My Inquiry
My Account
Texas Instruments TPS2834D
- Part No.:
- TPS2834D
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2834D.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,340
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS2834D from Texas Instruments is a noninverting dual MOSFET driver IC for synchronous-buck power stages, featuring adaptive dead-time control, TTL-compatible inputs, internal Schottky bootstrap diode, CROWBAR overvoltage protection, and 2.4-A typical peak output current. It operates from 4.5 V to 15 V supply voltage and supports −40°C to 125°C junction temperature range in SOIC-14 package.
For engineers reviewing the TPS2834D datasheet, TPS2834D pinout, TPS2834D application, or TPS2834D equivalent, this device is selected for high-efficiency, high-current DC/DC converter designs where shoot-through prevention, fast gate drive (≤50 ns rise/fall), and fault-tolerant operation are critical - especially when interfacing with external PWM controllers like TL5001A.
Technical Context
The TPS2834D 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 prevent simultaneous conduction. Its noninverting input architecture directly accepts TTL-level control signals without inversion, distinguishing it from the inverting TPS2835D.
It implements three key control functions: ENABLE (global driver disable), SYNC (synchronous/nonsynchronous mode selection), and CROWBAR (low-side override for OVP). The internal Schottky bootstrap diode enables efficient floating high-side drive, while BOOTLO serves as the common source node for both power FETs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 4.5 V to 15 V - compatible with standard 5 V and 12 V intermediate bus rails in point-of-load converters. |
| Peak output current | 2.4 A typical (high-side source/sink at VBOOT–VBOOTLO = 12 V) - drives low-rDS(on) N-channel MOSFETs in high-current buck stages. |
| Rise/fall time | ≤50 ns (high-side), ≤30 ns (low-side) with 3.3-nF load - ensures fast switching transitions and reduced switching losses. |
| Operating temperature | −40°C to 125°C virtual junction range - validated for industrial and automotive under-hood thermal environments. |
| Input compatibility | TTL-compatible IN, ENABLE, SYNC, CROWBAR - interfaces directly with legacy and modern PWM controllers without level-shifting. |
| Dead-time control | Adaptive DT input tied to power FET drain-source node - dynamically prevents shoot-through without fixed timing delays. |
| CROWBAR function | Active-low override forcing low-side FET on during high-side fault - clamps output voltage to protect downstream loads. |
Pinout & Package
TPS2834D is packaged in a 14-pin SOIC (D package), 3.9 mm × 8.65 mm body, 1.75 mm max height, with gull-wing leads and RoHS-compliant NiPdAu finish. Thermal pad is not present - power dissipation relies on PCB copper area and lead-frame conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: ENABLE | Digital enable input | Drives both high-side and low-side outputs low when asserted low - provides system-level shutdown capability. |
| 2: IN | Noninverting control input | Direct TTL-level gate command: HIGH → high-side ON / low-side ON (synchronous); LOW → both OFF (when ENABLE high). |
| 3: CROWBAR | OVP override input | Active-low signal that forces low-side driver ON and disables high-side driver - protects against high-side short-circuit faults. |
| 4, 9, 13: NC | No internal connection | Unbonded pins - must be left floating or grounded per layout best practices; no electrical function. |
| 5: SYNC | Synchronous rectifier control | High = synchronous mode (low-side active); Low = nonsynchronous mode (low-side disabled, diode conduction only). |
| 6: DT | Dead-time sensing input | Connected to power FET junction; enables adaptive delay to prevent shoot-through during switching transitions. |
| 7: PGND | Power ground reference | Low-impedance return path for high-current gate drive paths - must be routed separately from signal ground. |
| 8: VCC | Driver supply input | Primary power rail for logic and output stages; requires local 1-µF ceramic bypass capacitor to PGND. |
| 10: LOWDR | Low-side gate driver output | Push-pull output driving low-side N-MOSFET gate; rated for 3.5-A sink/2.4-A source peak current. |
| 11: BOOTLO | Bootstrap return node | Common source connection point for high-side and low-side power FETs - forms return path for bootstrap capacitor. |
| 12: HIGHDR | High-side gate driver output | Bootstrap-referenced push-pull output; delivers up to 2.4-A peak current into high-side N-MOSFET gate. |
| 14: BOOT | Bootstrap supply terminal | Connects to bootstrap capacitor top; develops floating supply for high-side driver - rated up to 30 V relative to PGND. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive dead-time control | Eliminates need for external timing components by sensing power FET junction voltage (DT pin) to dynamically adjust turn-on delays and prevent shoot-through. |
| Integrated Schottky bootstrap diode | Reduces external component count and improves bootstrap efficiency - eliminates discrete diode and associated PCB area in high-frequency designs. |
| CROWBAR overvoltage protection | Hardware-level fault response that overrides normal logic to clamp output via low-side FET activation - no software or controller involvement required. |
| TTL-compatible digital inputs | EN, IN, SYNC, and CROWBAR accept standard 0 V / 3.3 V or 5 V logic levels - simplifies interface with microcontrollers, ASICs, and PWM ICs. |
| Thermally robust SOIC-14 package | Rated for 125°C junction temperature with 7.49 mW/°C derating above 25°C ambient - supports high-power density board layouts without forced air. |
Applications
| Server VRM Power Stage | Industrial PLC Power Supply |
|---|---|
|
Use Scenario: 12 V input to 1.2 V/60 A CPU core supply using multiphase synchronous buck topology. IC Role / Device Role / Timing Role: Dual gate driver delivering precise, shoot-through-free gate timing to parallel high-side/low-side MOSFETs per phase. Use Value: Adaptive DT control maintains >94% efficiency across load transients; 2.4-A drive sustains <20 ns propagation delay at 500 kHz switching. |
Use Scenario: 24 V DC input to isolated 5 V/3 A auxiliary rail in programmable logic controller with extended temperature requirements. IC Role / Device Role / Timing Role: High-reliability gate driver enabling synchronous rectification in compact, fanless enclosure. Use Value: −40°C to 125°C operation ensures startup and continuous function in uncontrolled cabinet environments; CROWBAR protects against field-replaceable FET failure. |
