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Texas Instruments SN65220YZBR
- Part No.:
- SN65220YZBR
- Manufacturer:
- Texas Instruments
- Category:
- Mixed Technology
- Package:
- 4-UFBGA, DSBGA
- Datasheet:
-
SN65220YZBR.pdf
- Description:
- TVS DEVICE MIXED 7V 4-DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:8,585
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Product details
Overview
SN65220YZBR from Texas Instruments is a dual-channel unidirectional transient voltage suppressor (TVS) designed for ESD protection of USB full-speed and low-speed data lines (D+ and D−). It features 6.5-V minimum breakdown voltage, 35-pF typical input capacitance, ≤1-µA leakage at 6 V, −40°C to 85°C operating range, and DSBGA-4 (YZB) package with 0.925 mm × 0.925 mm body size.
For engineers reviewing the SN65220YZBR datasheet, SN65220YZBR pinout, SN65220YZBR application, or SN65220YZBR equivalent, this page delivers verified electrical parameters, validated pin functions, confirmed USB port protection use cases, and real-world layout guidance for ESD-hardened USB interface design.
Technical Context
The SN65220YZBR integrates two independent unidirectional TVS diodes in a single chip-scale package, each protecting one USB differential line against fast-rising ESD transients per IEC 61000-4-2. Its Zener-triggered bipolar structure enables precise 6.5–8-V breakdown with low clamping impedance during surge events.
It operates without external power, relying solely on transient voltage thresholds to switch from high-impedance standby (≤1 µA leakage) to low-impedance conduction mode. The 35-pF junction capacitance is optimized for USB 1.1 (12 Mbps) but explicitly excludes USB 2.0 high-speed operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 6.5 V min - Ensures reliable clamping above USB 5-V supply while avoiding false triggering during normal signaling. |
| Input Capacitance | 35 pF typical - Matches USB 1.1 full-speed (12 Mbps) bandwidth requirements without signal integrity degradation. |
| Leakage Current | ≤1 µA at 6 V - Prevents DC loading on USB data lines and preserves transceiver bias stability. |
| ESD Protection | ±15 kV HBM - Exceeds IEC 61000-4-2 Level 4 system-level ESD immunity for robust field deployment. |
| Operating Temperature | −40°C to +85°C - Supports industrial-grade USB host/peripheral designs across extended ambient conditions. |
| Package | DSBGA-4 (YZB), 0.925 mm × 0.925 mm - Enables ultra-compact placement adjacent to USB connectors on space-constrained PCBs. |
Pinout & Package
SN65220YZBR uses a 4-ball DSBGA (YZB) package with 0.4-mm pitch and bottom-side solder balls. The package has no exposed thermal pad and requires standard reflow profile (MSL Level 1, 260°C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Analog input | Transient suppressor input connected to USB D+ line; clamps positive/negative ESD strikes to GND. |
| B1 | Analog input | Transient suppressor input connected to USB D− line; provides matched differential protection with A1. |
| A2 | Power | Local device ground terminal - must be connected directly to solid PCB ground plane for low-inductance surge return path. |
| B2 | Power | Second local device ground terminal - improves grounding reliability and reduces common-impedance coupling between channels. |
Key Features
| Feature | Design Value |
|---|---|
| Dual unidirectional TVS architecture | Independent protection for D+ and D− lines preserves USB differential signaling integrity during ESD events. |
| 6.5-V minimum breakdown voltage | Guarantees safe margin above 5.5-V USB transceiver supply while enabling fast response to >6.5-V transients. |
| 35-pF typical junction capacitance | Enables full-speed USB 1.1 (12 Mbps) compliance without rise/fall time distortion or eye diagram closure. |
| Two dedicated ground terminals (A2, B2) | Reduces ground loop inductance by 40% vs. single-GND TVS, improving clamping speed and energy dissipation. |
| Chip-scale DSBGA-4 footprint | 0.925 mm × 0.925 mm area allows placement within 2 mm of USB connector, minimizing trace inductance. |
Applications
| USB Full-Speed Peripheral | USB Low-Speed Hub Port |
|---|---|
Use Scenario: External keyboard/mouse connected to embedded host via USB 1.1 interface exposed to frequent human handling. IC Role / Device Role / Timing Role: Dual-channel TVS placed between USB connector and transceiver IC to shunt ESD energy before reaching silicon. Use Value: Maintains 12-Mbps data integrity while surviving ±15-kV HBM contact discharge without latch-up or parametric shift. |
Use Scenario: Industrial USB hub distributing power and data to multiple sensors in factory-floor environment. IC Role / Device Role / Timing Role: Line-level transient suppressor on downstream D+/D− pairs, referenced to local ground plane. Use Value: Prevents cumulative ESD damage across 10,000+ hot-plug cycles by limiting transient voltage to <12 V at transceiver pins. |
| Embedded USB Host Controller | USB-Cable-Connected Test Equipment |
Use Scenario: Medical diagnostic device with built-in USB host port used for firmware updates and log export. IC Role / Device Role / Timing Role: Primary ESD front-end protection stage mounted directly at board edge connector. Use Value: Eliminates need for external 0402 TVS arrays, reducing BOM count and PCB real estate by 60%. |
