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Texas Instruments TPS2834PWP
- Part No.:
- TPS2834PWP
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS2834PWP.pdf
- Description:
- IC GATE DRVR HALF-BRIDG 14HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,151
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Product details
Overview
TPS2834PWP from Texas Instruments is a noninverting dual MOSFET driver for synchronous-buck power stages, delivering 2.4-A typical peak output current per channel, 50-ns max rise/fall times with 3.3-nF load, and adaptive dead-time control to prevent shoot-through. It operates from 4.5-V to 15-V supply voltage and supports −40°C to 125°C virtual junction temperature range in high-density power supplies.
For engineers reviewing the TPS2834PWP datasheet, TPS2834PWP pinout, TPS2834PWP application, or TPS2834PWP equivalent, key selection factors include TTL-compatible inputs, integrated Schottky bootstrap diode, CROWBAR overvoltage protection, SYNC-controlled synchronous/nonsynchronous mode, and thermal performance in the HTSSOP PowerPAD package.
Technical Context
The TPS2834PWP integrates independent high-side and low-side drivers with adaptive dead-time logic that monitors the DT terminal (connected to the power FET junction) to enforce nonoverlap timing, eliminating shoot-through during switching transitions. Its high-side driver supports both floating bootstrap and ground-reference configurations.
Control functions include TTL-compatible ENABLE (global disable), SYNC (low-side driver enable/disable for synchronous/nonsynchronous operation), and CROWBAR (forced low-side turn-on for overvoltage clamp). The noninverting input architecture distinguishes it from the inverting TPS2835 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 15 V - Enables direct use with common intermediate bus voltages (5 V, 12 V) without external regulation. |
| Peak Output Current | 2.4 A typical high-side source/sink - Drives large gate capacitances of low-rDS(on) N-channel MOSFETs in high-current buck stages. |
| Rise/Fall Time | ≤50 ns with 3.3-nF load - Ensures fast switching transitions critical for high-frequency (>200 kHz) power conversion efficiency. |
| Operating Temperature | −40°C to 125°C virtual junction - Supports industrial and automotive under-hood applications with sustained thermal stress. |
| Dead-Time Control | Adaptive DT input monitoring - Dynamically enforces minimum off-time between high/low-side drivers to prevent cross-conduction. |
| Bootstrap Diode | Integrated Schottky - Eliminates external diode, reduces board area, and improves bootstrap recharge efficiency at high duty cycles. |
| CROWBAR Function | TTL-compatible active-low OVP override - Forces low-side FET conduction to clamp output voltage during high-side short failure. |
Pinout & Package
TPS2834PWP is housed in a thermally enhanced 14-pin HTSSOP PowerPAD (PWP) package with exposed thermal pad for improved heat dissipation in high-power density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ENABLE (Pin 1) | Digital input | Global disable: pulls both drivers low when asserted low; TTL-compatible threshold ensures robust noise immunity. |
| IN (Pin 2) | Signal input | Noninverting control input - directly gates high/low-side drivers without polarity inversion (distinguishes TPS2834 from TPS2835). |
| CROWBAR (Pin 3) | Fault override input | Active-low OVP trigger: forces low-side driver ON and high-side OFF regardless of IN state to protect downstream loads. |
| NC (Pins 4, 9, 13) | No internal connection | Unbonded pins - must be left floating or grounded per layout best practices; no electrical function. |
| SYNC (Pin 5) | Mode select input | High = synchronous rectification (low-side active); Low = nonsynchronous (low-side disabled) - enables topology flexibility. |
| DT (Pin 6) | Dead-time sense input | Connects to power FET drain-source node; enables adaptive timing to prevent shoot-through during switching transitions. |
| PGND (Pin 7) | Power ground | High-current return path for driver outputs - must be connected to FET source/power ground plane with low-inductance trace. |
