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NXP Semiconductors MPT612FBD48,151
- Part No.:
- MPT612FBD48,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MPT612FBD48,151.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
MPT612FBD48,151 from NXP Semiconductors is a dedicated maximum power point tracking (MPPT) IC built on an ARM7TDMI-S 32-bit RISC core operating at up to 70 MHz, featuring eight-channel 10-bit ADC with 2.44 µs conversion time per channel, integrated PV voltage/current sense interfaces (PVVOLTSENSEBUCK, PVCURRENTSENSE), and three PWM outputs (PWMOUT0–2) for external switching control in solar photovoltaic charge controllers.
For engineers reviewing the MPT612FBD48,151 datasheet, MPT612FBD48,151 pinout, MPT612FBD48,151 application, or MPT612FBD48,151 equivalent, key selection criteria include its dedicated MPPT algorithm support, 32 kB flash/8 kB SRAM memory architecture, LQFP48 package with 48 pins including analog-sense and PWM-dedicated terminals, and compatibility with buck-mode PV systems requiring real-time DC source optimization.
Technical Context
The MPT612FBD48,151 integrates a patent-pending MPPT algorithm executed on an ARM7TDMI-S core, dynamically extracting maximum power from DC sources such as solar PV panels or fuel cells without user intervention. Its hardware-accelerated sensing includes dedicated analog inputs for PV voltage (buck/boost modes), PV current, battery voltage/current, temperature, and load current - all mapped to internal ADC channels AD3–AD7 and specialized sense pins.
Control execution relies on three independent PWM outputs (PWMOUT0–2) with synchronized frequency but individually adjustable duty cycles, enabling multi-stage DC-DC regulation. The device supports boundary condition configuration via software, with up to 15 kB of flash allocated for application firmware implementing charge cycle algorithms, load management, and battery protection logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ARM7TDMI-S 32-bit RISC processor running at up to 70 MHz; enables real-time MPPT computation with low-latency interrupt response for dynamic solar irradiance changes. |
| ADC Resolution & Speed | 10-bit successive approximation ADC with eight channels; 2.44 µs per channel conversion time minimizes interrupt overhead during concurrent PV/battery sensing. |
| Flash / RAM | 32 kB on-chip flash memory (100,000 erase/write cycles, 20-year retention); 8 kB static RAM; supports field firmware upgrades and runtime parameter storage. |
| PWM Outputs | Three dedicated PWM outputs (PWMOUT0–2); same base frequency but independently configurable duty cycles for multi-phase or cascaded DC-DC control. |
| Analog Sense Inputs | Dedicated pins: PVVOLTSENSEBUCK (buck-mode PV voltage), PVVOLTSENSEBOOST (boost-mode PV voltage), PVCURRENTSENSE (PV current); enable direct connection to shunt/resistor networks without external signal conditioning. |
| Operating Voltage Rails | VDDC = 1.8 V (core), VDD(IO) = 3.3 V (I/O), VDD(ADC) = 3.3 V (ADC reference), VDD(RTC) = 3.3 V (RTC supply); separate analog/digital domains reduce noise coupling in precision sensing. |
| Package | LQFP48 (7 × 7 × 1.4 mm, SOT313-2); 48-pin quad flat package with defined GNDADC/VDD(ADC) isolation for high-accuracy analog measurements. |
Pinout & Package
LQFP48 package (SOT313-2) with 7 × 7 × 1.4 mm body, designed for thermal and electrical isolation of analog sensing paths. Pin 1 marked by dot; pins arranged in four 12-pin sides with dedicated analog ground (GNDADC), analog power (VDD(ADC)), and isolated RTC power (VDD(RTC)) routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVVOLTSENSEBUCK (Pin 32) | PV voltage sense input (buck mode) | Direct interface to PV panel output in buck-converter topologies; referenced to GNDADC for accurate 0–3.3 V measurement range. |
| PVVOLTSENSEBOOST (Pin 33) | PV voltage sense input (boost mode) | Enables boost-mode operation when used; left unconnected in buck-only designs; shares same ADC reference as PVVOLTSENSEBUCK. |
| PVCURRENTSENSE (Pin 34) | PV current sense input | High-impedance analog input for shunt-based current measurement; supports real-time MPPT calculation using instantaneous VI product. |
| PWMOUT0 (Pin 28) | Main switching control output | Dedicated PWM signal for primary external MOSFET/switch driver; not multiplexed - ensures deterministic timing for critical MPPT loop closure. |
| GNDADC (Pin 31) | Analog ground reference | Isolated ground plane connection for ADC and analog sense pins; must be routed separately from digital GND to maintain ≤1 LSB error in 10-bit conversions. |
