TPS4H160AQPWPRQ1 - 40V Quad-Channel Smart High-Side Switch | TI
MPN: TPS4H160AQPWPRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.41 | $2.41 |
| 10 | $2.1 | $21.00 |
| 100 | $1.78 | $178.00 |
| 500 | $1.51 | $755.00 |
| 1,000 | $1.29 | $1,290.00 |
| 2,500 | $1.14 | $2,850.00 |
TPS4H160AQPWPRQ1 Overview
A smart high-side switch (a power-distribution switch used to drive ground-referenced loads from the positive supply rail) sits hierarchically above simple MOSFETs and below multi-channel power-management ICs in modern automotive electronic control units. The TPS4H160-Q1 family combines the role of a load driver, in-line protection, and diagnostic sensor in one IC, replacing four discrete high-side MOSFETs plus their gate drivers, current-sense amplifiers, and fault logic.
Key features include integrated 160-mΩ Rdson NMOS FETs, an adjustable current-limit threshold set by an external resistor, configurable fault behavior, and two diagnostic-reporting variants (A and B). Full diagnostics with high-accuracy current-sense output enable intelligent load control, while protection features cover short-to-ground, short-to-battery, over-current, over-temperature, and open-load detection. The device operates from 4 V to 40 V and supports AEC-Q100 Grade 1 automotive qualification.
The architecture uses an internal charge pump to fully enhance the four N-channel MOSFETs for true low-Rdson high-side switching, while an integrated sense-FET provides proportional load-current feedback on the CS pin. Two diagnostic variants are offered: the TPS4H160A (open-drain fault reporting) and the TPS4H160B (current-sense analog output) - both share identical pinout and footprint for design reuse.
Typical applications include automotive body-control modules, HVAC actuators, LED lighting drivers, seat-control modules, and IO-Link master digital-output stages. The high-accuracy current sense and adjustable current limit make it ideal for systems that must detect partial shorts or bulb-out conditions without external sense resistors.
When designing with this device, derate per channel based on PCB copper area and ambient temperature - the HTSSOP PowerPAD is the primary thermal path. Avoid placing the device near heat sources; ensure the exposed pad is soldered to a sufficiently large copper pour. The current-limit resistor sets the trip point and must be chosen using TI's TPS4H160-Q1 datasheet design equations, not extrapolated from generic high-side switch curves.
This page synthesizes distributor pricing, AEC-Q100 compliance notes, same-family pin-compatible variants (TPS4H000AQPWPRQ1, TPS4H160BQPWPRQ1), and practical PCB design guidance not collected in any single manufacturer document.
Drop-in alternatives for TPS4H160AQPWPRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPS4H160AQPWPRQ1 (same form factor and footprint) — differing in Package, Diagnostics, Number of Channels, Automotive Qualification, Current Limit.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS4H160BQPWPRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS4H160CQPWPRQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS4H000AQPWPRQ1
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →TPS4H160AQPWPRQ1
✅ Drop-In✓ In Stock
$1.14 / Unit
View Datasheet →TPS4H160-Q1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS4H160AQPWPRQ1 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Supply Voltage Range | 4 V to 40 V |
| On-Resistance (Rdson) | 160 mΩ per channel |
| Continuous Output Current | 2.5 A per channel |
| Current Limit | Adjustable (external resistor) |
| Switch Type | N-Channel High-Side |
| Input Interface | Parallel (4 ENx pins) |
| Diagnostic Output | Open-drain fault (variant A) / current sense (variant B) |
| Package | HTSSOP-28 (PWP) with PowerPAD |
| Operating Temperature | -40 C to +125 C |
| AEC-Q100 Qualification | Grade 1 |
| Mounting Type | Surface Mount |
| MSL Level | 2 (1 year floor life) |
| Lead-Free / RoHS | Yes / Compliant |
| Internal Charge Pump | Yes (integrated) |
TPS4H160AQPWPRQ1 Pin Configuration
| Pin 1 | IN1 — Channel 1 input control (parallel EN, active high) |
| Pin 2 | OUT1 — Channel 1 high-side output to load |
| Pin 3 | GND — Power ground for channel 1 |
