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Texas Instruments TPS650241QRHBRQ1
- Part No.:
- TPS650241QRHBRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TPS650241QRHBRQ1.pdf
- Description:
- IC BAT PWR MGMT LI-ION 1C 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,928
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Product details
Overview
TPS650241QRHBRQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade power management IC (PMIC) integrating three synchronous step-down converters (1.6-A VDCDC1, 1.0-A VDCDC2, 0.8-A VDCDC3), two 200-mA adjustable LDOs, and a 30-mA always-on Vdd_alive LDO - all in a single 32-pin QFN package. It delivers precise core, memory, and I/O rail voltages for Li-ion–powered infotainment and telematics systems.
For engineers reviewing the TPS650241QRHBRQ1 datasheet, TPS650241QRHBRQ1 pinout, TPS650241QRHBRQ1 application, or TPS650241QRHBRQ1 equivalent, key selection criteria include its dual-mode PFM/PWM operation, DEFDCDC3 dynamic voltage scaling (0.9 V / 1.375 V), 2.25-MHz switching frequency, 85-μA quiescent current in full-standby mode, and automotive temperature range (–40°C to 125°C).
Technical Context
The TPS650241QRHBRQ1 implements three independent synchronous buck regulators with integrated high-side and low-side MOSFETs, each featuring input voltage feed-forward control for fast transient response and stable regulation across 2.5–6.0 V input. VDCDC3 supports real-time voltage scaling via the DEFDCDC3 pin, enabling dynamic core voltage adjustment without external sequencing logic.
All converters operate in automatic PFM mode at light loads and transition seamlessly to fixed-frequency PWM (2.25 MHz ±15%) under heavier loads. The device integrates dedicated enable pins per converter (EN_DCDC1/2/3), separate LDO enable (EN_LDO), and thermal shutdown (160°C) with 20°C hysteresis - critical for automotive under-hood reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDCDC1 Output | Fixed 2.80 V or 3.3 V (selectable via DEFDCDC1); ±2% accuracy over load/temperature; supports 1.6-A system I/O rail |
| VDCDC2 Output | Fixed 1.8 V or 2.5 V (selectable via DEFDCDC2); ±2% accuracy; powers 1.0-A memory subsystem |
| VDCDC3 Output | 0.9 V or 1.375 V (selectable via DEFDCDC3); ±2% accuracy; supplies 0.8-A processor core with dynamic voltage scaling |
| Switching Frequency | 2.25 MHz nominal (1.95–2.55 MHz range); enables use of small 1.5–2.2 μH inductors and 10–22 μF ceramic output capacitors |
| Quiescent Current | 85 μA typical (all DC-DCs + LDOs enabled, zero load, PFM mode); ensures ultra-low standby power in always-on automotive modules |
| Operating Temperature | –40°C to +125°C junction; qualified per AEC-Q100 Grade 1; validated for under-dash and center-stack automotive environments |
| Package | 32-pin QFN (RHB), 5 mm × 5 mm, 0.5-mm pitch; exposed thermal pad tied to AGND for enhanced thermal dissipation (RθJA = 35°C/W) |
Pinout & Package
TPS650241QRHBRQ1 uses a 32-pin QFN (RHB) package with 0.5-mm pitch and exposed thermal pad. All analog ground pins (AGND1, AGND2) are internally connected; the PowerPad must be soldered to PCB analog ground for thermal and noise performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDCDC3 (Pin 1) | Feedback input | Connects directly to VDCDC3 output for closed-loop regulation; sets 0.9 V or 1.375 V via DEFDCDC3 logic level |
| PGND3 (Pin 2) | Power ground | Low-impedance return path for VDCDC3 switch node; must be routed separately from AGND to minimize noise coupling |
| L3 (Pin 3) | Switch node | Connects to VDCDC3 inductor; requires tight layout with minimal trace length to reduce EMI and switching losses |
| VINDCDC3 (Pin 4) | Input supply | Shared 2.5–6.0 V input with VINDCDC1/VINDCDC2/VCC; must be decoupled with ≥10 μF ceramic capacitor |
| DEFDCDC3 (Pin 32) | Voltage select control | Logic-level input: LOW = 0.9 V, HIGH = 1.375 V; enables dynamic core voltage scaling during processor operation |
Key Features
| Feature | Design Value |
|---|---|
| Triple synchronous buck architecture | Enables compact, high-efficiency multi-rail power delivery without external MOSFETs or compensation components |
| Dynamic VDD scaling on VDCDC3 | Allows real-time core voltage adjustment (0.9 V ↔ 1.375 V) via DEFDCDC3 pin - reduces active power in ARM-based processors |
| Auto PFM/PWM mode transition | Maintains >90% efficiency from 10 mA to full load; eliminates need for manual mode control or external circuitry |
| Dedicated enable pins per regulator | Supports flexible power sequencing: EN_DCDC1/2/3, EN_LDO, and EN_Vdd_alive allow independent turn-on/off timing |
| Integrated 30-mA Vdd_alive LDO | Provides always-on 1.2-V rail for RTC, wake-up logic, or CAN transceiver standby - independent of main DC-DC states |
Applications
| Infotainment Head Unit | Telematics Control Unit (TCU) |
|---|---|
Use Scenario: Central display and audio processing unit in automotive dashboard with touchscreen, Bluetooth, and navigation. IC Role / Device Role / Timing Role: PMIC supplies 3.3-V I/O, 1.8-V DDR memory, and dynamically scaled 0.9/1.375-V ARM Cortex-A8 core voltage. Use Value: Single-chip solution reduces BOM count by 7+ discrete regulators; PFM mode extends battery runtime during display-off states. |
Use Scenario: Cellular-connected vehicle module handling GPS, LTE, and OTA updates in parked or ignition-off states. IC Role / Device Role / Timing Role: Powers modem baseband, GNSS receiver, and secure MCU; Vdd_alive maintains CAN bus wake capability. Use Value: 85-μA quiescent current meets ISO 16750-2 parasitic drain limits; thermal shutdown protects against under-hood ambient spikes. |
| Digital Instrument Cluster | ADAS Camera Module |
