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Texas Instruments TPS650250QRHBRQ1
- Part No.:
- TPS650250QRHBRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TPS650250QRHBRQ1.pdf
- Description:
- IC BAT PWR MGMT LI-ION 1C 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,907
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Product details
Overview
TPS650250QRHBRQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade power management IC (PMIC) integrating three synchronous step-down converters (1.6A/0.8A/0.8A), two 200mA general-purpose LDOs, and one 30mA always-on Vdd_alive LDO - all in a single 32-pin QFN package. It delivers system-level power for Li-ion–powered infotainment, ADAS domain controllers, and telematics modules requiring tightly regulated I/O (3.3V/2.8V), memory (1.8V/2.5V), and processor core (adjustable down to 0.6V) rails.
For engineers reviewing the TPS650250QRHBRQ1 datasheet, TPS650250QRHBRQ1 pinout, TPS650250QRHBRQ1 application, or TPS650250QRHBRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive operating range (–40°C to 125°C), exact converter efficiency curves (up to 97%), and real-world alternative selection guidance - all extracted from TI's official SLVSAA7 production datasheet.
Technical Context
The TPS650250QRHBRQ1 implements three internally synchronized 2.25MHz PWM/PFM step-down converters with adaptive dead-time control and input voltage feed-forward for fast line/load regulation. VDCDC1 (I/O rail) operates at up to 1.6A with ±2% output accuracy; VDCDC2 (memory rail) and VDCDC3 (core rail) each deliver 0.8A with independent enable pins and adjustable outputs via external resistor dividers on DEFDCDC2 and DEFDCDC3.
It integrates dual 200mA LDOs (VLDO1/VLDO2) with 1.0V feedback reference and externally adjustable output (1V–3.3V), plus a dedicated 30mA Vdd_alive LDO with 1.0V fixed output and thermal shutdown at 160°C. All regulators support input voltage range 1.5V–6.5V and feature separate enable controls, soft-start (750ms ramp), and PWRFAIL monitoring via dedicated comparator input (PWRFAIL_SNS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | –40°C to +125°C junction temperature - qualified for under-hood automotive applications per AEC-Q100 Grade 1. |
| VDCDC1 Output Current | 1.6A max at 3.3V/2.8V or adjustable (0.6V–VINDCDC1) - powers high-current I/O peripherals without external boost. |
| VDCDC2/VDCDC3 Current | 0.8A each at 1.8V/2.5V or adjustable - supports DDR memory and low-voltage processor cores with dynamic voltage scaling. |
| Switching Frequency | 2.25MHz typical (1.95–2.55MHz) - enables use of compact 2.2µH inductors and 10–22µF ceramic capacitors. |
| Quiescent Current | 85µA in full PFM mode (all DC-DCs + LDOs active) - extends battery runtime in vehicle sleep modes. |
| Vdd_alive Output | Fixed 1.0V ±1% at 30mA - supplies always-on logic (RTC, wake-up controller) directly from battery without external regulation. |
| Package | 32-pin QFN (RHB), 5mm × 5mm, 0.5mm pitch - thermally enhanced with exposed PowerPad for PCB heat dissipation. |
Pinout & Package
TPS650250QRHBRQ1 uses a 32-pin QFN (RHB) package with exposed thermal pad. Pin functions are validated per TI SLVSAA7 datasheet Section 8 (Terminal Functions). Analog ground (AGND1/AGND2) and power ground (PGND1/PGND2/PGND3) are physically separated to minimize noise coupling between switching and analog sections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINDCDC1 / VINDCDC2 / VINDCDC3 | Input supply for DC-DC converters | All three share same input node (Li-ion battery or pre-regulated rail); must be tied together and decoupled with ≥10µF ceramic. |
| L1 / L2 / L3 | Switch node for DC-DC converters | Connects to inductor high-side terminal; requires low-ESR layout and Kelvin return path to PGND. |
| VDCDC1 / VDCDC2 / VDCDC3 | Feedback sense input | Direct connection to output capacitor; sets regulation point via internal 1V reference and external resistor divider. |
| DEFDCDC1 / DEFDCDC2 | Output voltage configuration | Logic-selectable default (2.8V/3.3V or 1.8V/2.5V); DEFDCDC3 requires resistor divider only - no logic option. |
