TPS2HC08-Q1 - 9.5mΩ Dual-Channel Smart High-Side Switch | TI
MPN: TPS2HC08-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.85 | $185.00 |
| 500 | $1.6 | $800.00 |
| 1,000 | $1.38 | $1,380.00 |
Drop-in alternatives for TPS2HC08-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS2HC08PQVAHRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS2HC08-Q1 Maximum Ratings & Electrical Characteristics
| Channels | 2 (dual high-side) |
| On-Resistance (RDS(on)) | 9.5 mOhm |
| Max Output Current (both channels on) | 7.5 A DC |
| Max Output Current (single channel on) | 10 A DC |
| Supply Voltage Range | 3 V to 28 V |
| Target System | 12 V automotive battery |
| FET Type | Integrated N-Channel MOSFET with charge pump |
| Protection Features | Overcurrent, overvoltage, thermal shutdown, open-load detection |
| Control Interface | Serial (SPI) diagnostic/control |
| Qualification | AEC-Q100 automotive |
| Package | 11-VQFN-HR (2.2 x 3.6 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Quiescent Current (standby) | [DATA_NEEDED: quiescent current] |
| RoHS Status | [DATA_NEEDED: RoHS status] |
| Evaluation Module | 2HC08-MOD-EVM |
TPS2HC08-Q1 Pin Configuration
| Pin 1 | [DATA_NEEDED: pin 1 name] — [DATA_NEEDED] |
| Pin 2 | [DATA_NEEDED: pin 2 name] — [DATA_NEEDED] |
| Pin 3 | [DATA_NEEDED: pin 3 name] — [DATA_NEEDED] |
| Pin 4 | [DATA_NEEDED: pin 4 name] — [DATA_NEEDED] |
| Pin 5 | [DATA_NEEDED: pin 5 name] — [DATA_NEEDED] |
| Pin 6 | [DATA_NEEDED: pin 6 name] — [DATA_NEEDED] |
| Pin 7 | [DATA_NEEDED: pin 7 name] — [DATA_NEEDED] |
| Pin 8 | [DATA_NEEDED: pin 8 name] — [DATA_NEEDED] |
| Pin 9 | [DATA_NEEDED: pin 9 name] — [DATA_NEEDED] |
| Pin 10 | [DATA_NEEDED: pin 10 name] — [DATA_NEEDED] |
| Pin 11 | [DATA_NEEDED: pin 11 name] — [DATA_NEEDED] |
Safe Operating Area
Typical Applications
TPS2HC08-Q1 is suitable for 6 applications: Automotive Body Control Modules, Automotive LED Lighting, Actuator and Motor Drive, Power Distribution and Load Management, Heated Seats and Thermal Comfort Loads, Industrial 12V/24V Load Switching.
Automotive Body Control Modules
The TPS2HC08-Q1 fits body control modules because its 9.5mOhm on-resistance limits each channel to roughly 0.53W at 7.5A, avoiding heatsinks in dense modules, while the 3V-28V range survives cranking and load dump. It switches resistive and inductive loads such as relays, solenoids, and motors. Open-load detection and overcurrent protection report faults to the BCM MCU, enabling safety-compliant diagnostics without external sense circuitry, reducing BOM cost and board area in the 2.2x3.6mm VQFN-HR footprint.
Recommended
Automotive LED Lighting
For headlamp, taillight, and interior LED loads, the TPS2HC08-Q1 drives up to 7.5A DC per channel with low 9.5mOhm conduction loss, minimizing thermal rise in sealed lamp housings. Its adjustable current limiting protects LED strings during short circuits, and open-load detection flags failed lamp branches. The integrated charge pump removes the need for external gate drivers. Compared to discrete FET designs, it shortens design time and provides diagnostic feedback required by lighting functional-safety requirements.
Recommended
Actuator and Motor Drive
The TPS2HC08-Q1 is well suited to switching automotive actuators - motors, pumps, and solenoids - because its integrated NMOS FETs tolerate inductive load transients, and overvoltage clamping absorbs demagnetization energy. With 10A DC capability on a single channel, it handles start-up inrush of pumps and actuators. Thermal shutdown protects the device during stall conditions, while serial diagnostics let the MCU distinguish overcurrent, open-load, and overtemperature faults for predictive maintenance in body and chassis systems.
