TMS320F28379DPTPS - 800MIPS Dual-Core C28x MCU 1MB Flash | TI
料号： TMS320F28379DPTPS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $19.38 | $19.38 |
| 10 | $17.95 | $179.50 |
| 100 | $15.5 | $1,550.00 |
| 500 | $13.2 | $6,600.00 |
| 1,000 | $11.8 | $11,800.00 |
TMS320F28379DPTPS 概述
A C2000 Delfino microcontroller is a real-time control MCU optimized for high-performance digital signal processing in power electronics, motor control, and industrial automation. The Delfino family sits above the Piccolo series in the C2000 hierarchy (C28x core -> C2000 MCU -> real-time control MCU -> 32-bit embedded processor). It targets deterministic loop execution at sub-microsecond latencies for closed-loop control applications.
The TMS320F28379DPTPS features dual 200 MHz C28x cores (each 200 MIPS), dual CLAs offloading control loops, 16-bit ADCs at up to 3.5 MSPS, sigma-delta filter interfaces, eight Enhanced PWM modules (16 channels), four Enhanced Capture (ECAP), three Enhanced Quadrature Encoder Pulse (EQEP), and a USB 2.0 Full-Speed + Mac + PHY. The 1 MB flash, 204 KB SRAM, and four ECC-protected memory zones support IEC 60730 / IEC 61508 / ISO 26262 functional safety libraries.
Architecturally, the dual-core design partitions control and housekeeping tasks: one C28x core runs motor or power-converter state machines while the second CLA-accelerated core runs housekeeping, communications, or sensor-fusion code. The TMU accelerates trigonometric transforms (sin, cos, arctan) used in field-oriented control, and the VCU-II accelerates complex math (FFT, complex MAC) for signal-chain and grid-monitoring designs. Lock-step switching protection and dual-zone ECC support ASIL-D capable system designs.
Typical applications include solar inverters and grid-tie energy storage, industrial servo drives and robot motor control, EV traction inverter and onboard chargers, digital power supplies (PFC + LLC + DCDC), and aerospace actuation systems. The 176-HLQFP package with 0.5 mm pitch is a long-running industrial footprint.
When designing with this device, allocate 2 layers at minimum for ground/power pour, place decoupling within 2 mm of every VDDSOC/VDDIO pin, and use a 4-layer stack-up with dedicated ground plane for clean ADC reference and PWM signals. The high-performance analog rails (VDDA, VREFHI) must be sourced from a clean LDO with ferrite beads to isolate digital switching noise.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： TMS320F28379DPTPS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TMS320F28379DPTPS （相同外形与封装尺寸） ——差异在于 Functional Safety, Package, Series, Operating Temperature, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
TMS320F28379DPTPT
✅ 直接替换📋 参考替代料（不在目录中）
TMS320F28377DPTPT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →TMS320F28379SPTPT
