 TSSOP (DBT) 38 62.08 mm² 9.7 x 6.4 VQFN (RHA) 40 36 mm² 6 x 6 VQFN (RSM) 32 16 mm² 4 x 4
  • Embedded microcontroller
    • 16-bit RISC architecture up to 24 MHz
    • Extended temperature: –40°C to 105°C
    • Wide supply voltage range from 3.6 V down to 1.8 V (operational voltage is restricted by SVS levels, see VSVSH- and VSVSH+ in PMM, SVS and BOR)
  • Optimized low-power modes (at 3 V)
    • Active mode: 142 µA/MHz
    • Standby:
      • LPM3 with 32768-Hz crystal: 1.43 µA (with SVS enabled)
      • LPM3.5 with 32768-Hz crystal: 620 nA (with SVS enabled)
    • Shutdown (LPM4.5): 42 nA (with SVS disabled)
  • Low-power ferroelectric RAM (FRAM)
    • Up to 32KB of nonvolatile memory
    • Built-in error correction code (ECC)
    • Configurable write protection
    • Unified memory of program, constants, and storage
    • 1015 write cycle endurance
    • Radiation resistant and nonmagnetic
  • Ease of use
    • 20KB ROM library includes driver libraries and FFT libraries
  • High-performance analog
    • One 12-channel 12-bit analog-to-digital converter (ADC)
      • Internal shared reference (1.5, 2.0, or 2.5 V)
      • Sample-and-hold 200 ksps
    • Two enhanced comparators (eCOMP)
      • Integrated 6-bit digital-to-analog converter (DAC) as reference voltage
      • Programmable hysteresis
      • Configurable high-power and low-power modes
      • One with fast 100-ns response time
      • One with 1-µs response time with 1.5-µA low power
    • Four smart analog combo (SAC-L3) (MSP430FR235x devices only)
      • Supports General-Purpose Operational Amplifier (OA)
      • Rail-to-rail input and output
      • Multiple input selections
      • Configurable high-power and low-power modes
      • Configurable PGA mode supports
        • Noninverting mode: ×1, ×2, ×3, ×5, ×9, ×17, ×26, ×33
        • Inverting mode: ×1, ×2, ×4, ×8, ×16, ×25, ×32
      • Built-in 12-bit reference DAC for offset and bias settings
      • 12-bit voltage DAC mode with optional references
  • Intelligent digital peripherals
    • Three 16-bit timers with three capture/compare registers each (Timer_B3)
    • One 16-bit timer with seven capture/compare registers each (Timer_B7)
    • One 16-bit counter-only real-time clock counter (RTC)
    • 16-bit cyclic redundancy checker (CRC)
    • Interrupt compare controller (ICC) enabling nested hardware interrupts
    • 32-bit hardware multiplier (MPY32)
    • Manchester codec (MFM)
  • Enhanced serial communications
    • Two enhanced USCI_A (eUSCI_A) modules support UART, IrDA, and SPI
    • Two enhanced USCI_B (eUSCI_B) modules support SPI and I2C
  • Clock system (CS)
    • On-chip 32-kHz RC oscillator (REFO)
    • On-chip 24-MHz digitally controlled oscillator (DCO) with frequency locked loop (FLL)
      • ±1% accuracy with on-chip reference at room temperature
    • On-chip very low-frequency 10-kHz oscillator (VLO)
    • On-chip high-frequency modulation oscillator (MODOSC)
    • External 32-kHz crystal oscillator (LFXT)
    • External high-frequency crystal oscillator up to 24 MHz (HFXT)
    • Programmable MCLK prescaler of 1 to 128
    • SMCLK derived from MCLK with programmable prescaler of 1, 2, 4, or 8
  • General input/output and pin functionality
    • 44 I/Os on 48-pin package
    • 32 interrupt pins (P1, P2, P3, and P4) can wake MCU from LPMs
  • Development tools and software (also see Tools and Software)
  • Family members (also see Device Comparison)
    • MSP430FR2355: 32KB of program FRAM, 512 bytes of data FRAM, 4KB of RAM
    • MSP430FR2353: 16KB of program FRAM, 512 bytes of data FRAM, 2KB of RAM
    • MSP430FR2155: 32KB of program FRAM, 512 bytes of data FRAM, 4KB of RAM
    • MSP430FR2153: 16KB of program FRAM, 512 bytes of data FRAM, 2KB of RAM
  • Package options
    • 48-pin: LQFP (PT)
    • 40-pin: VQFN (RHA)
