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Texas Instruments TPS658621AZGUR-1
- Part No.:
- TPS658621AZGUR-1
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- -
- Datasheet:
-
TPS658621AZGUR-1.pdf
- Description:
- IC REGULATOR CONV SMD
- Quantity:
- Payment:
- Shipping:
Inventory:4,088
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Product details
Overview
TPS658621AZGUR-1 from Texas Instruments is an advanced power management unit (PMU) integrating battery charging, three step-down converters (max 1.2A each), eleven programmable LDOs, dual RGB LED drivers, constant-current WLED driver (26.5V/25mA), and 11-channel ADC for handheld devices. It supports dual-input power path, USB current limiting, thermal foldback, and I²C-controlled system management.
For engineers reviewing the TPS658621AZGUR-1 datasheet, TPS658621AZGUR-1 pinout, TPS658621AZGUR-1 application, or TPS658621AZGUR-1 equivalent, key selection criteria include integrated Li-ion charge management with dynamic power control, programmable output voltages across multiple LDOs and buck regulators, and display support functions including PWM-controlled RGB/WLED drivers.
Technical Context
The TPS658621AZGUR-1 implements a dual-input power path architecture that prioritizes USB or adapter input while managing battery charge current up to 1A with programmable voltage/current limits and thermal foldback. Its I²C interface enables full register access for configuration, fault monitoring, and host-controlled sequencing.
It integrates three synchronous step-down converters operating in forced PWM or automatic power-saving mode, eleven LDOs with factory-configurable output ranges (including one always-on rail), and a 11-channel ADC supporting single-conversion, peak-detection, and averaging modes - all coordinated via shared status registers and maskable interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery Charger | Single-cell Li-ion/Li-Pol with 1A max charge current, programmable adapter/USB charge profiles, and thermal foldback protection |
| Step-Down Converters | 3 × synchronous buck regulators, each delivering up to 1.2A with programmable output voltage and forced-PWM/auto-PSM operation |
| LDOs | 11 programmable LDOs: 7 fixed at 1.25–3.3V, 2 configurable at 0.725–1.5V or 1.25–2.586V, 1 always-on (1.25–3.3V), 1 at 1.70–2.475V |
| Display Drivers | Dual RGB LED drivers + constant-current WLED driver (26.5V max, 25mA), with programmable brightness and PWM frequency/duty cycle |
| ADC | 11-channel SAR ADC with three operating modes: single conversion, peak detection, and averaging |
| Interface | I²C-compatible serial interface (standard/fast mode) for register read/write, interrupt masking, and host-triggered ADC/converter control |
Pinout & Package
This device uses a 169-pin BGA package (MICROSTAR ZGU, 6mm × 6mm, 0.4mm pitch). Pinout information is defined in TI's official TPS658621A datasheet (SLVSAK3A), Section 6 "Pin Assignments and Functions".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1/VIN2 | Input Power Rails | Dual-input power path: VIN1 for adapter, VIN2 for USB; internal OR-ing and priority logic manage source selection and current limiting |
| VBAT | Battery Connection | Direct connection to single-cell Li-ion/Li-Pol battery; supports charge termination, safety timers, and battery presence detection |
| SCL/SDA | I²C Interface | Standard bidirectional I²C bus interface for configuration, status polling, interrupt handling, and host-initiated ADC/converter control |
| INT | Interrupt Output | Open-drain active-low interrupt signal indicating fault conditions (OV, UV, OT, charger timeout) or status changes across all rails and peripherals |
| ENx / LDOx_OUT | Enable & Output | Individual enable pins for select LDOs; outputs deliver regulated voltage per programmed register settings and load requirements |
Key Features
| Feature | Design Value |
|---|---|
| Dual Input Power Path Management | Enables seamless transition between USB and wall adapter inputs while dynamically allocating current to system load and battery charge without host intervention |
| Programmable Step-Down Converters | Three independent buck regulators support dynamic voltage scaling for processors and peripherals, reducing power loss during low-load states via auto-PSM mode |
| Integrated Display Support | RGB LED drivers and constant-current WLED driver eliminate need for external display backlight ICs, simplifying layout and reducing BOM count for portable media players and smartphones |
| 11-Channel ADC with Multiple Modes | Provides real-time system monitoring of battery voltage, temperature, and supply rails using selectable conversion modes-critical for adaptive thermal and power management |
| Hardware On/Off and Reboot Control | Dedicated power-button interface with debounced input, software reset capability, and hardware-initiated reboot sequence ensures robust system-level power sequencing |
Applications
| Smartphones | Portable Navigation Devices |
|---|---|
Use Scenario: Compact mobile phone requiring simultaneous CPU core voltage scaling, camera sensor biasing, and high-brightness display backlighting. IC Role / Device Role: Central PMU managing battery charging, multi-rail power delivery, RGB/WLED backlight control, and system health monitoring. Use Value: Reduces external component count by integrating 3 buck converters, 11 LDOs, dual RGB drivers, and WLED driver - enabling smaller PCB area and lower assembly cost. | Use Scenario: GPS-enabled handheld navigation unit operating from USB or AC adapter with extended battery runtime. IC Role / Device Role: Power subsystem controller providing regulated voltages for GPS baseband, RF front-end, touchscreen controller, and LCD bias supplies. Use Value: Dual-input power path and thermal foldback ensure safe, uninterrupted operation during prolonged charging and high-temperature outdoor use. |
| Portable Media Players | Tablet Computers (Entry-Level) |
Use Scenario: High-resolution audio/video playback device needing low-noise analog supplies and precise backlight dimming. IC Role / Device Role: Integrated power and display manager delivering clean LDO outputs for audio codecs and PWM-controlled WLED backlight with 26.5V compliance. Use Value: Built-in 11-channel ADC enables real-time battery fuel gauging and thermal margin tracking, improving runtime estimation accuracy. | Use Scenario: 7-inch tablet running Android with multi-core application processor and capacitive touch interface. IC Role / Device Role: Primary PMU supplying core, I/O, memory, and peripheral rails while coordinating power-up/down sequencing via I²C commands. Use Value: Hardware on/off control and maskable interrupts allow deterministic boot and shutdown behavior, meeting platform power-state transition requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65910A3ZQWR | 10-channel LDO, 3 buck converters (1.5A), integrated RTC, no WLED driver; different I²C address and register map | Targets higher-performance tablets with RTC dependency; lacks constant-current WLED support for display backlighting | Choose when RTC integration and higher buck current are required, but display driver functionality is handled externally |
| MAX8649ETE+T | 3 buck converters (1.2A), 4 LDOs, no battery charger, no display drivers, no ADC; uses I²C with simplified register set | Suitable for non-battery-powered embedded systems or systems with separate charger IC; no system-level monitoring capability | Choose when only multi-rail DC/DC regulation is needed and battery management/display functions are implemented elsewhere |
Compared with TPS658621AZGUR-1, TPS65910A3ZQWR offers higher buck current and RTC but omits WLED driving, while MAX8649ETE+T provides basic regulation only - making TPS658621AZGUR-1 uniquely suited for battery-powered handhelds requiring full-featured, integrated power and display control.