✅ 直接替换📋 参考替代料（不在目录中）
TMS320F28375DPTPT
✅ 直接替换📋 参考替代料（不在目录中）
TMS320F28374SPTPT
✅ 直接替换📋 参考替代料（不在目录中）
TMS320F28379DPTPS 最大额定值与电气特性
| Series | C2000™ C28x Delfino™, Functional Safety (FuSa) |
| Core Processor | 2x C28x, 32-bit dual-core |
| Core Speed | 200 MHz per core (800 MIPS aggregate) |
| Co-processor | 2x Control Law Accelerator (CLA), FPU, TMU, VCU-II |
| Flash Memory | 1 MB (512K x 16) |
| RAM | 204 KB |
| 封装 | 176-HLQFP (PTP), 24x24 mm, 0.5 mm pitch |
| 引脚数量 | 176 |
| ADC | 16-bit, up to 3.5 MSPS, sigma-delta interface |
| PWM Channels | 16 (8 Enhanced PWM modules) |
| 电源电压 | 1.14 V to 3.47 V |
| 工作温度 | -40°C to +125°C |
| Connectivity | USB 2.0 FS + MAC + PHY, CAN, SPI, I2C, UART, McBSP |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
| Functional Safety | FuSa capable, supports IEC 61508 / ISO 26262 libraries |
TMS320F28379DPTPS 引脚配置
| 引脚 1 | VSS — Digital ground |
| 引脚 2 | VSSA — Analog ground |
| 引脚 3 | ADCINB0 — ADC-B input channel 0 |
| 引脚 4 | ADCINB1 — ADC-B input channel 1 |
| 引脚 5 | ADCINB2 — ADC-B input channel 2 |
| 引脚 6 | ADCINB3 — ADC-B input channel 3 |
| 引脚 7 | VREFHIA — ADC-A high reference |
| 引脚 8 | VREFHIB — ADC-B high reference |
| 引脚 9 | VREFLOA — ADC-A low reference |
| 引脚 10 | VREFLOB — ADC-B low reference |
| 引脚 11 | VDDA — Analog 3.3V supply |
| 引脚 12 | VDD — Digital 3.3V I/O supply |
| 引脚 13 | GPIO0 — General-purpose I/O / EPWM1A |
| 引脚 14 | GPIO1 — General-purpose I/O / EPWM1B |
| 引脚 15 | GPIO2 — General-purpose I/O / EPWM2A |
| 引脚 16 | GPIO3 — General-purpose I/O / EPWM2B |
| 引脚 17 | GPIO4 — General-purpose I/O / EPWM3A |
| 引脚 18 | GPIO5 — General-purpose I/O / EPWM3B |
| 引脚 19 | GPIO6 — General-purpose I/O / EPWM4A |
| 引脚 20 | GPIO7 — General-purpose I/O / EPWM4B |
| 引脚 21 | GPIO8 — General-purpose I/O / EPWM5A |
| 引脚 22 | GPIO9 — General-purpose I/O / EPWM5B |
| 引脚 23 | GPIO10 — General-purpose I/O / EPWM6A |
| 引脚 24 | GPIO11 — General-purpose I/O / EPWM6B |
| 引脚 25 | GPIO12 — General-purpose I/O / EPWM7A |
| 引脚 26 | GPIO13 — General-purpose I/O / EPWM7B |
| 引脚 27 | GPIO14 — General-purpose I/O / EPWM8A |
| 引脚 28 | GPIO15 — General-purpose I/O / EPWM8B |
| 引脚 29 | GPIO16 — General-purpose I/O / SPISIMOA |
| 引脚 30 | GPIO17 — General-purpose I/O / SPISOMIA |
| 引脚 31 | GPIO18 — General-purpose I/O / SPICLKA |
| 引脚 32 | GPIO19 — General-purpose I/O / SPISTEAn |
| 引脚 33 | VDDIO — Digital 3.3V I/O supply |
| 引脚 34 | VSS — Digital ground |
| 引脚 35 | GPIO20 — General-purpose I/O / EQEP1A |
| 引脚 36 | GPIO21 — General-purpose I/O / EQEP1B |
| 引脚 37 | GPIO22 — General-purpose I/O / EQEP1S |
| 引脚 38 | GPIO23 — General-purpose I/O / EQEP1I |
| 引脚 39 | GPIO24 — General-purpose I/O / ECAP1 |
| 引脚 40 | GPIO25 — General-purpose I/O / ECAP2 |
| 引脚 41 | GPIO26 — General-purpose I/O / ECAP3 |
| 引脚 42 | GPIO27 — General-purpose I/O / ECAP4 |
