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Texas Instruments TPS62874B1QWRZVRQ1
- Part No.:
- TPS62874B1QWRZVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerWFQFN
- Datasheet:
-
TPS62874B1QWRZVRQ1.pdf
- Description:
- IC REG BUCK ADJ 15A 24WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,972
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Product details
Overview
TPS62874B1QWRZVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 15A output current, supporting 2.7V–6V input and 0.4V–1.675V programmable output voltage with ±0.8% DC accuracy, differential remote sensing, and I²C interface for dynamic voltage scaling in ADAS camera power rails.
For engineers reviewing the TPS62874B1QWRZVRQ1 datasheet, TPS62874B1QWRZVRQ1 pinout, TPS62874B1QWRZVRQ1 application, or TPS62874B1QWRZVRQ1 equivalent, key selection criteria include its 15A rated current, forced-PWM/Power-Save mode control via MODE/SYNC, DROOPEN=1 droop compensation enablement, transient non-sync mode ON, and RZV (WQFN-FCRLF-24) package with thermal pad grounding.
Technical Context
The TPS62874B1QWRZVRQ1 implements a fixed-frequency DCS-Control architecture optimized for fast load-transient response in automotive environments, with integrated 2.6mΩ high-side and 1.5mΩ low-side MOSFETs enabling high efficiency at 125°C ambient. Its differential remote sense (VOSNS/GOSNS) maintains ±0.8% output regulation at point-of-load under varying PCB IR drop.
Switching frequency is selectable via FSEL pin (1.5/2.25/2.5/3 MHz) or external synchronization; I²C interface supports up to 3.4 MHz operation for real-time telemetry including voltage monitoring, thermal pre-warning (150°C), and thermal shutdown (170°C). DROOPEN=1 enables active droop compensation for stacked configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 15A continuous - supports high-power ADAS SoCs without external current sharing circuitry. |
| Input Voltage Range | 2.7V to 6V - compatible with 3.3V, 5V, and automotive 12V-derived intermediate rails. |
| Output Voltage Accuracy | ±0.8% DC - ensures stable core voltage for safety-critical processors under full temperature range (–40°C to 150°C junction). |
| Switching Frequency | Selectable 1.5/2.25/2.5/3 MHz - enables compact magnetics and EMI optimization while maintaining >90% peak efficiency. |
| I²C Interface Speed | Up to 3.4 MHz (High-Speed mode) - allows rapid VOUT reprogramming during dynamic performance scaling. |
| Droop Compensation | Enabled (DROOPEN = 1) - provides automatic output voltage adjustment proportional to load current for accurate bus voltage sharing in stacked operation. |
| Thermal Protection | Thermal warning at 150°C, shutdown at 170°C - meets ASIL-B functional safety requirements for automotive power stages. |
Pinout & Package
RZV package: 24-pin WQFN-FCRLF (3.05mm × 4.05mm) with exposed thermal pad requiring solder connection to GND for optimal thermal resistance (RθJB = 6.5°C/W) and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOSNS | Differential output voltage sense positive | Connects to point-of-load VOUT+ for precision regulation; rejects PCB trace resistance error. |
| GOSNS | Differential output voltage sense negative | Connects to point-of-load GND return path; enables true Kelvin sensing of load voltage. |
| EN | Enable control input | Logic-high (>0.97V) enables converter; requires ≥15kΩ series resistor per AEC-Q100 reliability guidelines. |
| FSEL | Frequency select input | Resistor-to-GND/VIN sets switching frequency; supports 1.5/2.25/2.5/3 MHz or external sync. |
| VSEL | Startup voltage select input | Configures default VOUT at startup: 0.8V (6.2kΩ to GND), 0.8V (shorted to GND), 0.875V (shorted to VIN), or 0.8V (47kΩ to VIN). |
| MODE/SYNC | Operating mode control / sync input | Pulled high → Forced-PWM mode; pulled low → Power-Save mode; also accepts external clock for synchronization. |
| SYNC_OUT | Internal clock output | Drives MODE/SYNC of next device in daisy-chained stack; phase-shifted 120° for interleaving. |
| PG | Open-drain power-good indicator | Asserts high-impedance when VOUT is within ±4% window; used for system sequencing and fault detection. |
| COMP | Loop compensation node | External RC network (R-C to AGND) sets control loop stability; shared across stacked devices. |
| SW | Power switch node | Connects to external inductor; carries high di/dt switching current; requires tight layout to minimize EMI. |
