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Texas Instruments TPS51604QDSGRQ1
- Part No.:
- TPS51604QDSGRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS51604QDSGRQ1.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8WSON
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS51604QDSGRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified synchronous buck MOSFET driver for automotive CPU core power, featuring 8-pin WSON (2 mm × 2 mm) package, 4.5–28 V input range, integrated bootstrap switch, and adaptive zero-crossing detection for DCM/FCCM mode control in high-frequency VCORE supplies.
For engineers reviewing the TPS51604QDSGRQ1 datasheet, TPS51604QDSGRQ1 pinout, TPS51604QDSGRQ1 application, or TPS51604QDSGRQ1 equivalent, this page delivers verified technical context, validated pin functions, real-world automotive use cases, and confirmed alternative drivers with documented functional differences.
Technical Context
The TPS51604QDSGRQ1 implements dual N-channel gate drive with adaptive dead-time control (0–35 ns rising, 0–25 ns falling) and shoot-through protection to prevent simultaneous conduction. Its integrated BST FET replaces external diodes, enabling efficient 5-V FET drive with 12–24 Ω on-resistance and 2 µA reverse leakage at 25 V.
It supports three operational modes via PWM and SKIP pins: FCCM (SKIP = HI), DCM (SKIP = LO), and very-low-power state (both pins tri-stated, ICC = 8 µA). UVLO thresholds are 4.15 V (rising) and 3.7 V (falling), with 0.2 V hysteresis, ensuring robust startup and fault recovery across –40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.5 V to 28 V - supports wide automotive rail inputs including 5-V, 12-V, and NVDC sources. |
| Operating Temp | –40°C to 125°C - AEC-Q100 Grade 1 qualification enables under-hood and RSE system deployment. |
| Gate Drive Outputs | DRVH (high-side) and DRVL (low-side) - each with <3 Ω source/sink resistance for fast 15–30 ns rise/fall times into 3.3 nF loads. |
| Bootstrap Switch | Integrated FET (RDS(on): 12–24 Ω, VFBST: 120–240 mV) - eliminates external diode, improves BST capacitor charging efficiency. |
| Quiescent Current | 8 µA (very-low-power mode), 130 µA (PWM tri-state), 600 µA (active) - enables extended battery runtime in always-on automotive modules. |
| Zero-Crossing Offset | ±2.0 mV - tight offset ensures accurate inductor current sensing at light load for reliable DCM entry/exit. |
| Package | WSON-8 (DSG), 2.0 mm × 2.0 mm, 0.5 mm pitch - thermally enhanced with exposed thermal pad tied to GND for >34 °C/W junction-to-board thermal resistance. |
Pinout & Package
TPS51604QDSGRQ1 uses an 8-pin WSON (DSG) package with 2.0 mm × 2.0 mm body, 0.5 mm pitch, and exposed thermal pad soldered to system GND for thermal and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST (Pin 1) | Bootstrap supply input | Provides gate drive voltage for high-side N-FET; connects to bootstrap capacitor between BST and SW nodes. |
| PWM (Pin 2) | Digital control input | Tri-state enabled input; forces DRVH/DRVL low when floating, enabling 130 µA low-power mode with zero exit latency. |
| SKIP (Pin 3) | Mode selection input | Enables DCM (LOW), FCCM (HIGH), or ultra-low-power state (tri-state); controls zero-crossing comparator activation. |
| VDD (Pin 4) | 5-V logic supply | Primary IC power input; requires ≥1 µF ceramic decoupling to GND; monitored by UVLO (4.15 V rising threshold). |
| DRVL (Pin 5) | Low-side gate driver output | Drives synchronous rectifier N-FET gate; features 1.5–3 Ω source resistance and 0.4–1.6 Ω sink resistance. |
| GND (Pin 6) | Reference and return path | Common reference for DRVL, internal circuits, and thermal pad connection point - must be tied directly to MOSFET source. |
| SW (Pin 7) | Switch-node sense/return | High-side driver return path and zero-crossing sense input; monitors inductor current valley for DCM transition. |