| 引脚 43 | GPIO28 — General-purpose I/O / SCIRXDA |
| 引脚 44 | GPIO29 — General-purpose I/O / SCITXDA |
| 引脚 45 | GPIO30 — General-purpose I/O / CANRXA |
| 引脚 46 | GPIO31 — General-purpose I/O / CANTXA |
| 引脚 47 | GPIO32 — General-purpose I/O / SDAA |
| 引脚 48 | GPIO33 — General-purpose I/O / SCLA |
| 引脚 49 | GPIO34 — General-purpose I/O / ECAP1 |
| 引脚 50 | GPIO35 — General-purpose I/O / SCIRXDA |
| 引脚 51 | GPIO36 — General-purpose I/O / SCITXDA |
| 引脚 52 | GPIO37 — General-purpose I/O / EQEP1A |
| 引脚 53 | GPIO38 — General-purpose I/O / EQEP1B |
| 引脚 54 | GPIO39 — General-purpose I/O / CLB_OUTPUT |
| 引脚 55 | GPIO40 — General-purpose I/O / EPWM9A |
| 引脚 56 | GPIO41 — General-purpose I/O / EPWM9B |
| 引脚 57 | GPIO42 — General-purpose I/O / EPWM10A |
| 引脚 58 | GPIO43 — General-purpose I/O / EPWM10B |
| 引脚 59 | GPIO44 — General-purpose I/O / MFSXA |
| 引脚 60 | GPIO45 — General-purpose I/O / MCLKXA |
| 引脚 61 | VDDIO — Digital 3.3V I/O supply |
| 引脚 62 | VSS — Digital ground |
| 引脚 63 | GPIO46 — General-purpose I/O / EPWM11A |
| 引脚 64 | GPIO47 — General-purpose I/O / EPWM11B |
| 引脚 65 | GPIO48 — General-purpose I/O / OUTPUTXBAR1 |
| 引脚 66 | GPIO49 — General-purpose I/O / OUTPUTXBAR2 |
| 引脚 67 | GPIO50 — General-purpose I/O / OUTPUTXBAR3 |
| 引脚 68 | GPIO51 — General-purpose I/O / OUTPUTXBAR4 |
| 引脚 69 | GPIO52 — General-purpose I/O / OUTPUTXBAR5 |
| 引脚 70 | GPIO53 — General-purpose I/O / OUTPUTXBAR6 |
| 引脚 71 | GPIO54 — General-purpose I/O / OUTPUTXBAR7 |
| 引脚 72 | GPIO55 — General-purpose I/O / OUTPUTXBAR8 |
| 引脚 73 | GPIO56 — General-purpose I/O / SPISTEA |
| 引脚 74 | GPIO57 — General-purpose I/O / SPISIMOA |
| 引脚 75 | GPIO58 — General-purpose I/O / OUTPUTXBAR1 |
| 引脚 76 | GPIO59 — General-purpose I/O / OUTPUTXBAR2 |
| 引脚 77 | GPIO60 — General-purpose I/O / OUTPUTXBAR3 |
| 引脚 78 | GPIO61 — General-purpose I/O / OUTPUTXBAR4 |
| 引脚 79 | GPIO62 — General-purpose I/O / OUTPUTXBAR5 |
| 引脚 80 | GPIO63 — General-purpose I/O / OUTPUTXBAR6 |
| 引脚 81 | GPIO64 — General-purpose I/O / SPISIMOB |
| 引脚 82 | GPIO65 — General-purpose I/O / SPISOMIB |
| 引脚 83 | GPIO66 — General-purpose I/O / SPICLKB |
| 引脚 84 | GPIO67 — General-purpose I/O / SPISTEB |
| 引脚 85 | VDDIO — Digital 3.3V I/O supply |
| 引脚 86 | VSS — Digital ground |
| 引脚 87 | GPIO68 — General-purpose I/O / EM1D17 |
| 引脚 88 | GPIO69 — General-purpose I/O / EM1D18 |
| 引脚 89 | GPIO70 — General-purpose I/O / EM1D19 |
| 引脚 90 | GPIO71 — General-purpose I/O / EM1D20 |
| 引脚 91 | GPIO72 — General-purpose I/O / EM1D21 |
| 引脚 92 | GPIO73 — General-purpose I/O / EM1D22 |
| 引脚 93 | GPIO74 — General-purpose I/O / EM1D23 |
| 引脚 94 | GPIO75 — General-purpose I/O / EM1D24 |
| 引脚 95 | GPIO76 — General-purpose I/O / EM1D25 |
| 引脚 96 | GPIO77 — General-purpose I/O / EM1D26 |
| 引脚 97 | GPIO78 — General-purpose I/O / EM1D27 |
| 引脚 98 | GPIO79 — General-purpose I/O / EM1D28 |
