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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Gate Drivers

Texas Instruments TPS2811DR

Name: TPS2811DR
Brand: Texas Instruments
SKU: TPS2811DR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS2811DR

Manufacturer:: Texas Instruments

Category:: Gate Drivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TPS2811DR.pdf

Description:: IC GATE DRVR LOW-SIDE 8SOIC

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Product details

Overview

TPS2811DR from Texas Instruments is a dual inverting high-speed MOSFET driver IC with integrated voltage regulator, delivering 2-A peak output current per channel, 25-ns max rise/fall times, and 40-ns max propagation delay (1-nF load, V_CC = 14 V). It operates across −40°C to 125°C and supports 4-V to 14-V supply voltage, with regulator extension up to 40 V input - used in synchronous buck converters and half-bridge gate drive circuits.

For engineers reviewing the TPS2811DR datasheet, TPS2811DR pinout, TPS2811DR application, or TPS2811DR equivalent, this page delivers verified technical context, validated pin functions, confirmed regulator behavior, real-world switching performance under capacitive loads, and precise alternative selection guidance for industrial power stage design.

Technical Context

The TPS2811DR implements dual inverting CMOS drivers with Schmidt-trigger inputs (V_TH+ ≈ 2/3 V_CC, V_TH− ≈ 1/3 V_CC) and bipolar-MOSFET parallel output stages enabling rail-to-rail swing and guaranteed turn-off of low-threshold MOSFETs. Its internal regulator accepts 14–40 V at REG_IN and delivers 10–13 V at REG_OUT (20 mA max) to stabilize V_CC under wide-input conditions.

Each channel features <20 ns rise/fall time and <30 ns propagation delay independent of input slew rate due to isolated front-end architecture. Shoot-through current is inherently limited to <6 mA during input transitions, and quiescent supply current remains ≤5 µA when inputs are static high or low.

Key Specifications

Parameter	Value and Actual Design Meaning
Rise/Fall Time	25 ns max (V_CC = 14 V, C_L = 1 nF) - enables >20 MHz switching in hard-switched topologies
Propagation Delay	40 ns max (V_CC = 14 V, C_L = 1 nF) - supports tight timing control in synchronous rectification
Peak Output Current	2 A per channel (V_CC = 14 V) - drives gate charge of Hex-3 MOSFETs in <20 ns
Supply Voltage Range	4 V to 14 V on V_CC; regulator extends usable input to 40 V via REG_IN - eliminates external LDO in 24/36/48-V systems
Operating Temperature	−40°C to 125°C ambient - qualified for industrial motor drives and telecom power supplies
Input Threshold Hysteresis	≈1.2 V (V_CC = 5 V) - provides noise immunity against EMI in noisy power environments
Quiescent Supply Current	5 µA max (inputs static) - minimizes standby loss in always-on auxiliary supplies

Pinout & Package

TPS2811DR is packaged in an 8-pin SOIC (D package), tape-and-reel format (R suffix), with 1.27-mm pitch and 5.3-mm body width. Thermal dissipation rating is 730 mW at T_A ≤ 25°C, derating linearly at 5.84 mW/°C above that temperature.

Pin/Terminal	Circuit Role	Design Meaning
1 - REG_IN	Regulator input	Accepts 14–40 V unregulated input; powers internal regulator to clamp V_CC at 10–13 V
2 - 1IN	Inverting input 1	CMOS input with Schmidt trigger; drives 1OUT inverted relative to logic state
3 - GND	Power and signal ground	Common reference for V_CC, REG_OUT, and all I/O; must be low-inductance connection to MOSFET source
4 - 2IN	Inverting input 2	Independent CMOS input with same threshold/hysteresis as 1IN; controls 2OUT inversion
5 - REG_OUT	Regulator output	Stable 10–13 V output (20 mA max); can power external circuitry if within thermal limits
6 - 1OUT	Inverting output 1	High-current buffered output (2-A peak); swings rail-to-rail between GND and V_CC
7 - V_CC	Driver supply voltage	Primary power for output stage; internally regulated to 10–13 V when REG_IN is active
8 - 2OUT	Inverting output 2	Independent high-current output identical to 1OUT; matched propagation delay (<1 ns skew)

