My Inquiry
My Account
Texas Instruments TPS2838PWP
- Part No.:
- TPS2838PWP
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS2838PWP.pdf
- Description:
- IC GATE DRVR HALF-BRIDG 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,042
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS2838PWP from Texas Instruments is a dual-channel noninverting N-channel MOSFET driver IC designed for synchronous-buck power supplies. It delivers 4-A peak source/sink current per channel, supports adjustable 4-V to 14-V gate drive voltage (VDRV), features adaptive dead-time control via DELAY pin, and integrates a Schottky bootstrap diode. It operates in single/multiphase DC/DC converters delivering up to 3-A continuous load at 3.3 V output.
For engineers reviewing the TPS2838PWP datasheet, TPS2838PWP pinout, TPS2838PWP application, or TPS2838PWP equivalent, key selection criteria include its 16-pin HTSSOP PowerPAD package with thermal pad, TTL-compatible IN/ENABLE/SYNC logic, BOOTLO/DT shoot-through protection, and adjustable VDRV regulation using external R1/R2 resistors - all critical for high-efficiency, high-current buck converter design.
Technical Context
The TPS2838PWP implements a dual-driver architecture with independent high-side (floating bootstrap) and low-side (ground-referenced) channels. Its integrated 150-mA adjustable regulator sets VDRV from 4 V to 14 V, enabling optimization for specific MOSFET threshold voltages and RDS(on). The device uses adaptive dead-time control: high-side turn-on is delayed until BOOTLO falls below threshold after low-side turn-off, while external capacitor on DELAY pin fine-tunes fixed dead-time.
It supports both synchronous and nonsynchronous operation via TTL-compatible SYNC pin, provides open-drain PWRRDY status for VCC/VDRV rail monitoring, and includes thermal shutdown (155–185°C), VCC UVLO (10.3 V start/7.5 V stop), and VDRV regulator UVLO (85% of 1.235 V reference). All digital inputs (IN, ENABLE, SYNC) are TTL-compatible with defined VIH/VIL thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 4 A source/sink per channel at VDRV = 14 V - drives low-RDS(on) N-MOSFETs with fast switching and minimal gate charge delay |
| VDRV Range | Adjustable 4 V to 14 V via ADJ pin and external resistor divider - matches gate drive requirements of diverse MOSFETs |
| Supply Voltage (VCC) | 10 V to 15 V - requires ≥2 V headroom above VDRV for regulator stability |
| Rise/Fall Time | ≤65 ns (high-side), ≤40 ns (low-side) at VDRV = 14 V, CL = 3.3 nF, TJ = 125°C - enables >500 kHz switching in compact buck designs |
| Propagation Delay | 80 ns (tPHL HIGHDR), 80 ns (tPLH LOWDR) at VDRV = 14 V, TJ = 125°C - ensures precise timing alignment between FETs |
| Dead-Time Control | Adjustable via DELAY pin capacitor (0.5–1.5 ns/pF); adaptive DT prevents shoot-through by monitoring BOOTLO voltage - eliminates need for external timing components |
| Thermal Package | 16-pin HTSSOP (PWP) with exposed thermal pad - achieves 2.07 °C/W junction-to-case resistance when soldered to PCB copper area |
Pinout & Package
TPS2838PWP is housed in a thermally enhanced 16-pin HTSSOP PowerPAD (PWP) package (5.1 mm × 6.6 mm), featuring an exposed leadframe thermal pad on the bottom for direct PCB soldering to improve heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ENABLE (Pin 1) | Global driver enable input | TTL-compatible active-high signal; pulls both outputs low when low - enables system-level power sequencing |
| IN (Pin 2) | Primary logic input | Noninverting control: high IN → high HIGHDR; synchronizes with PWM controller output |
| PWRRDY (Pin 3) | Open-drain power-good indicator | Asserts low when VCC ≥10.3 V AND VDRV stable - used to enable downstream controller after rail stabilization |
| DELAY (Pin 4) | Adjustable dead-time capacitor node | Connects to ground via capacitor to set fixed high-side turn-on delay - compensates for gate resistor-induced turn-off lag |
| SYNC (Pin 5) | Synchronous rectifier mode control | TTL-compatible: high = synchronous (LOWDR active), low = nonsynchronous (LOWDR forced off) - supports diode-emulation mode |
| ADJ (Pin 6) | VDRV regulator feedback | Connects to resistor divider (R1/R2) to set VDRV = 1.235 × (1 + R2/R1) - enables precise gate drive voltage tuning |
| DT (Pin 7) | Dead-time sensing input | Connected to phase node (Q1/Q2 junction); monitors BOOTLO voltage to enforce adaptive dead-time - prevents cross-conduction |
| AGND (Pin 8) | Analog ground reference | Separate ground for internal references and regulators - isolates noise-sensitive analog circuitry from power ground |
| BOOT (Pin 16) | Bootstrap capacitor top node | Connects to bootstrap capacitor (0.1–1 µF) between BOOT and BOOTLO - generates floating high-side gate drive voltage |