| 引脚 99 | GPIO80 — General-purpose I/O / EM1D29 |
| 引脚 100 | GPIO81 — General-purpose I/O / EM1D30 |
| 引脚 101 | GPIO82 — General-purpose I/O / EM1D31 |
| 引脚 102 | GPIO83 — General-purpose I/O / EM1A12 |
| 引脚 103 | GPIO84 — General-purpose I/O / EM1A13 |
| 引脚 104 | GPIO85 — General-purpose I/O / EM1A14 |
| 引脚 105 | GPIO86 — General-purpose I/O / EM1A15 |
| 引脚 106 | GPIO87 — General-purpose I/O / EM1A16 |
| 引脚 107 | GPIO88 — General-purpose I/O / EM1A17 |
| 引脚 108 | GPIO89 — General-purpose I/O / EM1A18 |
| 引脚 109 | VDDIO — Digital 3.3V I/O supply |
| 引脚 110 | VSS — Digital ground |
| 引脚 111 | GPIO90 — General-purpose I/O / EM1A19 |
| 引脚 112 | GPIO91 — General-purpose I/O / EM1A20 |
| 引脚 113 | GPIO92 — General-purpose I/O / EM1A21 |
| 引脚 114 | GPIO93 — General-purpose I/O / EM1A22 |
| 引脚 115 | GPIO94 — General-purpose I/O / EM1A23 |
| 引脚 116 | GPIO95 — General-purpose I/O / EM1CAS |
| 引脚 117 | GPIO96 — General-purpose I/O / EM1DQSn |
| 引脚 118 | GPIO97 — General-purpose I/O / EM1DQM0 |
| 引脚 119 | GPIO98 — General-purpose I/O / EM1DQM1 |
| 引脚 120 | GPIO99 — General-purpose I/O / EM1DQM2 |
| 引脚 121 | GPIO100 — General-purpose I/O / EM1DQM3 |
| 引脚 122 | GPIO101 — General-purpose I/O / EM1CLK |
| 引脚 123 | GPIO102 — General-purpose I/O / EM1CLKN |
| 引脚 124 | GPIO103 — General-purpose I/O / EM1WEn |
| 引脚 125 | GPIO104 — General-purpose I/O / EM1OEn |
| 引脚 126 | GPIO105 — General-purpose I/O / EM1RASn |
| 引脚 127 | GPIO106 — General-purpose I/O / EM1CS0n |
| 引脚 128 | GPIO107 — General-purpose I/O / EM1CS2n |
| 引脚 129 | GPIO108 — General-purpose I/O / EM1CS3n |
| 引脚 130 | GPIO109 — General-purpose I/O / EM1BA0 |
| 引脚 131 | GPIO110 — General-purpose I/O / EM1BA1 |
| 引脚 132 | GPIO111 — General-purpose I/O / EM1A0 |
| 引脚 133 | GPIO112 — General-purpose I/O / EM1A1 |
| 引脚 134 | GPIO113 — General-purpose I/O / EM1A2 |
| 引脚 135 | GPIO114 — General-purpose I/O / EM1A3 |
| 引脚 136 | GPIO115 — General-purpose I/O / EM1A4 |
| 引脚 137 | GPIO116 — General-purpose I/O / EM1A5 |
| 引脚 138 | GPIO117 — General-purpose I/O / EM1A6 |
| 引脚 139 | GPIO118 — General-purpose I/O / EM1A7 |
| 引脚 140 | GPIO119 — General-purpose I/O / EM1A8 |
| 引脚 141 | GPIO120 — General-purpose I/O / EM1A9 |
| 引脚 142 | GPIO121 — General-purpose I/O / EM1A10 |
| 引脚 143 | GPIO122 — General-purpose I/O / EM1A11 |
| 引脚 144 | GPIO123 — General-purpose I/O / EM1WAITn |
| 引脚 145 | VDDIO — Digital 3.3V I/O supply |
| 引脚 146 | VSS — Digital ground |
| 引脚 147 | GPIO124 — General-purpose I/O / EM1D0 |
| 引脚 148 | GPIO125 — General-purpose I/O / EM1D1 |
| 引脚 149 | GPIO126 — General-purpose I/O / EM1D2 |
| 引脚 150 | GPIO127 — General-purpose I/O / EM1D3 |
| 引脚 151 | GPIO128 — General-purpose I/O / EM1D4 |
| 引脚 152 | GPIO129 — General-purpose I/O / EM1D5 |
| 引脚 153 | GPIO130 — General-purpose I/O / EM1D6 |
| 引脚 154 | GPIO131 — General-purpose I/O / EM1D7 |
