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Texas Instruments BQ500211ARGZR
- Part No.:
- BQ500211ARGZR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
BQ500211ARGZR.pdf
- Description:
- IC WIRELESS PWR TX 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,723
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Product details
Overview
BQ500211ARGZR from Texas Instruments is a WPC 1.1–compliant wireless power transmitter manager IC for 5-V systems, implementing intelligent digital control of phase-shifted full-bridge power stages, integrated foreign object detection (FOD), parasitic metal object detection (PMOD), and Dynamic Power Limiting™ (DPL) for USB-limited sources. It operates from –40°C to 110°C in a 7 mm × 7 mm VQFN-48 package and targets Qi-certified smartphone charging surfaces.
For engineers reviewing the BQ500211ARGZR datasheet, BQ500211ARGZR pinout, BQ500211ARGZR application, or BQ500211ARGZR equivalent, key selection considerations include WPC 1.1 compliance status, dual-input digital demodulation (COMM_A±/COMM_B±), FOD/PMOD threshold programmability via LOSS_THR/LED_MODE pins, DPWM_A/DPWM_B timing control, and thermal shutdown via T_SENSE input.
Technical Context
The BQ500211ARGZR implements closed-loop wireless power regulation by digitally demodulating amplitude-modulated packets from WPC-compliant receivers using dual differential inputs (COMM_A± and COMM_B±), enabling robust communication under variable coupling conditions. It computes real-time efficiency via synchronous sampling of V_SENSE and I_SENSE to trigger FOD/PMOD fault responses when unaccounted loss exceeds the resistor-programmed LOSS_THR threshold.
Its control architecture integrates a 12-bit ADC, LED driver logic, buzzer outputs (BUZ_AC/BUZ_DC), and MSP430 co-processor interface signals (MSP_CLK/MSP_MISO/MSP_RST), while generating two independent PWM outputs (DPWM_A/DPWM_B) with externally managed deadtime for phase-shifted full-bridge gate driving.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| WPC Compliance | WPC 1.1 compliant, supporting Type A5 (magnetic positioning guide) and Type A11 (no guide) transmitter specifications. |
| Operating Voltage | 3.0 V to 3.6 V on both V33A (analog) and V33D (digital) supplies - requires separate decoupling per rail. |
| Switching Frequency | 112 kHz to 205 kHz - dynamically adjusted for power regulation; fixed 50% duty cycle until 205 kHz reached. |
| FOD/PMOD Detection | Resistor-programmable loss threshold (250 mW to 850 mW) via LOSS_THR pin; supports separate FOD/PMOD thresholds using PMOD/FOD pins. |
| Thermal Range | –40°C to +110°C junction temperature - validated for automotive-grade ambient environments. |
| Input Sensing | V_SENSE (voltage divider input) and I_SENSE (20-mΩ sense resistor + 50× gain amplifier) enable real-time input power calculation. |
| Digital Demodulation | Dual-channel (COMM_A±/COMM_B±) with 1-mV resolution and 0.5–3 MΩ input impedance - eliminates external analog front-end components. |
Pinout & Package
Package: 48-pin VQFN (RGZ), 7.00 mm × 7.00 mm, exposed thermal pad (EPAD) requiring GND flood and stitching vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DPWM_A / DPWM_B | Full-bridge PWM outputs | Drive high-side/low-side gates of phase-shifted full-bridge; deadtime must be externally generated. |
| COMM_A+, COMM_A-, COMM_B+, COMM_B- | Digital demodulation inputs | Dual differential receiver inputs for WPC packet decoding; support parallel connection for noise immunity. |
| V_SENSE / I_SENSE | Power monitoring inputs | Enable real-time input power calculation for FOD/PMOD; V_SENSE uses 76.8-kΩ/10-kΩ divider, I_SENSE uses 20-mΩ shunt. |
| LOSS_THR / LED_MODE | Option-select programming pins | Resistor-programmed bins set FOD/PMOD loss threshold (250–850 mW) and LED indication mode (4 user-selectable schemes). |
| T_SENSE | Thermal shutdown input | Device shuts down if voltage drops below 1.0 V - compatible with NTC-based temperature sensing networks. |
| SLEEP | Low-power ping output | Signals start of low-power polling cycle when no receiver is detected - reduces standby current. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Power Limiting™ (DPL) | Two-mode operation (USB 500 mA constant or dynamic droop-sensing) via LoPWR pin - prevents brownout on weak 5-V sources. |
| Integrated Digital Demodulation | Eliminates external op-amps, comparators, and envelope detectors - reduces BOM count and layout sensitivity. |
| Programmable FOD/PMOD Threshold | Single 1% resistor on LOSS_THR pin selects 13 loss bins (250–850 mW); optional separate FOD/PMOD resistors via PMOD/FOD pins. |
| Dual LED/Buzzer Indication | Direct-drive outputs (MSP_RST/LED_A, MSP_MISO/LED_B, BUZ_AC, BUZ_DC) with 4 configurable LED modes - enables user feedback without MCU. |
| Thermal Shutdown Interface | T_SENSE pin accepts voltage divider output from NTC thermistors - allows system-level thermal protection at board level. |
Applications
| Qi-Certified Smartphone Charging Pad | Hermetically Sealed Medical Tool Charger |
|---|---|
|
Use Scenario: Tabletop wireless charger for smartphones with Qi certification and LED status feedback. IC Role / Device Role / Timing Role: Transmitter manager controlling full-bridge power stage, demodulating receiver packets, and enforcing WPC 1.1 FOD/PMOD safety limits. Use Value: Enables single-chip compliance with WPC 1.1 safety requirements while reducing component count versus analog demodulator solutions. |
Use Scenario: Wireless charging inside sealed surgical instrument housings where connectors are prohibited. IC Role / Device Role / Timing Role: Isolated transmitter controller managing power transfer through non-penetrating enclosure walls using magnetic coupling. Use Value: Eliminates mechanical wear and moisture ingress risks associated with physical connectors while maintaining safety-critical FOD response. |
| Automotive In-Car Wireless Charging Console | Industrial Handheld Tool Docking Station |
