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Texas Instruments TPS2837DR
- Part No.:
- TPS2837DR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2837DR.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,129
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Product details
Overview
TPS2837DR from Texas Instruments is an inverting-input high-side/low-side dual MOSFET driver IC 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-ideal for 3.3-V/3-A high-efficiency DC-DC converters using controllers like TL5001A.
For engineers reviewing the TPS2837DR datasheet, TPS2837DR pinout, TPS2837DR application, or TPS2837DR equivalent, this page delivers verified technical context, SOIC-8 package mapping, TTL-compatible input thresholds, bootstrap diode integration, and real-world switching performance data under −40°C to 125°C junction temperature operation.
Technical Context
The TPS2837DR implements a bipolar/MOSFET parallel-output architecture enabling 2.4-A peak sink/source capability per driver, with internal Schottky bootstrap diode supporting floating high-side operation up to 30 V BOOT-to-PGND. Its adaptive dead-time circuit monitors the DT terminal connected to the power FET junction to enforce non-overlapping gate drive timing.
As an inverting-input variant of the TPS283x family, the TPS2837DR accepts TTL-level logic on IN (VIH ≥ 2 V, VIL ≤ 1 V) and operates across 4.5–15-V VCC, maintaining <3 mA quiescent supply current at 12 V while driving capacitive loads up to 3.3 nF with sub-50-ns transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 15 V - supports wide-input buck converters including 5-V and 12-V rail systems without external regulation. |
| Peak Output Current | 2.4 A typical (high-side), 3.5 A max (low-side) - drives low-rDS(on) N-channel MOSFETs such as Si4410 in high-current power stages. |
| Rise/Fall Time | ≤50 ns (HIGHDR), ≤30 ns (LOWDR) with 3.3-nF load - enables >1-MHz switching in compact, high-density power supplies. |
| Dead-Time Control | Adaptive DT input tied to FET junction - eliminates shoot-through without fixed delay tuning; ensures robust operation across load and temperature. |
| Input Compatibility | TTL-compatible IN and DT terminals (VIH ≥ 2 V, VIL ≤ 1 V) - interfaces directly with PWM controllers like TL5001A without level-shifting. |
| Operating Temperature | −40°C to 125°C virtual junction range - qualified for industrial and automotive under-hood DC-DC applications. |
| Bootstrap Diode | Integrated Schottky diode - reduces external component count and improves bootstrap efficiency vs discrete diode solutions. |
Pinout & Package
TPS2837DR is housed in an 8-pin SOIC (D) package per JEDEC MS-012, with 1.27-mm pitch, 3.91-mm width, and tape-and-reel packaging (2500 units/reel). Pin 1 orientation follows Q1 quadrant assignment per TI tape specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Digital input | Inverting TTL-compatible control signal - active-low logic toggles LOWDR high and HIGHDR low simultaneously. |
| PGND (Pin 2) | Power ground | Low-impedance return path for high-current driver outputs and bootstrap capacitor discharge current. |
| DT (Pin 3) | Dead-time sense | Connects to high-side/low-side FET junction - enables adaptive nonoverlap timing to block shoot-through during transitions. |
| VCC (Pin 4) | Supply input | 4.5–15-V main supply; requires local 1-µF ceramic bypass to PGND for stable gate drive under transient load. |
| LOWDR (Pin 5) | Low-side output | Drives N-channel MOSFET source - sinks up to 3.5 A, sources up to 3 A, with <30-ns transitions into 3.3-nF load. |
| BOOTLO (Pin 6) | Bootstrap return | Connects to FET junction - provides reference for floating high-side driver and forms bootstrap capacitor node with BOOT. |
| HIGHDR (Pin 7) | High-side output | Drives N-channel MOSFET gate - sources/sinks 2.4 A typical, supports bootstrap operation up to 30 V BOOT-to-PGND. |
| BOOT (Pin 8) | Bootstrap supply | Accepts charge from internal Schottky diode - connects via 0.1–1 µF ceramic capacitor to BOOTLO for high-side gate bias. |
Key Features
| Feature | Design Value |
|---|---|
| Inverting input logic | Matches inverted PWM outputs from controllers like TL5001A - eliminates need for external inverters in synchronous-buck designs. |
| Adaptive dead-time control | Hardware-enforced nonoverlap via DT pin sensing - prevents shoot-through without software calibration or fixed-delay components. |
| Integrated Schottky bootstrap diode | Reduces BOM count and layout area - avoids discrete diode forward voltage drop and thermal derating concerns. |
| 2.4-A high-side peak drive | Sustains fast turn-on of high-capacitance MOSFETs (e.g., Si4410) - maintains gate voltage slew rate even under heavy Miller charge. |
| TTL-compatible inputs | Direct interface with legacy and modern PWM ICs - no level shifters required for VIH ≥ 2 V / VIL ≤ 1 V logic families. |
Applications
| Server VRM Power Stage | Industrial 3.3-V Point-of-Load |
|---|---|
Use Scenario: 100-kHz synchronous-buck converter supplying 3.3 V/3 A to FPGA core logic in telecom base station line cards. IC Role / Device Role / Timing Role: Dual gate driver translating TL5001A PWM signals into high-current, nonoverlapping gate drives for Si4410 MOSFET pair. Use Value: Adaptive DT control ensures >93% efficiency at full load while eliminating external dead-time resistors and associated layout sensitivity. |
Use Scenario: Compact 5-V input to 3.3-V output DC-DC module powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: High-side/low-side driver enabling N-channel-only FET topology - reduces cost and conduction loss vs P-channel high-side solutions. Use Value: Integrated Schottky bootstrap diode and 2.4-A drive strength allow single-chip replacement of discrete driver + diode + RC networks. |
| Automotive Body Control Module | Networking Equipment DC-DC |
Use Scenario: 12-V battery-fed buck regulator generating 3.3 V for CAN transceiver and microcontroller in under-hood ECU. IC Role / Device Role / Timing Role: Robust gate driver operating across −40°C to 125°C junction range - withstands thermal cycling and load dump transients. Use Value: 15-V max VCC rating and 30-V BOOT-to-PGND tolerance support direct connection to unregulated automotive rails without pre-regulation. |