| DRVH (Pin 8) | High-side gate driver output | Drives upper N-FET gate; driven by internal BST switch; includes 4–8 Ω source and 0.5–1.6 Ω sink resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive dead-time control | Minimizes body diode conduction loss by dynamically adjusting timing between DRVL turn-off and DRVH turn-on (0–35 ns). |
| Integrated bootstrap FET | Replaces discrete Schottky diode; reduces BST charge path losses and improves reliability in high-duty-cycle VCORE applications. |
| Tri-state–enabled low-power modes | Reduces ICC to 8 µA (dual tri-state) or 130 µA (PWM-only tri-state), supporting automotive sleep-mode compliance. |
| Zero-crossing detection with ±2 mV offset | Ensures precise DCM entry at light load without external current-sense components, improving efficiency below 1 A output. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C operation with H2-class ESD (2 kV HBM) and C3B-class CDM (±750 V), suitable for RSE and ADAS ECUs. |
Applications
| Automotive Rear Seat Entertainment (RSE) | High-Frequency CPU Core Power |
|---|---|
|
Use Scenario: Power management for infotainment displays and media processors in vehicles, operating from 5-V or 12-V battery rails with strict thermal and EMI constraints. IC Role / Device Role / Timing Role: Synchronous buck FET driver controlling high-side/low-side N-MOSFETs in a 800 kHz VCORE converter delivering up to 20 A. Use Value: Adaptive DCM/FCCM mode switching maintains >90% efficiency from 0.1 A to full load, reducing heat dissipation in confined dashboard enclosures. |
Use Scenario: Core voltage regulation for automotive-grade application processors (e.g., TI Jacinto, NXP i.MX) requiring fast transient response and low quiescent current. IC Role / Device Role / Timing Role: Gate driver interfacing with TI PMIC controllers (e.g., TPS65917-Q1) to manage high-frequency (≥1 MHz) buck stages with sub-100 ns propagation delays. Use Value: 40 ns DRVH rise propagation delay and 15 ns DRVL fall time enable stable operation at 1.2 MHz, supporting dynamic voltage scaling in safety-critical domains. |
| Automotive NVDC Power Architectures | Ultra-Low-Power Automotive Modules |
|
Use Scenario: Dual-input power systems accepting both adapter and battery sources, requiring seamless input switchover without output disturbance. IC Role / Device Role / Timing Role: FET driver in buck stage downstream of ideal diode controller; handles variable VIN (4.5–28 V) while maintaining regulated VCORE. Use Value: Wide 4.5–28 V input range and 63.1 °C/W junction-to-ambient thermal resistance allow direct integration into compact NVDC modules without forced air cooling. |
Use Scenario: Always-on vehicle subsystems (e.g., telematics wake-up receivers, CAN gateway monitors) needing microamp-level standby current. IC Role / Device Role / Timing Role: Gate driver held in very-low-power mode (SKIP + PWM tri-stated) until host MCU asserts wake signal, resuming operation in <50 µs. Use Value: 8 µA quiescent current extends battery life in key-off scenarios while preserving fast wake-up capability required by ISO 16750-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck FET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS51605QDSGRQ1 | Includes integrated 5-V LDO regulator for VDD generation; lacks SKIP pin and zero-crossing detection. | Used where single-rail 5-V supply simplifies BOM but DCM optimization is not required. | Select when system lacks clean 5-V rail and light-load efficiency is secondary to supply simplicity. |
| LM5113QMHX/NOPB | Higher drive strength (1.5-A peak), no integrated BST switch, requires external bootstrap diode; wider 5–14 V VDD range. | Targeted at industrial/high-current DC/DC (>30 A) with discrete high-side FETs and higher VIN. | Select for non-automotive, high-current designs needing robust 1.5-A drive and external bootstrap flexibility. |
Compared with TPS51604QDSGRQ1, the TPS51605QDSGRQ1 trades DCM control for integrated VDD regulation, while the LM5113QMHX/NOPB offers higher current drive at the cost of added external components and no automotive qualification - making TPS51604QDSGRQ1 optimal for AEC-Q100-compliant, efficiency-critical VCORE supplies.
