AUIPS7091GTR - 1.5A Automotive High-Side Switch | Infineon
MPN: AUIPS7091GTR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.65 | $1,650.00 |
Drop-in alternatives for AUIPS7091GTR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AUIPS7091G
β Drop-Inπ Reference alternative (not in catalog)
IPS7071GTRPBF
β Drop-Inπ Reference alternative (not in catalog)
AUIPS7142GTR
β Drop-Inπ Reference alternative (not in catalog)
AUIPS1052GTR
β Drop-Inπ Reference alternative (not in catalog)
BTS50301EJAXUMA1
β Drop-Inβ In Stock
$2.2 / Unit
View Datasheet βAUIPS7091GTR Maximum Ratings & Electrical Characteristics
| Function | High-Side Switch / Load Driver |
| Topology | High-Side, N-Channel MOSFET |
| Number of Outputs | 1 |
| Output Configuration | High-Side |
| Continuous Output Current | 1.5 A |
| On-Resistance (Rds_on, typical) | 100 mOhm |
| Supply Voltage (Vbat) | 6 V to 35 V |
| Minimum Operating Voltage | 5.5 V |
| Load Dump Protection | 35 V (active clamp) |
| Enable Input | Active-low (Logic level) |
| Diagnostic Output | Analog current sense (IS pin) |
| Protection Features | Over-current, Over-temperature, Over-voltage, Reverse-battery |
| Operating Temperature | -40C to +150C (junction) |
| Package | PG-DSO-8 (8-SOIC with thermal pad) |
| Mounting Type | Surface Mount |
| MSL Level | MSL2 (1 year floor life) |
| Qualification | Automotive grade (Infineon AUIPS family) |
AUIPS7091GTR Pin Configuration
| Pin 1 | OUT β Switched output to load |
| Pin 2 | GND β Logic and power ground |
| Pin 3 | IS β Analog current-sense output |
| Pin 4 | IN β Logic input / enable (active-low) |
| Pin 5 | Vbat β Battery supply input (6V to 35V) |
| Pin 6 | NC β Not connected (per datasheet) |
| Pin 7 | NC β Not connected (per datasheet) |
| Pin 8 | TAB β Exposed thermal pad - tie to Vbat/GND per datasheet |
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
AUIPS7091GTR is suitable for 6 applications: Automotive Solenoid and Valve Drivers, Automotive Relay Replacement, LED Lighting Module Driver, Industrial 24V PLC Output Module, Small DC Motor Control (H-Bridge Half-Bridge), Truck / Bus 24V Load Management.
Automotive Solenoid and Valve Drivers
The AUIPS7091GTR directly drives automotive 12V inductive loads such as transmission shift solenoids, EVAP purge valves, and HVAC mode doors with up to 1.5 A continuous current. The 100 mOhm Rds(on) minimizes conduction loss while the integrated active over-voltage clamp absorbs the 35 V load-dump transients common in 12V automotive systems. The on-chip current-mirror sense output allows ECU firmware to detect stuck-open, stuck-closed, and short-circuit fault conditions without a separate shunt resistor, replacing legacy relay+fuse combinations with a single solid-state path. The active-low enable input interfaces directly with 3.3V or 5V MCU GPIOs for PWM speed control of proportional solenoids.
Recommended
Automotive Relay Replacement
The AUIPS7091GTR serves as a silent, microsecond-speed replacement for electromechanical automotive relays in body-control modules, where its 1.5 A rating covers most lighting and small-motor coil currents. Solid-state switching eliminates contact bounce and arcing, extending module MTBF to the IC's automotive lifetime rating while enabling PWM dimming that mechanical relays cannot support. The 100 mOhm Rds(on) ensures that voltage drop across the switch remains below 150 mV at full load, preserving the 12V supply margin for downstream bulbs or motors. Integrated reverse-battery protection removes the need for an external blocking diode, reducing PCB area and BOM cost per relay position.
Recommended
LED Lighting Module Driver
The AUIPS7091GTR powers automotive interior and exterior LED modules - daytime running lights, brake-light segments, and interior backlighting - with controlled rise/fall times that minimize EMI without external snubbers. The 100 mOhm Rds(on) and 1.5 A capability comfortably drive 4-8 high-brightness LED strings in parallel from the 13.8 V nominal 12V bus with PWM dimming from the MCU enable pin. The device's analog current-sense output allows closed-loop thermal monitoring of the LED array, helping designers detect early-stage LED degradation. The PG-DSO-8 exposed-pad package dissipates the 0.2-1 W typical LED-driver losses on a small copper pour without an external heatsink.