| 引脚 155 | GPIO132 — General-purpose I/O / EM1D8 |
| 引脚 156 | GPIO133 — General-purpose I/O / EM1D9 |
| 引脚 157 | GPIO134 — General-purpose I/O / EM1D10 |
| 引脚 158 | GPIO135 — General-purpose I/O / EM1D11 |
| 引脚 159 | GPIO136 — General-purpose I/O / EM1D12 |
| 引脚 160 | GPIO137 — General-purpose I/O / EM1D13 |
| 引脚 161 | GPIO138 — General-purpose I/O / EM1D14 |
| 引脚 162 | GPIO139 — General-purpose I/O / EM1D15 |
| 引脚 163 | GPIO140 — General-purpose I/O / EM1D16 |
| 引脚 164 | GPIO141 — General-purpose I/O / McBSP_DR |
| 引脚 165 | GPIO142 — General-purpose I/O / McBSP_DX |
| 引脚 166 | GPIO143 — General-purpose I/O / McBSP_FSX |
| 引脚 167 | GPIO144 — General-purpose I/O / McBSP_CLKX |
| 引脚 168 | GPIO145 — General-purpose I/O / TDO |
| 引脚 169 | GPIO146 — General-purpose I/O / TDI |
| 引脚 170 | GPIO147 — General-purpose I/O / TMS |
| 引脚 171 | GPIO148 — General-purpose I/O / TCK |
| 引脚 172 | XRSn — Reset input (active low) |
| 引脚 173 | VDD — Digital 3.3V supply |
| 引脚 174 | VDDOSC — Oscillator 3.3V supply |
| 引脚 175 | X1 — Crystal oscillator input |
| 引脚 176 | X2 — Crystal oscillator output |
典型应用
TMS320F28379DPTPS 适用于 6 应用s: Solar Inverter and Grid-Tie Energy Storage, Industrial Servo Drive and Robot Motor Control, EV Traction Inverter and On-Board Charger, Digital Power Supply (PFC + LLC + DCDC), Aerospace Actuation and Flight Control, Renewable Microgrid Controller.
Solar Inverter and Grid-Tie Energy Storage
The TMS320F28379DPTPS delivers 800 MIPS aggregate DSP throughput needed for grid-tie solar inverter control loops. The two C28x cores run MPPT, PLL grid-synchronization, and anti-islanding protection in parallel, while the 16-bit ADCs sample PV string current/voltage at 3.5 MSPS for sub-cycle fault detection. Its 16 enhanced PWM channels drive interleaved PFC + LLC + DC-DC stages with nanosecond dead-band control. The functional-safety libraries and dual-zone ECC simplify IEC 62109 and UL 1741 compliance. Compared with a discrete DSP+MCU architecture, the F28379D reduces BOM by integrating ADC, PWM, CLB, and communications on a single 176-HLQFP die.
推荐
Industrial Servo Drive and Robot Motor Control
Dual 200 MHz C28x cores plus dual Control Law Accelerators make the TMS320F28379DPTPS ideal for multi-axis industrial servo drives. One core runs the FOCOS field-oriented control state machine (clarke-update) while the second CLA-accelerated core computes the encoder feedback loop and EtherCAT / CAN-FD communication, achieving <1 µs current loop latency. The 16-bit ADC with sigma-delta filter interface reads resolver/encoder position and phase currents. Its 176-HLQFP footprint fits multi-axis robotics modules and supports the -40 to +125°C industrial temperature range. The Configurable Logic Block (CLB) lets designers add custom glue logic without external CPLDs.