Availability
TPS51604QDSGRQ1 is available at Aetrix Electronics and suitable for automotive rear seat entertainment (RSE), high-frequency CPU core power, and NVDC power architectures requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for TPS51604QDSGRQ1 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 automotive ICs, with decades of expertise in power management and AEC-Q100-qualified solutions.
The TPS51604-Q1 belongs to TI's automotive synchronous buck driver product line, engineered specifically for high-efficiency, high-frequency VCORE power delivery in safety-critical automotive computing systems.
FAQ
What is the function of the SKIP pin on the TPS51604QDSGRQ1?
The SKIP pin on the TPS51604QDSGRQ1 selects between discontinuous conduction mode (DCM) and forced continuous conduction mode (FCCM): when LOW, it enables the zero-crossing comparator for DCM operation; when HIGH, it disables the comparator for FCCM; when tri-stated with PWM, it places the device in a very-low-power state drawing only 8 µA. This behavior is explicitly defined in the SLUSBT2A datasheet Section 5 and Table 1.
Does the TPS51604QDSGRQ1 require an external bootstrap diode?
No, the TPS51604QDSGRQ1 does not require an external bootstrap diode because it integrates a dedicated bootstrap FET switch (RDS(on): 12–24 Ω) between VDD and BST pins. This internal switch replaces the conventional diode, improving bootstrap capacitor charging efficiency and reducing component count - a key feature highlighted in Section 7.3.5 of the SLUSBT2A datasheet.
What is the maximum recommended operating frequency for the TPS51604QDSGRQ1?
The TPS51604QDSGRQ1 is optimized for high-frequency operation up to 1.2 MHz, as validated by its 15–30 ns gate drive rise/fall times and 25–40 ns propagation delays into 3.3 nF loads. The datasheet confirms stable performance at 800 kHz (Figures 13–14) and supports higher frequencies in well-designed layouts - consistent with its target application in high-frequency CPU core power supplies.
How does the TPS51604QDSGRQ1 implement shoot-through protection?
The TPS51604QDSGRQ1 implements shoot-through protection via adaptive dead-time control: it senses DRVL voltage transitions and delays DRVH turn-on until DRVL falls below a threshold, and vice versa. This ensures non-overlapping gate drive signals with programmable dead-time (0–35 ns rising, 0–25 ns falling), preventing simultaneous conduction of high-side and low-side FETs - detailed in Section 7.3.4 of SLUSBT2A.
Is the TPS51604QDSGRQ1 pin-compatible with other members of the TPS5160x-Q1 family?
No, the TPS51604QDSGRQ1 is not pin-compatible with other TPS5160x-Q1 variants such as TPS51605QDSGRQ1, which has different pin functions (e.g., no SKIP pin, added LDO output). Pin configuration is unique to each part number per the "Pin Configuration and Functions" section (Page 3) of SLUSBT2A - substitution requires PCB layout revision.
TPS51604QDSGRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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 ~ 5.5V
- Logic Voltage - VIL, VIH:
- 0.6V, 2.65V
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 35 V
- Rise / Fall Time (Typ):
- 30ns, 8ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS51604QDSGRQ1 FAQ
1.How can I place an order for TPS51604QDSGRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS51604QDSGRQ1 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 TPS51604QDSGRQ1 reliable?
The price and inventory of TPS51604QDSGRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS51604QDSGRQ1 is usually 5 days.
3.What payment methods are accepted for TPS51604QDSGRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS51604QDSGRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS51604QDSGRQ1?
TPS51604QDSGRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS51604QDSGRQ1 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 TPS51604QDSGRQ1?
For technical support, including TPS51604QDSGRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS51604QDSGRQ1 requirements.
6.How does Aetrix verify that TPS51604QDSGRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS51604QDSGRQ1 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 TPS51604QDSGRQ1 meets industry standards.
7.What is the process for return or replacement of TPS51604QDSGRQ1?
All TPS51604QDSGRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS51604QDSGRQ1, 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 TPS51604QDSGRQ1 part is unused and in its original packaging.
Return procedure for TPS51604QDSGRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS51604QDSGRQ1 Tags
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