Texas Instruments TPS65180RGZR

Overview

TPS65180RGZR from Texas Instruments is a single-chip PMIC engineered for E Ink® Vizplex™ electronic paper displays, integrating two adjustable LDOs (±15 V, 120 mA), dual charge pumps (VDDH: +22 V/10 mA; VEE: –20 V/12 mA), boost and inverting buck-boost DC–DC converters, I²C-controlled VCOM driver (–0.3 V to –2.5 V, ±1.5% accuracy), and thermistor-based temperature monitoring (±1°C from 0°C to 50°C). It powers active-matrix EPD panels up to 9.7 inches in e-book readers.

For engineers reviewing the TPS65180RGZR datasheet, TPS65180RGZR pinout, TPS65180RGZR application, or TPS65180RGZR equivalent, key selection considerations include its 48-pin VQFN package, I²C programmable rail sequencing, ±50 mV VPOS–VNEG tracking tolerance, integrated 3.3-V power switch, and host-triggered temperature acquisition - all critical for low-power, high-precision EPD biasing.

Technical Context

The TPS65180RGZR implements a tightly coupled multi-rail architecture: DCDC1 (boost) generates +17 V from 3–6 V input, then CP1 boosts it to +22 V for gate drivers; DCDC2 (inverting buck-boost) generates –17 V, then CP2 inverts and boosts to –20 V. LDO1 and LDO2 regulate these rails to ±15 V with tracking enforced via internal feedback coupling.

VCOM control uses an 8-bit DAC (11-mV step) and integrated 15-mA switch, enabling precise panel backplane biasing; thermistor monitoring employs a dedicated ADC channel with external 10-kΩ NTC + 43-kΩ linearization resistor, delivering calibrated voltage output referenced to VREF (2.25 V).

Key Specifications

Pinout & Package

TPS65180RGZR is housed in a thermally enhanced 48-pin VQFN (RGZ) package (7.00 mm × 7.00 mm × 0.9 mm) with exposed PowerPAD (PBKG) electrically connected to VN_SW - must be tied to the inverting buck-boost converter's switch node for efficient thermal conduction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS65181RGZR, the TPS65180RGZR offers deterministic host-controlled temperature sampling ideal for synchronized waveform tuning, while TPS65180BRGZR shares identical functionality but carries NRND status - making TPS65180RGZR the optimal choice for new e-reader development requiring long-term supply assurance.

Availability

TPS65180RGZR is available at Aetrix Electronics and suitable for e-book reader power systems, EPD panel biasing subsystems, OMAP-based EPD controller interfaces, and EPSON S1D13522 timing controller support requiring stable component supply and long-term industrial availability.

Supply support for TPS65180RGZR 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 expertise in low-power, high-precision mixed-signal ICs.

The TPS65180RGZR belongs to TI's E Ink®-optimized PMIC product line, designed specifically to replace multi-chip bias solutions in electronic paper displays - delivering integrated gate/source/VCOM rails, thermal monitoring, and I²C configurability in a single 7×7 mm package.

FAQ

What is the primary application target for the TPS65180RGZR?

The TPS65180RGZR is purpose-built for powering E Ink® Vizplex™ electronic paper displays in portable e-readers. It integrates all necessary bias rails - ±15 V source drivers, +22 V/–20 V gate drivers, and programmable VCOM - into a single 48-pin VQFN package, eliminating the need for discrete DC–DC converters, LDOs, and charge pumps in EPD systems up to 9.7 inches.

Does the TPS65180RGZR support automatic temperature monitoring without host intervention?

No. The TPS65180RGZR requires the host processor to trigger temperature acquisition via an I²C write command; it does not autonomously sample or update temperature readings. This design enables precise synchronization between panel bias adjustment and waveform generation in e-reader firmware. For automatic 60-second updates, consider the TPS65181RGZR variant instead.

How is VCOM voltage adjusted on the TPS65180RGZR?

VCOM voltage on the TPS65180RGZR is adjusted via an 8-bit DAC controlled through the I²C interface, offering 11-mV nominal step size across a –0.3 V to –2.5 V range. The DAC output drives the VCOM buffer, and an integrated 15-mA MOSFET switch isolates the panel-side VCOM_PANEL node - enabling precise, software-tuned backplane biasing essential for grayscale stability in E Ink displays.

What are the key differences between TPS65180RGZR and TPS65180BRGZR?

The TPS65180RGZR and TPS65180BRGZR share identical electrical specifications, pinout, and functionality. The sole difference is lifecycle status: TPS65180BRGZR is marked "Not Recommended for New Design" (NRND) by Texas Instruments, indicating it is intended only for legacy design continuity. New projects should use TPS65180RGZR to ensure long-term supply and technical support.

Can the TPS65180RGZR be used with EPSON S1D13522 (ISIS) timing controllers?

Yes. The TPS65180RGZR is explicitly validated for use with the EPSON S1D13522 (ISIS) timing controller, providing matched ±15 V source driver supplies with ±50 mV tracking tolerance and compatible gate driver voltages (+22 V/–20 V). Its I²C interface allows seamless integration with ISIS register maps for coordinated power sequencing and fault reporting in commercial e-reader platforms.