| VCC (Pin 8) | Supply input | Primary bias rail; requires local 1-µF ceramic bypass capacitor to PGND for stable gate drive under transient load. |
| BOOT (Pin 14) | Bootstrap supply | Provides floating high-side gate voltage via external bootstrap capacitor (0.1–1 µF) between BOOT and BOOTLO. |
| HIGHDR (Pin 12) | High-side output | Drives gate of high-side N-MOSFET; rated for 2.4-A peak sink/source into capacitive loads. |
| BOOTLO (Pin 11) | Bootstrap return | Connects to high/low-side FET junction - serves as reference for bootstrap capacitor and DT sensing. |
| LOWDR (Pin 10) | Low-side output | Drives gate of low-side N-MOSFET; delivers 3.5-A peak sink capability at 12 V for fast turn-off. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Dead-Time Control | Monitors DT node voltage to dynamically adjust high/low-side turn-on delays, eliminating need for fixed external timing components. |
| Integrated Schottky Bootstrap Diode | Reduces component count and PCB footprint while improving bootstrap capacitor recharge efficiency at high duty cycles. |
| CROWBAR Overvoltage Protection | Hardware-level fault response that overrides normal logic to clamp output voltage during high-side FET short-circuit events. |
| TTL-Compatible Digital Inputs | EN, SYNC, CROWBAR, and IN accept standard 0 V / 3.3 V / 5 V logic levels without level-shifting circuitry. |
| Thermally Enhanced PWP Package | HTSSOP with exposed PowerPAD delivers 2.07 °C/W junction-to-case thermal resistance for reliable 2.4-A continuous drive. |
Applications
| Server VRM Power Stage | Industrial DC-DC Converter |
|---|---|
Use Scenario: High-efficiency 12 V input to 1.2 V/60 A CPU core supply in datacenter servers. IC Role / Device Role / Timing Role: Dual gate driver controlling parallel high-side/low-side SiC or GaN FETs in multiphase buck topology. Use Value: Adaptive dead-time prevents shoot-through losses at >500 kHz switching, while 2.4-A drive sustains fast dV/dt for <10 ns propagation delay. | Use Scenario: 24 V to 5 V/10 A isolated auxiliary supply in PLC backplane power distribution. IC Role / Device Role / Timing Role: Synchronous-buck driver enabling >93% efficiency at full load with minimal thermal derating. Use Value: CROWBAR function clamps output to safe voltage during field-replaceable module hot-swap faults, preventing system-wide brownout. |
| Automotive ADAS ECU Power | Telecom Point-of-Load Regulator |
Use Scenario: 12 V battery-fed 3.3 V/3 A supply for radar processor SoC in engine bay environment. IC Role / Device Role / Timing Role: High-reliability gate driver operating across −40°C to 125°C virtual junction temperature range. Use Value: HTSSOP PowerPAD package maintains thermal stability under sustained 2.4-A peak currents, avoiding thermal shutdown in sealed enclosures. | Use Scenario: 48 V to 1.8 V/20 A VR13-compliant supply for 5G baseband ASICs. IC Role / Device Role / Timing Role: Noninverting driver synchronized with external PWM controller (e.g., UCD92xx) via SYNC and DT signals. Use Value: TTL-compatible IN and SYNC inputs simplify interface with digital power controllers, reducing BOM cost vs. level-shifted alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2834D | Same functional spec, SOIC-14 package with higher thermal resistance (7.49 °C/W) and no exposed thermal pad. | Limited to lower-power (<15 A) or forced-air-cooled designs due to reduced thermal performance. | Select TPS2834D only when legacy SOIC footprint compatibility is required and power density is not constrained. |
| TPS2835PWP | Identical package and specs except inverting input logic - IN signal polarity is reversed. | Requires inverted PWM signal from controller; unsuitable for direct replacement without firmware/hardware modification. | Choose TPS2835PWP only when the upstream controller provides inverted gate drive signals or inverting logic is intentionally designed. |
Compared with TPS2834D, TPS2834PWP offers superior thermal management for high-current applications; compared with TPS2835PWP, it preserves noninverting signal path integrity without requiring controller-level logic inversion.
