TMS320F28379DPTPS - 800MIPS Dual-Core C28x MCU 1MB Flash | TI
MPN: TMS320F28379DPTPS ✓ Hoạt độngTMS320F28379DPTPS Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho TMS320F28379DPTPS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TMS320F28379DPTPS (cùng hình factor và footprint) — khác nhau ở Functional Safety, Package, Series, Operating Temperature, Mounting Type.
TMS320F28379DPTPT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TMS320F28377DPTPT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TMS320F28379SPTPT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TMS320F28375DPTPT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TMS320F28374SPTPT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TMS320F28379DPTPS Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 176-HLQFP (PTP), 24x24 mm, 0.5 mm pitch |
| Số chân | 176 |
| ADC | 16-bit, up to 3.5 MSPS, sigma-delta interface |
| PWM Channels | 16 (8 Enhanced PWM modules) |
| Điện áp cung cấp | 1.14 V to 3.47 V |
| Nhiệt độ hoạt động | -40°C to +125°C |
| Connectivity | USB 2.0 FS + MAC + PHY, CAN, SPI, I2C, UART, McBSP |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| Functional Safety | FuSa capable, supports IEC 61508 / ISO 26262 libraries |
Cấu hình chân TMS320F28379DPTPS
| Chân 1 | VSS — Digital ground |
| Chân 2 | VSSA — Analog ground |
| Chân 3 | ADCINB0 — ADC-B input channel 0 |
| Chân 4 | ADCINB1 — ADC-B input channel 1 |
| Chân 5 | ADCINB2 — ADC-B input channel 2 |
| Chân 6 | ADCINB3 — ADC-B input channel 3 |
| Chân 7 | VREFHIA — ADC-A high reference |
| Chân 8 | VREFHIB — ADC-B high reference |
| Chân 9 | VREFLOA — ADC-A low reference |
| Chân 10 | VREFLOB — ADC-B low reference |
| Chân 11 | VDDA — Analog 3.3V supply |
| Chân 12 | VDD — Digital 3.3V I/O supply |
| Chân 13 | GPIO0 — General-purpose I/O / EPWM1A |
| Chân 14 | GPIO1 — General-purpose I/O / EPWM1B |
| Chân 15 | GPIO2 — General-purpose I/O / EPWM2A |
| Chân 16 | GPIO3 — General-purpose I/O / EPWM2B |
| Chân 17 | GPIO4 — General-purpose I/O / EPWM3A |
| Chân 18 | GPIO5 — General-purpose I/O / EPWM3B |
| Chân 19 | GPIO6 — General-purpose I/O / EPWM4A |
| Chân 20 | GPIO7 — General-purpose I/O / EPWM4B |
| Chân 21 | GPIO8 — General-purpose I/O / EPWM5A |
| Chân 22 | GPIO9 — General-purpose I/O / EPWM5B |
| Chân 23 | GPIO10 — General-purpose I/O / EPWM6A |
| Chân 24 | GPIO11 — General-purpose I/O / EPWM6B |
| Chân 25 | GPIO12 — General-purpose I/O / EPWM7A |
| Chân 26 | GPIO13 — General-purpose I/O / EPWM7B |
| Chân 27 | GPIO14 — General-purpose I/O / EPWM8A |
| Chân 28 | GPIO15 — General-purpose I/O / EPWM8B |
| Chân 29 | GPIO16 — General-purpose I/O / SPISIMOA |
| Chân 30 | GPIO17 — General-purpose I/O / SPISOMIA |