Key Features
| Feature | Design Value |
|---|---|
| Patent-pending MPPT algorithm | Hardware-accelerated real-time tracking engine executing on ARM7TDMI-S core; eliminates need for external microcontroller or FPGA in standalone solar charge controllers. |
| Dedicated PV sensing interface | Five dedicated analog sense pins (PV voltage buck/boost, PV current, battery voltage/current, temperature) mapped to ADC channels with dedicated result registers - reduces software polling latency. |
| Three synchronized PWM outputs | PWMOUT0–2 share base frequency but support independent duty-cycle adjustment; enables dual-stage DC-DC control (e.g., buck + linear regulator) or redundancy in critical systems. |
| 5 V-tolerant GPIO with glitch filtering | 28 fast GPIO pins (PIO0–PIO30, excluding reserved JTAG pins) support 5 V logic levels when VDD(IO)/VDD(ADC) ≥ 3.0 V; built-in 3 ns pulse rejection prevents false interrupts from EMI. |
| Integrated RTC with independent supply | Low-power RTC powered by VDD(RTC) with dedicated 32 kHz crystal inputs (RTCX1/RTCX2); maintains timekeeping during main power loss for scheduled charge cycles and logging. |
Applications
| Solar Home Battery Charging | LED Street Lighting Power Management |
|---|---|
|
Use Scenario: Off-grid residential lighting and appliance charging using rooftop PV arrays with lead-acid or Li-ion batteries. IC Role / Device Role / Timing Role: Primary MPPT controller managing DC-DC conversion between PV panel and battery; executes charge cycle algorithm with temperature compensation and overvoltage protection. Use Value: Achieves up to 98 % system efficiency by continuously optimizing operating point under variable irradiance and temperature - extending battery life and usable energy yield. |
Use Scenario: Solar-powered LED streetlights with dusk-to-dawn operation and adaptive dimming based on ambient light and battery state. IC Role / Device Role / Timing Role: Integrated MPPT + battery management unit controlling buck converter, LED driver PWM, and RTC-triggered sleep/wake cycles. Use Value: Enables autonomous operation for >5 years without maintenance by combining precise PV harvesting, deep-sleep power modes (<10 µA RTC active), and programmable load shedding. |
| Fuel Cell Auxiliary Power Unit | Microinverter Per-Panel Control |
|
Use Scenario: Backup power generation for telecom towers using proton exchange membrane (PEM) fuel cells with variable output voltage and polarization curves. IC Role / Device Role / Timing Role: MPPT controller adapting to fuel cell's nonlinear I-V characteristics; interfaces with gas flow sensors and stack temperature monitors via ADC inputs. Use Value: Maintains peak power extraction across wide load ranges and aging effects - improving fuel utilization efficiency by up to 12 % compared to fixed-voltage regulation. |
Use Scenario: Distributed DC-DC conversion where each solar panel has its own MPT612FBD48,151-based module feeding a shared AC bus via microinverter. IC Role / Device Role / Timing Role: Panel-level MPPT engine providing optimized DC output to downstream inverter stage; communicates status via I2C to central controller. Use Value: Eliminates string-level mismatch losses; enables per-panel monitoring and fault isolation - increasing total array yield by 15–25 % in shaded or soiled conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar maximum power point tracking applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI BQ76940 | Dedicated battery monitor with integrated ADC and coulomb counting; lacks ARM core, MPPT algorithm, and PV-specific sense pins. | Designed for battery protection only; requires external MCU for MPPT implementation. | Select when full battery management (cell balancing, safety cutoffs) is prioritized over embedded MPPT functionality. |
| STSPIN32F0B | Integrated 3-phase BLDC gate driver + Cortex-M0+ core; no dedicated PV sense inputs or MPPT firmware stack. | Targeted at motor control; MPPT must be implemented entirely in application code with external sensing. | Choose for hybrid solar-pump systems where motor drive and basic MPPT coexist on single chip - but expect 3–6 months additional firmware development. |
Compared with BQ76940 and STSPIN32F0B, the MPT612FBD48,151 delivers turnkey MPPT capability with hardware-optimized sensing and algorithm execution - reducing bill-of-materials count by eliminating external ADCs, level shifters, and discrete PWM drivers required in alternative implementations.