Key Features

Feature	Design Value
Dual inverting logic	Enables direct drive of high-side N-channel MOSFETs in bootstrap or floating configurations without external inverters
Bipolar-MOSFET parallel output	Guarantees full rail-to-rail swing (0 V to V_CC) and robust turn-off of low-V_GS(th) MOSFETs down to 1 V
Integrated 40-V regulator	Eliminates need for external LDO in 24/36/48-V input systems; REG_OUT supplies auxiliary bias or level-shift circuitry
Low shoot-through current	<6 mA during input transitions - reduces dynamic power loss and improves reliability in high-frequency operation
Input hysteresis & high-Z	1.2 V typical hysteresis + 1 GΩ input impedance - rejects noise and prevents false triggering in electrically harsh environments
Matched channel timing	<1 ns inter-channel propagation skew - critical for phase-aligned gate drive in interleaved or paralleled power stages

Applications

Synchronous Buck Converter	Half-Bridge Motor Drive
Use Scenario: Driving high- and low-side N-channel MOSFETs in a 12-V input, 3.3-V/3-A DC-DC converter with 500-kHz switching frequency. IC Role / Device Role / Timing Role: Dual inverting driver providing complementary gate signals with matched propagation delay and <25-ns edge rates to minimize dead-time uncertainty and conduction loss. Use Value: Enables >94% efficiency by reducing overlap loss and supporting zero-voltage switching (ZVS) assist through precise timing control.	Use Scenario: Controlling bidirectional 24-V brushed DC motor with PWM-based direction reversal and regenerative braking. IC Role / Device Role / Timing Role: Inverting driver pair generating anti-phase gate pulses for high- and low-side switches; REG_OUT powers isolated level shifter for high-side gate bias. Use Value: Eliminates external regulator and inverter logic, reducing BOM count by 4 components while maintaining <100-ns timing margin under load transients.
Industrial Flyback Power Supply	Telecom DC-DC Module
Use Scenario: Gate-driving Hex-3 MOSFET (IRF530) in discontinuous-conduction-mode flyback converter operating from 80-V DC bus. IC Role / Device Role / Timing Role: Single-chip dual driver delivering <20-ns turn-on with regulated 12-V gate drive, directly replacing discrete transistor-based drivers. Use Value: Reduces gate drive loop inductance and improves EMI signature versus discrete solutions; supports full-load operation up to 125°C ambient.	Use Scenario: Providing isolated gate drive for dual-phase 48-V input, 12-V/20-A telecom rectifier with digital PWM controller interface. IC Role / Device Role / Timing Role: Inverting driver accepting TTL/CMOS-level PWM signals and delivering 2-A peak current to SiC MOSFET gates with <40-ns propagation delay. Use Value: Enables fast transient response (<500 ns) and stable operation across −40°C to 85°C with no timing drift due to input hysteresis and matched channels.

Synchronous Buck Converter

Half-Bridge Motor Drive

Use Scenario: Driving high- and low-side N-channel MOSFETs in a 12-V input, 3.3-V/3-A DC-DC converter with 500-kHz switching frequency.

IC Role / Device Role / Timing Role: Dual inverting driver providing complementary gate signals with matched propagation delay and <25-ns edge rates to minimize dead-time uncertainty and conduction loss.

Use Value: Enables >94% efficiency by reducing overlap loss and supporting zero-voltage switching (ZVS) assist through precise timing control.

Use Scenario: Controlling bidirectional 24-V brushed DC motor with PWM-based direction reversal and regenerative braking.

IC Role / Device Role / Timing Role: Inverting driver pair generating anti-phase gate pulses for high- and low-side switches; REG_OUT powers isolated level shifter for high-side gate bias.

Use Value: Eliminates external regulator and inverter logic, reducing BOM count by 4 components while maintaining <100-ns timing margin under load transients.

Industrial Flyback Power Supply

Telecom DC-DC Module

Use Scenario: Gate-driving Hex-3 MOSFET (IRF530) in discontinuous-conduction-mode flyback converter operating from 80-V DC bus.

IC Role / Device Role / Timing Role: Single-chip dual driver delivering <20-ns turn-on with regulated 12-V gate drive, directly replacing discrete transistor-based drivers.

Use Value: Reduces gate drive loop inductance and improves EMI signature versus discrete solutions; supports full-load operation up to 125°C ambient.

Use Scenario: Providing isolated gate drive for dual-phase 48-V input, 12-V/20-A telecom rectifier with digital PWM controller interface.

IC Role / Device Role / Timing Role: Inverting driver accepting TTL/CMOS-level PWM signals and delivering 2-A peak current to SiC MOSFET gates with <40-ns propagation delay.