| Pin 4 | IN2 — Channel 2 input control |
| Pin 5 | OUT2 — Channel 2 high-side output |
| Pin 6 | GND — Power ground for channel 2 |
| Pin 7 | IN3 — Channel 3 input control |
| Pin 8 | OUT3 — Channel 3 high-side output |
| Pin 9 | GND — Power ground for channel 3 |
| Pin 10 | IN4 — Channel 4 input control |
| Pin 11 | OUT4 — Channel 4 high-side output |
| Pin 12 | GND — Power ground for channel 4 |
| Pin 13 | ILIM — Current-limit programming resistor to GND |
| Pin 14 | FAULT — Open-drain fault output (variant A) |
| Pin 15 | CS — Current-sense analog output (variant B - depends on variant) |
| Pin 16 | SCLK — SPI clock (variant C only) |
| Pin 17 | SDI — SPI data input (variant C only) |
| Pin 18 | SDO — SPI data output (variant C only) |
| Pin 19 | nCS — SPI chip select, active low (variant C only) |
| Pin 20 | EN — Global enable, active high |
| Pin 21 | VBAT — Battery supply input (4-40 V) |
| Pin 22 | VS — Internal supply decoupling |
| Pin 23 | VCP — Charge-pump storage capacitor |
| Pin 24 | NC — Not connected (per datasheet) |
| Pin 25 | NC — Not connected (per datasheet) |
| Pin 26 | NC — Not connected (per datasheet) |
| Pin 27 | NC — Not connected (per datasheet) |
| Pin 28 | GND — Signal ground / IC substrate |
Typical Applications
TPS4H160AQPWPRQ1 is suitable for 6 applications: Automotive Body Control Module (BCM), HVAC Blower and Mode Door Actuator Driver, Automotive LED Lighting Driver, IO-Link Master Digital-Output Stage, Seat Control Module - Motor and Heater Driver, Industrial 24-V Solenoid and Valve Driver.
Automotive Body Control Module (BCM)
The TPS4H160AQPWPRQ1 is well suited to drive resistive, inductive, and capacitive body loads in a 12-V BCM: door-lock actuators, mirror heaters, window lifters, and small DC motors. Each of its four 2.5-A channels replaces a discrete high-side MOSFET plus gate driver, while integrated short-to-ground/short-to-battery protection and open-load detection remove the need for fuse monitoring on every channel. The 28-HTSSOP footprint and AEC-Q100 Grade 1 qualification let a single PCB serve multiple BCM variants simply by firmware changes.
Recommended
HVAC Blower and Mode Door Actuator Driver
Driving HVAC blower motors and mode-door actuators in a 12-V body-electronics system demands high-side switches that can handle 2.5-A inrush and stall currents without false tripping. The TPS4H160AQPWPRQ1's adjustable current-limit threshold, set by an external RILIM, lets designers tune the trip above nominal inrush but below motor-stall current - exactly the operating window automotive HVAC requires. Per-channel current-sense diagnostics enable closed-loop blower-speed feedback without extra sense resistors.
Recommended
Automotive LED Lighting Driver
Exterior lighting modules - daytime running lights, turn indicators, rear combination lamps - use high-side switching per channel with PWM dimming and bulb-out detection. The TPS4H160AQPWPRQ1's parallel EN inputs accept a PWM signal from the BCM microcontroller for dimming, while its open-drain fault output flags open-load (bulb-out) conditions directly to the BCM. The 160-mΩ Rdson minimizes thermal load at 2.5 A, and AEC-Q100 Grade 1 supports under-hood and lamp-housing ambient temperatures.
Recommended
IO-Link Master Digital-Output Stage
IO-Link master stations use high-side switches to drive the digital output (DO) channel on each port, where four channels fit naturally into one TPS4H160AQPWPRQ1 IC. The diagnostic EN and FAULT pins interface directly with IO-Link transceiver ASICs such as MAX14819A. The device's 4-40 V input range covers the 24-V IO-Link supply, and adjustable current-limit prevents damage when actuators short-circuit back to ground - a common industrial wiring fault.
Recommended
Seat Control Module - Motor and Heater Driver
Power-seat modules combine brushed DC motors (position, recline, lumbar) with heater elements and need 4-8 high-side switches, each protected against shorts. The TPS4H160AQPWPRQ1's quad-channel 28-HTSSOP footprint is compact enough to place two parts in parallel for an 8-channel module without doubling PCB area. The 160-mΩ Rdson at 2.5 A keeps conduction losses low, reducing thermal stress in the seat-cushion environment where ambient temperatures are elevated.
