My Inquiry
My Account
Texas Instruments TPS2835D
- Part No.:
- TPS2835D
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2835D.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,021
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS2835D from Texas Instruments is a dual-channel, inverting-input MOSFET driver IC designed for synchronous-buck power stages. It delivers 2.4-A typical peak output current per channel, supports 4.5-V to 15-V supply voltage, features adaptive dead-time control and internal Schottky bootstrap diode, and operates across −40°C to 125°C junction temperature - ideal for high-current DC/DC converters in telecom and industrial power supplies.
For engineers reviewing the TPS2835D datasheet, TPS2835D pinout, TPS2835D application, or TPS2835D equivalent, key selection criteria include its inverting input logic, CROWBAR overvoltage protection function, TTL-compatible digital controls (ENABLE/SYNC/CROWBAR), and SOIC-14 package with thermal pad compatibility for high-power density designs.
Technical Context
The TPS2835D integrates independent high-side and low-side drivers with adaptive dead-time circuitry that monitors the DT terminal connected to the power FET junction, preventing shoot-through by enforcing non-overlapping gate drive timing. Its inverting input architecture means the HIGHDR output is active-low relative to IN, while LOWDR is active-high - critical for proper phase alignment in buck topologies using external PWM controllers.
It implements three dedicated control functions: ENABLE disables both outputs when low; SYNC configures synchronous (high) or nonsynchronous (low) operation by enabling/disabling the low-side driver; and CROWBAR overrides normal logic to force LOWDR high during overvoltage events, clamping the output via the low-side FET regardless of IN or ENABLE state.
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 rails without external regulation. |
| Peak Output Current | 2.4 A typical (high-side), 3.5 A typical (low-side) - drives low-rDS(on) N-channel MOSFETs in high-current (>3 A) buck stages. |
| Rise/Fall Time | ≤50 ns (HIGHDR), ≤30 ns (LOWDR) with 3.3-nF load - enables >1 MHz switching in compact, high-efficiency designs. |
| Operating Temperature | −40°C to 125°C virtual junction - validated for under-hood automotive auxiliary supplies and industrial motor control power stages. |
| Input Logic Type | Inverting - IN high disables HIGHDR and enables LOWDR, matching standard buck controller feedback polarity requirements. |
| Bootstrap Capability | Floating high-side driver with internal Schottky diode - eliminates external bootstrap diode, reducing BOM count and layout area. |
| Protection Functions | CROWBAR OVP, adaptive dead-time, and ENABLE shutdown - provides hardware-level fault response without MCU intervention. |
Pinout & Package
TPS2835D is housed in a 14-pin SOIC (D) package with exposed thermal pad (PowerPAD™ compatible layout). Pin 1 is marked by a beveled corner; pins are spaced at 1.27 mm pitch, body dimensions 8.65 mm × 3.9 mm × 1.75 mm max height. Thermal pad must be soldered to PCB ground plane for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ENABLE | Digital enable input | Active-high TTL-compatible signal; pulls both drivers low when logic low - used for system-level power sequencing and fault shutdown. |
| 2 IN | Inverting input control | Drives HIGHDR low and LOWDR high when logic high - matches inverted PWM output from TL5001A or similar controllers. |
| 3 CROWBAR | OVP override input | Active-low TTL signal; forces LOWDR high and HIGHDR low independent of IN/ENABLE - protects against high-side FET short-circuit failure. |
| 4,9,13 NC | No internal connection | Unbonded pins; must remain unconnected or grounded per layout guidelines to avoid noise coupling. |
| 5 SYNC | Synchronous mode select | High enables low-side synchronous rectification; low disables LOWDR for diode-emulated operation - supports flexible topology reconfiguration. |
| 6 DT | Dead-time sensing node | Connected to high/low FET junction; dynamically adjusts turn-on delays to eliminate shoot-through - requires low-inductance routing. |
| 7 PGND | Power ground return | High-current return path for driver outputs; must be tied directly to power FET source nodes and bulk capacitor negative terminals. |
| 8 VCC | Driver supply input | 4.5–15 V input; requires local 1-µF ceramic bypass capacitor between VCC and PGND to stabilize gate drive transients. |