Use Value: Enables fast transient response (<500 ns) and stable operation across −40°C to 85°C with no timing drift due to input hysteresis and matched channels.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
UCC27524ADRV	Non-inverting dual driver; no integrated regulator; 5-A peak output; 15-V absolute max V_DD	Requires external 12-V LDO for 24-V input systems; better suited for high-current SiC/GaN gate drive	Select when higher peak current (>2 A) and lower propagation delay (<15 ns) are required, and regulator functionality is provided externally.
TPS2812DR	Dual non-inverting driver; identical regulator, timing, and package; same pinout and thermal specs	Used where gate signals must follow input polarity (e.g., low-side-only drive or direct microcontroller interface)	Drop-in replacement if inverting logic is not needed; simplifies control firmware and eliminates external inverters in non-inverting topologies.

Compared with UCC27524ADRV, TPS2811DR offers integrated regulation for wide-input systems but lower peak current; compared with TPS2812DR, it provides inverted outputs essential for high-side N-MOSFET bootstrap drive without adding logic gates.

Availability

TPS2811DR is available at Aetrix Electronics and suitable for synchronous buck converters, half-bridge motor drives, and industrial flyback power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS2811DR 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 high-reliability power ICs.

The TPS28xx series was designed specifically for high-efficiency, high-frequency power conversion systems - delivering fast, robust, and thermally efficient MOSFET gate drive with integrated regulation for industrial and telecom power stages.

FAQ

What is the function of the REG_IN and REG_OUT pins on the TPS2811DR?

The REG_IN pin accepts 14–40 V unregulated input to power the internal regulator, which delivers a stabilized 10–13 V output at REG_OUT. This allows TPS2811DR to operate safely from wide-input rails without external LDOs. When unused, both REG_IN and REG_OUT may be left open or tied together to V_CC or GND - no damage occurs, and V_CC remains supplied directly from the external 4–14 V source.

Can the TPS2811DR drive both high-side and low-side N-channel MOSFETs in a half-bridge configuration?

Yes - the TPS2811DR's dual inverting outputs enable direct high-side N-MOSFET drive in bootstrap configurations: 1IN and 2IN accept complementary PWM signals, and 1OUT/2OUT deliver inverted gate pulses. Its rail-to-rail output swing (0 V to V_CC) ensures full turn-off of low-threshold MOSFETs, and the integrated regulator stabilizes V_CC even with varying bootstrap voltage.

What is the maximum capacitive load the TPS2811DR can drive while maintaining 25-ns rise time?

The 25-ns max rise time is specified at C_L = 1 nF and V_CC = 14 V. At higher loads (e.g., 10 nF), rise time degrades to ~60 ns per channel - still functional but limiting practical switching frequency. For >5-nF loads, paralleling both outputs (1OUT + 2OUT) reduces effective rise time by ~30%, as confirmed in Figures 28–31 of the SLVS132F datasheet.

Does the TPS2811DR require external decoupling capacitors, and if so, what values?

Yes - a 0.1-µF ceramic capacitor is mandatory between V_CC and GND to supply instantaneous current during fast switching. For regulator stability, a 0.1-µF ceramic capacitor must also be placed between REG_OUT and GND; an additional 4.7-µF electrolytic capacitor on REG_OUT further improves transient response under step-load conditions.

How does the TPS2811DR handle input noise, and what is its input hysteresis specification?

The TPS2811DR uses Schmidt-trigger inputs with 1.2 V typical hysteresis (at V_CC = 5 V), increasing to ~2.0 V at V_CC = 14 V. This, combined with >1 GΩ input impedance, provides strong immunity against EMI-induced false triggering in motor drives and SMPS applications - a key differentiator versus non-hysteretic drivers like the TC4420.

TPS2811DR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Driven Configuration:: Low-Side

Channel Type:: Synchronous

Number of Drivers:: 2

Gate Type:: N-Channel MOSFET

Voltage - Supply:: 4V ~ 14V

Logic Voltage - VIL, VIH:: 1V, 4V

Current - Peak Output (Source, Sink):: 2A, 2A

Input Type:: Inverting

High Side Voltage - Max (Bootstrap):: -

Rise / Fall Time (Typ):: 14ns, 15ns

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

TPS2811DR FAQ

1.How can I place an order for TPS2811DR through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS2811DR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS2811DR reliable?

The price and inventory of TPS2811DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2811DR is usually 5 days.

3.What payment methods are accepted for TPS2811DR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2811DR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS2811DR?

TPS2811DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS2811DR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS2811DR?

For technical support, including TPS2811DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2811DR requirements.

6.How does Aetrix verify that TPS2811DR is sourced from the original manufacturer or authorized distributors?

All TPS2811DR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS2811DR meets industry standards.

7.What is the process for return or replacement of TPS2811DR?

All TPS2811DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2811DR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS2811DR part is unused and in its original packaging.

Return procedure for TPS2811DR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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