| Chân 31 | GPIO18 — General-purpose I/O / SPICLKA |
| Chân 32 | GPIO19 — General-purpose I/O / SPISTEAn |
| Chân 33 | VDDIO — Digital 3.3V I/O supply |
| Chân 34 | VSS — Digital ground |
| Chân 35 | GPIO20 — General-purpose I/O / EQEP1A |
| Chân 36 | GPIO21 — General-purpose I/O / EQEP1B |
| Chân 37 | GPIO22 — General-purpose I/O / EQEP1S |
| Chân 38 | GPIO23 — General-purpose I/O / EQEP1I |
| Chân 39 | GPIO24 — General-purpose I/O / ECAP1 |
| Chân 40 | GPIO25 — General-purpose I/O / ECAP2 |
| Chân 41 | GPIO26 — General-purpose I/O / ECAP3 |
| Chân 42 | GPIO27 — General-purpose I/O / ECAP4 |
| Chân 43 | GPIO28 — General-purpose I/O / SCIRXDA |
| Chân 44 | GPIO29 — General-purpose I/O / SCITXDA |
| Chân 45 | GPIO30 — General-purpose I/O / CANRXA |
| Chân 46 | GPIO31 — General-purpose I/O / CANTXA |
| Chân 47 | GPIO32 — General-purpose I/O / SDAA |
| Chân 48 | GPIO33 — General-purpose I/O / SCLA |
| Chân 49 | GPIO34 — General-purpose I/O / ECAP1 |
| Chân 50 | GPIO35 — General-purpose I/O / SCIRXDA |
| Chân 51 | GPIO36 — General-purpose I/O / SCITXDA |
| Chân 52 | GPIO37 — General-purpose I/O / EQEP1A |
| Chân 53 | GPIO38 — General-purpose I/O / EQEP1B |
| Chân 54 | GPIO39 — General-purpose I/O / CLB_OUTPUT |
| Chân 55 | GPIO40 — General-purpose I/O / EPWM9A |
| Chân 56 | GPIO41 — General-purpose I/O / EPWM9B |
| Chân 57 | GPIO42 — General-purpose I/O / EPWM10A |
| Chân 58 | GPIO43 — General-purpose I/O / EPWM10B |
| Chân 59 | GPIO44 — General-purpose I/O / MFSXA |
| Chân 60 | GPIO45 — General-purpose I/O / MCLKXA |
| Chân 61 | VDDIO — Digital 3.3V I/O supply |
| Chân 62 | VSS — Digital ground |
| Chân 63 | GPIO46 — General-purpose I/O / EPWM11A |
| Chân 64 | GPIO47 — General-purpose I/O / EPWM11B |
| Chân 65 | GPIO48 — General-purpose I/O / OUTPUTXBAR1 |
| Chân 66 | GPIO49 — General-purpose I/O / OUTPUTXBAR2 |
| Chân 67 | GPIO50 — General-purpose I/O / OUTPUTXBAR3 |
| Chân 68 | GPIO51 — General-purpose I/O / OUTPUTXBAR4 |
| Chân 69 | GPIO52 — General-purpose I/O / OUTPUTXBAR5 |
| Chân 70 | GPIO53 — General-purpose I/O / OUTPUTXBAR6 |
| Chân 71 | GPIO54 — General-purpose I/O / OUTPUTXBAR7 |
| Chân 72 | GPIO55 — General-purpose I/O / OUTPUTXBAR8 |
| Chân 73 | GPIO56 — General-purpose I/O / SPISTEA |
| Chân 74 | GPIO57 — General-purpose I/O / SPISIMOA |
| Chân 75 | GPIO58 — General-purpose I/O / OUTPUTXBAR1 |
| Chân 76 | GPIO59 — General-purpose I/O / OUTPUTXBAR2 |
| Chân 77 | GPIO60 — General-purpose I/O / OUTPUTXBAR3 |
| Chân 78 | GPIO61 — General-purpose I/O / OUTPUTXBAR4 |
| Chân 79 | GPIO62 — General-purpose I/O / OUTPUTXBAR5 |
| Chân 80 | GPIO63 — General-purpose I/O / OUTPUTXBAR6 |
| Chân 81 | GPIO64 — General-purpose I/O / SPISIMOB |
| Chân 82 | GPIO65 — General-purpose I/O / SPISOMIB |