| 10 LOWDR | Low-side gate driver output | Push-pull output capable of 3.5-A sink/source - directly drives N-channel MOSFET gate with minimal external components. |
| 11 BOOTLO | Bootstrap return node | Connects to high/low FET junction; forms return path for bootstrap capacitor charge/discharge - critical for high-side floating bias generation. |
| 12 HIGHDR | High-side gate driver output | Bootstrapped push-pull output; delivers 2.4-A peak into high-side FET gate - enables efficient N-channel high-side switching. |
| 14 BOOT | Bootstrap supply terminal | Connects to bootstrap capacitor anode; internal Schottky diode charges capacitor during low-side conduction - eliminates external diode. |
Key Features
| Feature | Design Value |
|---|---|
| Inverting Input Logic | Matches standard buck controller output polarity, eliminating need for external inverter logic in TL5001A-based designs. |
| Adaptive Dead-Time Control | Monitors DT node voltage to dynamically adjust nonoverlap timing - ensures shoot-through immunity across line/load/temperature variations. |
| Integrated Schottky Bootstrap Diode | Reduces component count and board space vs discrete bootstrap solutions; improves charge efficiency and thermal performance. |
| CROWBAR Overvoltage Protection | Hardware-level clamp activation that overrides all control inputs - provides fail-safe response to high-side FET short without software delay. |
| TTL-Compatible Digital Inputs | ENABLE, SYNC, and CROWBAR accept standard 0–5 V logic levels - simplifies interface with microcontrollers, supervisors, and analog controllers. |
Applications
| Telecom Point-of-Load Converter | Industrial Motor Drive Auxiliary Supply |
|---|---|
Use Scenario: 48-V telecom rack supplying isolated 3.3-V/3-A loads to FPGA and ASIC cores. IC Role / Device Role / Timing Role: High-side/low-side gate driver for synchronous buck stage controlled by TL5001A PWM; manages 100-kHz switching with adaptive dead-time. Use Value: 94% efficiency at 1-A load enables compact thermal design; CROWBAR prevents bus overvoltage during hot-swap transients. | Use Scenario: 24-V industrial PLC powering 5-V I/O modules and 3.3-V communication interfaces. IC Role / Device Role / Timing Role: Dual-channel MOSFET driver enabling high-current buck conversion with ENABLE-controlled power sequencing during startup/shutdown. Use Value: −40°C to 125°C operation ensures reliability in uncooled enclosures; SOIC-14 PowerPAD layout supports >2 W continuous dissipation. |
| Automotive ADAS Camera Power Module | Server VRM Secondary Stage |
Use Scenario: 12-V vehicle battery powering 1.8-V image sensor rail with strict EMI limits. IC Role / Device Role / Timing Role: Inverting-input driver synchronizing with external controller; BOOTLO/DT routing minimizes parasitic inductance for clean switching. Use Value: 30-ns low-side fall time reduces dV/dt noise; internal bootstrap diode lowers component count for space-constrained camera housings. | Use Scenario: 12-V server motherboard delivering 0.9-V/25-A core voltage with fast transient response. IC Role / Device Role / Timing Role: Gate driver in multiphase buck converter; SYNC pin enables phase shedding during light-load conditions. Use Value: 2.4-A high-side drive sustains gate charge for paralleled MOSFETs; thermal pad enhances heat transfer to heatsink-equipped PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2835PWP | Same functionality and pinout, but in thermally enhanced HTSSOP-14 PowerPAD package with 2.07 °C/W junction-to-case thermal resistance. | Better thermal performance for >2 W continuous dissipation; requires different footprint and stencil design. | Select TPS2835PWP when board-level thermal management is constrained and >1.5 A RMS load current is expected. |
| TPS2831 | CMOS-input version with identical inverting logic, ENABLE/SYNC/CROWBAR, but lacks internal Schottky bootstrap diode and has lower 2-A peak drive. | Requires external bootstrap diode; limited to lower-current applications (<2 A) or higher-VCC designs where external diode loss is acceptable. | Choose TPS2831 only if CMOS input thresholds are required or when legacy board reuse mandates identical logic behavior without bootstrap integration. |
Compared with TPS2835PWP and TPS2831, the TPS2835D offers optimal balance of integrated bootstrap functionality, SOIC manufacturability, and thermal capability for mid-power (1–3 A) buck converters - making it preferred for cost-sensitive, high-volume telecom and industrial designs where layout simplicity and supply chain maturity matter.