Use Scenario: High-density 48-V to 3.3-V intermediate bus converter in 1U network switch power system. IC Role / Device Role / Timing Role: Fast-switching driver enabling >500-kHz operation with minimal gate drive loss - critical for space-constrained board layouts. Use Value: 50-ns rise time and <3 mA quiescent current reduce switching losses and standby power - improving overall system energy efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-side/low-side MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2835DR | Inverting TTL input, same SOIC-8 package and pinout, but lacks adaptive DT control - uses fixed internal dead-time. | Requires careful FET selection to avoid shoot-through at extreme duty cycles; less tolerant of layout parasitics than TPS2837DR. | Choose when cost sensitivity outweighs need for adaptive shoot-through protection in well-characterized, fixed-frequency designs. |
| LM5109BMAX | Noninverting input, higher 1-A continuous drive (vs 2.4-A peak), integrated high-voltage level shifter (60-V bootstrap), no internal Schottky diode. | Supports higher input voltages (up to 60 V) but demands external bootstrap diode and has slower propagation delays (>100 ns). | Prefer for >15-V input buck stages where TPS2837DR's 15-V VCC limit is insufficient, accepting added BOM and layout complexity. |
Compared with TPS2835DR and LM5109BMAX, the TPS2837DR uniquely combines adaptive dead-time enforcement, integrated Schottky bootstrap diode, and 2.4-A peak drive in a TTL-inverting SOIC-8 package - making it optimal for cost-sensitive, high-efficiency 5–12-V synchronous buck converters requiring minimal external components and robust shoot-through immunity.
Availability
TPS2837DR is available at Aetrix Electronics and suitable for server VRM power stages, industrial point-of-load converters, automotive body control modules, and networking equipment DC-DC designs requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TPS2837DR 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 TPS283x family was designed specifically for synchronous-buck topologies using external PWM controllers - targeting high-efficiency, low-component-count DC-DC solutions for computing, industrial, and automotive applications.
FAQ
What is the function of the DT pin on the TPS2837DR?
The DT (dead-time) pin on the TPS2837DR is a dedicated input that connects directly to the drain-source junction of the high-side and low-side power MOSFETs. It enables hardware-based adaptive dead-time control by sensing 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-thereby preventing shoot-through current. This feature is intrinsic to the TPS2837DR's internal logic and requires no external components or configuration.
Does the TPS2837DR include an internal bootstrap diode?
Yes, the TPS2837DR integrates a Schottky bootstrap diode between the VCC and BOOT pins. This eliminates the need for an external diode in bootstrap-based high-side drive configurations, reducing bill-of-materials count, PCB area, and potential failure points. The diode supports efficient charging of the bootstrap capacitor during low-side conduction, enabling reliable high-side gate drive up to 30 V BOOT-to-PGND.
What is the maximum allowable voltage between BOOT and PGND for the TPS2837DR?
The absolute maximum voltage between BOOT and PGND for the TPS2837DR is 30 V, as specified in the Absolute Maximum Ratings table. This rating allows the device to operate safely in 12-V and 24-V input buck converters where the high-side FET's source swings near the input rail. Exceeding 30 V risks permanent damage; design margins should maintain BOOT-to-PGND ≤28 V under all operating conditions, including transients.
How does the inverting input of the TPS2837DR affect its interface with PWM controllers?
The TPS2837DR's inverting input means that a logic-high signal on the IN pin results in LOWDR going low and HIGHDR going high-effectively reversing the polarity of the incoming PWM waveform. This matches controllers like the TL5001A that output inverted gate drive signals, allowing direct connection without external inverters. The TPS2837DR thus simplifies timing alignment and reduces propagation delay compared to adding discrete inversion logic.
What package type and moisture sensitivity level (MSL) does the TPS2837DR use?
The TPS2837DR is supplied in an 8-pin SOIC (D) package per JEDEC MS-012, with MSL rating Level-1 at 260°C peak reflow. This indicates unlimited floor life under standard humidity conditions and permits standard SMT assembly without baking. The package features NiPdAu lead finish, RoHS compliance, and is shipped in 2500-unit tape-and-reel format with Q1 pin-1 quadrant orientation.
TPS2837DR 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:
- 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:
- 8-SOIC
TPS2837DR FAQ
1.How can I place an order for TPS2837DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2837DR 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 TPS2837DR reliable?
The price and inventory of TPS2837DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2837DR is usually 5 days.
3.What payment methods are accepted for TPS2837DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2837DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2837DR?
TPS2837DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2837DR 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 TPS2837DR?
For technical support, including TPS2837DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2837DR requirements.
6.How does Aetrix verify that TPS2837DR is sourced from the original manufacturer or authorized distributors?
All TPS2837DR 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 TPS2837DR meets industry standards.
7.What is the process for return or replacement of TPS2837DR?
All TPS2837DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2837DR, 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 TPS2837DR part is unused and in its original packaging.
Return procedure for TPS2837DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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