    • 38-pin: TSSOP (DBT)
    • 32-pin: VQFN (RSM)
  • Embedded microcontroller
    • 16-bit RISC architecture up to 24 MHz
    • Extended temperature: –40°C to 105°C
    • Wide supply voltage range from 3.6 V down to 1.8 V (operational voltage is restricted by SVS levels, see VSVSH- and VSVSH+ in PMM, SVS and BOR)
  • Optimized low-power modes (at 3 V)
    • Active mode: 142 µA/MHz
    • Standby:
      • LPM3 with 32768-Hz crystal: 1.43 µA (with SVS enabled)
      • LPM3.5 with 32768-Hz crystal: 620 nA (with SVS enabled)
    • Shutdown (LPM4.5): 42 nA (with SVS disabled)
  • Low-power ferroelectric RAM (FRAM)
    • Up to 32KB of nonvolatile memory
    • Built-in error correction code (ECC)
    • Configurable write protection
    • Unified memory of program, constants, and storage
    • 1015 write cycle endurance
    • Radiation resistant and nonmagnetic
  • Ease of use
    • 20KB ROM library includes driver libraries and FFT libraries
  • High-performance analog
    • One 12-channel 12-bit analog-to-digital converter (ADC)
      • Internal shared reference (1.5, 2.0, or 2.5 V)
      • Sample-and-hold 200 ksps
    • Two enhanced comparators (eCOMP)
      • Integrated 6-bit digital-to-analog converter (DAC) as reference voltage
      • Programmable hysteresis
      • Configurable high-power and low-power modes
      • One with fast 100-ns response time
      • One with 1-µs response time with 1.5-µA low power
    • Four smart analog combo (SAC-L3) (MSP430FR235x devices only)
      • Supports General-Purpose Operational Amplifier (OA)
      • Rail-to-rail input and output
      • Multiple input selections
      • Configurable high-power and low-power modes
      • Configurable PGA mode supports
        • Noninverting mode: ×1, ×2, ×3, ×5, ×9, ×17, ×26, ×33
        • Inverting mode: ×1, ×2, ×4, ×8, ×16, ×25, ×32
      • Built-in 12-bit reference DAC for offset and bias settings
      • 12-bit voltage DAC mode with optional references
  • Intelligent digital peripherals
    • Three 16-bit timers with three capture/compare registers each (Timer_B3)
    • One 16-bit timer with seven capture/compare registers each (Timer_B7)
    • One 16-bit counter-only real-time clock counter (RTC)
    • 16-bit cyclic redundancy checker (CRC)
    • Interrupt compare controller (ICC) enabling nested hardware interrupts
    • 32-bit hardware multiplier (MPY32)
    • Manchester codec (MFM)
  • Enhanced serial communications
    • Two enhanced USCI_A (eUSCI_A) modules support UART, IrDA, and SPI
    • Two enhanced USCI_B (eUSCI_B) modules support SPI and I2C
  • Clock system (CS)
    • On-chip 32-kHz RC oscillator (REFO)
    • On-chip 24-MHz digitally controlled oscillator (DCO) with frequency locked loop (FLL)
      • ±1% accuracy with on-chip reference at room temperature
    • On-chip very low-frequency 10-kHz oscillator (VLO)
    • On-chip high-frequency modulation oscillator (MODOSC)
    • External 32-kHz crystal oscillator (LFXT)
    • External high-frequency crystal oscillator up to 24 MHz (HFXT)
    • Programmable MCLK prescaler of 1 to 128
    • SMCLK derived from MCLK with programmable prescaler of 1, 2, 4, or 8
  • General input/output and pin functionality
    • 44 I/Os on 48-pin package
    • 32 interrupt pins (P1, P2, P3, and P4) can wake MCU from LPMs
  • Development tools and software (also see Tools and Software)
  • Family members (also see Device Comparison)
    • MSP430FR2355: 32KB of program FRAM, 512 bytes of data FRAM, 4KB of RAM
    • MSP430FR2353: 16KB of program FRAM, 512 bytes of data FRAM, 2KB of RAM
    • MSP430FR2155: 32KB of program FRAM, 512 bytes of data FRAM, 4KB of RAM
    • MSP430FR2153: 16KB of program FRAM, 512 bytes of data FRAM, 2KB of RAM
  • Package options
    • 48-pin: LQFP (PT)
    • 40-pin: VQFN (RHA)
    • 38-pin: TSSOP (DBT)
    • 32-pin: VQFN (RSM)

