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Texas Instruments TLV9351QDCKRQ1
- Part No.:
- TLV9351QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9351QDCKRQ1.pdf
- Description:
- Automotive, single-channel, 3.5M
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
TLV9351QDCKRQ1 from Texas Instruments is a single-channel, AEC-Q100 Grade 1 qualified automotive operational amplifier optimized for cost-sensitive high-voltage systems. It delivers rail-to-rail output, ±350 µV offset voltage, 3.5 MHz gain-bandwidth, and 20 V/µs slew rate - enabling precision signal conditioning in HEV/EV motor control current sensing and ADAS sensor front-ends.
For engineers reviewing the TLV9351QDCKRQ1 datasheet, TLV9351QDCKRQ1 pinout, TLV9351QDCKRQ1 application, or TLV9351QDCKRQ1 equivalent, this page provides verified technical context, package-specific pin functions, real-world automotive use cases, and validated alternative options for design-in and supply continuity.
Technical Context
The TLV9351QDCKRQ1 implements a patented input architecture that eliminates conventional back-to-back diode clamping, enabling full 40 V differential input voltage range without signal distortion or settling delay - critical for multiplexer-switched sensor interfaces. Its MUX-friendly inputs operate linearly up to the supply rails and support open-loop comparator operation.
It integrates EMI/RFI filtering on both inputs, achieving ≥71 dB EMIRR from 400 MHz to 5 GHz (e.g., 90 dB at 2.4 GHz), and features robust ±60 mA output drive with rail-to-rail swing down to 5 mV from rails under no-load conditions at 40 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 3.5 MHz - supports stable closed-loop operation up to ~300 kHz with G = 10, suitable for fast current-sense amplification. |
| Slew rate | 20 V/µs - enables accurate reproduction of 10-V step signals within 500 ns, critical for transient detection in motor control. |
| Input offset voltage | ±350 µV (typ) - ensures ≤0.35% error in 100-mV full-scale current-sense applications without trimming. |
| Common-mode rejection | 110 dB (typ) - rejects >100,000:1 common-mode interference, essential for single-supply low-side sensing in noisy powertrain environments. |
| Supply voltage range | 4.5 V to 40 V - operates across automotive battery transients (e.g., load dump up to 40 V) without external regulation. |
| Quiescent current | 600 µA per amplifier - enables always-on monitoring in body electronics with minimal standby power impact. |
| EMI rejection ratio | 90 dB at 2.4 GHz - suppresses Wi-Fi/Bluetooth interference in infotainment and ADAS camera modules. |
Pinout & Package
TLV9351QDCKRQ1 is packaged in a 5-pin SC70 (DCK) package measuring 2.0 mm × 2.1 mm, optimized for space-constrained automotive PCBs. Thermal resistance RθJA is 202.6°C/W, requiring minimal copper area for 125°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Noninverting input | Accepts signals up to V– – 0.1 V or V+ – 2 V; supports rail-to-rail common-mode range and comparator mode. |
| IN– | Inverting input | Differential input voltage tolerance up to 40 V; no internal clamping diodes reduce settling delay in multiplexed sensor arrays. |
| OUT | Amplifier output | Rail-to-rail swing (5 mV headroom at no load); ±60 mA drive capability supports direct interface to ADC drivers or discrete FET gates. |
| V– | Negative supply | Connects to ground or negative rail; supports dual-supply (±2.25 V to ±20 V) or single-supply (4.5 V to 40 V) configurations. |
| V+ | Positive supply | Withstands 42 V absolute max; enables operation during automotive cold-crank (4.5 V) and load-dump (40 V) events. |
Key Features
| Feature | Design Value |
|---|---|
| MUX-friendly inputs | Enables direct connection to analog multiplexers without external protection; eliminates settling delay caused by diode conduction in conventional op amps. |
| Rail-to-rail output | Delivers full dynamic range into 10 kΩ loads at 40 V supply, maximizing ADC utilization in 12-bit+ current-sense systems. |
| Robust EMI filtering | Integrated RF filters on IN+ and IN– pins provide ≥90 dB rejection at 2.4 GHz, reducing need for external ferrite beads or shielding in ADAS ECUs. |
| Low offset drift | ±1.5 µV/°C ensures <15 µV total drift over –40°C to 125°C, maintaining accuracy in engine bay temperature cycling. |
| High output current | ±60 mA sourcing/sinking capability drives capacitive loads up to 300 pF directly, simplifying filter stage design in sensor signal chains. |
Applications
| Infotainment Audio Preamp | HEV/EV Motor Phase Current Sensing |
|---|---|
Use Scenario: Amplifying low-level microphone or line-in signals in automotive head units exposed to GSM/Bluetooth RF noise. IC Role / Device Role / Timing Role: Low-noise (15 nV/√Hz), high-PSRR (110 dB) signal conditioning front-end with EMI-hardened inputs. Use Value: Eliminates audible RF demodulation artifacts without external shielding, reducing BOM cost and board area. | Use Scenario: Isolated shunt-based current measurement in inverter gate driver circuits operating at 40 V bus voltage. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output amplifier with 40 V differential input tolerance for direct shunt interface. Use Value: Supports fast overload recovery (<600 ns) and 20 V/µs slew rate to capture IGBT switching transients without distortion. |
| ADAS Camera Module Bias Supply | Body Control Unit Window Lift Monitor |