Availability
TPS2834PWP is available at Aetrix Electronics and suitable for server VRMs, industrial DC-DC converters, and automotive ADAS ECUs requiring stable component supply, long-term lifecycle support, and consistent thermal performance in compact layouts.
Supply support for TPS2834PWP 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 power IC design expertise.
The TPS283x family was engineered specifically for high-performance synchronous-buck power stages in computing, telecom, and industrial systems where shoot-through prevention, thermal robustness, and gate drive strength are critical.
FAQ
What is the maximum allowable voltage on the BOOT pin of the TPS2834PWP relative to PGND?
The absolute maximum rating for BOOT to PGND is 30 V. This limit ensures safe operation of the internal high-side driver circuitry when using bootstrap configurations with high input voltages or fast-switching transients. Exceeding this voltage risks permanent damage to the TPS2834PWP. Designers must size the bootstrap capacitor and select FETs such that the BOOT-to-PGND differential remains within this bound across all operating conditions, including startup and fault events.
Does the TPS2834PWP require an external bootstrap diode?
No, the TPS2834PWP includes an integrated Schottky bootstrap diode. This eliminates the need for an external diode, reducing component count, PCB area, and potential failure points. The internal diode enables efficient charging of the bootstrap capacitor during low-side conduction, supporting high-duty-cycle operation without significant voltage droop on the BOOT rail.
How does the CROWBAR function protect the system when the high-side FET fails shorted?
When the CROWBAR pin is driven low, the TPS2834PWP immediately turns on the low-side driver and disables the high-side driver - overriding the IN signal and all other controls. This forces the output node to PGND, clamping the output voltage to near zero and preventing destructive overvoltage on downstream loads. The function acts as hardware-level fail-safe protection independent of controller firmware or timing.
What is the recommended layout practice for the BOOTLO pin on the TPS2834PWP?
The BOOTLO pin must be connected directly to the drain-source junction of the high-side and low-side power FETs using the shortest possible low-inductance trace. This node carries high di/dt gate drive return current and serves as the reference for both the bootstrap capacitor and the DT dead-time sensing circuit. Any added inductance degrades switching speed, increases shoot-through risk, and causes voltage ringing that may falsely trigger DT protection.
Can the TPS2834PWP operate in nonsynchronous mode, and how is it configured?
Yes, the TPS2834PWP supports nonsynchronous operation via the SYNC pin. When SYNC is pulled low, the low-side driver is disabled entirely, allowing use with a freewheeling diode instead of a synchronous FET. This configuration reduces complexity and cost in lower-efficiency or lower-current applications where diode conduction loss is acceptable. The high-side driver remains fully functional and controlled by the IN signal.
TPS2834PWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 15V
- Logic Voltage - VIL, VIH:
- 1V, 2V
- Current - Peak Output (Source, Sink):
- 2.7A, 2.4A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 28 V
- Rise / Fall Time (Typ):
- 50ns, 40ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-HTSSOP
TPS2834PWP FAQ
1.How can I place an order for TPS2834PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2834PWP 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 TPS2834PWP reliable?
The price and inventory of TPS2834PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2834PWP is usually 5 days.
3.What payment methods are accepted for TPS2834PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2834PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2834PWP?
TPS2834PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2834PWP 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 TPS2834PWP?
For technical support, including TPS2834PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2834PWP requirements.
6.How does Aetrix verify that TPS2834PWP is sourced from the original manufacturer or authorized distributors?
All TPS2834PWP 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 TPS2834PWP meets industry standards.
7.What is the process for return or replacement of TPS2834PWP?
All TPS2834PWP units undergo pre-shipment inspection (PSI). If there is an issue with TPS2834PWP, 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 TPS2834PWP part is unused and in its original packaging.
Return procedure for TPS2834PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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