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Texas Instruments TPS62877B1QWRZVRQ1
- Part No.:
- TPS62877B1QWRZVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerWFQFN
- Datasheet:
-
TPS62877B1QWRZVRQ1.pdf
- Description:
- IC REG BUCK ADJ 30A 24WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,251
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Product details
Overview
TPS62877B1QWRZVRQ1 from Texas Instruments is a 30A automotive-grade synchronous step-down DC/DC converter with I²C interface, differential remote sense, and fast transient response. It operates from 2.7V–6V input, delivers up to 30A output current, supports ±0.8% output voltage accuracy, and features selectable switching frequencies (1.5–3MHz) for ADAS power rail regulation.
For engineers reviewing the TPS62877B1QWRZVRQ1 datasheet, TPS62877B1QWRZVRQ1 pinout, TPS62877B1QWRZVRQ1 application, or TPS62877B1QWRZVRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to 125°C ambient), forced-PWM/power-save mode control, droop compensation enablement (DROOPEN = 1), and stacked operation support for higher-current systems.
Technical Context
The TPS62877B1QWRZVRQ1 implements a fixed-frequency DCS-Control™ architecture optimized for fast load-transient response in safety-critical automotive domains. Its internal 2.6mΩ high-side and 1.5mΩ low-side MOSFETs enable high-efficiency 30A operation at elevated ambient temperatures, while differential remote sensing (VOSNS/GOSNS) maintains ±0.8% DC output accuracy at the point-of-load.
It integrates an I²C interface (up to 3.4MHz) for real-time voltage/temperature monitoring and dynamic output adjustment, plus hardware-configurable features including FSEL-pin-selectable switching frequency, VSEL-defined startup voltage (0.8V default), and SYNC_OUT daisy-chaining for synchronized multi-phase stacking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 30A continuous - enables single-chip power delivery for high-performance ADAS SoCs and radar processors. |
| Input Voltage Range | 2.7V to 6V - compatible with automotive 3.3V, 5V, and battery-supplied rails including cold-crank conditions. |
| Output Voltage Accuracy | ±0.8% - ensures stable core voltage regulation across temperature and load for functional safety compliance. |
| Switching Frequency | 1.5MHz / 2.25MHz / 2.5MHz / 3MHz - selectable via FSEL pin; allows EMI optimization and inductor size reduction. |
| Droop Compensation | Enabled (DROOPEN = 1) - provides automatic output voltage scaling under load to maintain current sharing in stacked configurations. |
| Thermal Protection | Thermal warning at 150°C junction, shutdown at 170°C - supports robust operation in sealed ECU enclosures. |
| I²C Interface Speed | Up to 3.4MHz (high-speed mode) - enables rapid register access for dynamic voltage scaling and fault reporting. |
Pinout & Package
RZV package: 24-pin WQFN-FCRLF (3.05mm × 4.05mm) with exposed thermal pad soldered to GND for optimal thermal performance (RθJA = 28°C/W on EVM).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOSNS | Differential output voltage sense (+) | Connects to point-of-load positive rail; enables precise remote regulation independent of PCB trace IR drop. |
| GOSNS | Differential output voltage sense (–) | Connects to point-of-load ground return; completes Kelvin sensing path for ±0.8% accuracy. |
| VIN (Pins 5,6,15,16) | Power input supply | Four parallel input pins reduce impedance and thermal stress; requires local 10–22µF ceramic per pin. |
| SW (Pins 9,10,11,12) | Power switch node | High-current switching node connected to internal MOSFETs; requires tight layout with minimal loop area. |
| FSEL | Frequency select input | Resistor-to-GND/VIN sets nominal switching frequency; supports synchronization via MODE/SYNC pin. |
| VSEL | Startup voltage select input | Defines initial output voltage (0.8V default for TPS62877B1QWRZVRQ1); also sets I²C address. |
| MODE/SYNC | Operating mode control | Pull-low = power-save mode; pull-high = forced-PWM; accepts external clock for phase synchronization. |
| SDA / SCL | I²C bidirectional interface | Supports high-speed (3.4MHz) communication for telemetry, configuration, and fault logging. |
| PG | Open-drain power-good output | Asserts high-impedance when output is within ±4% window; used for system sequencing and fault detection. |
