Texas Instruments TPS65167RHAR

Overview

TPS65167RHAR from Texas Instruments is a compact, multi-rail LCD bias power supply IC for large-size TFT-LCD TV and monitor panels. It integrates a 15 V/1.7 A boost converter (Vs), a 3.3 V/2.5 A step-down converter (Vlogic), a –5 V/150 mA negative charge pump (VGL), a 30 V/50 mA positive charge pump (VGH), and an LDO controller (Vaux), all operating from a 6–14 V input. Its gate voltage shaping and high-voltage stress test capability support panel-level reliability validation.

For engineers reviewing the TPS65167RHAR datasheet, TPS65167RHAR pinout, TPS65167RHAR application, or TPS65167RHAR equivalent, key selection considerations include its 40-pin QFN package, integrated sequencing control via EN/GDLY pins, dual HVS test modes (Vs+VGH vs Vs-only), and precise regulation of five independent output rails with built-in short-circuit and thermal protection.

Technical Context

The TPS65167RHAR implements a fixed-frequency (750 kHz) voltage-mode PWM boost converter for Vs generation, paired with a 1.5-A buck regulator for Vlogic using internal N-MOSFET switching and external compensation. Its dual-mode (doubler/tripler) positive charge pump delivers regulated VGH up to 30 V, while a dedicated negative charge pump driver supplies VGL down to –5 V with adjustable feedback.

Gate voltage shaping is achieved via a high-voltage switch controlled by CTRL and DRN pins, enabling programmable VGH slew rate and timing alignment with panel requirements. The device includes a temperature sensor (TEMP pin, 5.7 mV/°C coefficient), undervoltage lockout (5.2 V threshold), and independent overvoltage protection on Vs (20.2 V trip) and short-circuit recovery cycling on all outputs.

Key Specifications

Pinout & Package

TPS65167RHAR is housed in a 40-pin QFN package (RHA) with exposed thermal die pad connected to GND. The package supports tape-and-reel delivery (R suffix) with 3000 units per reel.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LCD bias power supply applications.

Compared with TPS65167ARHAR and TPS65165RHAR, the TPS65167RHAR uniquely supports simultaneous Vs+VGH high-voltage stress testing and delivers higher VGH current for large-panel gate drivers, making it the only option for full-featured TV panel validation and high-resolution display systems.

Availability

TPS65167RHAR is available at Aetrix Electronics and suitable for large-format LCD TV panels, commercial monitor power systems, panel burn-in testers, and TFT gate driver reference designs requiring stable component supply and long-term production continuity.

Supply support for TPS65167RHAR 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 display power solutions.

The TPS65167RHAR belongs to TI's LCD bias power management product line, engineered specifically to consolidate multiple voltage rails and sequencing functions into a single IC for large-screen TFT-LCD television and monitor applications.

FAQ

What is the maximum output current capability of the VGH rail on the TPS65167RHAR?

The TPS65167RHAR delivers up to 50 mA on the VGH rail at 30 V output. This is specified under typical conditions (AVIN = 12 V, TA = 25°C) and remains stable across the full –40°C to 85°C operating range. The VGH output uses an adaptive doubler/tripler charge pump architecture with effective output resistance below 91 Ω at 50 mA, ensuring minimal voltage droop under dynamic panel loading.

How does the high-voltage stress test mode function on the TPS65167RHAR?

When the HVS pin is pulled high, the TPS65167RHAR enters high-voltage stress test mode, raising both Vs (up to 19 V) and VGH (to 30 V) simultaneously. This mode is enabled exclusively on the TPS65167 variant - unlike the TPS65167A - and is used for accelerated panel reliability testing. RHVS pin configuration sets the elevated Vs voltage during this mode.

Can the TPS65167RHAR generate a 1.8-V auxiliary rail, and how is it implemented?

Yes, the TPS65167RHAR supports a 1.8-V/500-mA auxiliary rail (Vaux) via its integrated LDO controller. It drives an external PNP transistor connected to the BASE pin (Pin 40), with feedback sensed at FBLDO (Pin 39). The LDO achieves ±2% output accuracy and 0.48 %/A load regulation, making it suitable for powering timing controllers or interface logic requiring clean, low-noise supply.

What thermal management features are built into the TPS65167RHAR?

The TPS65167RHAR includes thermal shutdown at 155°C with 5°C hysteresis, and its 40-pin QFN (RHA) package features an exposed thermal die pad connected to GND. At 85°C ambient, it supports 1.3 W continuous power dissipation (RθJA = 30°C/W). The integrated temperature sensor (TEMP pin) provides a linear analog output (1.2–2.5 V) for system-level thermal monitoring and throttling.

Is the TPS65167RHAR pin-compatible with other devices in the TPS6516x family?

The TPS65167RHAR shares the same 40-pin QFN (RHA) package and pinout with TPS65167ARHAR, enabling drop-in substitution where only Vs stress testing is required. However, it is not pin-compatible with TPS65165RHAR due to differences in internal block configuration and signal mapping - particularly absence of gate voltage shaping and reduced VGH drive capability.