| Automotive ADAS Camera Module | Telecom Point-of-Load Converter |
|
Use Scenario: 12 V vehicle battery to 3.3 V/2 A imaging sensor supply in rear-view camera with EMI-sensitive analog front-end. IC Role / Device Role / Timing Role: Low-noise, fast-switching driver minimizing switching node ringing and conducted EMI. Use Value: 50 ns max rise/fall times reduce dV/dt-induced coupling; SOIC package supports controlled impedance routing for clean gate waveforms. |
Use Scenario: 48 V telecom bus to 3.3 V/10 A FPGA core supply in base station radio unit requiring high efficiency and long-term reliability. IC Role / Device Role / Timing Role: Primary gate driver in high-current single-phase buck stage with external PWM controller. Use Value: Internal Schottky bootstrap diode reduces BOM count and improves thermal margin vs. discrete solutions; 3 mA quiescent current lowers standby loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2835D | Inverting input logic (IN polarity inverted vs. TPS2834D); otherwise identical pinout, specs, and features. | Requires inverted control signal from PWM controller - suitable when controller output polarity matches or can be configured. | Select TPS2835D only if system-level signal polarity favors inversion; otherwise TPS2834D avoids external inverters. |
| TPS2836D | Omits ENABLE, SYNC, and CROWBAR functions; retains noninverting input and same SOIC-14 package. | Lacks hardware-level fault protection and synchronous mode control - limited to simpler, cost-sensitive buck designs without OVP or mode flexibility. | Choose TPS2836D only when ENABLE/SYNC/CROWBAR are unused; TPS2834D provides full feature set with no pinout change. |
Compared with TPS2835D, TPS2834D offers direct signal compatibility with noninverting controllers; compared with TPS2836D, it adds critical safety and control features without increasing footprint or complexity - making it the optimal choice for robust, production-grade synchronous-buck implementations.
Availability
TPS2834D is available at Aetrix Electronics and suitable for server VRMs, industrial PLC power supplies, automotive ADAS modules, and telecom point-of-load converters requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for TPS2834D 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 designed specifically for synchronous-buck gate driving in high-current, high-efficiency DC/DC converters - targeting applications where shoot-through prevention, fast switching, and integrated protection are essential.
FAQ
What is the difference between TPS2834D and TPS2835D?
The TPS2834D features a noninverting input, meaning the HIGHDR and LOWDR outputs follow the logic state of the IN pin directly. In contrast, the TPS2835D has an inverting input - its outputs are logically inverted relative to IN. All other specifications, pinout, and features including ENABLE, SYNC, CROWBAR, and adaptive dead-time control are identical between TPS2834D and TPS2835D.
Does TPS2834D require an external bootstrap diode?
No, the TPS2834D includes an internal Schottky bootstrap diode connected between VCC and BOOT. This eliminates the need for an external diode in most designs, reducing component count and PCB area while improving bootstrap efficiency and reliability compared to discrete solutions.
How does the CROWBAR function protect the system in TPS2834D?
When the CROWBAR pin is driven low, the TPS2834D immediately turns ON the low-side driver (LOWDR) and disables the high-side driver (HIGHDR), regardless of IN, ENABLE, or SYNC states. This clamps the output node to PGND, limiting overvoltage caused by a shorted high-side MOSFET - protecting downstream loads and enabling safe fault recovery.
What is the maximum allowable voltage between BOOT and PGND for TPS2834D?
The absolute maximum voltage between BOOT and PGND for TPS2834D is 30 V. This rating defines the upper limit of the floating supply voltage available to the high-side driver. Exceeding this voltage risks permanent damage to the internal high-side driver circuitry.
Can TPS2834D operate in nonsynchronous mode?
Yes, the TPS2834D supports nonsynchronous operation via the SYNC pin: when SYNC is driven low, the low-side driver (LOWDR) is disabled, allowing external freewheeling diode conduction. When SYNC is high, the device operates in synchronous mode with active low-side FET rectification - selectable per system requirements.
TPS2834D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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-SOIC
TPS2834D FAQ
1.How can I place an order for TPS2834D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2834D 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 TPS2834D reliable?
The price and inventory of TPS2834D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2834D is usually 5 days.
3.What payment methods are accepted for TPS2834D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2834D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2834D?
TPS2834D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2834D 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 TPS2834D?
For technical support, including TPS2834D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2834D requirements.
6.How does Aetrix verify that TPS2834D is sourced from the original manufacturer or authorized distributors?
All TPS2834D 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 TPS2834D meets industry standards.
7.What is the process for return or replacement of TPS2834D?
All TPS2834D units undergo pre-shipment inspection (PSI). If there is an issue with TPS2834D, 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 TPS2834D part is unused and in its original packaging.
Return procedure for TPS2834D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS2834D Tags
-
ZXGD3009E6TA
Diodes Incorporated
-
1EDN7512BXTSA1
Infineon Technologies
-
UCC27517DBVR
Texas Instruments
-
MCP1416T-E/OT
Microchip Technology
-
MCP1402T-E/OT
Microchip Technology
-
MCP1415T-E/OT
Microchip Technology
-
MCP1401T-E/OT
Microchip Technology
-
IX4428NTR
Littelfuse Inc.
-
IRS2005STRPBF
Infineon Technologies
-
IRS2008STRPBF
Infineon Technologies
-
IX4310TTR
Littelfuse Inc.
-
2EDN7524RXTMA1
Infineon Technologies
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