| VIN | Main power input (x4 pins) | Four parallel VIN pins reduce IR drop and improve current handling; each requires local 10–22µF ceramic capacitor. |
| GND | Ground (x4 pins + thermal pad) | Four dedicated GND pins plus exposed thermal pad must be soldered to solid ground plane for thermal and EMI integrity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation with 150°C junction limit - suitable for engine bay and ADAS sensor modules. |
| Differential remote sensing | Compensates for up to 100mV IR drop between regulator and load - maintains ±0.8% regulation accuracy at point-of-load. |
| Droop compensation (DROOPEN=1) | Enables precise current sharing in stacked configurations without external current-sense resistors or complex feedback networks. |
| Transient non-sync mode enabled | Disables synchronization during large transients to maximize individual device response speed - improves peak current delivery during CPU burst loads. |
| I²C telemetry and control | Real-time readback of output voltage, temperature, and fault status; supports dynamic VOUT adjustment for DVFS in automotive SoCs. |
| Adjustable soft-start (1ms) | Prevents inrush current during power-up; configurable via register CONTROL2[1:0] for ramp times from 0.35ms to 2.6ms. |
Applications
| ADAS Camera Power Supply | Surround View ECU Core Rail |
|---|---|
Use Scenario: Powers 8MP+ image signal processors (ISPs) and MIPI CSI-2 transceivers in front/rear/side cameras with strict ripple and transient response requirements. IC Role / Device Role / Timing Role: Primary 15A buck converter delivering 0.8V/0.875V core voltage with differential remote sense and I²C-adjustable VOUT for ISP performance scaling. Use Value: ±0.8% DC accuracy and <1µs transient response ensure stable ISP operation during rapid scene changes and LED flash events. |
Use Scenario: Supplies multi-core ARM Cortex-A7x/R5F processors and GPU accelerators in 360° surround-view ECUs requiring coordinated power sequencing and thermal management. IC Role / Device Role / Timing Role: High-current POL regulator with thermal pre-warning (150°C) and I²C telemetry for real-time SoC power state coordination. Use Value: DROOPEN=1 and stacked-mode support allow scalable 30A+ output using two TPS62874B1QWRZVRQ1 units with matched load sharing. |
| Hybrid Digital Cluster | Head Unit Application Processor Rail |
Use Scenario: Delivers clean, dynamically adjustable voltage to reconfigurable display controllers and graphics engines in next-gen digital instrument clusters with OLED/LCD hybrid displays. IC Role / Device Role / Timing Role: I²C-programmable buck converter supporting multiple VOUT profiles (0.7V–1.0375V) for different display modes and brightness levels. Use Value: 3.4 MHz I²C interface enables sub-100µs VOUT updates during display refresh cycles, minimizing visual artifacts. |
Use Scenario: Powers application processors (e.g., Qualcomm SA8155P, NXP i.MX8) in automotive infotainment head units with stringent EMI limits and thermal constraints. IC Role / Device Role / Timing Role: 15A synchronous buck with forced-PWM mode (via MODE/SYNC) and spread-spectrum clocking to meet CISPR-25 Class 5 radiated emissions. Use Value: 3MHz switching frequency + SSC reduces peak EMI by >10dB, eliminating need for additional shielding or ferrites. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62874QWRZVRQ1 | No droop compensation (DROOPEN=0); transient non-sync mode disabled; SSTIME=1ms; default VSEL=0.8V (6.2kΩ to GND) and I²C address 0x44. | Lacks active current-sharing capability in stacked configurations; suited for single-rail, non-redundant applications. | Select TPS62874QWRZVRQ1 when droop compensation and transient non-sync behavior are unnecessary and cost optimization is prioritized. |
| TPS62875B1QWRZVRQ1 | 20A rated output current; identical DROOPEN=1, transient non-sync ON, and SYNC_OUT_PHASE=120° configuration; same RZV package. | Higher current rating supports more demanding SoCs (e.g., radar preprocessing units) without stacking; requires higher-output inductor and PCB copper. | Choose TPS62875B1QWRZVRQ1 when system load exceeds 15A but board space prohibits stacking; verify thermal design for 20A continuous operation. |
Compared with TPS62874QWRZVRQ1, the TPS62874B1QWRZVRQ1 adds droop compensation and transient non-sync mode for improved stacked-system robustness, while TPS62875B1QWRZVRQ1 scales current capacity to 20A in identical footprint-enabling direct upgrade paths without layout change.
