Texas Instruments TPS658610AZQZT

Overview

TPS658610AZQZT from Texas Instruments is an advanced power management unit (PMU) for handheld devices, integrating battery charging, three programmable step-down converters (max 1.2A), eleven LDOs, dual RGB LED drivers, constant-current WLED driver (26.5V/25mA), and 11-channel ADC with single-conversion, peak-detection, and averaging modes. It supports smart phones and portable media players with I²C-controlled power sequencing and thermal foldback.

For engineers reviewing the TPS658610AZQZT datasheet, TPS658610AZQZT pinout, TPS658610AZQZT application, or TPS658610AZQZT equivalent, key selection considerations include its 120-pin MICROSTAR Junior BGA package, dual-input power path architecture, software reset capability, hardware on/off control, and integrated display support functions including four programmable PWM outputs.

Technical Context

The TPS658610AZQZT implements a multi-rail PMU architecture with independent enable/control of three buck converters and eleven LDOs via I²C interface; each buck supports forced PWM or automatic power-saving mode. Its 11-bit ADC provides real-time monitoring of system voltages, temperatures, and battery parameters across three operating modes.

Power path management includes dynamic input current limiting for USB and adapter sources, programmable charge current up to 1.0A, and 18V over-voltage protection. System-level features include maskable interrupt controller, external ADC triggering, and hardware reboot functionality - all coordinated through internal status registers accessible via I²C.

Key Specifications

Pinout & Package

TPS658610AZQZT is housed in a 6 mm × 6 mm, 120-ball MICROSTAR Junior BGA (ZQZ) package with 0.4 mm pitch and SNAGCU lead finish, compliant with JEDEC MSL Level-3 (260°C, 168 hr).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power management unit applications.

Compared with TPS658610AZQZT, TPS65910A1ZQZR offers expanded system supervision but requires PCB redesign, while MAX8649ETE+ reduces integration depth significantly - making TPS658610AZQZT optimal for mid-tier handhelds needing balanced integration of power, display, and telemetry.

Availability

TPS658610AZQZT is available at Aetrix Electronics and suitable for smart phones, portable navigation devices, and portable media players requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TPS658610AZQZT 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 since 1930.

The TPS658610AZQZT belongs to TI's handheld PMU product line, engineered specifically to consolidate power, battery, display, and system management functions into a single chip for space- and power-constrained mobile platforms.

FAQ

What is the maximum input voltage rating for TPS658610AZQZT?

The TPS658610AZQZT features 18V maximum over-voltage protection on its VIN1/VIN2 inputs, safeguarding internal circuitry against transient surges from adapter or automotive USB sources. This rating applies to both input paths independently and is enforced by internal clamping circuitry - not a continuous operating voltage. Continuous operation is specified up to 6.5V per the datasheet absolute maximum ratings.

Does TPS658610AZQZT support I²C fast-mode operation?

Yes, the TPS658610AZQZT supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C communication. Its SCL/SDA interface meets SMBus 2.0 electrical specifications and allows full read/write access to all configuration, status, and ADC result registers. Fast-mode operation enables rapid power-state transitions and real-time telemetry updates in responsive handheld UIs.

How many LDOs in TPS658610AZQZT can be configured below 1.0V?

Two LDOs in the TPS658610AZQZT are factory-configurable to output voltages as low as 0.725V - specifically designed for core voltage regulation of advanced application processors. These LDOs are not software-programmable in-circuit; their range is set at manufacturing and cannot be altered post-silicon. All other LDOs have minimum outputs ≥1.25V.

Can TPS658610AZQZT drive both RGB LEDs and WLEDs simultaneously?

Yes, the TPS658610AZQZT integrates dual RGB LED drivers and a separate constant-current WLED driver, enabling concurrent operation. The RGB channels support independent current control per color, while the WLED channel delivers up to 26.5V at 25mA with programmable brightness. Both subsystems share the same I²C interface but operate on independent internal timing and current references.

Is thermal foldback implemented in hardware or firmware for TPS658610AZQZT?

Thermal foldback in the TPS658610AZQZT is implemented in analog hardware - triggered by an internal die temperature sensor that directly scales charge current without host intervention. When junction temperature exceeds ~125°C, the charger automatically reduces current linearly to maintain safe operating temperature. This behavior is autonomous and does not require I²C polling or firmware action.