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Analog Devices Inc./Maxim Integrated MAX16984AATJB/V+
- Part No.:
- MAX16984AATJB/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX16984AATJB/V+.pdf
- Description:
- AUTOMOTIVE USB-C PROTECTOR/EMULA
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
The MAX16984AATJB/V+ from Analog Devices is an automotive-grade, integrated 5V/3.0A synchronous step-down DC-DC converter with USB host charger emulator and high-ESD USB protection switches. It operates from 4.5V to 28V (with 40V load-dump tolerance), delivers ±15kV air/±8kV contact ESD protection per IEC 61000-4-2 and ISO 10605, supports USB BC1.2 CDP/DCP modes plus Samsung 2.0A and Apple 2.4A charging profiles, and targets automotive radio, navigation, and telematics USB power delivery.
For engineers reviewing the MAX16984AATJB/V+ datasheet, MAX16984AATJB/V+ pinout, MAX16984AATJB/V+ application, or MAX16984AATJB/V+ equivalent, key selection considerations include its 32-pin TQFN package, I²C/resistor-programmable switching frequency (310kHz–2.2MHz), integrated cable compensation feedback, dual-role USB data switch (4Ω RON, 1GHz bandwidth), and automotive-grade thermal operation (−40°C to +125°C).
Technical Context
The MAX16984AATJB/V+ integrates a fully synchronous buck converter with internal high-side (54mΩ typ.) and low-side (72mΩ typ.) MOSFETs, configurable spread-spectrum oscillator for EMI reduction, and SYNC input/output for frequency parking. Its USB interface combines bidirectional 4Ω analog switches (D+/D− ↔ HVD+/HVD−) with integrated BC1.2 port detection, Apple/iPad/iPhone/Samsung charge-mode termination resistors, and ±15kV HVD± ESD protection.
Control architecture includes dual configuration paths: standalone GPIO (CONFIG1–3, DATA_MODE, ENBUCK) and I²C (SCL/SDA) with diagnostics register access. The current-sense amplifier (19.4V/V gain) and SHIELD-input remote feedback loop enable automatic 5V–7V output adjustment to compensate for captive-cable voltage drop in automotive installations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 28V; withstands 40V load-dump transients for automotive battery rail robustness |
| Output Voltage | 5V nominal, adjustable 5V–7V via SHIELD-input feedback for cable-drop compensation |
| Max Output Current | 3.0A continuous at +105°C; 3.5A peak LX RMS rating supports transient headroom |
| USB Switch RON | 4Ω typical; enables Hi-Speed (480Mbps) USB 2.0 pass-through with <1% signal loss |
| ESD Protection | ±15kV air / ±8kV contact on HVD+/HVD− per IEC 61000-4-2 and ISO 10605 |
| Switching Frequency | 310kHz to 2.2MHz, resistor- or I²C-programmable for noise/efficiency/layout trade-off |
| Operating Temp | −40°C to +125°C junction; qualified for under-hood automotive environments |
| Package | 32-pin TQFN (5mm × 5mm × 0.75mm); exposed pad for thermal dissipation |
Pinout & Package
MAX16984AATJB/V+ uses a 32-pin, 5mm × 5mm × 0.75mm thermally enhanced TQFN package with exposed pad (EP) connected to AGND/PGND planes via 3×3 via grid. Pin functions are validated per Analog Devices' official pin description table and schematic reference design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–5, 22–23, 31, EP | AGND / PGND / Exposed Pad | Dual ground domains: AGND for analog/USB circuitry, PGND for power stage; EP provides thermal path to PCB ground |
| 6–7, 9–10 | HVDP/HVDM, DP/DM | High-voltage protected D+/D− outputs and low-voltage D+/D− inputs; enable ESD-safe USB data pass-through |
| 18 | ENBUCK | Hardware enable for buck converter; overrides I²C EN_DCDC command in I²C variants for hub controller compatibility |
| 15–16, 24 | SCL/SDA (CONFIG3/2), CONFIG1 | I²C interface or resistor-programmable configuration inputs for gain, current limit, and cable compensation |
| 29–30 | SENSP / SENSN | Current-sense amplifier inputs; connect across external sense resistor to monitor and limit USB load current |
| 26–27 | SUPSW | Main power input for internal high-side switch and LDO; requires 10μF ceramic + 47μF electrolytic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Buck + USB Emulator | Single-chip solution replaces discrete DC-DC + USB charger IC + protection switches, reducing BOM count and layout area |
| Automotive USB Charging Compliance | Native support for USB BC1.2 CDP/DCP, YD/T 1591-2009, Samsung 2.0A, and Apple 2.4A modes without external components |
| Dynamic Cable Compensation | SHIELD-input feedback loop adjusts VBUS from 5V to 7V in real time to offset IR drop in long captive cables |
| Robust ESD & Fault Protection | ±15kV/±8kV HVD± protection, short-to-battery on DC-DC and USB pins, overtemperature shutdown at 165°C |
| Low-Noise Operation | Spread-spectrum modulation, forced-PWM mode at no load, and SYNC input/output minimize conducted/radiated EMI |
Applications
| Automotive Radio Head Unit | Telematics Control Unit (TCU) |
|---|---|
Use Scenario: Powering USB peripherals (smartphones, dongles) in infotainment head units with long captive cables. IC Role / Device Role / Timing Role: Primary 5V/3A power source and USB host charger emulator with BC1.2/Apple/Samsung detection. Use Value: Eliminates need for separate USB charger IC and ESD protection array while maintaining ±15kV HVD± immunity. | Use Scenario: Providing reliable USB power and data connectivity in vehicle-to-cloud communication modules. IC Role / Device Role / Timing Role: Automotive-grade USB power delivery IC with diagnostics via I²C and thermal warning at 140°C. Use Value: Enables fail-safe USB operation during extended temperature cycling and load-dump events up to 40V. |
| Automotive Navigation System | Dedicated USB Charging Port |
