TPS4H000AQPWPRQ1 - 40V Quad Smart High-Side Switch | TI
MPN: TPS4H000AQPWPRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.62 | $2.62 |
| 10 | $2.36 | $23.60 |
| 100 | $1.95 | $195.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.15 | $1,150.00 |
Drop-in alternatives for TPS4H000AQPWPRQ1 — 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:
TPS4H000BQPWPRQ1
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →TPS4H160BQPWPRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS4H000AQPWPRQ1 Maximum Ratings & Electrical Characteristics
| Product Type | Quad-channel smart high-side switch |
| Number of Channels | 4 |
| Maximum Input Voltage | 40 V |
| On-Resistance (RDS(on)) | 1000 mΩ per channel |
| Adjustable Current Limit | Yes (external, per datasheet) |
| Current-Sense Output | Yes, high-accuracy current sense |
| Diagnostics | Open-load and fault diagnostics (version A reporting) |
| Integrated Charge Pump | Yes |
| Protection | Fully protected (overload, inrush limiting) |
| Automotive Qualification | AEC-Q100 qualified (Q1) |
| Package | 20-HTSSOP (PWP) with power pad |
| Mounting Type | Surface Mount |
| Output Configuration | High-side, N-Channel |
| Family Versions | A version (this part) and B version with different diagnostic reporting |
TPS4H000AQPWPRQ1 20-htssop (pwp) with power pad Pin Configuration Guide
Complete pinout information for TPS4H000AQPWPRQ1 (20-htssop (pwp) with power pad package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TPS4H000AQPWPRQ1.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPS4H000AQPWPRQ1 is suitable for 6 applications: Automotive LED Lighting Modules, Body Control Module (BCM) Load Drivers, Industrial 24-V PLC I/O Modules, Heaters and Resistive Load Management, Relay and Solenoid Driving, Smart Fuse / eFuse Load Protection.
Automotive LED Lighting Modules
The TPS4H000AQPWPRQ1 fits automotive LED lighting because its 40-V rating survives load-dump transients and its external adjustable current limit suppresses LED turn-on inrush, protecting both the internal 1000-mΩ FETs and the lamp string. The high-accuracy current-sense output lets the body controller verify lamp presence and detect open or shorted LEDs per channel in real time through the A-version diagnostic reporting. In a typical design, each of the four channels drives one LED string or lamp group from a 12-V rail, with the current-limit resistor set above the steady-state lamp current. Unlike a discrete fuse, the device provides retryable, programmable protection without service replacement.
Recommended
Body Control Module (BCM) Load Drivers
In body control modules, the TPS4H000AQPWPRQ1 drives multiple resistive and inductive loads - relays, small motors, heaters, solenoids - from a single quad-channel IC, cutting board area versus four discrete switches. The 40-V rating covers automotive 12-V transients, while the internal charge pump drives the NMOS channels from one supply. The per-channel current-sense output enables intelligent load management: the microcontroller can detect stuck relays, broken harnesses, or stalled actuators through the diagnostic reporting. Designers should size the current-limit resistor per channel to match each load type, and use the exposed power pad of the HTSSOP-20 package to conduct the I² × 1-Ω conduction losses into the PCB ground plane for thermal margin.
Recommended
Industrial 24-V PLC I/O Modules
For industrial programmable logic controller (PLC) output modules, the TPS4H000AQPWPRQ1 provides protected switching of 24-V sensor and actuator loads. Although automotive qualified, its 40-V rating and adjustable current limit map directly to industrial 24-V rails with headroom for surge events. The four independent channels allow one device to serve four PLC output points, and the high-accuracy current-sense output supports diagnostic functions demanded by industrial safety standards, such as short-circuit and open-wire detection. Firmware can poll the A-version diagnostic reporting to log faults per channel. Thermal layout with a solid exposed-pad connection keeps junction temperature in check at continuous multi-channel loads.