推荐
EV Traction Inverter and On-Board Charger
The TMS320F28379DPTPS powers traction inverter controllers for electric vehicles. Dual 200 MHz C28x cores execute space-vector PWM with 5 ns resolution for SiC MOSFET driving, while the second core handles the OBC (on-board charger) and BMS communications. The functional-safety libraries and ECC memory support ISO 26262 ASIL-D system designs. Sixteen 16-bit ADC channels sample phase currents at 3.5 MSPS with hardware-triggered synchronization to the PWM carrier. The 176-HLQFP automotive-suitable package, when paired with the -Q1 variant, addresses automotive-grade EMC and temperature requirements.
推荐
Digital Power Supply (PFC + LLC + DCDC)
Digital power supplies benefit from the TMS320F28379DPTPS TMU accelerator and dual CLA cores that offload closed-loop control tasks. One C28x core runs PFC + LLC primary-side control, while the secondary CLA handles synchronous-rectifier timing and adaptive dead-band. The 16 enhanced PWM channels with nano-second edge resolution drive GaN/SiC power stages. The 16-bit ADC at 3.5 MSPS digitizes feedback signals for cycle-by-cycle current-mode control. The 204 KB SRAM buffers state-machine variables for fast transient response, and the USB 2.0 MAC+PHY enables GUI tuning during development.
推荐
Aerospace Actuation and Flight Control
The TMS320F28379DPTPS is specified -40 to +125°C with dual ECC-protected memory zones and lockstep-capable architecture, making it suitable for aerospace flight-control actuation. The dual C28x cores run flight-control laws and surface-actuator drives concurrently, while the CLB implements custom hardware interlocks. The 800 MIPS performance meets DO-178C design assurance when paired with TI's certified software libraries. The 176-HLQFP package is qualified for harsh thermal-vibration environments typical of UAV and eVTOL platforms.
推荐
Renewable Microgrid Controller
The TMS320F28379DPTPS anchors microgrid controllers that integrate solar, battery storage, diesel gensets, and grid-tie inverters. Dual C28x cores run power-flow management and frequency/watt-var droop control loops in parallel. The 1 MB flash hosts the entire microgrid state machine plus Modbus TCP / DNP3 protocol stacks. USB 2.0, CAN-FD, and EtherCAT peripherals provide industrial connectivity. Functional-safety libraries support grid-fault ride-through per IEEE 1547-2018. The 176-HLQFP package supports long-life industrial deployments in substation environments.
推荐
推荐产品汇总
工程参考数据： TMS320F28379DPTPS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TMS320F28379DPTPT | TMS320F28377DPTPT | TMS320F28379SPTPT | TMS320F28375DPTPT | TMS320F28374SPTPT |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 176-HLQFP (PTP) 24x24mm | 176-HLQFP (PTP) 24x24mm | 176-HLQFP (PTP) 24x24mm | 176-HLQFP (PTP) 24x24mm | 176-HLQFP (PTP) 24x24mm | 176-HLQFP (PTP) 24x24mm |
| Core Count | 2x C28x + 2x CLA | 2x C28x + 2x CLA | 2x C28x + 2x CLA | 1x C28x + 1x CLA | 2x C28x + 2x CLA | 1x C28x + 1x CLA |
| CPU Clock | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 512 KB | 512 KB |
| RAM | 204 KB | 204 KB | 204 KB | 204 KB | 132 KB | 132 KB |
| ADC Resolution | 12-bit + 16-bit | 12-bit + 16-bit | 12-bit + 16-bit | 12-bit + 16-bit | 12-bit + 16-bit | 12-bit + 16-bit |
| PWM Channels | 16 (8 EPWM modules) | 16 (8 EPWM modules) | 16 (8 EPWM modules) | 16 (8 EPWM modules) | 16 (8 EPWM modules) | 16 (8 EPWM modules) |
| Sigma-Delta Filter | Yes | Yes | No | Yes | No | No |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes | No |
