Texas Instruments TPS65180RGZT

Overview

TPS65180RGZT from Texas Instruments is a single-chip PMIC engineered specifically 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), an inverting buck-boost converter (–17 V), and a boost converter (+17 V) - all powered from a 3 V to 6 V input. It delivers precise ±15-V source driver rails with ≤50 mV tracking error and supports panel sizes up to 9.7 inches in e-book readers.

For engineers reviewing the TPS65180RGZT datasheet, TPS65180RGZT pinout, TPS65180RGZT application, or TPS65180RGZT equivalent, key selection considerations include I²C-adjustable VCOM (–0.3 V to –2.5 V, ±1.5% accuracy), thermistor-based panel temperature monitoring (±1°C from 0°C to 50°C), integrated 3.3-V power switch, and open-drain PWR_GOOD fault signaling across four regulated rails.

Technical Context

The TPS65180RGZT implements a tightly coupled multi-rail architecture: DCDC1 (boost) and DCDC2 (inverting buck-boost) generate base ±17-V rails, which feed CP1 (+22 V) and CP2 (–20 V) charge pumps for gate driver supply; LDO1 and LDO2 independently regulate ±15-V source driver outputs with tracking enforced via internal feedback coupling. All rails are individually enabled/disabled via dedicated PWRx GPIOs or I²C commands.

Its digital core includes an I²C slave interface (address 0x48h), programmable power-up sequencing (PWR_SEQ registers), interrupt generation on thermal overtemp or rail faults, and host-triggered temperature acquisition from an external NTC thermistor connected to TS/AGND2. The device operates across –10°C to +85°C ambient and enters SLEEP mode when WAKEUP is pulled low.

Key Specifications

Pinout & Package

TPS65180RGZT is housed in a thermally enhanced 48-pin VQFN (RGZ) package (7.0 mm × 7.0 mm × 0.9 mm) with an exposed PowerPAD (PBKG, Pin 23) that must be soldered to the VN net for effective heat transfer. The package supports high-density PCB layouts and meets JEDEC JESD51-7 thermal test standards.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PMIC applications.

Compared with TPS65181RGZT, the TPS65180RGZT requires explicit host-triggered temperature reads and manual INT register clearing, offering tighter control over thermal sampling timing. Compared with TPS65180BRGZT, it is the current production version with full long-term availability support.

Availability

TPS65180RGZT is available at Aetrix Electronics and suitable for e-book reader design, E Ink display module integration, and industrial electronic paper signage requiring stable component supply and long-lifecycle support.

Supply support for TPS65180RGZT 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 90 years of innovation history.

The TPS6518x family was designed specifically to address the stringent voltage accuracy, sequencing, and thermal monitoring requirements of E Ink® Vizplex™ electronic paper displays in portable consumer devices.

FAQ

What is the primary application target for the TPS65180RGZT?

The TPS65180RGZT is purpose-built for powering E Ink® Vizplex™ electronic paper displays, particularly in e-book readers and digital signage. It integrates all necessary rails - ±15-V source drivers, +22-V/–20-V gate drivers, adjustable VCOM, and 3.3-V system power - from a single 3–6-V input, eliminating discrete solutions. Its tracking LDOs, charge pumps, and thermistor interface directly support Vizplex panel timing and bias requirements.

How does the TPS65180RGZT handle VCOM adjustment for E Ink panels?

The TPS65180RGZT provides an integrated VCOM driver with 8-bit digital control (0x00–0xFF), enabling precise backplane bias adjustment from –0.3 V to –2.5 V in ~11-mV steps. Accuracy is ±1.5% (±18 mV) over temperature, and the VCOM output is decoupled via VCOM and VCOM_PANEL pins. Calibration can be performed via I²C writes during production, removing reliance on external potentiometers or DACs.

Does the TPS65180RGZT support automatic temperature monitoring?

No - the TPS65180RGZT requires the host processor to trigger each temperature acquisition via an I²C write command. The measured value is stored in the TMST_VALUE register and remains static until the next host-initiated conversion. This differs from the TPS65181RGZT, which automatically updates temperature every 60 seconds without host intervention.

What is the function of the PWR_GOOD pin on the TPS65180RGZT?

The PWR_GOOD pin on the TPS65180RGZT is an open-drain output that remains low until *all four* main regulated rails - CP1 (VDDH), CP2 (VEE), LDO1 (VPOS), and LDO2 (VNEG) - are within specification and free of faults. It transitions to high-impedance (pulled up externally) only when all rails are stable, providing a reliable system-ready signal for sequenced power-up of downstream controllers or display timing ICs.

Can the TPS65180RGZT be used with EPSON S1D13521 (Broadsheet) timing controllers?

The TPS65180RGZT supports standard I²C protocol and is compatible with EPSON S1D13521 timing controllers for basic rail generation and sequencing. However, it lacks native Broadsheet-specific command extensions present in the TPS65181RGZT. For full Broadsheet protocol support (e.g., advanced waveform synchronization), TPS65181RGZT is recommended - though TPS65180RGZT remains functionally viable for simpler implementations.