Use Scenario: Providing stable bias voltage to CMOS image sensor pixel arrays in rear-view cameras subject to 2.4 GHz Wi-Fi interference. IC Role / Device Role / Timing Role: Precision voltage follower with 90 dB EMIRR at 2.4 GHz and low 600 µA quiescent current. Use Value: Prevents image noise and rolling bars caused by RF coupling, meeting ISO 11452-2 immunity requirements. | Use Scenario: Monitoring DC motor current during window lift/down to detect pinch events in door modules. IC Role / Device Role / Timing Role: Low-offset (±350 µV), temperature-stable amplifier for 50-mV shunt voltage amplification. Use Value: Enables reliable pinch detection across –40°C to 125°C with <0.5% total offset error, eliminating mechanical limit switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911QDBVRQ1 | Lower bandwidth (8 MHz), higher offset (1.5 mV), no MUX-friendly inputs, 500 µA IQ | Better for low-power, low-frequency sensor buffering; unsuitable for fast current-sense or multiplexed inputs | Select when ultra-low quiescent current dominates over speed and input flexibility |
| LM7331QDRQ1 | Higher supply range (up to 44 V), higher IQ (1.3 mA), no integrated EMI filtering, 20 V/µs slew rate | Preferred for high-reliability powertrain control where EMI immunity is managed externally | Select when legacy design compatibility or higher absolute max voltage is required over integrated RF hardening |
Compared with TSV911QDBVRQ1 and LM7331QDRQ1, TLV9351QDCKRQ1 uniquely combines MUX-friendly inputs, 90 dB 2.4-GHz EMIRR, and 3.5-MHz bandwidth at 600 µA - making it optimal for next-gen automotive sensor hubs where signal integrity, space, and cost are co-constrained.
Availability
TLV9351QDCKRQ1 is available at Aetrix Electronics and suitable for HEV/EV inverter control, ADAS sensor signal conditioning, and body electronics current monitoring requiring stable component supply across automotive production lifecycles.
Supply support for TLV9351QDCKRQ1 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 and embedded processing technologies for automotive, industrial, and communications markets.
The TLV935x-Q1 product line was designed specifically for AEC-Q100 Grade 1 automotive applications demanding high-voltage operation, EMI resilience, and cost efficiency - targeting current sensing, sensor interfacing, and powertrain signal conditioning.
FAQ
What is the maximum differential input voltage supported by TLV9351QDCKRQ1?
TLV9351QDCKRQ1 supports a maximum differential input voltage of 40 V - enabled by its patented input architecture without clamping diodes. This allows direct use in comparator mode or with fast-ramping multiplexed sensor signals without distortion or extended settling time, unlike conventional op amps limited to ~0.7 V differential range.
Does TLV9351QDCKRQ1 require external EMI filtering in automotive designs?
No, TLV9351QDCKRQ1 integrates EMI/RFI filters on both input pins, delivering ≥90 dB rejection at 2.4 GHz and ≥71 dB at 400 MHz. This eliminates the need for external ferrite beads or RC filters in most infotainment and ADAS applications, reducing component count and board area while meeting ISO 11452-2 immunity requirements.
Can TLV9351QDCKRQ1 operate from a single 5-V supply?
Yes, TLV9351QDCKRQ1 operates from a single supply as low as 4.5 V. At 5 V, it maintains rail-to-rail output swing (20–30 mV headroom into 10 kΩ), 3.5 MHz bandwidth, and ±350 µV offset - making it suitable for low-voltage body electronics like door module current monitors and LED driver feedback loops.
What is the thermal performance of TLV9351QDCKRQ1 in the DCK package?
In the 5-pin SC70 (DCK) package, TLV9351QDCKRQ1 has a junction-to-ambient thermal resistance (RθJA) of 202.6°C/W. With 600 µA quiescent current and typical 10-mW dissipation, it remains within safe operating limits up to 125°C ambient when mounted on standard 1-oz copper PCBs without additional heatsinking.
Is TLV9351QDCKRQ1 pin-compatible with other members of the TLV935x-Q1 family?
No, TLV9351QDCKRQ1 (single-channel, 5-pin DCK) is not pin-compatible with TLV9352-Q1 (dual, 8-pin) or TLV9354-Q1 (quad, 14-pin). Each variant uses distinct pinouts and package footprints. Migration requires PCB layout changes; however, electrical specifications and functional behavior are consistent across the family for design reuse.
TLV9351QDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 350 µV
- Current - Supply:
- 650µA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TLV9351QDCKRQ1 FAQ
1.How can I place an order for TLV9351QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9351QDCKRQ1 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 TLV9351QDCKRQ1 reliable?
The price and inventory of TLV9351QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9351QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV9351QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9351QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9351QDCKRQ1?
TLV9351QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9351QDCKRQ1 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 TLV9351QDCKRQ1?
For technical support, including TLV9351QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9351QDCKRQ1 requirements.
6.How does Aetrix verify that TLV9351QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV9351QDCKRQ1 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 TLV9351QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV9351QDCKRQ1?
All TLV9351QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV9351QDCKRQ1, 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 TLV9351QDCKRQ1 part is unused and in its original packaging.
Return procedure for TLV9351QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV9351QDCKRQ1 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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