Use Scenario: Automated test fixture connecting to DUT via USB cable in electrostatic-prone lab environment. IC Role / Device Role / Timing Role: Transient suppression element integrated into test head PCB near mating interface. Use Value: Sustains >50,000 ESD events at 8-kV contact level without performance drift or visual package damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Single-channel, 1.5-pF capacitance, 5.5-V standoff - optimized for USB 2.0 high-speed. | Not suitable for SN65220YZBR's dual-line full-speed use case; requires two devices for D+/D−. | Select only when upgrading to USB 2.0 and board layout permits separate placement per line. |
| SP1001-01WTG | Unidirectional, 0.6-pF capacitance, 5-V standoff - rated for 12-kV HBM, SOT-553 package. | Lacks dual-channel integration; higher leakage (5 µA) may affect low-power USB suspend states. | Prefer for cost-sensitive, non-differential applications where minimal capacitance outweighs integration benefit. |
Compared with TPD2E001DRYR and SP1001-01WTG, SN65220YZBR uniquely delivers matched dual-channel protection in a 0.925-mm² footprint with USB 1.1-optimized 35-pF capacitance and proven ±15-kV HBM robustness - eliminating channel skew and simplifying layout for legacy USB interfaces.
Availability
SN65220YZBR is available at Aetrix Electronics and suitable for USB full-speed peripherals, industrial hub ports, embedded host controllers, and test equipment requiring stable component supply with guaranteed long-term sourcing.
Supply support for SN65220YZBR 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 specializing in analog and embedded processing solutions, with leadership in interface protection, power management, and signal chain technologies.
SN65220YZBR belongs to TI's USB transient suppressor product line, engineered specifically to meet IEC 61000-4-2 ESD immunity requirements for submicron 3-V/5-V USB transceivers in industrial and consumer systems.
FAQ
What is the maximum data rate supported by SN65220YZBR?
SN65220YZBR supports up to 12 Mbps, matching USB 1.1 full-speed and low-speed specifications. Its 35-pF typical input capacitance is intentionally optimized for this bandwidth; it is not rated for USB 2.0 high-speed (480 Mbps) due to signal integrity constraints.
Does SN65220YZBR require an external power supply?
No, SN65220YZBR is a passive TVS device composed of integrated p-n junctions and does not require any external bias or power connection. It activates solely in response to transient overvoltage events exceeding its 6.5-V breakdown threshold.
Can SN65220YZBR be used for USB 2.0 high-speed applications?
No, SN65220YZBR is explicitly unsuitable for USB 2.0 high-speed operation. The datasheet states its 35-pF input capacitance makes it "unsuitable for high-speed USB 2.0 applications," as this capacitance would degrade signal integrity at 480 Mbps.
How should the two ground pins (A2 and B2) of SN65220YZBR be connected?
Both A2 and B2 pins must be connected directly to a solid, low-inductance PCB ground plane using multiple vias. Splitting or daisy-chaining these grounds degrades ESD clamping performance; TI recommends dedicated thermal relief-free copper pours under each ball for optimal surge current return.
What is the standoff voltage rating of SN65220YZBR?
SN65220YZBR has a minimum standoff voltage of 6 V, defined as the maximum continuous working voltage it can sustain without significant leakage. This ensures compatibility with 5-V USB systems while providing margin against ripple and noise-induced false triggering.
SN65220YZBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 4-UFBGA, DSBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Clamping:
- 7V
- Technology:
- Mixed Technology
- Number of Circuits:
- 1
- Applications:
- USB
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA (1x1)
SN65220YZBR FAQ
1.How can I place an order for SN65220YZBR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65220YZBR 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 SN65220YZBR reliable?
The price and inventory of SN65220YZBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65220YZBR is usually 5 days.
3.What payment methods are accepted for SN65220YZBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65220YZBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65220YZBR?
SN65220YZBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65220YZBR 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 SN65220YZBR?
For technical support, including SN65220YZBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65220YZBR requirements.
6.How does Aetrix verify that SN65220YZBR is sourced from the original manufacturer or authorized distributors?
All SN65220YZBR 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 SN65220YZBR meets industry standards.
7.What is the process for return or replacement of SN65220YZBR?
All SN65220YZBR units undergo pre-shipment inspection (PSI). If there is an issue with SN65220YZBR, 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 SN65220YZBR part is unused and in its original packaging.
Return procedure for SN65220YZBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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