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Texas Instruments TPS1H000AQDGNRQ1
- Part No.:
- TPS1H000AQDGNRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS1H000AQDGNRQ1.pdf
- Description:
- IC PWR DRIVER N-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,995
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Product details
Overview
TPS1H000AQDGNRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive smart high-side power switch with integrated 1000mΩ NMOS FET, 3.4V–40V wide input range, <500nA standby current, adjustable current limit (±10% ≥300mA), and configurable fault response (holding/latch-off/auto-retry) - used in ADAS sensor power control, body lighting, and relay driving.
For engineers reviewing the TPS1H000AQDGNRQ1 datasheet, TPS1H000AQDGNRQ1 pinout, TPS1H000AQDGNRQ1 application, or TPS1H000AQDGNRQ1 equivalent, key selection considerations include its standalone operation capability, open-load detection in both ON/OFF states, thermal swing protection, diagnostic enable control via DIAG_EN, and HVSSOP-8 package with exposed thermal pad for automotive-grade thermal reliability.
Technical Context
The TPS1H000AQDGNRQ1 integrates a charge-pump-driven NMOS high-side switch with dual current-limit architecture (internal fixed 1.0–1.8A and external resistor-adjustable), enabling precise overload clamping without MCU intervention. Its diagnostics subsystem monitors open-load, short-to-battery, short-to-GND, and thermal conditions via open-drain FAULT output.
Three DELAY-pin-configurable fault responses-holding (continuous current clamp), latch-off (capacitor-timed shutdown), and auto-retry (40ms on / 1s off cycling)-allow system-level trade-offs between safety, recovery behavior, and thermal management. Standalone operation is supported by 40V-tolerant IN/DIAG_EN pins and internal pulldown/pullup logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.4V to 40V - supports full automotive battery range including cold-crank (≥3.4V) and load-dump (≤40V) transients. |
| rDS(on) | 1000mΩ at 25°C - defines conduction loss and thermal dissipation under 1A DC load; rises to 2000mΩ at 150°C junction. |
| Standby Current | <500nA at 25°C - enables always-on systems (e.g., body controllers) with negligible battery drain during sleep. |
| Current Limit Accuracy | ±10% at ≥300mA - ensures predictable overcurrent protection across temperature and supply voltage for reliable fuseless design. |
| Thermal Shutdown Threshold | 175°C - triggers immediate output disable to prevent permanent damage during sustained overload or poor heatsinking. |
| Open-Load Detection | Valid in both ON-state (1–8mA threshold) and OFF-state (1.4–2.6V VVS–VOUT) - enables real-time wiring integrity monitoring without external circuitry. |
| Diagnostic Enable | DIAG_EN pin controls FAULT reporting and protection activation - allows selective diagnostics in multi-channel systems with limited MCU GPIO/ADC resources. |
Pinout & Package
DGN package: 8-pin HVSSOP with exposed thermal pad (3.00mm × 4.90mm footprint); thermal pad must be connected to GND or left floating per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input control | Active-high logic input with internal 150–400kΩ pulldown; 40V tolerant - enables direct connection to VS in standalone mode. |
| DIAG_EN | Diagnostic enable | Active-high enable for FAULT reporting and full protection suite; 40V tolerant - permits daisy-chained diagnostics with GPIO arbitration. |
| FAULT | Diagnostic status output | Open-drain output pulled low during fault (overload, open-load, thermal); requires external pullup - provides single-wire fault signaling to MCU. |
| CL | Current limit set | Connect to GND for fixed internal limit (~1.4A) or to resistor divider for adjustable limit - sets trip point with ±10% accuracy ≥300mA. |
| DELAY | Fault response mode select | Configures holding (GND), latch-off (capacitor-to-GND), or auto-retry (external pullup ≥2.7V) - determines post-fault behavior without firmware. |
| GND | Power ground | Reference for all internal circuits and CL/DELAY biasing - must be low-impedance for accurate current sensing and thermal performance. |
| OUT | Switched output | High-side source terminal driving load to GND - includes internal clamp diode (0.3–1.0V forward drop) for inductive kickback suppression. |