| Chân 83 | GPIO66 — General-purpose I/O / SPICLKB |
| Chân 84 | GPIO67 — General-purpose I/O / SPISTEB |
| Chân 85 | VDDIO — Digital 3.3V I/O supply |
| Chân 86 | VSS — Digital ground |
| Chân 87 | GPIO68 — General-purpose I/O / EM1D17 |
| Chân 88 | GPIO69 — General-purpose I/O / EM1D18 |
| Chân 89 | GPIO70 — General-purpose I/O / EM1D19 |
| Chân 90 | GPIO71 — General-purpose I/O / EM1D20 |
| Chân 91 | GPIO72 — General-purpose I/O / EM1D21 |
| Chân 92 | GPIO73 — General-purpose I/O / EM1D22 |
| Chân 93 | GPIO74 — General-purpose I/O / EM1D23 |
| Chân 94 | GPIO75 — General-purpose I/O / EM1D24 |
| Chân 95 | GPIO76 — General-purpose I/O / EM1D25 |
| Chân 96 | GPIO77 — General-purpose I/O / EM1D26 |
| Chân 97 | GPIO78 — General-purpose I/O / EM1D27 |
| Chân 98 | GPIO79 — General-purpose I/O / EM1D28 |
| Chân 99 | GPIO80 — General-purpose I/O / EM1D29 |
| Chân 100 | GPIO81 — General-purpose I/O / EM1D30 |
| Chân 101 | GPIO82 — General-purpose I/O / EM1D31 |
| Chân 102 | GPIO83 — General-purpose I/O / EM1A12 |
| Chân 103 | GPIO84 — General-purpose I/O / EM1A13 |
| Chân 104 | GPIO85 — General-purpose I/O / EM1A14 |
| Chân 105 | GPIO86 — General-purpose I/O / EM1A15 |
| Chân 106 | GPIO87 — General-purpose I/O / EM1A16 |
| Chân 107 | GPIO88 — General-purpose I/O / EM1A17 |
| Chân 108 | GPIO89 — General-purpose I/O / EM1A18 |
| Chân 109 | VDDIO — Digital 3.3V I/O supply |
| Chân 110 | VSS — Digital ground |
| Chân 111 | GPIO90 — General-purpose I/O / EM1A19 |
| Chân 112 | GPIO91 — General-purpose I/O / EM1A20 |
| Chân 113 | GPIO92 — General-purpose I/O / EM1A21 |
| Chân 114 | GPIO93 — General-purpose I/O / EM1A22 |
| Chân 115 | GPIO94 — General-purpose I/O / EM1A23 |
| Chân 116 | GPIO95 — General-purpose I/O / EM1CAS |
| Chân 117 | GPIO96 — General-purpose I/O / EM1DQSn |
| Chân 118 | GPIO97 — General-purpose I/O / EM1DQM0 |
| Chân 119 | GPIO98 — General-purpose I/O / EM1DQM1 |
| Chân 120 | GPIO99 — General-purpose I/O / EM1DQM2 |
| Chân 121 | GPIO100 — General-purpose I/O / EM1DQM3 |
| Chân 122 | GPIO101 — General-purpose I/O / EM1CLK |
| Chân 123 | GPIO102 — General-purpose I/O / EM1CLKN |
| Chân 124 | GPIO103 — General-purpose I/O / EM1WEn |
| Chân 125 | GPIO104 — General-purpose I/O / EM1OEn |
| Chân 126 | GPIO105 — General-purpose I/O / EM1RASn |
| Chân 127 | GPIO106 — General-purpose I/O / EM1CS0n |
| Chân 128 | GPIO107 — General-purpose I/O / EM1CS2n |
| Chân 129 | GPIO108 — General-purpose I/O / EM1CS3n |
| Chân 130 | GPIO109 — General-purpose I/O / EM1BA0 |
| Chân 131 | GPIO110 — General-purpose I/O / EM1BA1 |
| Chân 132 | GPIO111 — General-purpose I/O / EM1A0 |
| Chân 133 | GPIO112 — General-purpose I/O / EM1A1 |
| Chân 134 | GPIO113 — General-purpose I/O / EM1A2 |
| Chân 135 | GPIO114 — General-purpose I/O / EM1A3 |
