Texas Instruments TPS2829DBVR

Overview

TPS2829DBVR from Texas Instruments is a noninverting single-channel high-speed MOSFET driver IC designed for gate-driving power MOSFETs in switching converters. It delivers 2-A peak output current, achieves 25-ns max rise/fall times and 40-ns max propagation delay (1-nF load), operates from 4-V to 14-V supply, and features ultra-low 15-µA max quiescent current - ideal for low-power DC/DC converter control stages.

For engineers reviewing the TPS2829DBVR datasheet, TPS2829DBVR pinout, TPS2829DBVR application, or TPS2829DBVR equivalent, key selection considerations include its regulator-free architecture, SOT-23-5 package footprint, CMOS-compatible input thresholds (≈2/3 VCC high, ≈1/3 VCC low), latch-up immunity, and –40°C to 125°C operation - critical for space-constrained, thermally demanding power designs.

Technical Context

The TPS2829DBVR uses a BiCMOS output stage to achieve high instantaneous drive current while minimizing rail-to-rail voltage drop. Its input stage implements standard CMOS threshold logic with hysteresis (1.3 V), eliminating shoot-through during transitions and enabling clean edge fidelity at high frequencies.

Unlike TPS281x/TPS2819 variants, the TPS2829DBVR omits both the internal voltage regulator and active pullup circuit - reducing quiescent current to ≤15 µA but requiring external logic-level compatibility and separate biasing for open-collector controllers.

Key Specifications

Pinout & Package

TPS2829DBVR is housed in a 5-pin SOT-23 (DBV) package - surface-mount, tape-and-reel compatible, with 0.95-mm maximum height and 2.9-mm × 1.6-mm footprint. Pin 1 is marked via laser scribe; orientation follows JEDEC MO-178, quadrant Q3 feed direction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2819DBVR, the TPS2829DBVR trades regulator flexibility and higher drive strength for ultra-low ICC and simpler biasing - making it optimal for fixed 4–14-V, low-power systems. Versus UCC27517DBVR, it offers significantly lower static power but less peak current and slower edge rates, favoring cost-sensitive, thermally constrained 100–500 kHz applications.

Availability

TPS2829DBVR is available at Aetrix Electronics and suitable for DC/DC converters, motor drive stages, industrial PLC output modules, and telecom intermediate bus converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant SOT-23 packaging.

Supply support for TPS2829DBVR 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 high-reliability power IC design.

The TPS28xx family was developed to deliver robust, low-cost gate driving for power MOSFETs in switching regulators and motor controls - emphasizing speed, latch-up immunity, and thermal resilience across industrial and automotive environments.

FAQ

What is the function of Pin 1 (VDD) on the TPS2829DBVR?

Pin 1 (VDD) on the TPS2829DBVR is a no-connect terminal - the internal voltage regulator is omitted in this variant. Per TI's SLVS160C datasheet, VDD must be left unconnected or tied to GND; applying voltage risks undefined behavior. This distinguishes TPS2829DBVR from TPS2819DBVR, where VDD is an active regulator input.

Does the TPS2829DBVR support 3.3-V logic input levels?

Yes, the TPS2829DBVR supports 3.3-V logic inputs when VCC = 3.3 V. Its CMOS-compatible input thresholds scale with VCC: rising threshold ≈2.2 V (2/3 × 3.3 V), falling threshold ≈1.1 V (1/3 × 3.3 V), with 1.3-V hysteresis. Input current remains ≤0.2 µA at 0 V or 3.3 V, ensuring compatibility with low-power microcontrollers.

Can the TPS2829DBVR drive a 2000-pF gate capacitance effectively?

Yes, the TPS2829DBVR can drive 2000-pF loads with measured rise/fall times of ≤35 ns at VCC = 5 V (per Figure 4–5 in SLVS160C). Its 2-A peak output current ensures rapid gate charging; however, layout best practices - including short traces, local 0.1-µF ceramic bypass at VCC–GND, and optional 10-Ω series gate resistor - are essential to suppress ringing.

Is the TPS2829DBVR pin-compatible with other TPS28xx devices in SOT-23-5?

Yes, the TPS2829DBVR shares identical SOT-23-5 (DBV) pinout and footprint with TPS2816/17/18/19/28 variants. Pin assignments (VDD, GND, IN, OUT, VCC) match exactly. However, functional differences exist: TPS2829DBVR lacks the internal regulator and active pullup, so direct substitution requires verifying that external biasing and controller interface remain compatible.

What is the maximum continuous output current rating for the TPS2829DBVR?

The TPS2829DBVR is rated for ±100 mA continuous output current (per Absolute Maximum Ratings table, page 4 of SLVS160C). While it delivers 2-A peak current for short gate-charge pulses, sustained DC loading beyond ±100 mA risks exceeding thermal limits - especially given its 437-mW power dissipation rating at TA ≤ 25°C in the DBV package.