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Texas Instruments TPS2834PWPR
- Part No.:
- TPS2834PWPR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS2834PWPR.pdf
- Description:
- IC GATE DRVR HALF-BRIDG 14HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,710
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Product details
Overview
TPS2834PWPR from Texas Instruments is a noninverting dual MOSFET driver IC for synchronous-buck power stages, featuring adaptive dead-time control, 2.4-A typical peak output current, 50-ns max rise/fall times with 3.3-nF load, and TTL-compatible inputs. It operates across 4.5-V to 15-V supply voltage and −40°C to 125°C junction temperature, enabling high-efficiency DC/DC conversion in server VRMs and telecom POL modules.
For engineers reviewing the TPS2834PWPR datasheet, TPS2834PWPR pinout, TPS2834PWPR application, or TPS2834PWPR equivalent, key selection criteria include bootstrap vs. ground-reference high-side configuration, CROWBAR overvoltage protection behavior, SYNC-controlled synchronous/nonsynchronous mode switching, and thermal performance in HTSSOP PowerPAD packaging.
Technical Context
The TPS2834PWPR integrates independent high-side (floating bootstrap or ground-referenced) and low-side drivers with adaptive dead-time logic that monitors BOOTLO and DT terminals to prevent shoot-through during FET transitions. Its internal Schottky bootstrap diode enables efficient gate charging without external diode placement.
Control architecture includes TTL-compatible ENABLE (global driver disable), SYNC (low-side enable/disable for synchronous/nonsynchronous operation), and CROWBAR (forced low-side turn-on for OVP clamping). Input IN is noninverting-distinguishing it from the inverting TPS2835 variant-and all digital inputs meet standard TTL voltage thresholds (VIH ≥ 2 V, VIL ≤ 1 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 15 V - supports wide-input industrial and telecom DC/DC supplies without external regulation |
| Peak Output Current | 2.4 A (high-side source/sink at VBOOT–VBOOTLO = 12 V) - drives low-rDS(on) N-channel MOSFETs up to ~3 A continuous load |
| Rise/Fall Time | ≤50 ns (high-side), ≤30 ns (low-side) with 3.3-nF load - enables >1-MHz switching in compact POL designs |
| Operating Temperature | −40°C to 125°C virtual junction - validated for under-hood automotive and base station power stages |
| Dead-Time Control | DT terminal monitors FET junction voltage - eliminates need for fixed external delay networks and prevents shoot-through dynamically |
| CROWBAR Function | Active-low override turns on low-side FET regardless of IN/SYNC - provides hardware-level OVP response <100 ns after fault detection |
| Quiescent Supply Current | 3 mA typical at VCC = 12 V - minimizes no-load power loss in always-on auxiliary rails |
Pinout & Package
TPS2834PWPR is housed in a thermally enhanced 14-pin HTSSOP PowerPAD (PWP) package with exposed thermal pad for PCB heat sinking. Pin 1 is marked by a beveled corner; the PowerPAD must be soldered to a dedicated copper pour connected to PGND for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ENABLE (Pin 1) | Digital input | Global enable: pulls both drivers low when logic low; TTL-compatible threshold (VIL ≤ 1 V, VIH ≥ 2 V) |
| IN (Pin 2) | Noninverting input | Drives high-side and low-side outputs in phase; distinguishes TPS2834 from inverting TPS2835 |
| CROWBAR (Pin 3) | Hardware OVP override | Forces low-side FET ON and high-side OFF independently - used with external OVP comparator for fast fault response |
| NC (Pins 4, 9, 13) | No internal connection | Unbonded die pads; must remain unconnected or grounded per layout guidelines |
| SYNC (Pin 5) | Synchronous mode control | Low disables low-side driver (nonsynchronous buck); high enables synchronous rectification |
| DT (Pin 6) | Dead-time sensing input | Connected to FET drain node; enables adaptive timing to eliminate shoot-through without fixed delays |
| PGND (Pin 7) | Power ground return | High-current return path for driver outputs; must be low-inductance connection to FET source nodes |
| VCC (Pin 8) | Supply input | 4.5–15 V input; requires local 1-µF ceramic bypass capacitor to PGND |
| BOOT (Pin 14) | Bootstrap voltage supply | Connects to bootstrap capacitor (0.1–1 µF) between BOOT and BOOTLO to generate floating high-side gate drive |
| BOOTLO (Pin 11) | Bootstrap return / FET junction | Connects to high-side/low-side FET source/drain node; serves as reference for bootstrap capacitor and DT input |
| HIGHDR (Pin 12) | High-side gate driver output | Delivers 2.4-A peak current to high-side N-MOSFET gate; rated for 30-V max BOOT-to-PGND |
| LOWDR (Pin 10) | Low-side gate driver output | Delivers 3.5-A peak sink current at 12 V; designed for direct drive of low-rDS(on) N-MOSFETs |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Dead-Time Control | Monitors BOOTLO/DT node voltage to dynamically adjust turn-on timing - eliminates shoot-through without fixed RC delays or layout-sensitive compensation |
| Integrated Schottky Bootstrap Diode | Reduces external component count and improves charge efficiency - enables faster bootstrap capacitor recharge versus discrete diode solutions |
| CROWBAR Overvoltage Protection | Hardware-level override circuit forces low-side conduction within nanoseconds - protects downstream loads during high-side FET short failures |
| TTL-Compatible Digital Inputs | All control pins (ENABLE, SYNC, CROWBAR, IN) accept standard TTL logic levels - simplifies interface with PWM controllers and microcontrollers |
| Thermally Enhanced PWP Package | HTSSOP PowerPAD with 2.07 °C/W junction-to-case thermal resistance - supports >2 W dissipation at 70°C ambient with proper PCB copper area |
Applications
| Server VRM | Telecom POL |
|---|---|
Use Scenario: 12-V input to 1.2-V/100-A CPU core supply in data center servers. IC Role / Device Role / Timing Role: Dual gate driver controlling parallel high-side/low-side N-MOSFETs in multiphase synchronous buck; provides adaptive dead-time and fast 50-ns edge rates for >500-kHz operation. Use Value: Enables >94% efficiency at full load while maintaining tight voltage regulation under dynamic load transients via precise gate timing control. | Use Scenario: 48-V intermediate bus to 3.3-V/3-A point-of-load converter in 5G base station RF power amplifiers. IC Role / Device Role / Timing Role: High-side/low-side driver for SiC or low-Qg silicon MOSFETs; CROWBAR function safeguards sensitive RF ICs during overvoltage events. Use Value: Hardware OVP response time <100 ns prevents latch-up or damage to downstream GaN drivers during high-side short faults. |