| Chân 136 | GPIO115 — General-purpose I/O / EM1A4 |
| Chân 137 | GPIO116 — General-purpose I/O / EM1A5 |
| Chân 138 | GPIO117 — General-purpose I/O / EM1A6 |
| Chân 139 | GPIO118 — General-purpose I/O / EM1A7 |
| Chân 140 | GPIO119 — General-purpose I/O / EM1A8 |
| Chân 141 | GPIO120 — General-purpose I/O / EM1A9 |
| Chân 142 | GPIO121 — General-purpose I/O / EM1A10 |
| Chân 143 | GPIO122 — General-purpose I/O / EM1A11 |
| Chân 144 | GPIO123 — General-purpose I/O / EM1WAITn |
| Chân 145 | VDDIO — Digital 3.3V I/O supply |
| Chân 146 | VSS — Digital ground |
| Chân 147 | GPIO124 — General-purpose I/O / EM1D0 |
| Chân 148 | GPIO125 — General-purpose I/O / EM1D1 |
| Chân 149 | GPIO126 — General-purpose I/O / EM1D2 |
| Chân 150 | GPIO127 — General-purpose I/O / EM1D3 |
| Chân 151 | GPIO128 — General-purpose I/O / EM1D4 |
| Chân 152 | GPIO129 — General-purpose I/O / EM1D5 |
| Chân 153 | GPIO130 — General-purpose I/O / EM1D6 |
| Chân 154 | GPIO131 — General-purpose I/O / EM1D7 |
| Chân 155 | GPIO132 — General-purpose I/O / EM1D8 |
| Chân 156 | GPIO133 — General-purpose I/O / EM1D9 |
| Chân 157 | GPIO134 — General-purpose I/O / EM1D10 |
| Chân 158 | GPIO135 — General-purpose I/O / EM1D11 |
| Chân 159 | GPIO136 — General-purpose I/O / EM1D12 |
| Chân 160 | GPIO137 — General-purpose I/O / EM1D13 |
| Chân 161 | GPIO138 — General-purpose I/O / EM1D14 |
| Chân 162 | GPIO139 — General-purpose I/O / EM1D15 |
| Chân 163 | GPIO140 — General-purpose I/O / EM1D16 |
| Chân 164 | GPIO141 — General-purpose I/O / McBSP_DR |
| Chân 165 | GPIO142 — General-purpose I/O / McBSP_DX |
| Chân 166 | GPIO143 — General-purpose I/O / McBSP_FSX |
| Chân 167 | GPIO144 — General-purpose I/O / McBSP_CLKX |
| Chân 168 | GPIO145 — General-purpose I/O / TDO |
| Chân 169 | GPIO146 — General-purpose I/O / TDI |
| Chân 170 | GPIO147 — General-purpose I/O / TMS |
| Chân 171 | GPIO148 — General-purpose I/O / TCK |
| Chân 172 | XRSn — Reset input (active low) |
| Chân 173 | VDD — Digital 3.3V supply |
| Chân 174 | VDDOSC — Oscillator 3.3V supply |
| Chân 175 | X1 — Crystal oscillator input |
| Chân 176 | X2 — Crystal oscillator output |
Ứng dụng tiêu biểu
TMS320F28379DPTPS phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TMS320F28379DPTPS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Dual C28x + dual CLA architecture delivers 800 MIPS with hardware DSP parallelism (vsTMS320F28379SPTPT (single-core variant))
- Sigma-delta filter interface for direct connection to isolated delta-sigma modulators (vsTMS320F28377DPTPT (lower-tier dual-core))
- 1 MB flash and 204 KB RAM with ECC for safety-critical code + data storage (vsTMS320F28375DPTPT (mid-tier dual-core))
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
