Model No: TPS1H000AQDGNRQ1
Texas Instruments TPS1H000AQDGNRQ1
Manufacturer: Texas Instruments
SEMICON NO.: TPS1H000AQDGNRQ1
Package: 8-HVSSOP
Stock: In stock
Description: Power Switch 1:1 N-Channel 1A 40V 1Ω
SEMICON NO.: TPS1H000AQDGNRQ1
Package: 8-HVSSOP
Stock: In stock
Description: Power Switch 1:1 N-Channel 1A 40V 1Ω
Quantity :
| Mfr | Texas Instruments |
| Device Type | Single-Channel Smart High-Side Power Switch |
| Operating Voltage (VLOAD) | 4 V to 40 V |
| On‑Resistance (RDS(on)) | 1 Ω (typical) |
| Output Current (Max) | 1 A |
| Current Limit (Adjustable) | 150 mA to 1.8 A |
| Standby Current | < 500 nA |
| Operating Temperature | -40°C to +125°C |
| Package | 8-HVSSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
TPS1H000AQDGNRQ1 TI automotive switch
The TPS1H000AQDGNRQ1 is an automotive-grade, single-channel, high-side smart power switch from Texas Instruments, housed in an 8-pin HVSSOP (DGNR) package with PowerPAD™ for enhanced thermal performance. It is designed to drive resistive, inductive, and capacitive loads such as solenoids, valves, and motors directly from automotive battery rails, operating from a wide 4V to 40V input range and capable of delivering a continuous output current of up to 1A.
The TPS1H000AQDGNRQ1 is an automotive-grade, single-channel, high-side smart power switch from Texas Instruments, housed in an 8-pin HVSSOP (DGNR) package with PowerPAD™ for enhanced thermal performance. It is designed to drive resistive, inductive, and capacitive loads such as solenoids, valves, and motors directly from automotive battery rails, operating from a wide 4V to 40V input range and capable of delivering a continuous output current of up to 1A.
Key Features and Highlights:
● Robust Protection Suite: Integrates comprehensive protection features including over-current protection (OCP) with adjustable current limit via an external sense resistor, over-temperature protection (OTP) with thermal shutdown, and reverse battery protection up to -40V, ensuring reliable operation in harsh automotive environments.
● Advanced Diagnostics: Features a dedicated DIAG_EN pin and an open-drain FAULT output pin, enabling advanced diagnostic functions such as load current monitoring, short-to-ground detection, and open-load detection in both on and off states for enhanced system monitoring and safety.
● Low On-Resistance: Offers a low typical Rds(on) of 1Ω (at 25°C), minimizing conduction losses and power dissipation, which improves overall system efficiency and thermal performance.
● Controlled Switching: Provides adjustable slew rate control for the output through an external capacitor on the SRC pin, allowing designers to manage inrush currents and reduce electromagnetic interference (EMI).
● Robust Protection Suite: Integrates comprehensive protection features including over-current protection (OCP) with adjustable current limit via an external sense resistor, over-temperature protection (OTP) with thermal shutdown, and reverse battery protection up to -40V, ensuring reliable operation in harsh automotive environments.
● Advanced Diagnostics: Features a dedicated DIAG_EN pin and an open-drain FAULT output pin, enabling advanced diagnostic functions such as load current monitoring, short-to-ground detection, and open-load detection in both on and off states for enhanced system monitoring and safety.
● Low On-Resistance: Offers a low typical Rds(on) of 1Ω (at 25°C), minimizing conduction losses and power dissipation, which improves overall system efficiency and thermal performance.
● Controlled Switching: Provides adjustable slew rate control for the output through an external capacitor on the SRC pin, allowing designers to manage inrush currents and reduce electromagnetic interference (EMI).
Application Scenarios:
This high-side switch is engineered for precise and protected power distribution in 12V and 24V automotive systems. Its primary applications include:
● Driving and protecting solenoids, valves, and actuators in engine management, transmission control, and braking systems.
● Controlling power to small motors in automotive body electronics, such as window lifters, mirror adjusters, and sunroof mechanisms.
● Managing power for LED lighting modules, infotainment subsystems, and sensors with integrated diagnostics and protection.
● Serving as a protected power switch in industrial automation and control modules for valves, relays, and small actuators.
This high-side switch is engineered for precise and protected power distribution in 12V and 24V automotive systems. Its primary applications include:
● Driving and protecting solenoids, valves, and actuators in engine management, transmission control, and braking systems.
● Controlling power to small motors in automotive body electronics, such as window lifters, mirror adjusters, and sunroof mechanisms.
● Managing power for LED lighting modules, infotainment subsystems, and sensors with integrated diagnostics and protection.
● Serving as a protected power switch in industrial automation and control modules for valves, relays, and small actuators.
Frequently Asked Questions (FAQ):
Q1: How does the adjustable current limit feature enhance system design?
A: By using an external sense resistor (R_sns), designers can precisely set the over-current protection threshold to match the specific load requirements. This flexibility allows for optimized protection without nuisance tripping and enables the device to be used with a wider variety of loads, improving design reuse and safety.
Q2: What is the significance of the open-load detection in both ON and OFF states?
A: This diagnostic capability allows the system controller to detect a disconnected or broken wire (open load) whether the switch is commanded on or off. Early detection of such faults is critical for functional safety in automotive systems, enabling preventive maintenance or fail-safe actions before a complete system failure occurs.
Q1: How does the adjustable current limit feature enhance system design?
A: By using an external sense resistor (R_sns), designers can precisely set the over-current protection threshold to match the specific load requirements. This flexibility allows for optimized protection without nuisance tripping and enables the device to be used with a wider variety of loads, improving design reuse and safety.
Q2: What is the significance of the open-load detection in both ON and OFF states?
A: This diagnostic capability allows the system controller to detect a disconnected or broken wire (open load) whether the switch is commanded on or off. Early detection of such faults is critical for functional safety in automotive systems, enabling preventive maintenance or fail-safe actions before a complete system failure occurs.
AlternativeSwitch List
● TPS1H000BQPWPRQ1: A variant in a different package (e.g., 14-pin HTSSOP) offering similar functionality with potentially additional pins for more control or diagnostic features within the same family.
● VND5E025AKTR-E: An STMicroelectronics single-channel high-side driver with similar current capability and integrated protections (like OCP and OTP), providing a direct functional alternative from another major automotive semiconductor supplier.
● BTS50085-1TMA: An Infineon Technologies smart high-side power switch with a higher current rating (e.g., 5A) and advanced diagnostics, suitable for applications requiring higher load driving capability.
● TPS1H000BQPWPRQ1: A variant in a different package (e.g., 14-pin HTSSOP) offering similar functionality with potentially additional pins for more control or diagnostic features within the same family.
● VND5E025AKTR-E: An STMicroelectronics single-channel high-side driver with similar current capability and integrated protections (like OCP and OTP), providing a direct functional alternative from another major automotive semiconductor supplier.
● BTS50085-1TMA: An Infineon Technologies smart high-side power switch with a higher current rating (e.g., 5A) and advanced diagnostics, suitable for applications requiring higher load driving capability.