|
Use Scenario: Integrated center-console charger in vehicles with wide ambient temperature range (–40°C to +85°C). IC Role / Device Role / Timing Role: High-temperature–rated transmitter IC performing real-time efficiency monitoring and thermal shutdown via T_SENSE. Use Value: Sustains reliable operation across automotive thermal cycles without derating, supported by 110°C max junction rating. |
Use Scenario: Ruggedized docking station for cordless industrial tools requiring fast, connectorless recharging. IC Role / Device Role / Timing Role: Transmitter controller with DPL support for shared 5-V USB-C PD input and LED fault signaling for maintenance staff. Use Value: Allows safe multi-device charging from limited-input sources while providing immediate visual diagnostics for field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power transmitter manager applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ500212ARGZR | Successor device with enhanced ESD ratings, updated FOD algorithm, and identical pinout/package. | Supports newer WPC 1.2–aligned features and improved interoperability with latest Qi receivers. | Select when new designs require extended lifecycle support and tighter FOD tolerance margins. |
| BQ51013BRGER | Receiver-side companion IC - not functionally interchangeable; lacks transmitter control, DPWM outputs, and FOD logic. | Used on device side only; requires pairing with a transmitter like BQ500211ARGZR for full system operation. | Choose only as part of a complete transmitter-receiver pair - not a drop-in replacement. |
Compared with BQ500211ARGZR, BQ500212ARGZR offers documented WPC 1.2 readiness and higher ESD immunity but shares identical functional scope and layout compatibility, whereas BQ51013BRGER serves a complementary role in the power transfer chain and cannot replace transmitter functionality.
Availability
BQ500211ARGZR is available at Aetrix Electronics and suitable for Qi-certified smartphone charging pads, hermetically sealed medical tool chargers, and automotive in-car wireless consoles requiring stable component supply and long-term industrial availability.
Supply support for BQ500211ARGZR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.
The BQ500211ARGZR belongs to TI's Wireless Power Transmitter family, designed specifically to simplify WPC-compliant transmitter implementation with integrated digital control, safety monitoring, and minimal external component count.
FAQ
Is BQ500211ARGZR still recommended for new designs?
No, BQ500211ARGZR is marked "Not Recommended for New Designs" per its official TI datasheet (SLUSBB1B, June 2016 revision). While fully functional and supported for existing production, TI recommends BQ500212ARGZR for new implementations due to enhanced ESD performance and updated WPC alignment. BQ500211ARGZR remains available for legacy program continuity and repair fulfillment.
What is the purpose of the LOSS_THR pin on BQ500211ARGZR?
The LOSS_THR pin on BQ500211ARGZR sets the power-loss threshold used by both Foreign Object Detection (FOD) and Parasitic Metal Object Detection (PMOD) algorithms. A resistor between LOSS_THR and GND selects one of 13 predefined loss bins (250 mW to 850 mW); this value determines how much unaccounted power loss triggers a safety shutdown during wireless charging.
Can BQ500211ARGZR operate from a standard USB 5-V port?
Yes, BQ500211ARGZR supports USB 5-V operation via its Dynamic Power Limiting™ (DPL) feature. Pulling the LoPWR pin to GND configures constant 500 mA input current limiting, while leaving it at 3.3 V enables dynamic droop-sensing mode - both ensure safe operation from USB ports without overloading the source.
Does BQ500211ARGZR require an external microcontroller?
No, BQ500211ARGZR integrates all core transmitter control functions - including digital demodulation, FOD/PMOD, DPL, LED/buzzer drivers, and DPWM generation - eliminating the need for an external MCU. An optional MSP430 can be connected via SPI pins (MSP_CLK/MSP_MISO/etc.) for advanced customization, but it is not required for basic WPC 1.1 operation.
What package type and thermal characteristics does BQ500211ARGZR use?
BQ500211ARGZR uses a 48-pin VQFN (RGZ) package measuring 7.00 mm × 7.00 mm with an exposed thermal pad. Its thermal metrics include RθJA = 28.4°C/W, RθJC(bot) = 1.4°C/W, and ψJB = 5.3°C/W - confirming suitability for high-efficiency thermal transfer to PCB ground planes in compact wireless charging designs.
BQ500211ARGZR 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)
BQ500211ARGZR FAQ
1.How can I place an order for BQ500211ARGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ500211ARGZR 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 BQ500211ARGZR reliable?
The price and inventory of BQ500211ARGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ500211ARGZR is usually 5 days.
3.What payment methods are accepted for BQ500211ARGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ500211ARGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ500211ARGZR?
BQ500211ARGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ500211ARGZR 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 BQ500211ARGZR?
For technical support, including BQ500211ARGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ500211ARGZR requirements.
6.How does Aetrix verify that BQ500211ARGZR is sourced from the original manufacturer or authorized distributors?
All BQ500211ARGZR 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 BQ500211ARGZR meets industry standards.
7.What is the process for return or replacement of BQ500211ARGZR?
All BQ500211ARGZR units undergo pre-shipment inspection (PSI). If there is an issue with BQ500211ARGZR, 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 BQ500211ARGZR part is unused and in its original packaging.
Return procedure for BQ500211ARGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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