| EN | Enable input | Logic-high enables converter; requires ≥15kΩ series resistor; interconnectable for stacked enable coordination. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with 150°C junction rating - meets automotive ECU thermal requirements. |
| Differential remote sensing (VOSNS/GOSNS) | Eliminates PCB trace resistance error, enabling ±0.8% output accuracy at the load - critical for SoC core rail stability. |
| Droop compensation (DROOPEN = 1) | Automatically scales output voltage under load to balance current sharing across stacked converters without external circuitry. |
| Transient non-synchronous mode enabled | Improves light-load efficiency by disabling unnecessary switching cycles while maintaining fast transient recovery capability. |
| Stacked operation support | SYNC_OUT/MODE-SYNC daisy-chain and PG pin interconnection enable seamless multi-device current sharing up to 60A+. |
| Functional safety documentation support | Includes FIT rate data, failure mode analysis, and diagnostic coverage guidance - accelerates ISO 26262 ASIL-B/C system certification. |
Applications
| ADAS Camera Power Supply | Surround View ECU |
|---|---|
Use Scenario: Powers high-resolution image sensors and ISP SoCs in front/rear/side cameras requiring clean, tightly regulated 0.8V–1.2V rails. IC Role / Device Role / Timing Role: Primary 30A buck regulator delivering core voltage with <100µs transient response to burst-mode sensor activity. Use Value: Differential remote sensing maintains ±0.8% accuracy at sensor die, preventing image noise from IR drop; droop compensation enables dual-TPS62877B1 stacking for 60A camera fusion units. |
Use Scenario: Supplies multiple vision processors and FPGA-based stitching engines in 360° surround-view systems. IC Role / Device Role / Timing Role: High-current DC/DC converter operating in forced-PWM mode to minimize output ripple during simultaneous video decode/encode. Use Value: 3MHz switching frequency reduces inductor size for compact ECU designs; I²C interface enables real-time thermal monitoring and dynamic voltage scaling during CPU load spikes. |
| Hybrid Digital Cluster | Head Unit Processor Rail |
Use Scenario: Regulates GPU and display controller voltage in reconfigurable instrument clusters with animated UI and HUD projection. IC Role / Device Role / Timing Role: Automotive-qualified synchronous buck providing 30A at 0.85V with spread-spectrum clocking to suppress EMI near sensitive analog audio paths. Use Value: Thermal warning (150°C) and shutdown (170°C) protect against overheating in confined dashboard spaces; VSEL pin allows factory-programmed startup voltage matching cluster ASIC requirements. |
Use Scenario: Powers application processors (e.g., Qualcomm SA8155) in infotainment head units with dynamic power states. IC Role / Device Role / Timing Role: I²C-configurable buck converter supporting DVFS via real-time output voltage adjustment during performance mode transitions. Use Value: 3.4MHz I²C interface enables sub-100µs voltage updates; soft-start time of 1ms prevents inrush current during cold boot sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62877QWRZVRQ1 | No droop compensation (DROOPEN = 0); default transient non-sync mode disabled; SSTIME = 1ms. | Suitable for single-converter systems where current sharing is not required; lower complexity for basic 30A point-of-load use. | Select TPS62877QWRZVRQ1 when stacked operation is unnecessary and simpler startup behavior is preferred. |
| MPQ8645PGU-AEC1-Z | Monolithic 30A buck with integrated inductor; no I²C interface; fixed 500kHz–2.2MHz frequency; ±1.5% output accuracy. | Targeted at space-constrained modules where BOM count reduction outweighs telemetry and precision needs. | Choose MPQ8645PGU-AEC1-Z for cost-sensitive, low-complexity automotive modules lacking remote diagnostics or dynamic voltage scaling. |
Compared with TPS62877QWRZVRQ1, the TPS62877B1QWRZVRQ1 adds droop compensation and transient non-sync mode for improved stacked-system efficiency and current sharing, while MPQ8645PGU-AEC1-Z trades programmability and accuracy for integration and footprint reduction - making each suitable for distinct architectural priorities.