MSP430FR215x and MSP430FR235x microcontrollers (MCUs) are part of the MSP430™ MCU value line portfolio of ultra-low-power low-cost devices for sensing and measurement applications. MSP430FR235x MCUs integrate four configurable signal-chain modules called smart analog combos, each of which can be used as a 12-bit DAC or a configurable programmable-gain Op-Amp to meet the specific needs of a system while reducing the BOM and PCB size. The device also includes a 12-bit SAR ADC and two comparators. The MSP430FR215x and MSP430FR235x MCUs all support an extended temperature range from –40° up to 105°C, so higher temperature industrial applications can benefit from the devices’ FRAM data-logging capabilities. The extended temperature range allows developers to meet requirements of applications such as smoke detectors, sensor transmitters, and circuit breakers.

The MSP430FR215x and MSP430FR235x MCUs feature a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode typically in less than 10 µs.

The MSP430 ultra-low-power (ULP) FRAM microcontroller platform combines uniquely embedded FRAM and a holistic ultra-low-power system architecture, allowing system designers to increase performance while lowering energy consumption. FRAM technology combines the low-energy fast writes, flexibility, and endurance of RAM with the nonvolatile behavior of flash.

MSP430FR215x and MSP430FR235x MCUs are supported by an extensive hardware and software ecosystem with reference designs and code examples to get your design started quickly. Development kits include the MSP-EXP430FR2355 LaunchPad™ development kit and the MSP-TS430PT48 48-pin target development board. TI also provides free MSP430Ware™ software, which is available as a component of Code Composer Studio™ IDE desktop and cloud versions within TI Resource Explorer. The MSP430 MCUs are also supported by extensive online collateral, training, and online support through the E2E™ support forums.

For complete module descriptions, see the MSP430FR4xx and MSP430FR2xx Family User’s Guide.

MSP430FR215x and MSP430FR235x microcontrollers (MCUs) are part of the MSP430™ MCU value line portfolio of ultra-low-power low-cost devices for sensing and measurement applications. MSP430FR235x MCUs integrate four configurable signal-chain modules called smart analog combos, each of which can be used as a 12-bit DAC or a configurable programmable-gain Op-Amp to meet the specific needs of a system while reducing the BOM and PCB size. The device also includes a 12-bit SAR ADC and two comparators. The MSP430FR215x and MSP430FR235x MCUs all support an extended temperature range from –40° up to 105°C, so higher temperature industrial applications can benefit from the devices’ FRAM data-logging capabilities. The extended temperature range allows developers to meet requirements of applications such as smoke detectors, sensor transmitters, and circuit breakers.

The MSP430FR215x and MSP430FR235x MCUs feature a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode typically in less than 10 µs.

The MSP430 ultra-low-power (ULP) FRAM microcontroller platform combines uniquely embedded FRAM and a holistic ultra-low-power system architecture, allowing system designers to increase performance while lowering energy consumption. FRAM technology combines the low-energy fast writes, flexibility, and endurance of RAM with the nonvolatile behavior of flash.

MSP430FR215x and MSP430FR235x MCUs are supported by an extensive hardware and software ecosystem with reference designs and code examples to get your design started quickly. Development kits include the MSP-EXP430FR2355 LaunchPad™ development kit and the MSP-TS430PT48 48-pin target development board. TI also provides free MSP430Ware™ software, which is available as a component of Code Composer Studio™ IDE desktop and cloud versions within TI Resource Explorer. The MSP430 MCUs are also supported by extensive online collateral, training, and online support through the E2E™ support forums.