Recommended
Power Distribution and Load Management
In 12V automotive power distribution boxes and e-fuse architectures, the TPS2HC08-Q1 replaces fusible links with resettable, diagnosable switching. Its 3V-28V operating range handles battery transients, adjustable current limiting enables per-branch protection coordination, and the dual-channel 2.2x3.6mm package doubles density versus single-channel parts. The low standby quiescent current suits always-connected battery rails. Designers validate behavior on the 2HC08-MOD-EVM evaluation platform before layout freeze.
Recommended
Heated Seats and Thermal Comfort Loads
Resistive heating loads such as heated seats, steering wheels, and mirrors draw sustained 5A-7.5A currents, precisely where the TPS2HC08-Q1's 9.5mOhm on-resistance keeps losses under 0.53W per channel. PWM control of the enable input provides proportional heating, while open-load detection identifies broken heating elements and overcurrent protection limits fault energy. The AEC-Q100 qualification and compact VQFN-HR package fit the space and reliability constraints of in-cabin modules.
Recommended
Industrial 12V/24V Load Switching
Beyond automotive, the TPS2HC08-Q1's 28V maximum supply suits industrial 12V and 24V rail load switching for PLC I/O modules and sensor power branches. Integrated protection replaces discrete fuses and reverse-polarity circuits, cutting board area. The 10A single-channel capability covers motorized actuators and heaters, while diagnostic reporting over the serial interface integrates with industrial MCUs. Its low on-resistance ensures cool operation in sealed DIN-rail enclosures with limited airflow and passive cooling only.
Recommended
Recommended Products Summary
Engineering reference data for TPS2HC08-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS2HC08PQVAHRQ1 | TPS2HCS08AQPWPRQ1 | TPS1HC03-Q1 |
|---|---|---|---|---|
| Package | 11-VQFN-HR (2.2x3.6mm) | 11-VQFN-HR (2.2x3.6mm) - same | HTSSOP-16 (PWP) | [DATA_NEEDED] |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Channels | 2 | 2 | 2 | 1 |
| On-Resistance | 9.5 mOhm | 9.5 mOhm | 8 mOhm | 3.2 mOhm |
| Max DC Current | 7.5A (dual) / 10A (single) | 7.5A (dual) / 10A (single) | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage Range | 3V to 28V | 3V to 28V | [DATA_NEEDED] | [DATA_NEEDED] |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified |
| Interface | Serial diagnostics | Serial diagnostics | SPI | [DATA_NEEDED] |
Key Differentiators
- Lowest-conduction-loss integration (vs TPS2HCS08AQPWPRQ1)
- Dual channels in minimal footprint (vs TPS1HC03-Q1)
- Fully integrated protection (vs Discrete MOSFET + driver)
Design Notes
At 7.5A per channel through 9.5mOhm, each channel dissipates about 0.53W (I2 x R), roughly 1W total at full dual-channel load. Provide solid copper pour under the VQFN-HR thermal path and thermal vias to inner planes. Verify junction temperature against the datasheet theta-JA with your specific 4-layer board stackup; do not rely on single-layer layouts above 5A continuous.
Minimize parasitic inductance in the battery-to-switch-to-load path; short, wide traces reduce voltage spikes during short-circuit turn-off when the device rapidly limits current. Place a decoupling capacitor close to the supply pin per TI datasheet layout recommendations, and follow the protection circuit guidance for inductive loads (solenoids, motors) to clamp demagnetization energy within device ratings.
Do not exceed the 28V maximum supply - 12V automotive load dump can exceed this without system-level clamping. Configure adjustable current limits to match the load's inrush profile: pumps and lamps have high inrush that a conservatively set limit may trip. Use the 2HC08-MOD-EVM to validate fault response timing (open-load, overcurrent, thermal) before finalizing protection thresholds in production firmware.
Compliance Information
AEC-Q100 automotive qualification confirmed per TI product data. RoHS/REACH status not present in provided verified data.
