Overview
The TPS4H000-Q1, produced by Texas Instruments, is a fully protected quad-channel smart high-side switch designed for automotive and other demanding applications. This device features integrated 1000-mΩ NMOS power FETs and is packaged in a 20-pin thermally-enhanced HTSSOP (PWP) package. It is AEC-Q100 qualified, ensuring it meets stringent automotive standards with a device temperature grade 1 range of –40°C to 125°C. The TPS4H000-Q1 offers full diagnostics and high-accuracy current-sense capabilities, making it ideal for intelligent control of various loads.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | HTSSOP (PWP) | - |
| Pins | 20 | - |
| Operating Temperature Range | –40 to 125 | °C |
| Supply Operating Voltage | 3.4 to 40 | V |
| Standby Current | < 500 nA | - |
| Current Sense Accuracy | ±15% under >5-mA load | - |
| Adjustable Current Limit | ±20% under >100-mA load | - |
| ESD Classification | HBM Level H2, CDM Level C4B | - |
| Junction-to-Ambient Thermal Resistance | 38.5 | °C/W |
Key Features
- Qualified for automotive applications and AEC-Q100 certified.
- Quad-channel 1000-mΩ smart high-side switch with full diagnostics.
- Wide operating voltage range of 3.4 to 40 V.
- Ultralow standby current of less than 500 nA.
- High-accuracy current sense with ±15% accuracy under loads greater than 5 mA.
- Adjustable current limit with external resistor ±20% under loads greater than 100 mA.
- Protection features include short-to-GND protection, thermal shutdown with latch-off option, inductive load negative voltage clamp, and loss of GND and battery protection.
- Diagnostics include overcurrent, short to ground, open-load, and short-to-battery detection, along with a global fault for fast interrupt.
- 20-pin thermally-enhanced PWP package.
Applications
- Quad-channel LED drivers.
- High-side switches for sub-modules in automotive and industrial systems.
- High-side relay drivers for various loads including relays, solenoids, and valves.
- General resistive, capacitive, and inductive load control.
- Cameras and sensors in automotive and industrial environments.
Q & A
- What is the operating temperature range of the TPS4H000-Q1?
The operating temperature range is –40°C to 125°C.
- What is the supply operating voltage range of the TPS4H000-Q1?
The supply operating voltage range is 3.4 to 40 V.
- What is the standby current of the TPS4H000-Q1?
The standby current is less than 500 nA.
- What are the ESD classification levels for the TPS4H000-Q1?
The device has HBM Level H2 and CDM Level C4B ESD classification.
- What types of loads can the TPS4H000-Q1 handle?
The device can handle resistive, inductive, and capacitive loads, including LEDs, relays, and sub-modules.
- How does the TPS4H000-Q1 protect against overcurrent and short circuits?
The device features short-to-GND protection by current limit, thermal shutdown with latch-off option, and inductive load negative voltage clamp.
- What diagnostic features are available on the TPS4H000-Q1?
The device includes diagnostics for overcurrent, short to ground, open-load, and short-to-battery detection, along with a global fault for fast interrupt.
- How is the current limit adjusted on the TPS4H000-Q1?
The current limit can be adjusted using an external resistor.
- What is the package type and pin count of the TPS4H000-Q1?
The device is packaged in a 20-pin thermally-enhanced HTSSOP (PWP) package.
- Is the TPS4H000-Q1 suitable for automotive applications?
Yes, it is qualified for automotive applications and meets AEC-Q100 standards.
