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Texas Instruments TPS658621CZQZT
- Part No.:
- TPS658621CZQZT
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 120-VFBGA
- Datasheet:
-
TPS658621CZQZT.pdf
- Description:
- IC LI-ION BATT/PWR MGMT 120BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,295
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Product details
Overview
TPS658621CZQZT from Texas Instruments is an advanced power management unit (PMU) integrating three step-down converters (up to 2.0A on SM1, 1.5A on SM0/SM2), eleven programmable LDOs, an 11-channel ADC, dual RGB LED drivers, and a constant-current WLED driver with 26.5V/25mA capability - all controlled via I²C interface for handheld devices including netbooks and portable media players.
For engineers reviewing the TPS658621CZQZT datasheet, TPS658621CZQZT pinout, TPS658621CZQZT application, or TPS658621CZQZT equivalent, key selection considerations include its 120-pin MICROSTAR JUNIOR BGA package, -40°C to +85°C operating range, integrated power-good monitoring, software reset, automatic power-saving mode, and display support functions including four programmable PWM outputs.
Technical Context
The TPS658621CZQZT implements a multi-rail PMU architecture with independent control of three buck converters and eleven LDOs, each configurable via I²C registers. Its system management includes dual-input power path control, USB current limiting, and hardware reboot functionality.
Display support is implemented through four programmable PWM generators (frequency/duty cycle adjustable), dual RGB LED drivers, and a dedicated constant-current WLED driver supporting up to 26.5V at 25mA with programmable brightness and over-voltage protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | Up to 18V max input with integrated over-voltage protection - enables robust operation in battery-powered systems with variable input sources. |
| Buck Converter Outputs | 3 programmable step-down converters: SM0/SM2 up to 1.5A, SM1 up to 2.0A - supports core logic, memory, and I/O rail sequencing. |
| LDO Count & Range | 11 programmable LDOs: 7 fixed at 1.25V–3.3V, 2 factory-configurable (0.725V–1.5V or 1.25V–2.586V), 1 always-on (1.25V–3.3V), 1 at 1.70V–2.475V - provides flexible low-noise biasing for analog and digital subsystems. |
| ADC Channels | 11-channel ADC with single-conversion, peak-detection, and averaging modes - enables real-time battery voltage, temperature, and system monitoring. |
| WLED Driver | Constant-current driver supporting up to 26.5V at 25mA with programmable current level and brightness control - directly drives backlight LEDs without external components. |
| Interface | I²C-compatible serial interface with interrupt controller and maskable interrupts - allows host processor to configure, monitor, and respond to fault conditions in real time. |
Pinout & Package
TPS658621CZQZT is housed in a 120-ball MICROSTAR JUNIOR BGA package (ZQZ drawing), 6.0 mm × 6.0 mm, 0.5 mm pitch, RoHS-compliant with SnAgCu finish, MSL Level-3 (260°C, 168 hr).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main Input Supply | Accepts up to 18V input; feeds internal buck converters and LDOs - primary power entry point with over-voltage protection. |
| SM0_OUT / SM1_OUT / SM2_OUT | Buck Converter Outputs | Deliver regulated DC outputs (SM1 up to 2.0A, SM0/SM2 up to 1.5A) - used for CPU core, memory, and peripheral rails. |
| LDOx_OUT (x=1–11) | LDO Output Terminals | Provide low-noise, individually programmable voltages for analog sensors, RF sections, or I/O interfaces - decoupled per rail for noise isolation. |
| WLED_ANODE / WLED_CATHODE | WLED Driver Interface | Connect to white LED string anode/cathode; supports constant-current drive up to 26.5V/25mA - enables direct backlight control without external FETs. |
| SCL / SDA | I²C Interface | Serial clock and data lines for register configuration, status readback, and interrupt handling - enables full host-based power policy control. |
| INT_N | Interrupt Output | Active-low open-drain signal indicating fault, power-good loss, or ADC conversion completion - triggers host processor response without polling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power-Good Monitoring | Real-time status reporting for all 14 output rails (3 bucks + 11 LDOs) - eliminates need for external supervisors and simplifies power sequencing validation. |
| Software-Controlled PWM Mode | Enables forced-PWM or auto-skip mode per buck converter via I²C - balances efficiency vs. EMI requirements across load conditions. |
| Dual Input Power Path | Manages seamless transition between AC adapter and battery inputs - ensures uninterrupted system operation during source switching. |
| Programmable PWM Outputs | Four independent PWM generators with adjustable frequency and duty cycle - drives RGB LEDs and backlight dimming with precise timing control. |
| Host-Controlled Fault Handling | Internal registers store complete fault status (OV, UV, thermal, short-circuit); accessible via I²C - enables diagnostic logging and adaptive recovery without hardware redesign. |
Applications
| Netbook Power Management | Portable Navigation Device (PND) |
|---|---|
Use Scenario: Dual-input (AC/battery) power management with dynamic rail scaling for CPU, GPU, and display subsystems. IC Role / Device Role / Timing Role: Central PMU coordinating buck/LDO sequencing, battery charging, and display backlight control via I²C. Use Value: Reduces board area by consolidating 14 regulated supplies and eliminating discrete supervisors, ADCs, and LED drivers. | Use Scenario: Compact GPS-enabled device requiring low-quiescent-power always-on rail, GPS RF bias, and high-brightness LCD backlight. IC Role / Device Role / Timing Role: Provides 1 always-on LDO (1.25V–3.3V), dedicated RF LDO (1.70V–2.475V), and constant-current WLED driver (26.5V/25mA). Use Value: Enables >10-hour battery life with programmable power-saving modes and precise backlight current regulation. |
| Portable Media Player (PMP) | Handheld Industrial Scanner |