| EN_DCDC1 / EN_DCDC2 / EN_DCDC3 | Independent enable control | Active-high TTL-compatible inputs; allow sequenced power-up and dynamic rail disabling during low-power states. |
| VLDO1 / VLDO2 / Vdd_alive | LDO output terminals | VLDO1/VLDO2: 200mA, adjustable (1V–3.3V); Vdd_alive: 30mA, fixed 1.0V - all with dedicated enable (EN_LDO/EN_Vdd_alive). |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase synchronized DC-DC operation | VDCDC1 (master), VDCDC2 (180° phase shift), VDCDC3 (90° shift) - reduces input ripple current by >40%, enabling smaller bulk capacitance. |
| Dynamic voltage management (DVM) | VDCDC3 output adjustable in real time via DEFDCDC3 resistor divider - supports processor DVFS without firmware intervention. |
| Power Save Mode (PFM) | Automatic transition below ~100mA load; maintains >85% efficiency at 1mA while drawing only 85µA quiescent current. |
| Integrated PWRFAIL monitoring | Dedicated comparator (PWRFAIL_SNS) with 1.0V threshold and 50mV hysteresis - triggers open-drain PWRFAIL signal for graceful system shutdown. |
| Thermal protection | Junction shutdown at 160°C with 20°C hysteresis - prevents damage during sustained overload or poor heatsinking. |
Applications
| Infotainment Head Unit | ADAS Camera ECU |
|---|---|
Use Scenario: Central display unit powered by single-cell Li-ion battery with requirements for HDMI PHY, audio codec, and touch controller rails. IC Role / Device Role / Timing Role: PMIC providing 3.3V I/O (VDCDC1), 1.8V memory (VDCDC2), 1.2V core (VDCDC3), and 1.0V always-on (Vdd_alive) with sequenced enable timing. Use Value: Eliminates need for four discrete regulators; 2.25MHz switching allows <5mm² total passive area per rail. |
Use Scenario: Front-facing camera module requiring low-noise power for image sensor and ISP, with cold-cranking resilience. IC Role / Device Role / Timing Role: Supplies clean 1.2V core (VDCDC3), 2.8V I/O (VDCDC1), and 1.0V Vdd_alive while monitoring battery sag via PWRFAIL_SNS. Use Value: PFM mode sustains >90% efficiency at 5mA standby; thermal shutdown protects against lens heater-induced overheating. |
| Telematics Control Unit (TCU) | Automotive Gateway |
Use Scenario: Cellular-connected module needing simultaneous LTE modem, GNSS receiver, and CAN transceiver power rails. IC Role / Device Role / Timing Role: Delivers 3.3V (VDCDC1), 1.8V (VDCDC2), and 1.0V (Vdd_alive) with independent EN pins for modem sleep/wake coordination. Use Value: Separate enable control allows modem to enter deep-sleep (VDCDC2 off) while retaining GPS tracking (Vdd_alive + VDCDC3 active). |
Use Scenario: Multi-bus gateway managing CAN FD, Ethernet AVB, and LIN communication with secure boot requirements. IC Role / Device Role / Timing Role: Powers MCU core (VDCDC3), peripheral I/O (VDCDC1), and security co-processor LDO (VLDO1) with fault reporting via PWRFAIL. Use Value: 125°C rating ensures operation near engine bay; 32-pin QFN fits constrained space behind dashboard bezel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65910A3RSLR | Higher integration: includes RTC, GPIOs, and I²C interface; 3.3V/1.8V/1.2V fixed outputs; no Vdd_alive LDO. | Requires microcontroller host for configuration; better suited for software-defined power sequencing. | Choose when system needs programmable sequencing and telemetry - not for standalone hardware-controlled designs. |
| MAX20029ATGB/V+T | Automotive-qualified triple buck (2.5A/1.5A/1.5A); integrated watchdog and reset generator; 1.0V Vdd_alive included. | Higher current capability but larger 40-pin TQFN; lacks PFM mode - higher light-load IQ (250µA vs 85µA). | Prefer for high-power ADAS ECUs where peak current >1.6A is required and board space permits larger package. |
Compared with TPS650250QRHBRQ1, TPS65910A3RSLR adds digital configurability at the cost of increased BOM complexity and firmware dependency, while MAX20029ATGB/V+T trades ultra-low quiescent current for higher output capability and integrated safety features - making TPS650250QRHBRQ1 optimal for cost-sensitive, hardware-sequenced automotive modules.