| VS | Power supply input | High-voltage rail input (3.4–40V); connects to battery or power distribution node - handles reverse polarity up to –36V for 1 minute. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ±2kV (all pins except VS/OUT/GND) and CDM ±750V - meets automotive functional safety prerequisites. |
| Standalone operation support | IN and DIAG_EN tolerate up to 40V - eliminates level-shifting components when powered directly from VS in isolated modules. |
| Configurable fault recovery | Three DELAY-pin modes (holding/latch-off/auto-retry) - enables hardware-defined safety policy without MCU firmware updates or watchdog coordination. |
| Full diagnostic coverage | Detects open-load (ON/OFF), short-to-battery (ON/OFF), short-to-GND, overload, thermal shutdown, and thermal swing - reduces need for external sensors and validation effort. |
| Negative voltage clamp | Internal clamp limits VDS to 45–65V during inductive flyback - protects FET during relay/valve de-energization without external TVS. |
Applications
| LED Lighting Control | ADAS Sensor Power |
|---|---|
Use Scenario: Driving single-channel automotive LED headlamp or DRL modules requiring precise current regulation and open-wire fault detection. IC Role / Device Role / Timing Role: High-side switch providing controlled 1A DC current with real-time open-load reporting in both ON and OFF states. Use Value: Eliminates need for external current-sense resistors and dedicated open-load comparators - reduces BOM count and PCB area while meeting ASIL-B diagnostic coverage targets. | Use Scenario: Powering radar or camera sub-modules where continuous health monitoring and fail-safe shutdown are required during vehicle operation. IC Role / Device Role / Timing Role: Smart power switch delivering regulated 12V/24V supply with thermal swing detection and latch-off fault response for critical sensor rails. Use Value: Prevents thermal runaway during intermittent short circuits (e.g., connector contamination) via dynamic ΔT monitoring - improves system uptime versus fixed-threshold thermal shutdown alone. |
| Body Control Relay Driver | General Load Switching |
Use Scenario: Replacing electromechanical relays in door lock, seat heater, or mirror control circuits with solid-state switching and diagnostics. IC Role / Device Role / Timing Role: High-side driver enabling PWM-controlled relay coil energization with short-to-GND detection and auto-retry recovery. Use Value: Extends relay contact life by eliminating arcing during turn-off and enables predictive maintenance via FAULT logging - reduces warranty claims and service costs. | Use Scenario: Controlling diverse loads (resistive heaters, capacitive ECU inputs, inductive solenoids) in junction boxes or power distribution units. IC Role / Device Role / Timing Role: Universal high-side switch supporting 3.4–40V operation, adjustable current limit, and loss-of-GND/loss-of-battery protection. Use Value: Single component replaces multiple discrete solutions - simplifies qualification, inventory, and layout across vehicle platforms while maintaining AEC-Q100 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS1H100QPWPRQ1 | Lower rDS(on) of 150mΩ, higher 2.5A current rating, same DGN package and pinout. | Better suited for high-current loads (>500mA) with tighter thermal constraints; retains identical diagnostic features and fault configuration. | Select when lower conduction loss and higher current capacity are required without changing PCB layout or firmware. |
| VNQ7050AJTR | STMicroelectronics device with 500mΩ rDS(on), SPI interface for advanced diagnostics, no standalone mode support. | Requires MCU SPI communication for configuration and status readback; lacks hardware-configurable DELAY pin modes and true standalone operation. | Choose when centralized diagnostics via SPI bus are preferred and MCU resources are available for protocol handling. |
Compared with TPS1H100QPWPRQ1, the TPS1H000AQDGNRQ1 offers higher on-resistance but lower cost and simpler implementation for ≤1A loads; versus VNQ7050AJTR, it delivers deterministic hardware-based fault responses and zero-MCU operation at the expense of programmable register access.