Use Scenario: Audio/video playback with simultaneous SD card, touchscreen, and OLED display operation under varying battery voltage. IC Role / Device Role / Timing Role: Supplies clean, sequenced rails to codec, memory, and display ICs while managing USB current limits and thermal events. Use Value: Prevents audio dropout and display flicker via independent LDO noise isolation and real-time ADC-monitored thermal throttling. | Use Scenario: Ruggedized barcode scanner needing reliable boot-up, battery fuel gauging, and flash illumination control. IC Role / Device Role / Timing Role: Delivers stable 3.3V I/O rail, 1.8V sensor rail, and programmable PWM for strobe LED timing with integrated ADC-based battery voltage/temperature sensing. Use Value: Eliminates external fuel gauge IC and discrete LED driver, reducing BOM count and improving field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS658621CZGUT | Same die, 169-ball MICROSTAR BGA (ZGU), higher pin count, identical feature set and register map. | Requires PCB redesign due to different package size (8.0 mm × 8.0 mm vs. 6.0 mm × 6.0 mm) and ball layout. | Select when higher routing density is acceptable and legacy ZGU footprint is already in use. |
| TPS658621CZQZR | Identical die and ZQZ package; differs only in tape-and-reel quantity (2500 pcs vs. TBD for ZQZT) and marketing status (ACTIVE vs. OBSOLETE). | Functionally interchangeable in design; same electrical behavior, thermal profile, and I²C command set. | Preferred for new designs where long-term supply continuity is required - ZQZT is obsolete and no longer recommended. |
Compared with TPS658621CZQZT, the ZQZR offers guaranteed availability and identical performance in the same 120-ball ZQZ package, while ZGUT provides expanded I/O routing headroom at the cost of larger footprint and higher assembly complexity.
Availability
TPS658621CZQZT is available at Aetrix Electronics and suitable for netbook power management, portable navigation devices, and handheld industrial scanners requiring stable component supply despite its obsolete status - limited remaining stock is traceable and fully tested.
Supply support for TPS658621CZQZT 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, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS658621C product line was designed specifically for handheld computing platforms requiring highly integrated, I²C-configurable power management with display support - targeting netbooks, PMPs, and portable navigation devices launched circa 2010.
FAQ
What is the operating temperature range for the TPS658621CZQZT?
The TPS658621CZQZT is specified for operation from –40°C to +85°C ambient temperature. This range is validated per TI's production test flow and aligns with industrial-grade requirements for portable electronics. The device includes thermal shutdown protection that activates above 125°C junction temperature. All electrical parameters in the datasheet SLVSAJ2 are guaranteed within this ambient range.
Does the TPS658621CZQZT support hardware power-on reset?
Yes, the TPS658621CZQZT supports hardware on/off and reboot control via dedicated pins (e.g., ONOFF_N, RESET_N). These signals allow external push-button or system-level controllers to initiate cold start, graceful shutdown, or forced reset independent of the I²C interface. The internal reset function is also accessible via software register write, enabling host-driven recovery sequences.
Can the TPS658621CZQZT be used without I²C configuration?
No - the TPS658621CZQZT requires I²C initialization to enable output rails. Default state after power-up is all regulators disabled. Configuration of buck/LDO voltages, PWM settings, ADC modes, and interrupt masks must be performed via I²C before functional operation. There is no factory-programmed default configuration stored in nonvolatile memory.
What is the maximum output current capability of the SM1 buck converter in the TPS658621CZQZT?
The SM1 buck converter in the TPS658621CZQZT delivers up to 2.0A continuous output current under typical thermal conditions (θJA ≈ 45°C/W, 2-layer board). Peak current capability is limited by internal current-limit circuitry and thermal foldback. Derating is required above 60°C ambient; full 2.0A is guaranteed only up to 70°C junction temperature per datasheet SLVSAJ2 Section 6.5.
Is the TPS658621CZQZT pin-compatible with other members of the TPS658621 family?
No - the TPS658621CZQZT (120-ball ZQZ) is not pin-compatible with TPS658621CZGUT (169-ball ZGU) due to differing ball counts, pitch, and layout. However, it is functionally and register-compatible with TPS658621CZQZR, sharing identical pin mapping, electrical characteristics, and I²C command structure - only packaging and packaging-related markings differ.
TPS658621CZQZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 120-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Battery Management, Display (LED Drivers), Handheld/Mobile Devices, Power Supply
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 120-BGA Microstar Junior (6x6)
TPS658621CZQZT FAQ
1.How can I place an order for TPS658621CZQZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS658621CZQZT 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 TPS658621CZQZT reliable?
The price and inventory of TPS658621CZQZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS658621CZQZT is usually 5 days.
3.What payment methods are accepted for TPS658621CZQZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS658621CZQZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS658621CZQZT?
TPS658621CZQZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS658621CZQZT 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 TPS658621CZQZT?
For technical support, including TPS658621CZQZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS658621CZQZT requirements.
6.How does Aetrix verify that TPS658621CZQZT is sourced from the original manufacturer or authorized distributors?
All TPS658621CZQZT 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 TPS658621CZQZT meets industry standards.
7.What is the process for return or replacement of TPS658621CZQZT?
All TPS658621CZQZT units undergo pre-shipment inspection (PSI). If there is an issue with TPS658621CZQZT, 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 TPS658621CZQZT part is unused and in its original packaging.
Return procedure for TPS658621CZQZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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