Availability
TPS658621AZGUR-1 is available at Aetrix Electronics and suitable for smartphones, portable navigation devices, portable media players, and entry-level tablets requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS658621AZGUR-1 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 company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and digital signal processing technologies for industrial, automotive, consumer, and communications markets.
The TPS658621A product line was developed specifically for handheld and portable electronics, integrating battery charging, multi-rail power conversion, system monitoring, and display support into a single compact BGA package to reduce design complexity and board space.
FAQ
What is the maximum input voltage tolerance for TPS658621AZGUR-1?
The TPS658621AZGUR-1 features over-voltage protection rated at 18V maximum on its VIN1/VIN2 inputs. This protects internal circuitry during transient surges or incorrect adapter connection. The device automatically disables input paths above this threshold while maintaining battery-powered operation if VBAT is present. This specification is confirmed in Section 7.3 of the SLVSAK3A datasheet and applies directly to the TPS658621AZGUR-1 variant.
Does TPS658621AZGUR-1 support USB enumeration and current negotiation?
Yes, the TPS658621AZGUR-1 supports USB current limiting through dedicated hardware control and I²C-programmable thresholds. It does not perform USB enumeration itself but interfaces with host controllers to enforce USB 2.0 standard current limits (e.g., 100mA/500mA) via its dual-input power path logic. This function is documented in Section 1.1 under "USB Current Limiting" and verified in the TPS658621AZGUR-1's functional description.
Can TPS658621AZGUR-1 drive both RGB LEDs and WLEDs simultaneously?
Yes, the TPS658621AZGUR-1 integrates four PWM outputs for RGB LED control plus a dedicated constant-current WLED driver capable of 26.5V at 25mA. These operate independently: RGB drivers support programmable frequency/duty cycle for color mixing, while the WLED channel provides adjustable current for LCD backlighting. This dual capability is explicitly stated in the "DISPLAY SUPPORT FUNCTIONS" section of the SLVSAK3A datasheet for TPS658621AZGUR-1.
What is the thermal foldback behavior of TPS658621AZGUR-1 during charging?
Under elevated temperature conditions, the TPS658621AZGUR-1 reduces charge current progressively to maintain safe junction temperature - a feature called thermal foldback. When die temperature exceeds ~125°C, the charger throttles current until thermal equilibrium is restored. This behavior is enabled by internal thermal sensing and is active regardless of input source (USB or adapter), as specified in the "BATTERY CHARGER" section of the TPS658621AZGUR-1 datasheet.
Is TPS658621AZGUR-1 pin-compatible with earlier TPS658621 variants?
No, TPS658621AZGUR-1 is not pin-compatible with prior TPS658621 versions such as TPS658621ZGUR due to differences in internal register mapping, power sequencing behavior, and minor pin function reassignments. While both share the same MICROSTAR ZGU 169-pin BGA package outline, electrical pin definitions and initialization requirements differ - requiring schematic and firmware validation before substitution. This distinction is noted in TI's revision history for SLVSAK3A.
TPS658621AZGUR-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
TPS658621AZGUR-1 FAQ
1.How can I place an order for TPS658621AZGUR-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS658621AZGUR-1 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 TPS658621AZGUR-1 reliable?
The price and inventory of TPS658621AZGUR-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS658621AZGUR-1 is usually 5 days.
3.What payment methods are accepted for TPS658621AZGUR-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS658621AZGUR-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS658621AZGUR-1?
TPS658621AZGUR-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS658621AZGUR-1 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 TPS658621AZGUR-1?
For technical support, including TPS658621AZGUR-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS658621AZGUR-1 requirements.
6.How does Aetrix verify that TPS658621AZGUR-1 is sourced from the original manufacturer or authorized distributors?
All TPS658621AZGUR-1 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 TPS658621AZGUR-1 meets industry standards.
7.What is the process for return or replacement of TPS658621AZGUR-1?
All TPS658621AZGUR-1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS658621AZGUR-1, 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 TPS658621AZGUR-1 part is unused and in its original packaging.
Return procedure for TPS658621AZGUR-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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