For complete module descriptions, see the MSP430FR4xx and MSP430FR2xx Family User’s Guide.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet MSP430FR235x, MSP430FR215x Mixed-Signal Microcontrollers datasheet (Rev. D) 10 Dec 2019
* Errata MSP430FR2155 Microcontroller Errata (Rev. H) PDF | HTML 21 Oct 2021
* User guide MSP430FR4xx and MSP430FR2xx Family User's Guide (Rev. I) 13 Mar 2019
Application note Migration Guide From MSP430 MCUs to MSPM0 MCUs (Rev. B) PDF | HTML 02 Jun 2025
User guide MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. AB) PDF | HTML 22 Sep 2022
Application note UART-to-I2C Bridge Using Low-Memory MSP430™ MCUs (Rev. A) PDF | HTML 29 Sep 2021
Technical article Detect. Sense. Control: Simplify building automation designs with MSP430™ MCUs PDF | HTML 23 Aug 2021
Application note Designing With the MSP430FR4xx and MSP430FR2xx ADC (Rev. A) PDF | HTML 02 Aug 2021
Application note Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G) PDF | HTML 02 Aug 2021
Application note Migration from MSP430 FR58xx, FR59xx, and FR6xx to FR4xx and FR2xx (Rev. B) PDF | HTML 02 Aug 2021
Application note MSP430 System-Level ESD Considerations (Rev. B) PDF | HTML 14 Jul 2021
Application note Motor Module Design for IP Network Camera Based on MSP430FR2155 PDF | HTML 22 Jun 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) PDF | HTML 13 May 2021
Application note MSP430FR2xx and MSP430FR4xx DCO+FLL Application Guide 07 Dec 2020
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML 13 Dec 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ALGO-3P-UISP1-TI — Algocraft μISP1 Programmer for Texas Instruments devices

μISP can either work connected to a host PC (RS-232, USB, LAN connections are built-in) or in standalone mode.

The programming cycle execution in standalone mode may occur by simply pressing the START button or through some TTL control lines.

Its compact size and versatility allows a simple (...)

From: Algocraft
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Development kit

MSP-EXP430FR2355 — MSP430FR2355 LaunchPad™ development kit

The MSP-EXP430FR2355 LaunchPad™ Development Kit is an easy-to-use evaluation module (EVM) based on the MSP430FR2355 Value Line microcontroller (MCU). It contains everything needed to start developing on the ultra-low-power MSP430FR2x Value Line MCU platform, including on-board debug probe for (...)

User guide: PDF
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Development kit

MSP-TS430PT48 — Target Development Board for MSP430FR2355 MCU - 48-pin (microcontroller not included)

Note:  This kit does not include MSP430™ microcontroller (MCU) samples.  To sample the compatible devices, please visit the product page or select the related MCU after adding the tool to the TI Store cart:
MSP430FR2355.

The MSP-TS430PT48 microcontroller development board is a standalone ZIF socket (...)

User guide: PDF | HTML
Not available on TI.com
Hardware programming tool

MSP-FET — MSP MCU Programmer and Debugger

The MSP-FET is a powerful emulation development tool – often called a debug probe – which allows users to quickly begin development on MSP low-power microcontrollers (MCU).

It supports programming and real-time debugging over both JTAG and SBW interfaces. Furthermore, the MSP-FET also provides a (...)

User guide: PDF | HTML
Not available on TI.com
Hardware programming tool

ALGO-3P-WRITENOW — Algocraft WriteNow! Programmer

WriteNow! Series of In-System Programmers is a breakthrough in the programming industry. The programmers support a large number of devices (microcontrollers, memories, CPLDs and other programmable devices) from various manufacturers and have a compact size for easy ATE/fixture integration. They (...)

From: Algocraft
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Software development kit (SDK)

MSP430-SDK — MSP430-SDK for MSP430 Microcontrollers

MSP430-SDK is a collection of resources that help users to write effective code for MSP430 microcontrollers (MCUs). These resources support ALL MSP430 microcontrollers. As one user mentioned, “It’s essentially everything developers need to become MSP430 microcontroller experts!”

This collection of (...)

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Firmware

MSPFRBOOT — MSPFRBOOT

The bootloader (BSL) on MSP430™ microcontrollers (MCUs) lets users communicate with embedded memory in the MSP MCUs during the prototyping phase, final production, and in service. This is done through standard interfaces such as UART, I2C, SPI, and USB. Both the programmable memory (Flash/FRAM) and (...)

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Supported products & hardware
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Getting started

TI-DEVELOPER-ZONE — Start embedded development on your desktop or in the cloud

From evaluation to deployment the TI Developer Zone provides a comprehensive range of software, tools and training to ensure that you have everything you need for each stage of the development process.
Supported products & hardware

Supported products & hardware
Get started
IDE, configuration, compiler or debugger

CCSTUDIO — Code Composer Studio™ integrated development environment (IDE)

Code Composer Studio is an integrated development environment (IDE) for TI's microcontrollers and processors. It is comprised of a rich suite of tools used to build, debug, analyze and optimize embedded applications. Code Composer Studio is available across Windows®, Linux® and macOS® platforms.

(...)