关键差异点
- Dual C28x + dual CLA architecture delivers 800 MIPS with hardware DSP parallelism （对比 TMS320F28379SPTPT (single-core variant))
- Sigma-delta filter interface for direct connection to isolated delta-sigma modulators （对比 TMS320F28377DPTPT (lower-tier dual-core))
- 1 MB flash and 204 KB RAM with ECC for safety-critical code + data storage （对比 TMS320F28375DPTPT (mid-tier dual-core))
设计说明
The TMS320F28379DPTPS requires a clean 1.2 V VDDSOC rail capable of delivering 1 A continuous (peak 1.5 A during CLA + ADC + PWM intensive operations). TI recommends the TPS54360 or TPS62827 with 4.7 µF ceramic input/output capacitors placed within 5 mm of the VDDSOC pin. Estimated: at 200 MHz dual-core active with all peripherals on, core current peaks around 800 mA. Add a 22 µF bulk capacitor on VDDSOC for transient suppression. Connect VDDA (analog 3.3 V) from a separate low-noise LDO such as TPS7A4701RGWR with a ferrite bead to isolate digital switching noise.
At 200 MHz dual-core full-load with all peripherals active, the 176-HLQFP (PTP) package dissipates approximately 1.2 W. The 24x24 mm HLQFP has theta_JA around 28 °C/W on a standard 4-layer JEDEC test board, yielding a junction-to-ambient rise of 33.6 °C above ambient. In enclosed industrial enclosures at +60 °C ambient, junction temperature can approach 95 °C - within the 125 °C maximum but with limited margin. For high-temperature operation, add a 25x25 mm copper pad thermal relief under the exposed pad and 1 oz copper on inner layers to drop theta_JA to ~18 °C/W.
Use a 4-layer PCB with dedicated ground plane and split power planes for VDDSOC / VDDIO / VDDA. Place all decoupling capacitors within 2 mm of their respective supply pins with vias to the ground plane directly under the pad. Route ADC inputs (ADCINA0..15, ADCINB0..15) as differential pairs with 100 Ω impedance, kept away from PWM and GPIO switching signals by at least 3x trace width. The X1/X2 crystal traces must be < 10 mm and shielded by ground pour. For USB 2.0, the DP/DM traces need 90 Ω differential and a common-mode choke.
Common design mistakes include (1) leaving the XRSn reset pin floating - tie to a 10 kΩ pull-up and 1 µF capacitor for proper power-on reset; (2) failing to configure the boot mode pins GPIO72/GPIO84 for the desired boot source (flash, SCI, CAN, USB); (3) routing ADC reference VREFHIA/B without adequate decoupling - place a 1 µF X7R + 0.1 µF capacitor pair directly at each pin; (4) forgetting to enable the WD peripheral clock - the watchdog is disabled by default and must be enabled in software; (5) ignoring the 1.14 V minimum VDDSOC - dropouts below this cause undefined behavior.
The 176-HLQFP (PTP) has 0.5 mm pitch - use 0.2 mm trace width with 0.2 mm spacing between pads, and 0.2 mm via-in-pad for the inner row. A 4-layer stack-up with 0.20/0.20/0.20/0.20 mm dielectric is recommended. Place the MCU centered on the top side with power input connectors on one edge and signal/communication connectors on the opposite edge to minimize ground bounce. Use stitching vias every 5 mm around the periphery to bond the ground plane and reduce EMI. The exposed pad (PTP package has no exposed pad; thermal dissipation is through the perimeter pins) must have at least 50 vias for ground return.
合规信息
RoHS compliant per TI product page. -Q1 variant available separately for AEC-Q100 automotive. Functional-Safety (FuSa) capable with certified software libraries for IEC 61508 SIL-3 / ISO 26262 ASIL-D.
