Overview
The TPS4H160-Q1 device, produced by Texas Instruments, is a fully protected quad-channel smart high-side switch. It integrates four 160-mΩ NMOS power FETs, providing full diagnostics and high-accuracy current sense capabilities. This device is designed to enable intelligent control of the load and features an external adjustable current limit to improve system reliability by limiting inrush or overload currents. The TPS4H160-Q1 is available in two versions: Version A with open-drain digital output and Version B with current-sense analog output.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 3.4 V to 40 V | V |
| On-Resistance (RDS(on)) | 160 mΩ | mΩ |
| Standby Current | < 500 nA | nA |
| Current Sense Accuracy | ±15% Under >25-mA Load | % |
| Current Limit Accuracy | ±15% Under >500 mA Load | % |
| Operating Temperature Range | –40°C to 125°C | °C |
| Package Type | 28-Pin HTSSOP (PWP) | |
| ESD Classification | HBM Level H3A, CDM Level C4B |
Key Features
- Quad-channel smart high-side switch with full diagnostics
- Two versions: Version A with open-drain digital output and Version B with current-sense analog output
- Wide operating voltage range: 3.4 V to 40 V
- Ultralow standby current: < 500 nA
- High-accuracy current sense: ±15% under >25-mA load
- Adjustable current limit with external resistor: ±15% under >500 mA load
- Protection features: short-to-GND, thermal shutdown, inductive load negative voltage clamp, loss-of-GND and loss-of-battery protection
- Diagnostics: overcurrent, short-to-ground, open-load, and short-to-battery detection, global fault report for fast interrupt
- AEC-Q100 qualified with functional safety capabilities
Applications
- Multichannel LED drivers and bulb drivers
- Multichannel high-side switches for sub-modules
- Multichannel high-side relay and solenoid drivers
- PLC digital output drivers
Q & A
- What is the operating voltage range of the TPS4H160-Q1?
The operating voltage range is 3.4 V to 40 V.
- What are the key protection features of the TPS4H160-Q1?
The device includes short-to-GND protection, thermal shutdown, inductive load negative voltage clamp, and loss-of-GND and loss-of-battery protection.
- How accurate is the current sense feature of the TPS4H160-Q1?
The current sense feature has an accuracy of ±15% under loads greater than 25 mA.
- What are the diagnostic capabilities of the TPS4H160-Q1?
The device can detect overcurrent, short-to-ground, open-load, and short-to-battery conditions, and provides a global fault report for fast interrupt.
- Is the TPS4H160-Q1 qualified for automotive applications?
- What are the ESD classification levels for the TPS4H160-Q1?
The device has an HBM ESD classification level of H3A and a CDM ESD classification level of C4B.
- What is the standby current of the TPS4H160-Q1?
The standby current is less than 500 nA.
- How many channels does the TPS4H160-Q1 have?
The device has four integrated channels.
- What is the package type of the TPS4H160-Q1?
The device is packaged in a 28-pin HTSSOP (PWP).
- Does the TPS4H160-Q1 support functional safety?
