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Texas Instruments TPS6521907RHBR
- Part No.:
- TPS6521907RHBR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TPS6521907RHBR.pdf
- Description:
- INTEGRATED POWER MANAGEMENT (PMI
- Quantity:
- Payment:
- Shipping:
Inventory:2,926
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Product details
Overview
TPS6521907RHBR from Texas Instruments is a programmable Power Management IC (PMIC) integrating three synchronous buck converters (1×3.5A, 2×2A) and four LDOs (2×400mA, 2×300mA), designed for industrial SoCs including AM62x, AM64x, and AM243x. It supports dynamic voltage scaling, I²C-based power sequencing, EEPROM configuration, and operates across –40°C to +105°C.
For engineers reviewing the TPS6521907RHBR datasheet, TPS6521907RHBR pinout, TPS6521907RHBR application, or TPS6521907RHBR equivalent, key selection factors include its 32-pin RHB QFN package, 5V input support for DDR4 VDD_CORE = 0.85V, multi-PMIC scalability, and configurable GPIO/GPO/MFP interface for industrial HMI, PLC, and video surveillance systems.
Technical Context
The TPS6521907RHBR implements quasi-fixed-frequency PWM/low-IQ PFM operation with up to 2.3MHz switching on all three bucks, enabling compact 470nH inductors and minimal output capacitance (10µF min per rail). Its feedback architecture supports precise DC accuracy (±1.5% in PWM mode) and load transient response within ±27.5mV at 0.75V output.
Four LDOs are split into two 400mA rails (0.6–3.4V, bypass/load-switch capable for SD-card) and two 300mA rails (1.2–3.3V, load-switch configurable). All regulators are controlled via I²C (standard/fast/fast-mode+), with 2 GPOs, 1 GPIO, and 3 multi-function pins supporting sequenced power-up/down and system-level reset coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V–5.5V on VSYS and all PVIN pins; supports standard 5V industrial supply rails. |
| Buck1 Output Current | 3.5A continuous; enables high-current core rail for AM62x/AM64x VDD_CORE at 0.85V. |
| Buck2/Buck3 Output Current | 2A each; powers auxiliary SoC domains (e.g., DDR I/O, peripherals) with independent regulation. |
| LDO1/LDO2 Output | 0.6V–3.4V @ 400mA; supports SD-card voltage selection (VSEL_SD) and bypass-mode operation. |
| LDO3/LDO4 Output | 1.2V–3.3V @ 300mA; configurable as load switches for low-power subsystem control. |
| Operating Temperature | –40°C to +105°C ambient; qualified for industrial environments including HVAC and protection relays. |
| I²C Interface | Standard, fast, and fast-mode+ compatible; enables full register access for sequencing, monitoring, and fault handling. |
Pinout & Package
TPS6521907RHBR uses a 32-pin RHB QFN package (5.00mm × 5.00mm) with exposed thermal pad (PGND) for enhanced thermal dissipation in industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB_B1, FB_B2, FB_B3 | Buck feedback inputs | Connect to respective buck output filters; nominal voltages set via EEPROM; tie to GND if rail disabled. |
| LX_B1_1/LX_B1_2, LX_B2, LX_B3 | Buck switch node outputs | Drive external inductors; dual LX pins for Buck1 reduce conduction loss and EMI. |
| PVIN_B1_1/PVIN_B1_2, PVIN_B2, PVIN_B3 | Buck input power supplies | Require ≥4.7µF ceramic bypass; must not exceed VSYS by more than 200mV. |
| VLDO1–VLDO4 | LDO output rails | Each requires ≥2.2µF output capacitance; LDO1/LDO2 support SD-card voltage switching via VSEL_SD. |
| EN/PB/VSENSE | Multi-function enable/input | Configurable as ON/OFF enable, push-button monitor (600ms ON, 8s OFF), or power-fail comparator input. |
| MODE/STBY, MODE/RESET | Multi-function control pins | Enable PWM/autonomous PFM mode or trigger warm/cold reset; level- or edge-sensitive per configuration. |
| SCL, SDA | I²C interface | Support up to 1MHz (fast-mode+); logic levels referenced to external pull-up voltage (VIO). |
