Texas Instruments TPS65180BRGZT

Overview

TPS65180BRGZT from Texas Instruments is a single-chip PMIC optimized for E Ink® Vizplex™ electronic paper displays, integrating dual tracking LDOs (±15 V, 120 mA), boost and inverting buck-boost DC–DC converters (±17 V), two charge pumps (VDDH at 22 V/10 mA, VEE at –20 V/12 mA), I²C-programmable VCOM driver (–0.3 V to –2.5 V), thermistor monitoring, and power sequencing - all in a 48-pin VQFN package.

For engineers reviewing the TPS65180BRGZT datasheet, TPS65180BRGZT pinout, TPS65180BRGZT application, or TPS65180BRGZT equivalent, key selection considerations include ±15-V LDO tracking accuracy (±50 mV), VCOM 8-bit programmability (11-mV step), I²C slave address 0x48h, thermal shutdown at 150°C, and compatibility with EPSON S1D13522/S1D13521 timing controllers.

Technical Context

The TPS65180BRGZT implements a tightly coupled power architecture for e-paper panels: its boost converter (DCDC1) generates +17 V, which the CP1 charge pump boosts to +22 V for gate drivers; its inverting buck-boost (DCDC2) generates –17 V, boosted by CP2 to –20 V. Dual LDOs (LDO1/LDO2) regulate these rails to ±15 V for source drivers with tracking maintained within ±50 mV across load and temperature.

It supports host-triggered temperature acquisition via I²C (not auto-refresh), uses dedicated enable pins (PWR0–PWR3) for discrete rail control, and features open-drain nINT and PWR_GOOD outputs with fault reporting for undervoltage, thermal shutdown, and rail regulation loss - all operating from a 3 V to 6 V input supply over –10°C to 85°C ambient.

Key Specifications

Pinout & Package

TPS65180BRGZT is housed in a thermally enhanced 48-pin VQFN (RGZ) package measuring 7.0 mm × 7.0 mm × 0.9 mm, with an exposed PowerPAD (PBKG) that must be connected to VN for efficient heat dissipation - not grounded.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar e-paper power management applications.

Compared with TPS65180BRGZT, TPS65181BRGZT offers autonomous temperature sampling but lacks host-triggered flexibility, while TPS65185RSLR trades VCOM analog adjustment for higher integration of system-level supplies - both require PCB layout changes due to different pinouts and package sizes.

Availability

TPS65180BRGZT is available at Aetrix Electronics and suitable for e-book readers, electronic shelf labels, EPSON-based display modules, and OMAP-driven EPD reference designs requiring stable component supply and long-term industrial availability.

Supply support for TPS65180BRGZT 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 deep expertise in low-power display interfaces and energy-efficient power conversion.

The TPS6518x product line was designed specifically for E Ink® Vizplex™ electronic paper displays, addressing the unique voltage sequencing, tracking, and low-quiescent-current requirements of bistable panel driving in portable and battery-powered applications.

FAQ

What is the input voltage range supported by the TPS65180BRGZT?

The TPS65180BRGZT supports an input voltage range of 3 V to 6 V on its VIN, VIN_P, and VIN3P3 pins. This allows direct operation from common lithium-ion/polymer batteries or regulated intermediate supplies. Operation below 3 V triggers undervoltage lockout (VUVLO = 2.9 V), and absolute maximum rating is 7 V - exceeding this risks permanent damage. The TPS65180BRGZT maintains full functionality across this range, including LDO regulation, charge pump operation, and I²C communication.

How does the TPS65180BRGZT implement VCOM voltage adjustment?

The TPS65180BRGZT implements VCOM adjustment via an 8-bit DAC controlled through its I²C interface (register VCOM_SET[7:0]), enabling programmable output from –0.3 V to –2.5 V in nominal 11-mV steps. It also supports analog adjustment via the VCOM_XADJ pin (0–1 V input mapped 1:1 to VCOM). The internal VCOM driver can source or sink up to 15 mA and includes a dedicated power switch (VCOM_PWR) to isolate the panel during update transitions - critical for preventing ghosting in the TPS65180BRGZT application.

Does the TPS65180BRGZT support automatic temperature measurement?

No, the TPS65180BRGZT requires the host processor to trigger temperature acquisition via an I²C write command - it does not auto-sample like the TPS65181x variants. Temperature data is acquired from the TS pin (connected to a 10-kΩ NTC + 43-kΩ linearization resistor), converted by an internal ADC, and stored in the TMST_VALUE register. Accuracy is ±1°C from 0°C to 50°C. The TPS65180BRGZT provides interrupt capability when temperature exceeds programmable HOT/COLD thresholds, but acquisition remains host-initiated.

What are the key differences between TPS65180BRGZT and TPS65181BRGZT?

The TPS65180BRGZT requires host-triggered temperature reads and manual INT register clearing after faults, whereas the TPS65181BRGZT auto-refreshes temperature every 60 s and auto-clears interrupts. Both share identical rail specifications, pinout, and package. The TPS65180BRGZT is marked "Not Recommended for New Designs" (NRND) per TI documentation, while TPS65181BRGZT remains active - making the latter preferred for new projects unless legacy host firmware mandates TPS65180BRGZT's explicit control model.

Can the TPS65180BRGZT power EPSON S1D13521 (Broadsheet) timing controllers?

Yes, the TPS65180BRGZT supports EPSON S1D13521 Broadsheet controllers, but requires use of the standard I²C protocol mode - not the Broadsheet-specific protocol supported by TPS65181B. All voltage rails (±15 V LDOs, ±22 V/–20 V charge pumps, VCOM) match S1D13521 requirements. However, firmware must handle temperature polling and interrupt management explicitly, as the TPS65180BRGZT does not implement Broadsheet's extended register map or auto-recovery features.