Supported products & hardware

Supported products & hardware
Launch Download options
IDE, configuration, compiler or debugger

ENERGIA — Energia

Energia is an open source & community-driven integrated development environment (IDE) & software framework. Based on the Wiring framework, Energia provides an intuitive coding environment as well as a robust framework of easy-to-use functional APIs & libraries for programming a (...)
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IDE, configuration, compiler or debugger

ENERGYTRACE — EnergyTrace Technology

EnergyTrace™ software for MSP430™ MCUs, MSP432™ MCUs, CC13xx wireless MCUs and CC26xx wireless MCUs is an energy-based code analysis tool that measures and displays the energy profile of an application and helps optimize it for ultra-low-power consumption.

As most developers know, it is difficult (...)

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IDE, configuration, compiler or debugger

IAR-KICKSTART — IAR Embedded Workbench

IAR Embedded Workbench delivers a complete development toolchain for building and debugging embedded applications for your selected target microcontroller. The included IAR C/C++ Compiler generates highly optimized code for your application, and the C-SPY Debugger is a fully integrated debugger for (...)
From: IAR Systems
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Online training

MSP430-ACADEMY — MSP430™ academy

MSP430™ academy delivers easy-to-use training modules that span a wide range of topics and LaunchPads in the MSP430 MCU portfolio.
Supported products & hardware

Supported products & hardware
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Operating system (OS)

WHIS-3P-SAFERTOS — WITTENSTEIN SAFERTOS Pre-certified safety RTOS

SAFERTOS® is a unique real time operating system designed for embedded processors. It is precertified to IEC 61508 SIL3 and ISO 26262 ASILD standards by TÜV SÜD. SAFERTOS® was crafted specifically for safety by WHIS' team of experts and is used globally in safety critical applications. WHIS and (...)
From: WITTENSTEIN High Integrity Systems
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Software programming tool

MSP-GANG-SOFTWARE — MSP-GANG Software

The MSP Gang Programmer (MSP-GANG) is a MSPM0/MSP430/MSP432 device programmer that can program up to eight identical devices at the same time.
Supported products & hardware

Supported products & hardware
Download options
Software programming tool

UNIFLASH — UniFlash for most TI microcontrollers (MCUs) and mmWave sensors

UniFlash is a software tool for programming on-chip flash on TI microcontrollers and wireless connectivity devices and on-board flash for TI processors. UniFlash provides both graphical and command-line interfaces.

UniFlash can be run from the cloud on the TI Developer Zone or downloaded and used (...)

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Support software

SLAC740 — MSP430FR235x, MSP430FR215x Code Examples

Supported products & hardware

Supported products & hardware
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Design tool

MSP-3P-SEARCH — MSP Third party search tool

TI has partnered with multiple companies to offer a wide range of solutions and services for TI MSP devices. These companies can accelerate your path to production using MSP devices. Download this search tool to quickly browse third-party details and find the right third-party to meet your needs.

(...)

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Reference designs

TIDA-010030 — Accurate gauging and 50-μA standby current, 13-S, 48-V li-ion battery pack reference design

This reference design is a low standby and ship mode current consumption and high SOC gauging accuracy 13S, 48-V Li-ion battery pack design. It monitors each cell voltage, pack current and temperature with high accuracy and protects the Li-ion battery pack against overvoltage, undervoltage, over (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010074 — 16S-17S Battery pack reference design with low current consumption

This reference design is a low standby and low ship mode current consumption 16S-17S LiFePO4 Li-ion battery pack design for telecom battery backup and emotorcycles. It was implemented for a 2-layer PCB. The 9S-15S AFE bq76940 monitors the lower 15 cells voltage and a two-channel general purpose (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010216 — 16s battery pack reference design with low-side MOSFET control for large capacity applications

This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 16s Lithium-ion (Li-ion) LiFePO4 battery pack. The design monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion and LiFePO4 battery (...)
Design guide: PDF
Reference designs

TIDA-010072 — Air blower and valve control reference design for respiratory applications

This reference design provides a compact system design capable of supporting motor acceleration and deceleration up to ±200 kRPM/s, which is a key requirement in many respirator applications. The design supports a number of offboard C2000 controllers including (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010208 — 10s-16s battery pack reference design with accurate cell measurement and high-side MOSFET control

This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 10s–16s Lithium-ion (Li-ion), LiFePO4 battery pack design. It monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion, LiFePO4 (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
LQFP (PT) 48 Ultra Librarian
TSSOP (DBT) 38 Ultra Librarian
VQFN (RHA) 40 Ultra Librarian
VQFN (RSM) 32 Ultra Librarian
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Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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Support & training

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