Use Scenario: Supplying stable 5V power to GPS receivers and map-update devices in dashboard-mounted navigation systems. IC Role / Device Role / Timing Role: Synchronous buck regulator with soft-start and skip-mode for low quiescent current in standby. Use Value: Maintains <20μA supply current in off-state and reduces inrush during cold cranking (4.5V start). | Use Scenario: Enabling high-current (up to 3A) charging for tablets and smartphones in rear-seat USB ports. IC Role / Device Role / Timing Role: USB host charger adapter emulator with user-adjustable current limit (±5% accuracy) and 4Ω data switches. Use Value: Delivers full 2.4A Apple charging and 2.0A Samsung charging without external resistors or firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive USB power delivery applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20419ATPA/V+ | Single 5V/3A buck only; no integrated USB emulator, protection switches, or BC1.2 logic | Requires external USB charger IC (e.g., MAX14637) and ESD array for full USB functionality | Select when USB emulation is handled separately and board space allows multi-chip solution |
| TPS65987DQKT | USB-C PD controller with integrated 5V/3A buck; supports USB-C PD 3.0 but lacks BC1.2/Samsung/Apple legacy charging modes | Designed for USB-C ports; not compatible with legacy USB-A host applications requiring BC1.2 detection | Select for next-gen USB-C automotive ports; avoid for USB-A-only designs needing Apple/Samsung fast charge |
Compared with MAX20419ATPA/V+ and TPS65987DQKT, the MAX16984AATJB/V+ uniquely integrates USB-A host charging emulation, 4Ω Hi-Speed switches, and ±15kV HVD± ESD in one AEC-Q100-qualified package-enabling single-chip USB-A power delivery without sacrificing legacy charging compatibility or automotive robustness.
Availability
MAX16984AATJB/V+ is available at Aetrix Electronics and suitable for automotive radio, telematics, and navigation systems requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for MAX16984AATJB/V+ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and consumer markets.
The MAX16984AATJB/V+ belongs to Analog Devices' automotive power management product line, designed specifically to consolidate USB-A host power delivery, charging emulation, and ESD protection into a single AEC-Q100-qualified IC for infotainment and connectivity systems.
FAQ
What is the maximum continuous output current of the MAX16984AATJB/V+ at +105°C?
The MAX16984AATJB/V+ delivers up to 3.0A of continuous output current at +105°C ambient temperature. This rating is validated under standard thermal conditions with proper PCB copper pour and the 32-pin TQFN package's exposed pad thermally connected to multiple GND layers. Derating applies above this temperature per the device's thermal characteristics table.
Does the MAX16984AATJB/V+ support USB On-The-Go (OTG) functionality?
Yes, the MAX16984AATJB/V+ is compatible with the USB On-The-Go specification. Its integrated USB 2.0 data switches (DP/DM ↔ HVDP/HVDM) and host charger emulator logic support SDP (Standard Downstream Port) pass-through mode, enabling bidirectional data flow required for OTG operation in automotive host applications.
How does the MAX16984AATJB/V+ implement cable voltage-drop compensation?
The MAX16984AATJB/V+ implements cable voltage-drop compensation using its SHIELD pin as a remote feedback input. When configured, the internal feedback amplifier adjusts the VBUS output from 5V up to 7V based on the SHIELD voltage level, directly compensating for IR drop across long captive USB cables in automotive installations without requiring external DACs or microcontrollers.
What are the ESD protection ratings for the HVD+ and HVD− pins of the MAX16984AATJB/V+?
The HVD+ and HVD− pins of the MAX16984AATJB/V+ are rated for ±15kV air-gap and ±8kV contact discharge per both IEC 61000-4-2 and ISO 10605 standards, tested in the typical application circuit used on the MAX16984A evaluation kit. This meets stringent automotive ESD requirements for USB interfaces exposed to human contact.
Can the MAX16984AATJB/V+ operate with a 3.3V logic supply for control signals like ENBUCK and IN?
Yes, the MAX16984AATJB/V+ supports 3.3V logic levels on ENBUCK and IN pins. ENBUCK accepts logic-high thresholds down to 1.6V, and IN is explicitly designed to interface with 3.3V USB transceivers - including clamping protection during overvoltage events on HVD+/HVD−. A 1μF ceramic capacitor must be placed close to the IN pin for stability.
MAX16984AATJB/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- -
- Voltage - Input:
- 4.5V ~ 28V
- Number of Outputs:
- 1
- Voltage - Output:
- 5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TQFN (5x5)
MAX16984AATJB/V+ FAQ
1.How can I place an order for MAX16984AATJB/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16984AATJB/V+ 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 MAX16984AATJB/V+ reliable?
The price and inventory of MAX16984AATJB/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16984AATJB/V+ is usually 5 days.
3.What payment methods are accepted for MAX16984AATJB/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16984AATJB/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16984AATJB/V+?
MAX16984AATJB/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16984AATJB/V+ 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 MAX16984AATJB/V+?
For technical support, including MAX16984AATJB/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16984AATJB/V+ requirements.
6.How does Aetrix verify that MAX16984AATJB/V+ is sourced from the original manufacturer or authorized distributors?
All MAX16984AATJB/V+ 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 MAX16984AATJB/V+ meets industry standards.
7.What is the process for return or replacement of MAX16984AATJB/V+?
All MAX16984AATJB/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16984AATJB/V+, 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 MAX16984AATJB/V+ part is unused and in its original packaging.
Return procedure for MAX16984AATJB/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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