Use Scenario: High-resolution TFT cluster with graphics acceleration and driver monitoring sensors. IC Role / Device Role / Timing Role: Delivers sequenced 3.3-V display interface, 2.5-V image sensor I/O, and 1.375-V GPU core voltage. Use Value: 2.25-MHz switching avoids AM radio band interference; soft-start (750 μs) prevents inrush-induced display flicker. |
Use Scenario: Front-facing camera for lane departure warning and automatic emergency braking. IC Role / Device Role / Timing Role: Supplies 1.8-V image sensor, 1.2-V Vdd_alive for instant wake, and 3.3-V serializer interface. Use Value: Independent EN_DCDC3 control enables rapid core voltage ramp-up upon motion detection; LDO1/LDO2 support external sensor biasing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS650243QRHBRQ1 | VDCDC3 outputs 1.0 V / 1.2 V (not 0.9 V / 1.375 V); same package, pinout, and feature set | Suitable for processors requiring tighter core voltage margins (e.g., TI OMAP-L138) | Select when target SoC specifies 1.0/1.2-V core rails and dynamic scaling remains required |
| TPS650244IRHBRQ1 | Industrial temp grade (–40°C to 85°C); VDCDC3 outputs 1.55 V / 1.6 V; lower max junction temp rating | Not AEC-Q100 qualified; intended for non-automotive portable electronics | Use only in commercial/industrial designs where automotive qualification is not mandated |
Compared with TPS650243QRHBRQ1 and TPS650244IRHBRQ1, the TPS650241QRHBRQ1 uniquely supports 0.9-V low-power core operation and full AEC-Q100 Grade 1 compliance - making it the sole choice for automotive infotainment requiring deep-sleep power optimization and under-hood thermal resilience.
Availability
TPS650241QRHBRQ1 is available at Aetrix Electronics and suitable for automotive infotainment head units, telematics control units, and digital instrument clusters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS650241QRHBRQ1 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 power management technologies, with decades of automotive qualification expertise.
The TPS65024x product line was designed specifically for single-cell Li-ion–powered automotive electronics, delivering tightly regulated, dynamically scalable power rails with minimal external components and robust thermal performance.
FAQ
What is the default VDCDC3 output voltage configuration for TPS650241QRHBRQ1?
The TPS650241QRHBRQ1 defaults VDCDC3 to 0.9 V when DEFDCDC3 is pulled LOW (to GND) and to 1.375 V when DEFDCDC3 is pulled HIGH (to VCC). Unlike DEFDCDC1/2, DEFDCDC3 does not support resistor-divider programming - only logic-level selection is valid for this pin on the TPS650241QRHBRQ1.
Does TPS650241QRHBRQ1 support dynamic voltage scaling during processor operation?
Yes, the TPS650241QRHBRQ1 supports real-time dynamic voltage scaling on VDCDC3. Changing the logic level on DEFDCDC3 while the device is powered allows seamless transition between 0.9 V and 1.375 V core output voltages - enabling power-aware software algorithms to optimize performance versus energy consumption without hardware reset.
What is the maximum output current capability of each DC-DC converter in TPS650241QRHBRQ1?
The TPS650241QRHBRQ1 provides 1.6-A output from VDCDC1 (I/O rail), 1.0-A from VDCDC2 (memory rail), and 0.8-A from VDCDC3 (core rail). These ratings are specified at nominal input voltage (3.6 V) and full thermal derating up to 125°C junction temperature, with internal current limiting protecting against overload conditions.
How does the TPS650241QRHBRQ1 manage power efficiency across varying load conditions?
The TPS650241QRHBRQ1 automatically switches between PFM (pulse-frequency modulation) at light loads and fixed-frequency PWM (2.25 MHz) at medium-to-heavy loads. This hybrid control preserves >90% efficiency from 10 mA to full rated current, eliminating manual mode selection and reducing design complexity compared to externally controlled PMICs.
Is TPS650241QRHBRQ1 pin-compatible with other members of the TPS65024x family?
Yes, the TPS650241QRHBRQ1 shares identical pinout, package (32-pin QFN RHB), and electrical interface with TPS650243QRHBRQ1 and TPS650244IRHBRQ1. Functional differences - such as VDCDC3 voltage options and temperature grade - are implemented internally; no PCB layout changes are needed when substituting within the same package variant.
TPS650241QRHBRQ1 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, Under Voltage
- Interface:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TPS650241QRHBRQ1 FAQ
1.How can I place an order for TPS650241QRHBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS650241QRHBRQ1 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 TPS650241QRHBRQ1 reliable?
The price and inventory of TPS650241QRHBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS650241QRHBRQ1 is usually 5 days.
3.What payment methods are accepted for TPS650241QRHBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS650241QRHBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS650241QRHBRQ1?
TPS650241QRHBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS650241QRHBRQ1 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 TPS650241QRHBRQ1?
For technical support, including TPS650241QRHBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS650241QRHBRQ1 requirements.
6.How does Aetrix verify that TPS650241QRHBRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS650241QRHBRQ1 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 TPS650241QRHBRQ1 meets industry standards.
7.What is the process for return or replacement of TPS650241QRHBRQ1?
All TPS650241QRHBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS650241QRHBRQ1, 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 TPS650241QRHBRQ1 part is unused and in its original packaging.
Return procedure for TPS650241QRHBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS650241QRHBRQ1 Tags
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