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Texas Instruments TMS320LF2402PGS
- Part No.:
- TMS320LF2402PGS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-BQFP
- Datasheet:
-
TMS320LF2402PGS.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:969
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Product details
Overview
TMS320LF2402PGS from Texas Instruments is a 30-MIPS, 32-bit fixed-point DSP controller optimized for digital motor control, featuring a 33-ns instruction cycle time (30 MHz), 3.3-V core supply, 8-channel 10-bit ADC with 500 ns minimum conversion time, and a single Event Manager (EVA) with six PWM outputs and three capture units. It serves as the real-time control unit in brushless DC and stepper motor drives.
For engineers reviewing the TMS320LF2402PGS datasheet, TMS320LF2402PGS pinout, TMS320LF2402PGS application, or TMS320LF2402PGS equivalent, key selection criteria include its 64-pin QFP package, absence of CAN/SPI/external memory interface, dual-access RAM architecture, and NRND status requiring legacy design support planning.
Technical Context
The TMS320LF2402PGS implements the TMS320C2xx DSP CPU core with code compatibility to C242/F241/F243 and module compatibility to C240/F240. Its single Event Manager (EVA) integrates two 16-bit general-purpose timers, six compare/PWM outputs, three capture inputs, and quadrature encoder pulse (QEP) support for position sensing.
It features a 10-bit ADC with twin 8-input autosequencers triggered by EVA, enabling synchronized sampling without CPU overhead. The PLL-based clock generator supports 30-MHz operation from external crystal or clock input, while power management includes three low-power modes and per-peripheral shutdown capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | TMS320C2xx DSP CPU - enables deterministic real-time motor control with 30-MIPS throughput at 30 MHz. |
| Instruction Cycle Time | 33 ns - guarantees sub-microsecond timing resolution for high-frequency PWM generation and current-loop control. |
| On-Chip Flash Memory | 8K words × 16 bits - provides reprogrammable nonvolatile storage for field-upgradable motor control firmware. |
| RAM Configuration | 544 words dual-access RAM + 512 words single-access RAM - supports concurrent CPU and peripheral access for zero-wait-state ADC buffering and PWM update. |
| ADC Resolution & Speed | 10-bit, 500 ns min conversion - delivers 2 MSPS effective sampling rate for fast current/voltage feedback in servo loops. |
| PWM Channels | 6-channel (EVA only) - sufficient for 3-phase inverter control with programmable deadband to prevent shoot-through faults. |
| Package | 64-pin QFP (PG) - compact footprint suitable for space-constrained motor drive PCBs with standard surface-mount assembly. |
Pinout & Package
64-pin Quad Flatpack (QFP) package with 0.5-mm lead pitch, compliant with JEDEC MS-026. Power supply pins include VDD (3.3 V), VDDO (3.3 V I/O), VSS/VSSO (digital ground), VCCA/VSSA (isolated analog supply/ground), and VCCP (5 V for Flash programming).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CAP1/QEP1/IOPA3 | Capture input #1 / QEP channel A | Edge-triggered timestamping of encoder pulses; enables precise rotor position tracking in BLDC commutation. |
| PWM1–PWM6/IOPA6–IOPB3 | Compare/PWM outputs (EVA) | Drive gate drivers for 3-phase inverter legs; each output supports center- or edge-aligned modulation. |
| XINT2/ADCSOC/IOPD0 | External interrupt / ADC start-of-conversion | Synchronizes ADC sampling to PWM zero-crossing events for current-sensing in motor phase legs. |
| ADCIN00–ADCIN07 | Analog input channels (8 total) | Accept ±3.3 V differential or single-ended signals for motor current, bus voltage, and temperature sensing. |
| PDPINTA | Power drive protection interrupt | Falling-edge-triggered fault signal that forces all six PWM outputs into high-impedance state during overcurrent events. |
| XTAL1/CLKIN & XTAL2 | Crystal oscillator inputs | Supports 4–20 MHz crystal; internal PLL multiplies to generate stable 30-MHz system clock. |
Key Features
| Feature | Design Value |
|---|---|
| Single Event Manager (EVA) | Integrates 2 GP timers, 6 PWM outputs, 3 capture units, and QEP logic - eliminates need for external timing ICs in basic motor control. |
| Flash Boot ROM | 256-word boot ROM with SCI/SPI bootloader - enables in-system firmware updates without external programmer hardware. |
| Dual-Access RAM | 544 words accessible simultaneously by CPU and peripherals - prevents pipeline stalls during ADC-to-PWM data transfer. |
| Programmable Deadband | Configurable delay (0–15.5 µs) inserted between complementary PWM pairs - ensures safe switching in half-bridge topologies. |
| JTAG Emulation | IEEE 1149.1-compliant scan path - supports real-time debugging of motor control algorithms without halting execution. |
Applications
| Brushless DC Motor Drive | Stepper Motor Controller |
|---|---|
|
Use Scenario: Closed-loop speed and torque control of BLDC motors in HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time commutation sequencer and current-loop regulator executing FOC or six-step algorithms at 10–20 kHz PWM frequency. Use Value: Six integrated PWM outputs with programmable deadband eliminate external gate driver logic and reduce BOM count by 3+ components. |
Use Scenario: Microstepping control of bipolar stepper motors in medical infusion pumps and lab automation stages. IC Role / Device Role / Timing Role: High-resolution position interpolator generating phase currents via PWM-modulated H-bridge drivers. Use Value: Twin 8-input ADC sequencers synchronize current sampling to microstep transitions, improving torque ripple below 1% THD. |
| Industrial AC Induction Drive | Power Converter Supervisor |
|
Use Scenario: Sensorless vector control of 3-phase induction motors in conveyor systems and compressors. IC Role / Device Role / Timing Role: Voltage-source inverter controller implementing space-vector PWM and flux estimation in <10 µs loop time. Use Value: 500 ns ADC conversion enables full 3-phase current sampling within one PWM period at 15 kHz switching frequency. |