Availability
TPS62877B1QWRZVRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround-view ECUs, and hybrid digital clusters requiring stable component supply with AEC-Q100 compliance and long-term automotive lifecycle support.
Supply support for TPS62877B1QWRZVRQ1 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 automotive ICs, with decades of automotive qualification expertise and functional safety infrastructure.
The TPS6287x-Q1 product line was designed specifically for high-current, safety-critical automotive power rails - delivering fast transient response, I²C configurability, and robust thermal management for next-generation ADAS and infotainment systems.
FAQ
What is the default startup output voltage of the TPS62877B1QWRZVRQ1?
The TPS62877B1QWRZVRQ1 has a default startup output voltage of 0.8V, set by the VSEL pin configuration (6.2kΩ to GND). This value is factory-trimmed and corresponds to I²C address 0x44. The device supports four resistor-based VSEL options (0.58V–0.875V) or I²C-programmable startup voltage, enabling flexible system-level power sequencing without hardware changes.
Does the TPS62877B1QWRZVRQ1 support stacked operation, and how is it configured?
Yes, the TPS62877B1QWRZVRQ1 supports stacked operation for increased output current or thermal spreading. Configuration requires connecting the SYNC_OUT pin of the primary device to the MODE/SYNC pin of secondary devices, interconnecting EN and PG pins across all units, and tying all COMP pins together with a shared RC network. Droop compensation (DROOPEN = 1) must be enabled to ensure accurate current sharing between stacked converters.
What thermal protection features does the TPS62877B1QWRZVRQ1 provide?
The TPS62877B1QWRZVRQ1 includes thermal warning at 150°C junction temperature (with 20°C hysteresis) and thermal shutdown at 170°C (also with 20°C hysteresis). These thresholds are fixed and internally monitored - no external components required. The thermal warning signal can be read via I²C register access, enabling predictive thermal throttling in host processors before shutdown occurs.
How does the droop compensation feature work in the TPS62877B1QWRZVRQ1?
The TPS62877B1QWRZVRQ1 implements droop compensation by intentionally reducing output voltage linearly with increasing load current - typically ±12mV full-scale - to promote balanced current sharing among stacked converters. Enabled via DROOPEN = 1, this feature eliminates the need for external current-sense resistors or complex master-slave control logic, simplifying high-current system design while maintaining ±0.8% base accuracy at light loads.
What are the supported I²C speeds and timing requirements for the TPS62877B1QWRZVRQ1?
The TPS62877B1QWRZVRQ1 supports I²C standard mode (100kHz), fast mode (400kHz), fast mode plus (1MHz), and high-speed mode up to 3.4MHz. For high-speed operation, capacitive load must be ≤100pF, and rise/fall times are specified at 10–40ns. The device complies with JEDEC JS-001 HBM ESD standards (±2000V), ensuring robustness in noisy automotive environments.
TPS62877B1QWRZVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.4V
- Voltage - Output (Max):
- 1.675V
- Current - Output:
- 30A
- Frequency - Switching:
- 1.5MHz, 2.25MHz, 2.5MHz, 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-WQFN-FCRLF (4.05x3.05)
TPS62877B1QWRZVRQ1 FAQ
1.How can I place an order for TPS62877B1QWRZVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62877B1QWRZVRQ1 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 TPS62877B1QWRZVRQ1 reliable?
The price and inventory of TPS62877B1QWRZVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62877B1QWRZVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62877B1QWRZVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62877B1QWRZVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62877B1QWRZVRQ1?
TPS62877B1QWRZVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62877B1QWRZVRQ1 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 TPS62877B1QWRZVRQ1?
For technical support, including TPS62877B1QWRZVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62877B1QWRZVRQ1 requirements.
6.How does Aetrix verify that TPS62877B1QWRZVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62877B1QWRZVRQ1 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 TPS62877B1QWRZVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62877B1QWRZVRQ1?
All TPS62877B1QWRZVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62877B1QWRZVRQ1, 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 TPS62877B1QWRZVRQ1 part is unused and in its original packaging.
Return procedure for TPS62877B1QWRZVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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