Availability
TPS2835D is available at Aetrix Electronics and suitable for telecom point-of-load converters, industrial motor drive auxiliary supplies, and automotive ADAS camera power modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS2835D 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-reliability power conversion ICs.
The TPS2835D belongs to TI's synchronous MOSFET driver product line, engineered specifically for high-efficiency, high-current DC/DC buck regulators using external PWM controllers - targeting applications demanding robust gate drive, hardware fault protection, and thermal resilience.
FAQ
What is the input logic polarity of the TPS2835D?
The TPS2835D features an inverting input: when the IN pin is logic high, the HIGHDR output goes low and the LOWDR output goes high. This matches the output polarity of common PWM controllers like the TL5001A, eliminating the need for external inverters in standard synchronous-buck configurations. The TPS2835D datasheet confirms this behavior in both functional description and truth tables.
Does the TPS2835D include an internal bootstrap diode?
Yes, the TPS2835D integrates a Schottky bootstrap diode between VCC and BOOT terminals. This eliminates the need for an external diode in bootstrap circuits, reducing component count, PCB area, and potential failure points. The internal diode is explicitly documented in the "detailed description" and "terminal functions" sections of the TPS2835D datasheet.
How does the CROWBAR function protect the system in the TPS2835D?
The CROWBAR function in the TPS2835D activates when the CROWBAR pin is driven low, forcing LOWDR high and HIGHDR low regardless of IN or ENABLE status. This turns on the low-side FET as a clamp, shunting excess energy and limiting output overvoltage during high-side FET short-circuit failures. The TPS2835D datasheet specifies this behavior as a hardware-level OVP mechanism with no propagation delay.
What package options are available for the TPS2835D?
The TPS2835D is offered exclusively in the 14-pin SOIC (D) package with PowerPAD-compatible thermal pad. It is distinct from the TPS2835PWP, which uses the HTSSOP-14 (PWP) package. Both share identical pinout and functionality, but the TPS2835D's SOIC form factor supports standard pick-and-place and reflow processes with Level-1 MSL rating.
Can the TPS2835D operate in nonsynchronous mode?
Yes, the TPS2835D supports nonsynchronous operation via the SYNC pin: when SYNC is logic low, the low-side driver (LOWDR) is disabled, allowing the external catch diode to conduct during the off-time. This mode is useful for light-load efficiency optimization or compatibility with legacy diode-based designs - a feature confirmed in the TPS2835D functional block diagram and application information.
TPS2835D 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:
- 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
TPS2835D FAQ
1.How can I place an order for TPS2835D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2835D 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 TPS2835D reliable?
The price and inventory of TPS2835D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2835D is usually 5 days.
3.What payment methods are accepted for TPS2835D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2835D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2835D?
TPS2835D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2835D 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 TPS2835D?
For technical support, including TPS2835D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2835D requirements.
6.How does Aetrix verify that TPS2835D is sourced from the original manufacturer or authorized distributors?
All TPS2835D 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 TPS2835D meets industry standards.
7.What is the process for return or replacement of TPS2835D?
All TPS2835D units undergo pre-shipment inspection (PSI). If there is an issue with TPS2835D, 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 TPS2835D part is unused and in its original packaging.
Return procedure for TPS2835D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS2835D 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…
