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Texas Instruments BQ500410ARGZR
- Part No.:
- BQ500410ARGZR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
BQ500410ARGZR.pdf
- Description:
- IC WIRELESS PWR TX 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,653
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Product details
Overview
BQ500410ARGZR from Texas Instruments is a Qi-compliant wireless power transmitter manager IC designed for free-positioning 12-V systems. It integrates digital demodulation, three-coil array control, parasitic metal and foreign object detection (PMOD/FOD), and LED/buzzer status indication. It operates across –40°C to 110°C and delivers up to 5 W output with >70% efficiency in WPC 1.1–compliant charging surfaces.
For engineers reviewing the BQ500410ARGZR datasheet, BQ500410ARGZR pinout, BQ500410ARGZR application, or BQ500410ARGZR equivalent, key selection considerations include its 48-pin VQFN package, 112–205 kHz switching frequency range, dual analog/digital 3.3-V supplies, integrated 12-bit ADC for loss monitoring, and support for programmable FOD/PMOD thresholds via external resistors.
Technical Context
The BQ500410ARGZR implements a closed-loop Qi-compliant power transfer controller using sequential three-coil ping detection and digital demodulation of receiver AM feedback packets. It regulates power by dynamically adjusting switching frequency while maintaining fixed 50% duty cycle.
Its architecture includes an internal 12-bit ADC for real-time monitoring of V_SENSE, I_SENSE, T_SENSE, LOSS_THR, and LED_MODE; dedicated DPWM_A output for half-bridge drive; and dual COMM input pairs (COMM_A±/COMM_B±) supporting robust signal acquisition under misalignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 112–205 kHz - Enables WPC 1.1–compliant resonance tuning and power regulation via frequency sweep. |
| Operating Temperature | –40°C to 110°C - Supports automotive cabin, industrial, and sealed-tool applications without derating. |
| Supply Voltages | V33D/V33A = 3.0–3.6 V - Separate analog/digital 3.3-V rails reduce noise coupling in sensitive demodulation paths. |
| ADC Resolution | 12-bit - Provides precise measurement of coil voltage, current, temperature, and threshold inputs for FOD/PMOD. |
| Output Power | Up to 5 W - Matches WPC A6 transmitter specification for smartphones and handhelds. |
| Efficiency | >70% typical - Achieved via optimized digital control, low-loss PWM timing, and adaptive coil selection. |
| Package | 48-pin VQFN (7.0 mm × 7.0 mm) - Area-efficient layout with exposed thermal pad (EPAD) for 4.3°C/W junction-to-board resistance. |
Pinout & Package
The BQ500410ARGZR is housed in a 48-pin VQFN (RGZ) package with 7.0 mm × 7.0 mm body size and thermally enhanced EPAD. Pin functions are validated per TI SLUSB96A datasheet Rev. December 2015.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COIL 1.1 / 1.2 / 1.3 | Coil enable outputs | Sequentially activate three independent transmit coils for free-positioning; only one driven at a time. |
| COMM_A± / COMM_B± | Digital demodulation inputs | Dual differential inputs for robust AM packet reception from Qi receivers; support multiplexed coil-synchronized sampling. |
| DPWM_A | PWM output | Drives external half-bridge gate driver; dead time must be externally generated. |
| I_SENSE | Analog current monitor input | Accepts signal from 20-mΩ sense resistor + 50× gain amplifier for real-time input current measurement. |
| V_SENSE | Analog voltage monitor input | Measures transmitter input voltage post-current-sense resistor for accurate power calculation (FOD/PMOD). |
| LOSS_THR | Threshold programming input | Resistor-programmable pin setting FOD/PMOD power-loss detection threshold (250–850 mW bins). |
| MSP_RST/LED1 & MSP_MISO/LED2 | Dual-function I/O | Support standalone LED status indication (green/red) when external MSP430 supervisor is omitted. |
| BUZ_AC / BUZ_DC | Buzzer outputs | Generate 400-ms 4-kHz AC pulse or DC pulse at charge initiation for audible user feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Three-coil free positioning | Enables ≥70 mm × 20 mm charging area with automatic coil selection-no mechanical alignment required. |
| WPC 1.1–compliant digital demodulation | Eliminates external analog demodulator components and improves immunity to EMI in noisy environments. |
| Programmable PMOD/FOD thresholds | Configurable via single resistor on LOSS_THR pin-supports interoperability across diverse Qi receivers. |
| Dual LED/buzzer status signaling | Direct-drive outputs simplify UI design; LED modes include standby, charge-in-progress, fault, and completion. |
| Thermal shutdown via T_SENSE | 1.0-V threshold on pin 2 enables NTC-based overtemperature protection without external comparator circuitry. |
Applications
| Smartphone Charging Pad | Hermetically Sealed Medical Tool Charger |
|---|---|
|
Use Scenario: Tabletop Qi charger for consumer smartphones with no physical connectors. IC Role / Device Role / Timing Role: Transmitter manager performing coil selection, packet demodulation, power regulation, and safety monitoring. Use Value: Enables drop-and-charge usability with automatic alignment-free operation and WPC-certified interoperability. |
Use Scenario: Wireless charging inside IP68-rated surgical hand tools where connectors would compromise sealing. IC Role / Device Role / Timing Role: Isolated power controller managing energy transfer through sealed housing without conductive interfaces. Use Value: Eliminates connector wear/failure and maintains environmental integrity while delivering regulated 5 W. |
| In-Vehicle Dashboard Charger | Industrial Tablet Docking Station |
|
Use Scenario: Integrated wireless charging surface embedded in automotive center console. IC Role / Device Role / Timing Role: High-temp–rated transmitter IC handling wide-input transients and cabin thermal extremes. Use Value: Sustains reliable operation from –40°C cold start to 110°C under-beltline conditions with built-in FOD/PMOD. |
Use Scenario: Ruggedized docking station for factory-floor tablets requiring frequent, connectorless recharging. IC Role / Device Role / Timing Role: Robust power controller detecting metallic debris on charging surface before power engagement. Use Value: Prevents thermal runaway from misplaced tools or fasteners via real-time loss monitoring and shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power transmitter controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ500412ARGZR | Same pinout and feature set but supports extended 15-V input range; higher V_IN tolerance (up to 18 V). | Suitable for 15-V automotive or industrial bus systems where BQ500410ARGZR's 12-V limit is insufficient. | Select BQ500412ARGZR when system input exceeds 12 V nominal; otherwise BQ500410ARGZR remains optimal for cost-sensitive 12-V designs. |
| MP-A20 | Standalone Qi transmitter IC with integrated power stage; no external half-bridge required. | Reduces BOM count but lacks programmable PMOD/FOD thresholds and three-coil flexibility of BQ500410ARGZR. | Choose MP-A20 for simplified single-coil designs; retain BQ500410ARGZR when free positioning, thermal safety, or custom coil layouts are critical. |
Compared with BQ500410ARGZR, BQ500412ARGZR extends input voltage capability for higher-bus systems, while MP-A20 trades configurability for integration-making BQ500410ARGZR the preferred choice for flexible, safety-critical multi-coil implementations.
