Texas Instruments TPS65182BRGZT

Overview

TPS65182BRGZT 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), ±17-V DC/DC converters, and an adjustable VCOM driver (–0.3 V to –2.5 V). It operates from a 3 V to 6 V input and supports precise panel backplane biasing in e-book readers and active-matrix EPD panels up to 9.7 inches.

For engineers reviewing the TPS65182BRGZT datasheet, TPS65182BRGZT pinout, TPS65182BRGZT application, or TPS65182BRGZT equivalent, this page delivers verified electrical parameters, I²C-configurable rail sequencing, thermal monitoring with ±1°C accuracy (0°C–50°C), and confirmed compatibility with EPSON S1D13522/S1D13521 timing controllers and OMAP-based processors.

Technical Context

The TPS65182BRGZT implements independent power domains: a boost converter (DCDC1) generating +17 V for VDDH pumping, an inverting buck-boost (DCDC2) generating –17 V for VEE pumping, and two tracking LDOs (LDO1/LDO2) delivering tightly regulated ±15 V outputs with ≤±50 mV inter-rail mismatch. All rails are enabled/disabled via dedicated GPIO pins (PWR0–PWR3) or I²C commands.

Its integrated VCOM driver uses either external potentiometer control (via VCOM_XADJ) or I²C-adjustable linear amplification (gain = 1 V/V) to source/sink up to 15 mA while maintaining panel voltage stability. Temperature sensing employs a 10-kΩ NTC thermistor with 43-kΩ linearization resistor at the TS pin, digitized by a 16-bit ADC with 19 µs conversion time and programmable hot/cold interrupts.

Key Specifications

Pinout & Package

TPS65182BRGZT is housed in a thermally enhanced 48-pin VQFN package (7 mm × 7 mm × 0.9 mm) with exposed PowerPad (PBKG) connected to VN for efficient heat dissipation. The package supports JEDEC-standard PCB layout with 2 oz. copper planes on top/bottom layers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS65182BRGZT, the TPS65185RSLR offers higher gate voltage headroom but sacrifices VCOM linearity and thermal monitoring, while the MAX17135ATI+ reduces board area but adds system-level complexity for temperature management-making TPS65182BRGZT optimal for Vizplex-class displays needing precision biasing and closed-loop thermal adaptation.

Availability

TPS65182BRGZT is available at Aetrix Electronics and suitable for e-book reader production, EPSON timing controller integration, and OMAP-based EPD platform development requiring stable component supply and long-term lifecycle support.

Supply support for TPS65182BRGZT 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 50 years of innovation in energy-efficient IC design.

The TPS65182x product line was developed specifically to consolidate power delivery for E Ink Vizplex electronic paper displays-addressing tight voltage tracking, ultra-low sleep current, and panel-temperature-aware biasing in portable reading devices.

FAQ

What is the primary application target for the TPS65182BRGZT?

The TPS65182BRGZT is purpose-built for powering E Ink® Vizplex™ electronic paper displays in e-book readers and portable EPD devices. It delivers tightly tracked ±15-V source driver supplies, ±22-V/–20-V gate driver voltages, and adjustable VCOM biasing-all from a single 3–6-V input. Its integrated thermistor interface and I²C programmability make it ideal for temperature-adaptive waveform control in panels up to 9.7 inches.

Does the TPS65182BRGZT support I²C voltage adjustment of its output rails?

Yes, the TPS65182BRGZT supports full I²C-based voltage adjustment of all major rails: LDO1 (VPOS), LDO2 (VNEG), VCOM, and charge pump setpoints. Using standard-mode I²C (400 kHz, slave address 0x48h), users can dynamically trim outputs in 250-mV steps for VPOS/VNEG and select VCOM levels across its –0.3 V to –2.5 V range-enabling panel-specific calibration without hardware changes.

How does the TPS65182BRGZT ensure accurate VPOS–VNEG tracking?

The TPS65182BRGZT guarantees VPOS–VNEG differential voltage remains within ±50 mV across temperature (0°C–60°C) and load (±20 mA) via matched internal feedback networks and shared reference architecture. This tracking is inherent to the LDO design-not dependent on external components-and is validated in production testing per the SLVSAA2D datasheet Section 7.5.

What thermal performance can be expected from the TPS65182BRGZT in continuous operation?

When mounted on a JEDEC-standard 4-layer PCB with 2 oz. copper and proper thermal vias to the PBKG pad, the TPS65182BRGZT achieves a junction-to-board thermal resistance (RθJB) of 7.1°C/W. At 2 W total dissipation, this yields a ~14°C temperature rise above board temperature-well within the 125°C max junction rating and enabling stable operation in sealed e-reader enclosures.

Is the TPS65182BRGZT compatible with EPSON S1D13521 and S1D13522 timing controllers?

Yes, the TPS65182BRGZT is explicitly qualified for use with both EPSON S1D13521 (Broadsheet) and S1D13522 (ISIS) timing controllers. Its default power-up sequence matches ISIS timing requirements, and its ±15-V LDO outputs meet Broadsheet's strict VPOS–VNEG differential specification (<50 mV), as documented in TI's TPS65182x product folder and application notes.