Availability
TPS650250QRHBRQ1 is available at Aetrix Electronics and suitable for automotive infotainment head units, ADAS camera ECUs, and telematics control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS650250QRHBRQ1 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 qualification expertise and AEC-Q100-compliant manufacturing.
The TPS650250-Q1 product line was designed specifically for single-cell Li-ion–powered automotive electronics, delivering integrated, space-efficient power solutions for infotainment, telematics, and driver-assistance systems operating from –40°C to 125°C.
FAQ
What is the maximum output current supported by each DC-DC converter in the TPS650250QRHBRQ1?
The TPS650250QRHBRQ1 supports 1.6A on VDCDC1 (I/O rail), 0.8A on VDCDC2 (memory rail), and 0.8A on VDCDC3 (core rail). These values are validated across the full –40°C to 125°C operating range with appropriate thermal design and 2.2µH inductors. Derating applies above 85°C ambient per TI's RθJA = 35°C/W specification.
Does the TPS650250QRHBRQ1 support dynamic voltage scaling for the processor core rail?
Yes, the TPS650250QRHBRQ1 supports real-time dynamic voltage scaling on VDCDC3 via the DEFDCDC3 pin, which accepts an external resistor divider. Unlike DEFDCDC1/DEFDCDC2, DEFDCDC3 has no logic-selectable defaults and requires a continuously adjustable divider - enabling seamless voltage transitions during CPU frequency changes without firmware overhead.
How does the PWRFAIL function operate in the TPS650250QRHBRQ1?
The TPS650250QRHBRQ1 monitors battery voltage via the PWRFAIL_SNS pin using an internal 1.0V reference comparator. When input falls below 1.0V ±2%, the open-drain PWRFAIL output pulls low after 10ms propagation delay. Hysteresis of 50mV prevents chatter during brown-out conditions, allowing controlled system shutdown before critical undervoltage events.
What is the purpose of the Vdd_alive LDO in the TPS650250QRHBRQ1?
The Vdd_alive LDO in the TPS650250QRHBRQ1 delivers a fixed 1.0V ±1% output at up to 30mA to maintain power for always-on circuitry such as real-time clocks, wake-up interrupt controllers, and security boot ROM - even when main DC-DC converters are disabled. Its dedicated EN_Vdd_alive pin allows independent control during deep-sleep modes.
Can the TPS650250QRHBRQ1 be used outside automotive applications?
Yes, the TPS650250QRHBRQ1 is fully functional in industrial and medical applications requiring robust, wide-temperature PMICs. While AEC-Q100 qualified and optimized for automotive Li-ion systems, its 1.5V–6.5V input range, 125°C rating, and low-quiescent-current PFM mode make it suitable for portable test equipment, ruggedized tablets, and battery-backed edge AI nodes - provided automotive-specific features like PWRFAIL are leveraged or ignored.
TPS650250QRHBRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Power Management
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Fault Protection:
- Over Temperature
- Interface:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TPS650250QRHBRQ1 FAQ
1.How can I place an order for TPS650250QRHBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS650250QRHBRQ1 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 TPS650250QRHBRQ1 reliable?
The price and inventory of TPS650250QRHBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS650250QRHBRQ1 is usually 5 days.
3.What payment methods are accepted for TPS650250QRHBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS650250QRHBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS650250QRHBRQ1?
TPS650250QRHBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS650250QRHBRQ1 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 TPS650250QRHBRQ1?
For technical support, including TPS650250QRHBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS650250QRHBRQ1 requirements.
6.How does Aetrix verify that TPS650250QRHBRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS650250QRHBRQ1 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 TPS650250QRHBRQ1 meets industry standards.
7.What is the process for return or replacement of TPS650250QRHBRQ1?
All TPS650250QRHBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS650250QRHBRQ1, 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 TPS650250QRHBRQ1 part is unused and in its original packaging.
Return procedure for TPS650250QRHBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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