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Texas Instruments TPS1HTC30-Q1 Single-Channel Smart High-Side Switch

Texas Instruments TPS1HTC30-Q1 Single-Channel Smart High-Side Switch comes with an integrated NMOS power FET and charge pump designed to meet the requirements of 24V automotive battery systems. The device’s low R_ON (30mΩ) minimizes power dissipation and drives a wide range of output load current up to 6A DC. The 60V DC operating range improves the system’s robustness.

The device integrates protection features such as thermal shutdown, current limit, and output clamp. These features improve system robustness during fault events such as a short circuit. TPS1HTC30-Q1 implements an adjustable current limiting circuit that enhances the system’s reliability by minimizing overload current and reducing inrush current when driving large capacitive loads. The device also provides an accurate load current sense that allows for improved load diagnostics, such as open-load and overload detection, enabling better predictive maintenance.

The Texas Instruments TPS1HTC30-Q1 is available in a small 14-pin, 4.40mm × 5.0mm HTSSOP leaded package with 0.65mm pin pitch, minimizing the PCB footprint.

Features

Single-channel smart high-side power switch for 24V automotive systems with full diagnostics
6V to 60V wide operating voltage range
- 60V OVP protection
Low R_ON of 30mΩ (typ.), 55mΩ (max.)
< 0.5µA low standby current
< 2mA low quiescent current (I_q)
Improve system-level reliability through adjustable current limiting
- 2A to 16A current limit
Accurate current sensing of ±4% at 1A
Protection
- Overload and short-circuit protection
- Integrated inductive discharge clamp
- Undervoltage lockout (UVLO) protection
- Loss of GND, loss of supply protection
- Reverse battery protection with external components

Diagnostics
- On and off-state output open-load and short-to-battery detection
- Overload and short-to-ground detection
- Absolute and relative thermal shutdown detection
Functional Safety-Capable
- Documentation available to aid functional safety system design
–40 to 125°C operating junction temperature
Input control that is 1.8V, 3.3V and 5V logic compatible
Integrated fault sense voltage scaling for ADC protection
Qualifications
- AEC-Q100 qualified for automotive applications
  - Temperature grade 1 (–40°C to +125°C, T_A)
14-pin thermally-enhanced TSSOP package

Applications

General resistive, inductive, and capacitive loads

Texas Instruments TPS1HTC30-Q1 Single-Channel Smart High-Side Switch

Features

Applications

Functional Block Diagram

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