Overview
The TPS1HC100-Q1, produced by Texas Instruments, is a single-channel smart high-side power switch designed for 12-V automotive systems. This device integrates an NMOS power FET and a charge pump, making it suitable for the intelligent control of various loads. It features full diagnostics, accurate current sensing, and programmable current limits, enhancing system reliability and diagnostic capabilities. The device is AEC-Q100 automotive qualified for grade 1 temperature and is functional safety-capable, making it a robust solution for automotive applications.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| Maximum continuous supply voltage, VBB | - | - | 28 | V |
| Load dump voltage, VLD | - | - | 36 | V |
| Reverse Polarity Voltage | -18 | - | -6 | V |
| Enable pin current, IEN | -1 | - | 20 | mA |
| Enable pin voltage, VEN | -1 | - | 7 | V |
| Diagnostic Enable pin current, IDIA_EN | -1 | - | 20 | mA |
| Diagnostic Enable pin voltage, VDIA_EN | -1 | - | 7 | V |
| Sense pin current, ISNS | -100 | - | 10 | mA |
| Operating junction temperature, TA | -40 | - | 150 | °C |
| On-resistance, RON | - | 100 | - | mΩ |
| Current sense ratio, KSNS | 1040 | - | - | - |
| Current limit threshold, ICL | 5 | - | 9 | A |
Key Features
- Single-channel smart high-side power switch for 12-V automotive systems with full diagnostics.
- Open-drain status output and current sense analog output.
- Wide operating voltage range from 3 to 28 V.
- Low standby current, < 0.5 µA at 85°C.
- 1.8-V, 3.3-V, and 5-V logic compatible.
- Fault sense voltage scaling for ADC protection.
- Programmable current limit accuracy ±18% at 1.9 A.
- High-accuracy current sense, ±6% at 1 A.
- Protection features include overload and short-circuit protection, inductive load negative voltage clamp, undervoltage lockout (UVLO) protection, thermal shutdown and swing with self-recovery, loss of GND and supply protection, and reverse battery protection with external components.
- Diagnostic capabilities include on- and off-state output open-load and short-to-battery detection, overload and short to ground detection, and thermal shutdown and swing detection.
- AEC-Q100 automotive qualified for grade 1 temperature and functional safety-capable.
- Electrical transient disturbance immunity certification of ISO7637-2 and ISO16750-2.
- 14-pin thermally-enhanced PWP package.
Applications
- Automotive display modules.
- Advanced Driver Assistance Systems (ADAS) modules.
- Seat comfort modules.
- Heating, Ventilation, and Air Conditioning (HVAC) control modules.
- Body control modules.
- Low-wattage bulbs, LEDs, relays, solenoids, and heaters.
Q & A
- What is the TPS1HC100-Q1 device?
The TPS1HC100-Q1 is a single-channel smart high-side power switch designed for 12-V automotive systems with full diagnostics.
- What is the operating voltage range of the TPS1HC100-Q1?
The device operates over a voltage range from 3 to 28 V.
- What are the key protection features of the TPS1HC100-Q1?
The device includes overload and short-circuit protection, inductive load negative voltage clamp, undervoltage lockout (UVLO) protection, thermal shutdown and swing with self-recovery, loss of GND and supply protection, and reverse battery protection with external components.
- What diagnostic capabilities does the TPS1HC100-Q1 offer?
The device includes on- and off-state output open-load and short-to-battery detection, overload and short to ground detection, and thermal shutdown and swing detection.
- Is the TPS1HC100-Q1 automotive qualified?
Yes, the device is AEC-Q100 automotive qualified for grade 1 temperature and is functional safety-capable.
- What types of loads can the TPS1HC100-Q1 control?
The device can control a wide variety of resistive, inductive, and capacitive loads, including low-wattage bulbs, LEDs, relays, solenoids, and heaters.
- What is the current sense accuracy of the TPS1HC100-Q1?
The device offers high-accuracy current sensing with an accuracy of ±6% at 1 A.
- How does the TPS1HC100-Q1 handle inrush current?
The device effectively clamps the inrush current under start-up or short-circuit conditions.
- What is the package type of the TPS1HC100-Q1?
The device is available in a 14-pin thermally-enhanced PWP package.
- Is the TPS1HC100-Q1 compatible with various logic levels?
Yes, the device is 1.8-V, 3.3-V, and 5-V logic compatible.
- What certifications does the TPS1HC100-Q1 have for electrical transient disturbance immunity?
The device has electrical transient disturbance immunity certification of ISO7637-2 and ISO16750-2.