Availability
BQ500410ARGZR is available at Aetrix Electronics and suitable for smartphone charging pads, hermetically sealed medical tool chargers, and in-vehicle dashboard charging surfaces requiring stable component supply and long-term lifecycle support.
Supply support for BQ500410ARGZR 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 wireless power solutions with decades of automotive and industrial qualification expertise.
The BQ500410ARGZR belongs to TI's wireless power transmitter controller product line, engineered specifically for WPC-compliant free-positioning charging systems requiring high reliability, programmable safety, and thermal resilience.
FAQ
What is the primary function of the BQ500410ARGZR in a wireless charging system?
The BQ500410ARGZR serves as the core transmitter manager IC in Qi-compliant wireless power systems. It performs coil selection, digital demodulation of receiver packets, frequency-based power regulation, and real-time safety monitoring including FOD and PMOD. The BQ500410ARGZR does not integrate power MOSFETs-it drives external half-bridge stages via DPWM_A and manages all control logic for WPC 1.1–certified operation.
Does the BQ500410ARGZR support single-coil or only three-coil configurations?
The BQ500410ARGZR natively supports both configurations. Its default operation uses three independent COIL 1.1/1.2/1.3 outputs for free-positioning, but it can be configured for single-coil use by omitting outer coil circuitry. The datasheet explicitly confirms single-coil compatibility and provides guidance for simplifying the layout-making the BQ500410ARGZR adaptable to cost-sensitive or space-constrained designs without sacrificing WPC compliance.
How does the BQ500410ARGZR implement foreign object detection (FOD)?
The BQ500410ARGZR implements FOD by continuously calculating input power (via V_SENSE and I_SENSE), comparing it against receiver-reported power (from demodulated packets), and triggering shutdown if unaccounted loss exceeds the threshold set by the LOSS_THR pin resistor. It supports both WPC 1.0–style PMOD and more accurate WPC 1.1–compliant FOD using Received Power packets-ensuring robust detection of metallic objects even during dynamic charging conditions.
Can the BQ500410ARGZR operate without an external microcontroller?
Yes-the BQ500410ARGZR is fully autonomous. Pins like MSP_RST/LED1 and MSP_MISO/LED2 provide direct LED status indication without requiring an MSP430 or other host MCU. All core functions-including coil ping sequencing, packet decoding, power regulation, and fault response-are handled internally. External microcontrollers are optional for advanced customization but not necessary for basic WPC-compliant operation of the BQ500410ARGZR.
What thermal protection mechanisms does the BQ500410ARGZR include?
The BQ500410ARGZR features a dedicated T_SENSE input (pin 2) with a fixed 1.0-V shutdown threshold. When voltage drops below this level-e.g., due to an NTC-based voltage divider reaching a preset temperature-the device halts power transfer and asserts fault indicators. This hardware-level thermal cutoff operates independently of software or communication, ensuring fail-safe behavior. The BQ500410ARGZR also includes junction temperature monitoring with 110°C max rating and 4.3°C/W thermal resistance to PCB for passive dissipation.
BQ500410ARGZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Applications:
- Wireless Power Transmitter
- Current - Supply:
- 52mA
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 110°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (7x7)
BQ500410ARGZR FAQ
1.How can I place an order for BQ500410ARGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ500410ARGZR 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 BQ500410ARGZR reliable?
The price and inventory of BQ500410ARGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ500410ARGZR is usually 5 days.
3.What payment methods are accepted for BQ500410ARGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ500410ARGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ500410ARGZR?
BQ500410ARGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ500410ARGZR 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 BQ500410ARGZR?
For technical support, including BQ500410ARGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ500410ARGZR requirements.
6.How does Aetrix verify that BQ500410ARGZR is sourced from the original manufacturer or authorized distributors?
All BQ500410ARGZR 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 BQ500410ARGZR meets industry standards.
7.What is the process for return or replacement of BQ500410ARGZR?
All BQ500410ARGZR units undergo pre-shipment inspection (PSI). If there is an issue with BQ500410ARGZR, 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 BQ500410ARGZR part is unused and in its original packaging.
Return procedure for BQ500410ARGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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