| HIGHDR (Pin 15) | High-side gate driver output | Drives gate of high-side N-MOSFET; rated for 30 V max BOOT-to-PGND - supports bootstrap or ground-referenced configuration |
| BOOTLO (Pin 14) | Bootstrap return / phase node | Connects to source of high-side FET and drain of low-side FET - serves as bootstrap reference and DT sense point |
| VCC (Pin 13) | Main supply input | 10–15 V input powering internal logic and regulator - requires ≥1 µF ceramic bypass to PGND |
| VDRV (Pin 12) | Regulated gate drive output | Stable 4–14 V output for both drivers; requires ≥1 µF ceramic bypass to PGND - decouples gate drive from main supply |
| LOWDR (Pin 11) | Low-side gate driver output | Drives gate of low-side N-MOSFET; 4-A peak rating, 40-ns rise/fall at 14 V - optimized for fast, low-loss switching |
| PGND (Pin 9) | Power ground return | High-current return path for driver outputs and VDRV bypass - must be connected directly to power FET source nodes |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4–14 V adjustable drive regulator | Eliminates external LDO; enables gate drive voltage matching to MOSFET VGS(th) and RDS(on) for optimal conduction loss |
| Adaptive + adjustable dead-time control | Prevents shoot-through under all load/transient conditions without compromising efficiency - no manual timing calibration needed |
| Internal Schottky bootstrap diode | Reduces external component count by one diode; improves bootstrap capacitor recharge efficiency and reliability |
| 16-pin HTSSOP PowerPAD package | Enables 2.07 °C/W thermal resistance when soldered to PCB copper - sustains 4-A peak currents without derating at 70°C ambient |
| TTL-compatible digital interface | Supports direct connection to standard PWM controllers (e.g., TL5001ACD) without level-shifting - simplifies system integration |
Applications
| Server VRM Power Stage | Industrial PLC DC/DC Module |
|---|---|
Use Scenario: 3.3-V/3-A synchronous-buck stage in server voltage regulator module supplying CPU core logic. IC Role / Device Role / Timing Role: Dual-channel gate driver controlling high-side/low-side N-MOSFETs; enforces dead-time to prevent shoot-through during 500-kHz switching. Use Value: 4-A peak drive capability ensures <10-ns rise/fall times on 3.3-nF gates, achieving >93% efficiency at full load per TI reference design. | Use Scenario: Compact 12-V input to 5-V/2-A isolated DC/DC module in programmable logic controller backplane. IC Role / Device Role / Timing Role: Noninverting MOSFET driver with SYNC-controlled nonsynchronous mode for light-load efficiency improvement. Use Value: Adjustable VDRV (set to 8 V) optimizes gate drive for 8-V-rated MOSFETs, reducing switching losses while maintaining robust noise immunity. |
| Automotive Infotainment PMIC | Telecom Base Station Buck Converter |
Use Scenario: 5-V auxiliary rail generation from 12-V battery in automotive infotainment head unit with strict thermal constraints. IC Role / Device Role / Timing Role: High-current gate driver with thermal shutdown (155–185°C) and -40°C to 125°C operating range for under-hood environments. Use Value: PowerPAD package dissipates heat directly into PCB copper, enabling 3-A continuous operation without heatsink in confined space. | Use Scenario: 48-V to 12-V intermediate bus converter in telecom base station power shelf requiring high reliability and EMI control. IC Role / Device Role / Timing Role: Driver with PWRRDY output synchronized to VCC/VDRV rails - enables safe sequencing of downstream POL converters. Use Value: Open-drain PWRRDY allows wired-OR with other power-good signals, ensuring system-level power-up only after all rails stabilize. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2839PWP | Inverting logic (high IN → low HIGHDR); identical pinout, VDRV adjust, dead-time, and thermal specs | Required where controller output polarity is inverted or complementary drive is needed | Select TPS2839PWP only when inverting logic matches upstream PWM controller output phase |
| LM5109BMAX | Fixed 10-V VDD output; no adjustable VDRV; 1-A peak current; SOIC-8 package; no integrated Schottky | Lower-cost, lower-current solution for <1-A loads; lacks adaptive dead-time and thermal performance of PowerPAD | Choose LM5109BMAX for cost-sensitive, low-power applications where 4-A drive and thermal headroom are unnecessary |
Compared with TPS2839PWP, TPS2838PWP offers noninverting control essential for direct interface with standard PWM controllers; versus LM5109BMAX, it delivers 4× peak current, adjustable gate drive, adaptive dead-time, and superior thermal management - making it suitable for high-density, high-efficiency buck converters.