| Industrial PLC Power | Automotive ADAS ECU |
Use Scenario: 24-V input to isolated 5-V/2-A auxiliary rail powering I/O modules and communication interfaces. IC Role / Device Role / Timing Role: Noninverting driver operating in nonsynchronous mode (SYNC = low) with ENABLE-controlled soft-start sequencing. Use Value: Eliminates external freewheeling diode and reduces BOM cost while maintaining robust start-up behavior across wide temperature range. | Use Scenario: 12-V battery input to 1.8-V/1.5-A core supply for radar processor in automotive ADAS domain controller. IC Role / Device Role / Timing Role: High-reliability gate driver supporting −40°C to 125°C operation; uses internal Schottky bootstrap diode to reduce thermal stress on external components. Use Value: Junction temperature rating and PowerPAD thermal design ensure stable operation during extended high-ambient conditions in engine bay proximity. |
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 (7.5-mm width, 1.75-mm height) - no exposed thermal pad, higher θJA (7.49 °C/W) | Limited to lower-power (<1.5 A) or forced-air-cooled applications due to reduced thermal capability | Select when board space allows larger SOIC footprint and thermal budget permits higher junction temperature rise |
| TPS2836D | TTL-input variant without ENABLE, SYNC, or CROWBAR functions - simplified control set, same SOIC-14 package | Used in cost-sensitive, fixed-function buck converters where OVP and synchronous mode control are handled externally | Select when system-level control logic already manages enable, sync, and protection - reduces pin count and firmware complexity |
Compared with TPS2834D and TPS2836D, the TPS2834PWPR delivers superior thermal performance via PowerPAD and retains full feature set (ENABLE/SYNC/CROWBAR), making it optimal for high-density, high-reliability synchronous-buck designs where board area and thermal headroom are constrained.
Availability
TPS2834PWPR is available at Aetrix Electronics and suitable for server VRMs, telecom POL converters, and industrial PLC power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant HTSSOP packaging.
Supply support for TPS2834PWPR 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-performance power conversion ICs.
The TPS283x family was engineered specifically for synchronous-buck gate driving in high-current, high-efficiency DC/DC applications - emphasizing adaptive dead-time, integrated protection, and thermal robustness in compact packages.
FAQ
What is the maximum allowable voltage between BOOT and PGND for the TPS2834PWPR?
The absolute maximum voltage between BOOT and PGND is 30 V, as specified in the Absolute Maximum Ratings table. This limit ensures safe operation of the internal high-side driver and bootstrap circuitry. Exceeding 30 V risks permanent damage to the TPS2834PWPR, even if other supply conditions remain within recommended ranges.
Does the TPS2834PWPR require an external bootstrap diode?
No, the TPS2834PWPR includes an internal Schottky bootstrap diode, eliminating the need for an external diode in most designs. This reduces component count, PCB area, and potential failure points while improving bootstrap capacitor recharge efficiency compared to discrete diode implementations.
How does the CROWBAR function protect against high-side FET failure in the TPS2834PWPR?
When the CROWBAR input is driven low, the TPS2834PWPR immediately forces the LOWDR output high and HIGHDR output low - overriding IN and SYNC signals. This clamps the output voltage by turning on the low-side FET, diverting fault current away from downstream loads and preventing overvoltage damage during high-side short-circuit events.
Can the TPS2834PWPR operate with a 3.3-V logic supply?
No - the TPS2834PWPR requires a minimum VCC of 4.5 V and has TTL-compatible inputs (VIL ≤ 1 V, VIH ≥ 2 V), but its internal drivers and bootstrap circuitry are not rated for reliable operation below 4.5 V. Using 3.3 V violates the recommended operating conditions and may result in insufficient gate drive voltage or undefined dead-time behavior.
What is the purpose of the DT pin on the TPS2834PWPR?
The DT (dead-time) pin connects to the drain node of the high-side and low-side power FETs. It enables adaptive dead-time control by monitoring the voltage at that node, ensuring the high-side driver does not turn on until the low-side FET is fully off and vice versa - preventing shoot-through current without fixed timing components.
TPS2834PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
TPS2834PWPR FAQ
1.How can I place an order for TPS2834PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2834PWPR 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 TPS2834PWPR reliable?
The price and inventory of TPS2834PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2834PWPR is usually 5 days.
3.What payment methods are accepted for TPS2834PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2834PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2834PWPR?
TPS2834PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2834PWPR 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 TPS2834PWPR?
For technical support, including TPS2834PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2834PWPR requirements.
6.How does Aetrix verify that TPS2834PWPR is sourced from the original manufacturer or authorized distributors?
All TPS2834PWPR 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 TPS2834PWPR meets industry standards.
7.What is the process for return or replacement of TPS2834PWPR?
All TPS2834PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2834PWPR, 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 TPS2834PWPR part is unused and in its original packaging.
Return procedure for TPS2834PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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