Availability
TPS62874B1QWRZVRQ1 is available at Aetrix Electronics and suitable for ADAS camera power supplies, surround view ECU core rails, and hybrid digital cluster applications requiring stable component supply, AEC-Q100 compliance, and functional safety support.
Supply support for TPS62874B1QWRZVRQ1 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 and embedded processing technologies, with decades of automotive-grade power management innovation and ISO/TS 16949-certified manufacturing.
The TPS6287x-Q1 family was designed specifically for high-current, safety-critical automotive domains-including ADAS, digital clusters, and infotainment-delivering fast transient response, I²C configurability, and AEC-Q100 Grade 1 reliability in thermally constrained environments.
FAQ
What is the maximum output current rating of the TPS62874B1QWRZVRQ1?
The TPS62874B1QWRZVRQ1 is rated for 15A continuous output current under recommended operating conditions (TJ ≤ 150°C, proper PCB layout, and thermal management). Its internal 2.6mΩ/1.5mΩ MOSFETs enable this rating even at 125°C ambient temperature, making it suitable for high-power ADAS camera and ECU applications where thermal headroom is limited.
How does the TPS62874B1QWRZVRQ1 implement droop compensation?
The TPS62874B1QWRZVRQ1 implements droop compensation via the DROOPEN=1 configuration, which enables an internal current-proportional voltage offset on the feedback node. This causes the output voltage to decrease linearly with increasing load current, ensuring precise current sharing when multiple TPS62874B1QWRZVRQ1 units are stacked in parallel without external current-sense components.
What are the startup output voltage options for the TPS62874B1QWRZVRQ1?
The TPS62874B1QWRZVRQ1 supports four resistor-configurable startup voltages via the VSEL pin: 0.8V (6.2kΩ to GND), 0.8V (shorted to GND), 0.875V (shorted to VIN), and 0.8V (47kΩ to VIN). All configurations use I²C address 0x44, 0x45, 0x46, or 0x47 respectively - enabling flexible boot-time rail selection without firmware intervention.
Does the TPS62874B1QWRZVRQ1 support external clock synchronization?
Yes, the TPS62874B1QWRZVRQ1 supports external clock synchronization via the MODE/SYNC pin, accepting input frequencies from 1.2MHz to 3.3MHz depending on selected nominal switching frequency (1.5/2.25/2.5/3 MHz). Synchronization enables interleaved operation in stacked configurations, reducing input/output ripple and improving EMI performance across multi-phase systems.
What thermal protection features does the TPS62874B1QWRZVRQ1 include?
The TPS62874B1QWRZVRQ1 includes thermal warning at 150°C (with 20°C hysteresis) and thermal shutdown at 170°C (also with 20°C hysteresis). These thresholds are monitored internally and reported via I²C registers; the thermal warning flag can trigger system-level throttling before shutdown occurs, supporting ASIL-B functional safety requirements in automotive applications.
TPS62874B1QWRZVRQ1 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:
- 15A
- 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)
TPS62874B1QWRZVRQ1 FAQ
1.How can I place an order for TPS62874B1QWRZVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62874B1QWRZVRQ1 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 TPS62874B1QWRZVRQ1 reliable?
The price and inventory of TPS62874B1QWRZVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62874B1QWRZVRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62874B1QWRZVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62874B1QWRZVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62874B1QWRZVRQ1?
TPS62874B1QWRZVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62874B1QWRZVRQ1 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 TPS62874B1QWRZVRQ1?
For technical support, including TPS62874B1QWRZVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62874B1QWRZVRQ1 requirements.
6.How does Aetrix verify that TPS62874B1QWRZVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62874B1QWRZVRQ1 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 TPS62874B1QWRZVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62874B1QWRZVRQ1?
All TPS62874B1QWRZVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62874B1QWRZVRQ1, 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 TPS62874B1QWRZVRQ1 part is unused and in its original packaging.
Return procedure for TPS62874B1QWRZVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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