Availability
MPT612FBD48,151 is available at Aetrix Electronics and suitable for solar home systems, LED street lighting deployments, telecom remote power units, and fuel cell auxiliary power applications requiring stable component supply and long-term design continuity.
Supply support for MPT612FBD48,151 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets with over 50 years of mixed-signal IC leadership.
The MPT612 product line was developed as NXP's first dedicated MPPT IC family to address the need for highly integrated, algorithm-embedded controllers in off-grid renewable energy systems - targeting cost-sensitive, high-reliability solar and fuel cell applications.
FAQ
What is the primary function of the MPT612FBD48,151 in a solar PV system?
The MPT612FBD48,151 serves as a dedicated maximum power point tracking controller that dynamically adjusts the operating voltage and current of a photovoltaic panel to extract peak available power under varying irradiance and temperature conditions. It executes a patent-pending MPPT algorithm on its ARM7TDMI-S core and drives external switching devices via PWMOUT0–2, making the MPT612FBD48,151 essential for achieving up to 98 % system efficiency in solar charge controllers.
Does the MPT612FBD48,151 support both buck and boost converter topologies?
Yes, the MPT612FBD48,151 supports both topologies through dedicated analog sense inputs: PVVOLTSENSEBUCK (Pin 32) for buck-mode voltage feedback and PVVOLTSENSEBOOST (Pin 33) for boost-mode operation. When configured for buck-only use, PVVOLTSENSEBOOST remains unconnected. The IC's PWM outputs and internal algorithm adapt to either topology without firmware modification - a key feature distinguishing the MPT612FBD48,151 from generic microcontrollers.
How does the MPT612FBD48,151 handle analog sensing for PV current and voltage?
The MPT612FBD48,151 provides three dedicated analog sense terminals: PVCURRENTSENSE (Pin 34), PVVOLTSENSEBUCK (Pin 32), and PVVOLTSENSEBOOST (Pin 33). These connect directly to precision shunts or resistor dividers with no external amplification needed, as they interface with the internal 10-bit ADC referenced to VDD(ADC) = 3.3 V. Each channel features dedicated result registers and supports burst conversion - ensuring the MPT612FBD48,151 captures synchronized VI data for accurate real-time MPPT calculation.
Can the MPT612FBD48,151 operate without external memory or peripherals?
Yes, the MPT612FBD48,151 is fully self-contained: it integrates 32 kB flash (with 15 kB user-available), 8 kB SRAM, a 10-bit 8-channel ADC, dual UARTs, two Fast I²C buses, SPI/SSP, timers, and RTC - all on-die. No external memory, ADC, or communication transceivers are required for basic MPPT operation. This integration makes the MPT612FBD48,151 suitable for compact, cost-sensitive designs where board space and BOM count are critical constraints.
What power supply requirements must be met for reliable MPT612FBD48,151 operation?
The MPT612FBD48,151 requires three independent supply rails: VDDC = 1.8 V ± 10 % for the core, VDD(IO) = 3.3 V ± 10 % for digital I/O, and VDD(ADC) = 3.3 V ± 10 % as the ADC reference voltage. GNDADC must be isolated from digital GND to prevent noise coupling. Failure to maintain these separate domains degrades ADC accuracy and may cause erratic PWM behavior - a critical consideration in any MPT612FBD48,151 design.
MPT612FBD48,151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM7®
- Core Size:
- 32-Bit Single-Core
- Speed:
- 70MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MPT612FBD48,151 FAQ
1.How can I place an order for MPT612FBD48,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPT612FBD48,151 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 MPT612FBD48,151 reliable?
The price and inventory of MPT612FBD48,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPT612FBD48,151 is usually 5 days.
3.What payment methods are accepted for MPT612FBD48,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPT612FBD48,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPT612FBD48,151?
MPT612FBD48,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPT612FBD48,151 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 MPT612FBD48,151?
For technical support, including MPT612FBD48,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPT612FBD48,151 requirements.
6.How does Aetrix verify that MPT612FBD48,151 is sourced from the original manufacturer or authorized distributors?
All MPT612FBD48,151 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 MPT612FBD48,151 meets industry standards.
7.What is the process for return or replacement of MPT612FBD48,151?
All MPT612FBD48,151 units undergo pre-shipment inspection (PSI). If there is an issue with MPT612FBD48,151, 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 MPT612FBD48,151 part is unused and in its original packaging.
Return procedure for MPT612FBD48,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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