| GPO1, GPO2, GPIO | Programmable digital I/O | Open-drain outputs configurable in power sequences; GPIO supports multi-PMIC synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic voltage scaling | Real-time adjustment of all three buck outputs via I²C, enabling adaptive power management for AM62x/AM64x DVFS. |
| EEPROM programmability | Non-volatile memory stores default rail voltages, sequencing order, and fault thresholds-eliminates external configuration components. |
| Multi-PMIC configuration | Supports synchronized operation of ≥2 TPS65219 devices for systems requiring >14 regulated rails (e.g., multi-core industrial gateways). |
| SD-card LDO support | LDO1/LDO2 provide 0.6–3.4V at 400mA with VSEL_SD pin control, enabling seamless 1.8V/3.3V SDIO voltage switching without external logic. |
| Low-quiescent current PFM mode | 250–430µA total active current (all rails on, no load), extending runtime in battery-backed industrial controllers. |
Applications
| Industrial HMI | Programmable Logic Controller (PLC) |
|---|---|
|
Use Scenario: Touchscreen-based human-machine interface with AM64x SoC, requiring multiple voltage rails for display, MCU core, DDR, and I/O. IC Role / Device Role: Central PMIC supplying VDD_CORE (0.85V), DDR4 (1.2V), I/O (3.3V), and SD-card (1.8V/3.3V) from single 5V input. Use Value: Reduces BOM count by consolidating 7 discrete regulators; EEPROM-programmed sequencing ensures reliable boot under varying temperature conditions. |
Use Scenario: Modular PLC backplane with isolated I/O modules and real-time AM243x processor demanding stable, sequenced power. IC Role / Device Role: Primary power controller delivering 3.5A core rail, dual 2A auxiliary rails, and 4 LDOs for analog sensing, communication, and safety circuitry. Use Value: Multi-PMIC sync capability enables coordinated power-up across distributed modules; -40°C to +105°C rating ensures field reliability. |
| Video Surveillance System | Smart Energy Meter |
|
Use Scenario: Edge AI camera using AM62x SoC with ISP, neural accelerator, and dual MIPI interfaces requiring tightly regulated, low-noise supplies. IC Role / Device Role: Supplies VDD_CORE (0.85V), DDR4 (1.2V), MIPI PHY (1.8V), and sensor bias (3.3V) with <±27.5mV load transient response. Use Value: High-bandwidth buck design minimizes voltage droop during burst processing; LDO bypass mode reduces heat in space-constrained enclosures. |
Use Scenario: DIN-rail mounted smart meter with AM62x MCU, metrology ADC, RF mesh radio, and tamper-detection circuitry. IC Role / Device Role: Delivers 0.85V core, 1.2V DDR, 3.3V radio, and 1.8V metrology rail from 5V backup supply; STBY mode cuts system current to 105µA. Use Value: Ultra-low IQ in STBY extends battery life during mains outage; UVLO/OVP thresholds meet IEC 62053-21 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6521904RHBR | Same RHB package and pinout; pre-configured for VDD_CORE = 0.85V but with DDR4 timing defaults optimized for AM62B starter kit. | Targeted at AM62B evaluation hardware; lacks factory-programmed TRM alignment for AM64x/AM243x DDR4 initialization. | Select TPS6521904RHBR only when matching AM62B reference design; otherwise TPS6521907RHBR provides broader SoC compatibility. |
| TPS6521905RHBR | User-programmable version with all rails disabled at power-on; requires full I²C initialization before any output activation. | Designed for custom SoC platforms where default configurations are undefined; no factory-set VDD_CORE or DDR voltage. | Choose TPS6521905RHBR for non-TI SoCs or flexible prototyping; TPS6521907RHBR delivers validated AM62x/AM64x/AM243x power trees out-of-box. |
Compared with TPS6521904RHBR and TPS6521905RHBR, the TPS6521907RHBR offers factory-programmed support for AM62x/AM64x/AM243x DDR4 VDD_CORE = 0.85V, eliminating startup configuration overhead while maintaining full EEPROM reprogrammability for field updates.
