Texas Instruments TPS2828DBVT

Overview

TPS2828DBVT from Texas Instruments is an inverting single-channel high-speed MOSFET driver IC designed for gate driving of power MOSFETs in switching converters. It delivers 2-A peak output current, achieves ≤25-ns rise/fall times and ≤40-ns propagation delay into 1-nF load, operates from 4-V to 14-V VCC supply, and features no internal voltage regulator-enabling <15-µA quiescent current when inputs are static. It is used in high-frequency DC/DC converters requiring low-power, fast-switching gate drive.

For engineers reviewing the TPS2828DBVT datasheet, TPS2828DBVT pinout, TPS2828DBVT application, or TPS2828DBVT equivalent, key selection considerations include its inverting logic configuration, absence of internal regulator (requiring external VCC regulation), SOT-23-5 package constraints, and suitability for low-quiescent-current 4–14-V gate-drive systems where shoot-through minimization and BiCMOS output stage performance are critical.

Technical Context

The TPS2828DBVT implements a CMOS input stage with threshold voltages at ~⅓VCC (negative-going) and ~⅔VCC (positive-going), enabling robust noise immunity in noisy power-converter environments. Its BiCMOS output stage provides rail-to-rail swing with low on-resistance, delivering ±2-A peak current while minimizing shoot-through via inherent design timing control.

This device belongs to the TPS28xx family but omits both the internal voltage regulator (unlike TPS2816–TPS2819) and active pullup circuit (unlike TPS2816/TPS2818), resulting in ultra-low ICC (<15 µA) and simplified biasing-making it optimal for regulated 4–14-V supply rails where external regulation is already present.

Key Specifications

Pinout & Package

TPS2828DBVT is housed in a 5-pin SOT-23 (DBV) package, tape-and-reel packaged (250 units/reel), with pin 1 marked by a dot. Pin 1 (VDD) is not internally connected - must be left floating or tied to GND per TI recommendation to avoid latch-up risk.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2818DBVT, TPS2828DBVT eliminates regulator overhead for lower ICC and tighter thermal control in fixed 4–14-V systems; versus UCC27524ADRV, it offers pin-compatible simplicity and lower system cost in single-channel, inverting, low-quiescent applications.

Availability

TPS2828DBVT is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, motor gate drivers, and industrial I/O modules requiring stable component supply, guaranteed -40°C to 125°C operation, and low-quiescent gate drive.

Supply support for TPS2828DBVT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TPS28xx product line was engineered specifically for high-efficiency, high-frequency power conversion systems-emphasizing fast switching, shoot-through immunity, and robust operation in thermally demanding environments.

FAQ

What is the function of Pin 1 (VDD) on the TPS2828DBVT?

Pin 1 (VDD) on the TPS2828DBVT is not internally connected. Unlike TPS2816–TPS2819 variants, the TPS2828DBVT omits the internal voltage regulator, so VDD must be left unconnected or tied to GND per TI's datasheet guidance. Connecting VDD to any voltage risks latch-up or damage.

Can TPS2828DBVT drive a 10-nF gate capacitance effectively?

The TPS2828DBVT is characterized for 1-nF loads, with ≤25-ns rise/fall times and ≤40-ns propagation delay. While it can drive 10-nF loads, edge speeds degrade-typical rise time increases to ~65 ns at 10-nF (per Figure 4 extrapolation). For such loads, verify layout integrity, gate resistance, and thermal limits; consider higher-current drivers like UCC27524 if <30-ns edges are required.

Does TPS2828DBVT support 3.3-V logic input levels?

No. The TPS2828DBVT uses CMOS-compatible thresholds referenced to VCC: negative-going threshold ≈⅓VCC and positive-going ≈⅔VCC. With VCC = 4 V minimum, the lowest usable input high is ~2.7 V. At VCC = 4 V, a 3.3-V logic signal exceeds VCC and violates absolute maximum rating (IN ≤ VCC + 0.5 V); thus, 3.3-V logic is incompatible unless VCC ≥ 3.3 V and proper level-shifting is applied.

How does TPS2828DBVT minimize shoot-through current?

The TPS2828DBVT minimizes shoot-through via inherent BiCMOS output stage design that avoids simultaneous high-side/low-side conduction. Its input stage includes controlled transition timing and threshold hysteresis (~1.3 V), while the output stage uses non-overlapping drive waveforms-verified in TI's Figure 18–19 shoot-through current plots showing <1 mA peak under worst-case slewing conditions.

Is TPS2828DBVT pin-compatible with TPS2818DBVT?

Yes-TPS2828DBVT and TPS2818DBVT share identical SOT-23-5 (DBV) packaging, pinout, and mechanical footprint. However, they differ electrically: TPS2818DBVT has a functional VDD pin (internal regulator enabled), while TPS2828DBVT's VDD is NC. Swapping them requires verifying VDD connection (must float/GND for TPS2828DBVT; must supply 14–40 V for TPS2818DBVT) and validating ICC impact on system standby power.