Availability
TPS1H000AQDGNRQ1 is available at Aetrix Electronics and suitable for automotive body electronics, ADAS sensor power distribution, and industrial control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS1H000AQDGNRQ1 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 and embedded processing technologies, with leadership in automotive, industrial, and power management ICs.
The TPS1H000-Q1 product line delivers AEC-Q100-qualified smart high-side switches designed specifically for automotive power distribution, replacing mechanical relays and discrete MOSFET solutions with integrated protection, diagnostics, and configurable fault behavior.
FAQ
What is the maximum continuous load current supported by the TPS1H000AQDGNRQ1?
The TPS1H000AQDGNRQ1 supports a nominal DC load current of up to 1A, as specified in Recommended Operating Conditions. Its internal current limit is factory-set at 1.0–1.8A, and external adjustment allows precise setting down to ~50mA with ±10% accuracy at ≥300mA. Thermal derating applies above 25°C ambient; actual usable current depends on PCB copper area, airflow, and ambient temperature per RθJA = 49.7°C/W.
How does the TPS1H000AQDGNRQ1 detect open-load conditions in the OFF state?
The TPS1H000AQDGNRQ1 detects open-load in the OFF state by monitoring the voltage difference between VS and OUT. When VVS – VOUT exceeds 1.4–2.6V for longer than 200–450µs, an open-load fault is reported on FAULT. An external 15kΩ pullup resistor on OUT is recommended to overcome leakage current (≤70µA) and ensure reliable detection - this functionality is enabled only when DIAG_EN is high.
Can the TPS1H000AQDGNRQ1 operate without a microcontroller?
Yes, the TPS1H000AQDGNRQ1 supports full standalone operation. Its IN and DIAG_EN pins tolerate up to 40V, allowing direct connection to the VS rail. In auto-retry mode, the DELAY pin can be pulled up to VS via a 100kΩ resistor. This enables self-contained power control in isolated domains such as door modules or lamp housings without MCU dependency.
What protection features does the TPS1H000AQDGNRQ1 provide against inductive load switching?
The TPS1H000AQDGNRQ1 includes a built-in drain-to-source clamp diode (VF = 0.3–1.0V) and internal VDS clamping to 45–65V during inductive flyback. It also provides negative voltage clamp protection for reverse EMF and loss-of-GND detection to prevent latch-up during ground interruption - all active without external components.
What is the purpose of the DELAY pin on the TPS1H000AQDGNRQ1?
The DELAY pin configures the device's behavior after current-limit activation: grounding it enables holding mode (continuous current clamp), connecting a capacitor to GND enables latch-off mode (timed shutdown), and pulling it up ≥2.7V enables auto-retry mode (cyclic 40ms ON / 1s OFF). This pin allows hardware-defined fault recovery policies without firmware changes or MCU involvement.
TPS1H000AQDGNRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- Relay, Solenoid Driver
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 4V ~ 40V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 1Ohm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- Current Limiting (Fixed), Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS1H000AQDGNRQ1 FAQ
1.How can I place an order for TPS1H000AQDGNRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS1H000AQDGNRQ1 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 TPS1H000AQDGNRQ1 reliable?
The price and inventory of TPS1H000AQDGNRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS1H000AQDGNRQ1 is usually 5 days.
3.What payment methods are accepted for TPS1H000AQDGNRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS1H000AQDGNRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS1H000AQDGNRQ1?
TPS1H000AQDGNRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS1H000AQDGNRQ1 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 TPS1H000AQDGNRQ1?
For technical support, including TPS1H000AQDGNRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS1H000AQDGNRQ1 requirements.
6.How does Aetrix verify that TPS1H000AQDGNRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS1H000AQDGNRQ1 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 TPS1H000AQDGNRQ1 meets industry standards.
7.What is the process for return or replacement of TPS1H000AQDGNRQ1?
All TPS1H000AQDGNRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS1H000AQDGNRQ1, 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 TPS1H000AQDGNRQ1 part is unused and in its original packaging.
Return procedure for TPS1H000AQDGNRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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