Availability
TPS2838PWP is available at Aetrix Electronics and suitable for server VRM power stages, industrial PLC DC/DC modules, and automotive infotainment PMICs requiring stable component supply, extended temperature operation (-40°C to 125°C), and high-current gate drive capability.
Supply support for TPS2838PWP 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 company specializing in analog, embedded processing, and power management ICs, with leadership in high-performance power conversion solutions.
The TPS2838PWP belongs to TI's high-current MOSFET driver product line, engineered specifically for synchronous-buck topologies in computing, industrial, and automotive power supplies demanding precision timing, thermal resilience, and design flexibility.
FAQ
What is the maximum gate drive voltage (VDRV) that can be set on the TPS2838PWP?
The TPS2838PWP supports an adjustable VDRV range from 4 V to 14 V, set using an external resistor divider connected to the ADJ pin. The output follows VDRV = 1.235 V × (1 + R2/R1), where R1 connects ADJ to PGND and R2 connects VDRV to ADJ. This allows precise matching to MOSFET gate thresholds and RDS(on) characteristics for optimal efficiency in the TPS2838PWP-based design.
How does the TPS2838PWP prevent shoot-through current between high-side and low-side MOSFETs?
The TPS2838PWP prevents shoot-through using dual dead-time mechanisms: (1) adjustable fixed delay via capacitor on the DELAY pin, and (2) adaptive dead-time that monitors BOOTLO voltage and delays high-side turn-on until the phase node falls below threshold. Both methods are implemented internally and require no external logic, ensuring robust protection across all operating conditions in the TPS2838PWP application.
Can the TPS2838PWP operate in nonsynchronous mode, and how is it enabled?
Yes, the TPS2838PWP supports nonsynchronous operation via the TTL-compatible SYNC pin. When SYNC is driven low, the low-side driver (LOWDR) is disabled, forcing the low-side MOSFET to remain off - effectively converting the synchronous-buck into a nonsynchronous (diode-rectified) topology. This mode improves light-load efficiency and is controlled independently of IN and ENABLE in the TPS2838PWP circuit.
What is the purpose of the PWRRDY pin on the TPS2838PWP, and how should it be used?
The PWRRDY pin on the TPS2838PWP is an open-drain output that asserts low when both VCC ≥10.3 V and the internal VDRV regulator has stabilized. It is used for power sequencing - typically pulled up externally and connected to the enable input of downstream controllers (e.g., PWM ICs) to ensure they activate only after gate drive rails are valid. This guarantees safe startup in systems using the TPS2838PWP.
Does the TPS2838PWP require an external bootstrap diode, or is one integrated?
The TPS2838PWP integrates a Schottky bootstrap diode internally, eliminating the need for an external diode in bootstrap gate drive configurations. This reduces component count, PCB area, and potential failure points while improving bootstrap capacitor recharge efficiency. Only a single external ceramic capacitor (0.1–1 µF) between BOOT and BOOTLO is required to configure the floating high-side driver in the TPS2838PWP design.
TPS2838PWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-PowerTSSOP (0.173", 4.40mm 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:
- 10V ~ 15V
- Logic Voltage - VIL, VIH:
- 1V, 2V
- Current - Peak Output (Source, Sink):
- 4A, 4A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 29 V
- Rise / Fall Time (Typ):
- 65ns, 65ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
TPS2838PWP FAQ
1.How can I place an order for TPS2838PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2838PWP 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 TPS2838PWP reliable?
The price and inventory of TPS2838PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2838PWP is usually 5 days.
3.What payment methods are accepted for TPS2838PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2838PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2838PWP?
TPS2838PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2838PWP 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 TPS2838PWP?
For technical support, including TPS2838PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2838PWP requirements.
6.How does Aetrix verify that TPS2838PWP is sourced from the original manufacturer or authorized distributors?
All TPS2838PWP 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 TPS2838PWP meets industry standards.
7.What is the process for return or replacement of TPS2838PWP?
All TPS2838PWP units undergo pre-shipment inspection (PSI). If there is an issue with TPS2838PWP, 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 TPS2838PWP part is unused and in its original packaging.
Return procedure for TPS2838PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS2838PWP 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…
