TMS320F28335PTPQ - 32-bit 150MHz C2000 DSC MCU | TI
MPN: TMS320F28335PTPQ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $41.21 | $41.21 |
| 10 | $39.15 | $391.50 |
| 100 | $36.5 | $3,650.00 |
| 500 | $34.2 | $17,100.00 |
| 1,000 | $31.9 | $31,900.00 |
Drop-in alternatives for TMS320F28335PTPQ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SM320F28335PTPMEP
β Drop-Inπ Reference alternative (not in catalog)
TMS320F28335PTPS
β Drop-Inπ Reference alternative (not in catalog)
TMS320F28335PTPA
β Drop-Inπ Reference alternative (not in catalog)
TMS320F28235PTPS
β‘ Same Packageπ Reference alternative (not in catalog)
TMS320F28335PTPQ Maximum Ratings & Electrical Characteristics
| Core Processor | C28x C2000 Delfino |
| Core Size | 32-Bit |
| Maximum Clock Frequency | 150 MHz |
| Performance | 150 MIPS |
| FPU | Yes (single-precision floating point unit) |
| Flash Memory | 512KB (256K x 16) |
| RAM Size | [DATA_NEEDED: SRAM size] |
| ADC Resolution | 12 bit |
| External Memory Interface | EMIF |
| Supply Voltage | 1.9V / 3.3V |
| Operating Temperature | -40C to +125C |
| Qualification | Automotive (AEC-Q100 Grade 1 temperature range) |
| Package | 176-HLQFP (PTP) 24x24 mm, exposed pad |
| Mounting Type | Surface Mount |
| MSL Level | 4 (260C, 72 hours) |
| RoHS Status | Compliant |
| Product Family | TMS320F2833x Digital Signal Controllers (DSCs) |
TMS320F28335PTPQ Pin Configuration
| Pin 1 | VDDIO β 3.3V I/O supply |
| Pin 20 | VDD β 1.9V core supply |
| Pin 33 | XCLKOUT β External clock output |
| Pin 45 | GPIO0/EPWM1A β GPIO / ePWM1 output A |
| Pin 52 | GPIO6/EPWM4A β GPIO / ePWM4 output A |
| Pin 64 | ADCINA0 β ADC input channel A0 |
| Pin 80 | ADCINB0 β ADC input channel B0 |
| Pin 98 | XINTF zone data/address β EMIF external interface signals |
| Pin 120 | SCITXDA β SCI-A transmit |
| Pin 135 | SPI_SIMO β SPI slave-in/master-out |
| Pin 150 | XRS β Reset (bidirectional) |
| Pin 170 | VSS β Ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TMS320F28335PTPQ is suitable for 6 applications: Automotive Traction Inverters, Industrial Servo and Motor Drives, Solar String Inverters and MPPT, Digital Power Supplies and PFC, Electric Power Steering (EPS), Test and Measurement / Data Acquisition.
Automotive Traction Inverters
The TMS320F28335PTPQ fits automotive traction inverter control because its 150 MHz C28x core with hardware FPU closes field-oriented control loops within a single 10-20 kHz PWM period, while -40C to +125C AEC-Q100 Grade 1 range survives under-hood conditions. The 18 ePWM outputs directly drive three-phase gate-driver stages, and the 12-bit ADC samples phase currents for torque computation. Using EMIF, external gate-driver diagnostics or look-up tables can be memory-mapped without CPU overhead, quantifiably reducing control-loop latency versus software fixed-point implementations.
Recommended
Industrial Servo and Motor Drives
In servo drives, the TMS320F28335PTPQ provides the real-time backbone: 150 MIPS executes current, velocity, and position cascades, while eQEP modules decode incremental encoders and eCAP captures Hall sensor edges without CPU intervention. The 512KB flash holds field-weakening and auto-tuning algorithms, and the FPU enables smooth floating-point trajectory generation. Its 68KB-class RAM (per family datasheet) buffers high-rate current sampling, so control bandwidths above 5 kHz are achievable with deterministic latency, a concrete benefit over general-purpose MCUs at similar clock speeds.
Recommended
Solar String Inverters and MPPT
Solar inverters demand simultaneous MPPT and grid-current control; the TMS320F28335PTPQ covers both with its 12-bit, 16-channel ADC sampling DC bus and AC output voltages, and its FPU accelerating incremental-conductance MPPT math. Multiple ePWM modules generate phase-shifted full-bridge and grid-tie PWM with hardware dead-band, removing CPU loading. The EMIF supports external memory for logging, and the 150 MHz core sustains nested 20 kHz control loops. Compared to dual-chip solutions, one DSC consolidates MPPT, inverter control, and grid monitoring, reducing BOM cost and inter-chip latency.
