The Texas Instruments TPS1H100BQPWPRQ1 is a 40 V, 100 mΩ single-channel smart high-side switch qualified to AEC-Q100 Grade 1. The “B” version adds a high-accuracy analogue current-sense output alongside a programmable current limit and sub-0.5 µA standby current. Housed in a 14-pin HTSSOP, it provides overload, thermal and loss-of-ground protection for body electronics.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | TPS1H100BQPWPRQ1 |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | TPS1H100-Q1 |
| Package / Case | HTSSOP-14 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to 125°C |
| Power Supply | 3.5 V to 40 V |
| Channels | 1 |
| On-Resistance (RDS(on)) | 100 mΩ |
| Current Sense | Analogue output (high accuracy) |
| Current Limit | Programmable (external resistor) |
| Current-Limit Accuracy | ±20% at 0.5 A |
| Standby Current | <0.5 µA |
| Diagnostic Interface | DIAG_EN multiplexing |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- High-accuracy analogue current-sense output
- Programmable current limit via external resistor
- ±20% current-limit accuracy at 0.5 A
- Sub-500 nA standby current
- DIAG_EN multiplexing for MCU interfaces
- Overload, thermal and reverse-battery protection
Applications
- Automotive body electronics
- Lighting
- Power distribution
- ADAS sensors
- Relay drivers
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
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FAQ
What does the “B” in TPS1H100BQPWPRQ1 indicate?
The B variant provides a high-accuracy analogue current-sense output (±30 mA at 1 A), enabling real-time load current monitoring without a separate sense resistor.
What is the standby current of the TPS1H100BQPWPRQ1?
Standby current is below 0.5 µA, helping to minimise quiescent drain when the switch is off in battery-connected systems.
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