Recommended
Industrial 24V PLC Output Module
In industrial 24V PLC digital output modules, the AUIPS7091GTR switches 24V DC field loads up to 1.5 A per channel with full short-circuit and over-temperature protection required by IEC 61131-2. The 35 V absolute maximum rating handles the 24V industrial common-mode transient events specified in IEC 61000-4-2 and related standards, replacing bulky mechanical relays with silent, fast-switching solid-state outputs. The analog current-sense output reports load current back to the PLC backplane for open-load detection during commissioning and runtime diagnostics. The PG-DSO-8 footprint allows channel densities comparable to legacy 5 mm-pitch electromechanical relay sockets.
Recommended
Small DC Motor Control (H-Bridge Half-Bridge)
Two AUIPS7091GTR devices form the high-side switches of a half-bridge H-bridge that controls small 12V brushed DC motors such as window lift, mirror adjust, and seat-position actuators. The 1.5 A continuous rating covers most sub-50W motor loads, and the active-low enable pin supports complementary PWM at audio-band frequencies for quiet operation. Reverse-battery protection on each device prevents catastrophic failure if the harness is mis-wired during service. The integrated current sense allows stall detection by the MCU, enabling jam-protection firmware that retracts the motor within milliseconds.
Recommended
Truck / Bus 24V Load Management
The AUIPS7091GTR's 35 V load-dump rating makes it directly suited to 24V commercial-vehicle (truck, bus, construction equipment) body-electronics loads such as marker lamps, solenoid valves, and small motor actuators. At the nominal 28V truck supply, the 100 mOhm Rds(on) and 1.5 A capability cover most loads with sub-5% voltage drop, while the on-chip over-voltage clamp absorbs the ISO 7637-2 24V transient pulse events. The -40C to +150C junction temperature rating covers under-hood and chassis-mounted enclosures in commercial-vehicle applications.
Recommended
Recommended Products Summary
Engineering reference data for AUIPS7091GTR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AUIPS7091G | IPS7071GTRPBF | AUIPS7142GTR | AUIPS1052GTR | BTS50301EJAXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-DSO-8 | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same |
| Continuous Output Current | 1.5 A | 1.5 A | 1.5 A | 1.5 A | 1.5 A | 0.4 A |
| On-Resistance (Rds_on) | 100 mOhm (typ) | 100 mOhm | 100 mOhm | [DATA_NEEDED] | [DATA_NEEDED] | 300 mOhm |
| Supply Voltage (Vbat) | 6 V to 35 V | 6 V to 35 V | 6 V to 35 V | 6 V to 35 V | 6 V to 35 V | 6 V to 28 V |
| Topology | High-side | High-side | High-side | High-side | Low-side | High-side |
| Automotive Grade | Yes (AUIPS) | Yes (AUIPS) | No (IPS) | Yes (AUIPS) | Yes (AUIPS) | Yes (PROFET) |
| Diagnostic Current Sense | Yes (IS pin) | Yes (IS pin) | Yes (IS pin) | Yes (IS pin) | Yes | Yes (IS pin) |
| Reverse-Battery Protection | Yes (integrated) | Yes | Limited | Yes | Yes | Yes |
Key Differentiators
- Full automotive load-dump and reverse-battery protection (vs IPS7071GTRPBF)
- Analog current-sense output for closed-loop diagnostics (vs AUIPS1052GTR (low-side))
- 1.5 A continuous rating in compact PG-DSO-8 footprint (vs BTS50301EJAXUMA1 (0.4 A class))
Design Notes
At 1.5 A continuous load and 100 mOhm Rds(on), the AUIPS7091GTR dissipates approximately 0.225 W in steady state, with junction temperature rise depending on PCB copper area. The PG-DSO-8 exposed thermal pad MUST be soldered to a copper pour of at least 1 square inch to achieve the rated thermal performance. For 1 A average loads in 12V automotive environments, no additional heatsink is required. Derate the load current at elevated ambient temperatures above 85 C to keep the junction below the 150 C thermal shutdown threshold.
Place the Vbat decoupling capacitor (1 uF to 10 uF X7R ceramic) within 5 mm of the Vbat pin to suppress inductive transient ringing. The IS (current-sense) trace should be routed as a short, guarded analog trace away from the OUT and Vbat switching traces to minimize capacitive coupling. The exposed thermal pad should be tied to the Vbat copper pour (not GND) on the top layer for best thermal spreading. Avoid routing logic signals directly under the OUT pin to prevent coupling into sensitive analog IS sensing.
Do not omit the external pull-up resistor on the IS pin - without it the current-sense output floats and diagnostic reads are unreliable. Ensure the IN pin is pulled HIGH (logic-high) for the OFF state because the AUIPS7091GTR uses an active-low enable; floating the IN pin may cause undefined behavior. Verify the load inductance is below the IC's clamp rating - sustained inductive flyback above the active clamp rating can damage the part. Finally, do not exceed the 35 V load-dump maximum even briefly; transient events beyond this stress the over-voltage clamp beyond its rated energy absorption.
Compliance Information
AUIPS (Automotive Intelligent Power Switch) family per Infineon. AEC-Q100 qualified for automotive applications. RoHS/REACH compliant per distributor listing data.