Use Scenario: Fault-monitoring unit in solar microinverters detecting DC arc faults and grid synchronization loss. IC Role / Device Role / Timing Role: Dedicated supervisor MCU monitoring analog inputs and triggering PDPINTA-driven PWM shutdown within 200 ns. Use Value: Dedicated PDPINTA pin with hardware-level response bypasses software latency, meeting IEC 62109 fast-fault requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320LF2402A | Pin-compatible A-version with extended temperature range (−40°C to 85°C) and updated ADC timing parameters; replaces LF2402 in new designs. | Required for production releases needing guaranteed long-term availability and improved ADC test conditions. | Select when designing new motor control products requiring TI's current-generation qualification and support roadmap. |
| TMS320LF2403PGS | Same 64-pin QFP package and EVA-only peripheral set, but adds CAN 2.0B module and enhanced boot ROM; no SPI or external memory interface. | Suitable for distributed motor nodes requiring CAN bus communication in multi-axis systems. | Choose when adding networked diagnostics or firmware updates over CAN without increasing PCB footprint. |
Compared with TMS320LF2402PGS, the LF2402A offers lifecycle assurance and tighter ADC specifications, while the LF2403PGS adds CAN connectivity at identical packaging-neither provides SPI or external memory, preserving layout compatibility for cost-sensitive upgrades.
Availability
TMS320LF2402PGS is available at Aetrix Electronics and suitable for legacy motor control, industrial automation, and power converter applications requiring stable component supply amid ongoing NRND transition planning.
Supply support for TMS320LF2402PGS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal processing technologies for industrial, automotive, and communications markets.
The TMS320LF240x family was designed specifically for cost-sensitive, high-reliability digital motor control applications-integrating event managers, precision ADCs, and real-time DSP cores into single-chip solutions for AC induction, BLDC, and stepper systems.
FAQ
Is TMS320LF2402PGS still recommended for new designs?
No, TMS320LF2402PGS is NOT RECOMMENDED FOR NEW DESIGNS (NRND) per TI's SPRS094I datasheet revision history. It has been superseded by the TMS320LF2402A, which offers extended temperature support and updated electrical specifications. For new projects, engineers should evaluate the LF2402A or newer C2000™ Piccolo™ series alternatives while maintaining TMS320LF2402PGS for legacy production continuity.
What is the maximum ADC sampling rate achievable with TMS320LF2402PGS?
The TMS320LF2402PGS achieves a minimum 500 ns conversion time, enabling up to 2 million samples per second (MSPS) in burst mode. With its twin 8-input autosequencers triggered by the Event Manager, it can complete 16-channel conversions in a single session without CPU intervention-critical for simultaneous three-phase current measurement in motor control loops.
Does TMS320LF2402PGS support CAN or SPI interfaces?
No, TMS320LF2402PGS does not include CAN or SPI modules. Unlike the LF2406 and LF2407 variants, the LF2402PGS omits both the Controller Area Network (CAN) 2.0B module and the 16-bit Serial Peripheral Interface (SPI). Its serial communication capability is limited to the asynchronous Serial Communications Interface (SCI) only.
What is the function of the VCCP pin on TMS320LF2402PGS?
The VCCP pin on TMS320LF2402PGS supplies 5 V exclusively for Flash memory programming operations. During normal operation, it may be tied to GND or left connected to 5 V; it must never float. This pin is a no-connect (NC) on ROM variants and is absent in the LF2402A replacement, reflecting TI's shift toward factory-programmed Flash or mask ROM configurations.
How many PWM outputs does TMS320LF2402PGS provide, and what are their key timing features?
TMS320LF2402PGS provides six PWM outputs (PWM1–PWM6) through its single Event Manager (EVA). These support center-aligned or edge-aligned modulation, programmable deadband insertion (0–15.5 µs), and emergency shutdown via the PDPINTA pin. All six outputs are synchronized to a common time base, enabling precise three-phase inverter control with minimal phase skew.
TMS320LF2402PGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-BQFP
- Series:
- C2000™ C24x 16-Bit
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C2xx DSP
- Core Size:
- 16-Bit
- Speed:
- 30MHz
- Connectivity:
- SCI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 16KB (8K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320LF2402PGS FAQ
1.How can I place an order for TMS320LF2402PGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320LF2402PGS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMS320LF2402PGS reliable?
The price and inventory of TMS320LF2402PGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320LF2402PGS is usually 5 days.
3.What payment methods are accepted for TMS320LF2402PGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320LF2402PGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320LF2402PGS?
TMS320LF2402PGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320LF2402PGS order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMS320LF2402PGS?
For technical support, including TMS320LF2402PGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320LF2402PGS requirements.
6.How does Aetrix verify that TMS320LF2402PGS is sourced from the original manufacturer or authorized distributors?
All TMS320LF2402PGS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMS320LF2402PGS meets industry standards.
7.What is the process for return or replacement of TMS320LF2402PGS?
All TMS320LF2402PGS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320LF2402PGS, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMS320LF2402PGS part is unused and in its original packaging.
Return procedure for TMS320LF2402PGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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