Recommended
Digital Power Supplies and PFC
For digital telecom rectifiers and server PSUs, the TMS320F28335PTPQ implements PFC and LLC control on one die: the 150 MHz core runs averaged current-mode compensation at up to 100 kHz switching frequency, and high-resolution ePWM supports sub-nanosecond phase adjustments. The FPU simplifies adaptive gain scheduling across wide line/load ranges, and on-chip comparators can trip PWM in hardware for cycle-by-cycle protection with sub-microsecond response. EMIF allows connection of external supervisory controllers, making it a drop-in control engine replacing analog compensation networks.
Recommended
Electric Power Steering (EPS)
EPS systems require fail-operational assist control within strict latency budgets; the TMS320F28335PTPQ's 150 MIPS FPU core computes assist torque from rack-force sensors using its 12-bit ADC at 12.5 MSPS-class sampling, while eQEP tracks rotor position for brushless assist motors. Automotive qualification to +125C fits under-dash and engine-bay locations. Its 18 PWM channels support dual-motor column and rack-assist topologies, and the 512KB flash retains calibration tables and diagnostics across power cycles, giving OEMs a field-proven controller with mature functional-safety heritage.
Recommended
Test and Measurement / Data Acquisition
In modular test instruments, the TMS320F28335PTPQ serves as a real-time acquisition engine: the 16-channel 12-bit ADC samples sensor arrays while DMA moves data to the 68KB-class SRAM or external SDRAM via EMIF without core stalls. The 150 MHz FPU performs on-the-fly filtering, FFT windowing, and calibration math, offloading a host processor communicating over SCI or SPI. Deterministic interrupt latency makes trigger timing repeatable at microsecond level. For battery-operated portable instruments, designers trade the 150 MHz performance against higher idle current versus smaller C2000 variants like TMS320F28027.
Recommended
Recommended Products Summary
Engineering reference data for TMS320F28335PTPQ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SM320F28335PTPMEP | TMS320F28335PTPS | TMS320F28235PTPS |
|---|---|---|---|---|
| Package | 176-HLQFP (PTP) 24x24 mm | 176-HLQFP (PTP) - same | 176-HLQFP (PTP) - same | 176-HLQFP (PTP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| CPU Frequency | 150 MHz | 150 MHz | 150 MHz | 150 MHz |
| Flash Memory | 512KB (256K x 16) | 512KB | 512KB | 512KB |
| FPU | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +125C | -55C to +125C | -40C to +85C | -40C to +85C |
| Automotive Qualification | Yes (Q100 temp grade) | Hi-REL (space-grade screening) | No (commercial) | No (commercial) |
| Code Compatibility | Baseline | 100% code compatible | 100% code compatible | Fixed-point code only (no FPU) |
Key Differentiators
- Hardware FPU for floating-point control (vs TMS320F28235PTPS)
- Automotive -40C to +125C range (vs TMS320F28335PTPS)
- Extreme-temperature Hi-REL option (vs SM320F28335PTPMEP)
Design Notes
The TMS320F28335PTPQ requires dual-rail sequencing: a 1.9V core supply and 3.3V I/O supply. TI datasheets require the core rail to reach regulation before or simultaneously with I/O to avoid latch-up risk. Use a dual-output PMIC or sequenced buck converters, and decouple each VDD pin with 0.1uF plus bulk 10uF capacitance. The exposed pad (HLQFP with pad) must be soldered to a ground plane for both thermal and signal-integrity performance.
At 150 MHz full load, junction dissipation can approach 1W class. The 176-HLQFP exposed-pad package relies on the PCB thermal pad for heat spreading; provide at least a 4x4 via array (0.3 mm vias) connecting the pad to internal ground planes. Confirm junction temperature stays below 125C maximum rating at worst-case ambient using TI's thermal design guide for QFP packages.
Flash wait-states must be programmed for 150 MHz operation (per TMS320F2833x datasheet system control chapter); running from flash without correct wait-states causes bus errors. Also configure ADC calibration (ADC_cal in OTP) at boot, and do not exceed 3.63V on VDDIO. MSL 4 requires floor-life control and baking if the dry pack is opened for more than 72 hours before reflow.
Compliance Information
RoHS compliant per PartGenie compliance notes; MSL 4 (260C, 72 HR). Automotive qualification per TI TMS320F28335-Q1 product page. REACH and halogen-free status not stated in verified data.