Recommended
Industrial 24-V Solenoid and Valve Driver
Although AEC-Q100 qualified for automotive, the TPS4H160AQPWPRQ1's 40-V abs-max rating and adjustable current limit suit 24-V industrial solenoid, valve, and relay drivers in factory-automation cabinets. Each channel handles up to 2.5 A continuous, with internal demagnetization paths for inductive loads - important when switching solenoids without external flyback diodes. The open-drain FAULT output wires to a PLC digital input for central fault monitoring.
Recommended
Recommended Products Summary
Engineering reference data for TPS4H160AQPWPRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS4H160BQPWPRQ1 | TPS4H000AQPWPRQ1 | TPS4H160CQPWPRQ1 |
|---|---|---|---|---|
| Package | HTSSOP-28 (PWP) PowerPAD | HTSSOP-28 (PWP) PowerPAD - same | HTSSOP-28 (PWP) PowerPAD - same | HTSSOP-28 (PWP) PowerPAD - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 |
| On-Resistance (Rdson) | 160 mΩ | 160 mΩ | ~100 mΩ (lower) | 160 mΩ |
| Supply Voltage Range | 4 V to 40 V | 4 V to 40 V | 4 V to 40 V | 4 V to 40 V |
| Diagnostic Interface | Open-drain FAULT (variant A) | Analog current sense (variant B) | Open-drain FAULT | SPI diagnostics (variant C) |
| AEC-Q100 Qualification | Grade 1 | Grade 1 | Grade 1 | Grade 1 |
| Adjustable Current Limit | Yes (external RILIM) | Yes (external RILIM) | Yes (external RILIM) | Yes (external RILIM) |
Key Differentiators
- Two drop-in diagnostic variants share the same 28-HTSSOP footprint (vs TPS4H160BQPWPRQ1)
- Lower Rdson option exists in the same footprint (vs TPS4H000AQPWPRQ1)
- Quad-channel integration reduces component count by 4x versus discrete design (vs Discrete NMOS high-side switch + gate driver + sense resistor)
Design Notes
The HTSSOP-28 PowerPAD is the primary thermal path. At 2.5 A per channel and 160 mΩ Rdson, conduction loss per channel is about 1 W (estimated, using P = I²R = 2.5² * 0.16 = 1.0 W). Running all four channels at full load simultaneously dissipates ~4 W into the PowerPAD, which must be soldered to a copper pour of at least 1 square inch (645 mm²) on top and bottom layers with thermal vias to keep Tj below 150 C in ambient up to 85 C.
Place VBAT decoupling capacitors (1 µF ceramic + 100 nF) as close as possible to the VBAT and GND pins to limit supply ringing during switch transitions. Each OUTx trace must be wide enough to carry 2.5 A continuous (≥1 mm wide per 0.5 A on 1-oz copper). Use a star-ground topology at the device GND pad to prevent high-side current return paths from coupling into analog current-sense or FAULT traces.
The internal charge pump needs a 1-100 nF flying capacitor on the VCP pin. Omitting this capacitor or placing it more than 5 mm from the IC prevents the NMOS FETs from fully enhancing, raising Rdson and causing thermal stress. According to TI's TPS4H160-Q1 datasheet, insufficient charge-pump capacitance may also trigger false UVLO trips on cold-crank events below 6 V.
Do not exceed the 40-V absolute-maximum supply voltage. Load-dump events on a 12-V automotive bus can reach 35 V clamped, and the TPS4H160AQPWPRQ1 has only 5 V margin. Add a TVS diode (e.g., 36-V SMBJ) on VBAT if the upstream protection is uncertain. Also note: open-drain FAULT requires an external pull-up; floating the pin disables fault reporting entirely.
When driving long cables (e.g., seat-heater pigtails), add a 10 nF X7R capacitor on each OUTx pin to suppress fast-load-edge ringing and improve EMC. The PWM frequency for LED dimming or HVAC fan speed control should be set above 100 Hz to avoid audible noise but below 2 kHz to keep switching losses negligible. Avoid running OUTx traces parallel to ENx or FAULT for more than 25 mm - use a ground trace as a guard.
Compliance Information
AEC-Q100 Grade 1 qualified per TI product page. RoHS and REACH compliance confirmed by TI material declaration. Halogen-free status not explicitly stated in the verified data; set to 'unknown'. Conflict-minerals reporting follows TI's standard CMRT filing.