Recommended
Heaters and Resistive Load Management
Resistive loads such as seat heaters, mirror heaters, and small industrial heating elements benefit from the TPS4H000AQPWPRQ1's combination of switch integration and diagnostics. The adjustable current limit accommodates the cold-resistance inrush characteristic of PTC heating elements at startup, while the current-sense output gives the controller a live measurement of heater current that can be used for closed-loop temperature estimation without an external shunt. Each of the four channels independently monitors its load through the A-version diagnostics, flagging open heaters or wiring faults. Because heater conduction is continuous, thermal design around the 1000-mΩ on-resistance is critical: place generous copper under the HTSSOP-20 power pad and verify junction temperature at maximum duty cycle.
Recommended
Relay and Solenoid Driving
Inductive loads such as relays and solenoids impose both inrush and turn-off energy challenges that the TPS4H000AQPWPRQ1 addresses. The external adjustable current limit bounds the magnetizing inrush, and the fully protected channel architecture tolerates the fault conditions inductive loads create. The current-sense output verifies pull-in current, allowing the controller to detect welded or failed relays through the diagnostic reporting. Place each channel close to its relay coil and provide a PCB layout with a low-inductance ground return through the exposed power pad. At 1000 mΩ per channel, verify that holding-current conduction losses do not push the die beyond thermal limits during continuous solenoid operation in high ambient temperatures.
Recommended
Smart Fuse / eFuse Load Protection
The TPS4H000AQPWPRQ1 serves as an electronic fuse replacing blade fuses in distributed load protection architectures. The external adjustable current limit functions as a programmable fuse threshold, reacting far faster than a melting-wire fuse and eliminating vehicle service after a fault event. The high-accuracy current-sense output streams per-channel load current to the controller, enabling predictive diagnostics such as rising-current wear detection on actuators. Four channels per device reduce the component count of smart junction boxes. Because no cross-brand pin-to-pin equivalents are documented, TI family members (A/B versions) are the substitution path; firmware must match the chosen diagnostic-reporting variant during design-in.
Recommended
Recommended Products Summary
Engineering reference data for TPS4H000AQPWPRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS4H000BQPWPRQ1 | TPS4H160BQPWPRQ1 |
|---|---|---|---|
| Package | HTSSOP-20 (PWP) with power pad | HTSSOP-20 (PWP) - same | HTSSOP-20 (PWP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Maximum Input Voltage | 40 V | 40 V | 40 V |
| Channels | 4 | 4 | 4 |
| Channel On-Resistance | 1000 mΩ | 1000 mΩ | 160-mΩ class (lower RDS(on)) |
| Diagnostic Reporting Version | A version | B version | B version |
| Automotive Qualification | AEC-Q100 (Q1) | AEC-Q100 (Q1) | AEC-Q100 (Q1) |
| Adjustable Current Limit | Yes (external) | Yes (external) | Yes (external) |
Key Differentiators
- Quad-channel integration in one package (vs Single-channel high-side switches)
- A-version diagnostic reporting (vs TPS4H000BQPWPRQ1)
- Adjustable current limit (vs Fixed-limit load switches)
Design Notes
Each channel integrates a 1000-mΩ NMOS FET, so conduction loss per channel is I² × 1 Ω. Estimated: at 0.75 A continuous per channel on all four channels, total dissipation is approximately 2.25 W (4 × 0.75² × 1 Ω). The HTSSOP-20 exposed power pad must be soldered to a substantial ground copper area; verify junction temperature at maximum duty cycle and worst-case ambient using the thermal metrics in the TI datasheet.
Do not mix A-version and B-version diagnostic reporting in one firmware build without verifying the reporting scheme - the TPS4H000-Q1 family ships two versions with different diagnostic formats, and A/B parts are otherwise pin-identical. Confirm the marking before programming fault-handling code, since an A/B mismatch causes incorrect open-load and fault interpretation rather than a hard failure.
Place the current-limit setting resistor close to the device and route the current-sense feedback line away from switching load currents to preserve the high-accuracy current-sense measurement. Provide a low-inductance ground return through the exposed pad, and keep per-channel output traces sized for the set current limit. Add input bulk capacitance at the supply pin to absorb inrush events when multiple channels start simultaneously.
Compliance Information
Q1 suffix confirms AEC-Q100 automotive qualification. RoHS/REACH/lead-free status per TI product page was not captured in the retrieved data.