Availability
TPS6521907RHBR is available at Aetrix Electronics and suitable for industrial HMI, PLC, and video surveillance systems requiring stable component supply, extended temperature operation, and long-term lifecycle continuity.
Supply support for TPS6521907RHBR 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 over 50 years of industrial-grade product experience.
The TPS65219 family is engineered for scalable, programmable power delivery in industrial SoC platforms-including AM62x, AM64x, and AM243x-enabling robust, temperature-hardened, and software-configurable power trees.
FAQ
What is the primary application target for the TPS6521907RHBR?
The TPS6521907RHBR is specifically configured for TI's AM62x, AM64x, and AM243x industrial processors, delivering factory-programmed 0.85V VDD_CORE for DDR4, along with sequenced 1.2V DDR, 3.3V I/O, and SD-card rails. Its EEPROM settings align with TI Technical Reference Manual (TRM) requirements, reducing bring-up time in industrial HMI and PLC designs.
Does the TPS6521907RHBR support multi-PMIC synchronization?
Yes, the TPS6521907RHBR supports synchronized operation with other TPS65219 devices via its GPIO pin, enabling coordinated power sequencing across systems requiring more than 14 regulated rails. This capability is essential for complex industrial gateways and modular PLC backplanes where rail timing must be deterministic across multiple PMICs.
How does the TPS6521907RHBR handle SD-card voltage selection?
The TPS6521907RHBR uses the VSEL_SD/VSEL_DDR pin to dynamically switch LDO1 or LDO2 between 1.8V and a register-configured output voltage, enabling compliant SDIO voltage transitions without external level shifters. This feature is implemented in hardware and requires no firmware intervention during card insertion or mode changes.
What thermal performance can be expected from the TPS6521907RHBR in a 5mm × 5mm RHB package?
In the RHB QFN package, the TPS6521907RHBR achieves a junction-to-board thermal resistance (RΘJB) of 10.9°C/W and junction-to-ambient (RΘJA) of 31.3°C/W with proper PCB layout-specifically, a solid thermal pad connected to an internal ground plane via ≥6 vias. This allows sustained 3.5A buck operation at full load within the –40°C to +105°C ambient range.
Can the TPS6521907RHBR operate with a 3.3V input instead of 5V?
Yes, the TPS6521907RHBR supports 2.5V–5.5V input across all PVIN and VSYS pins. However, its factory-programmed configuration assumes 5V VSYS for optimal DDR4 VDD_CORE (0.85V) headroom and sequencing margins. At 3.3V input, users must verify buck headroom (≥700mV for 3.5A) and may need to adjust EEPROM settings for stable low-VIN operation.
TPS6521907RHBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Processor
- Current - Supply:
- 250µA
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TPS6521907RHBR FAQ
1.How can I place an order for TPS6521907RHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6521907RHBR 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 TPS6521907RHBR reliable?
The price and inventory of TPS6521907RHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6521907RHBR is usually 5 days.
3.What payment methods are accepted for TPS6521907RHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6521907RHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6521907RHBR?
TPS6521907RHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6521907RHBR 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 TPS6521907RHBR?
For technical support, including TPS6521907RHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6521907RHBR requirements.
6.How does Aetrix verify that TPS6521907RHBR is sourced from the original manufacturer or authorized distributors?
All TPS6521907RHBR 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 TPS6521907RHBR meets industry standards.
7.What is the process for return or replacement of TPS6521907RHBR?
All TPS6521907RHBR units undergo pre-shipment inspection (PSI). If there is an issue with TPS6521907RHBR, 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 TPS6521907RHBR part is unused and in its original packaging.
Return procedure for TPS6521907RHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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