ITS4040DEPDXUMA1 - 40mΩ Dual Smart High-Side Switch | Infineon
MPN: ITS4040DEPDXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.68 | $3.68 |
| 10 | $3.31 | $33.10 |
| 100 | $2.95 | $295.00 |
| 500 | $2.64 | $1,320.00 |
| 1,000 | $2.36 | $2,360.00 |
| 3,000 | $2.12 | $6,360.00 |
Drop-in alternatives for ITS4040DEPDXUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →ITS4040DEPDXUMA1 Maximum Ratings & Electrical Characteristics
| Product Type | Dual-Channel Smart High-Side Power Switch (PROFET) |
| Topology | 1:1 High-Side (N-Channel MOSFET, two channels) |
| Number of Channels | 2 (independent) |
| Operating Voltage Range | -0.3 V to 45 V (load-dump tolerant) |
| Typical On-State Resistance per Channel (RDS(ON)) | 60 mΩ at TJ = 125 °C |
| Continuous Load Current per Channel | >2 A |
| Combined Peak Capability | 4.1 A (per datasheet summary) |
| Per-Channel Current Limit (typ.) | 2.6 A |
| On/Off Input Interface | Logic-level GPIO compatible (3.3 V / 5 V) |
| Diagnostic Output | Current-sense (IS) pin, proportional to load current |
| Integrated Protection | Over-current, over-voltage, over-temperature, short-to-ground, short-to-battery, reverse battery |
| Package | PG-TSDSO-14 (exposed pad) |
| Mounting Type | Surface Mount |
| Operating Temperature (TJ) | -40 °C to +150 °C (typical automotive PROFET range) |
| RoHS Status | Compliant |
ITS4040DEPDXUMA1 Pin Configuration
| Pin 1 | OUT1 — Channel 1 load output (drain of internal N-channel MOSFET) |
| Pin 2 | VS — Supply voltage (battery / 24V rail) |
| Pin 3 | IN1 — Channel 1 logic input (active-high enable, 3.3V/5V compatible) |
| Pin 4 | IS1 — Channel 1 current-sense diagnostic output (analog current proportional to load) |
| Pin 5 | GND — Ground |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | IN2 — Channel 2 logic input (active-high enable, 3.3V/5V compatible) |
| Pin 8 | IS2 — Channel 2 current-sense diagnostic output |
| Pin 9 | VS — Supply voltage (second pin for improved current handling) |
| Pin 10 | OUT2 — Channel 2 load output (drain of internal N-channel MOSFET) |
| Pin 11 | VS — Supply voltage (third pin) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | NC — Not connected (per datasheet) |
| Pin 14 | VS — Supply voltage (fourth pin) |
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
ITS4040DEPDXUMA1 is suitable for 6 applications: Automotive 24V Body & Chassis ECU Load Driving, 48V Mild-Hybrid Vehicle Load Switching, Industrial 24V PLC Digital Output Modules, 24V LED Lighting Modules & Drivers, HVAC & Refrigeration Solenoid / Valve Drivers, 24V Relay & Contactor Coil Drivers.
Automotive 24V Body & Chassis ECU Load Driving
The ITS4040DEPDXUMA1 is purpose-built for 24V truck and 12V/24V passenger-car body and chassis ECUs that switch resistive, capacitive, and inductive loads such as lamps, door-lock motors, mirror heaters, and seat-adjust solenoids. The 40 mΩ per-channel RDS(ON) keeps conduction loss below 200 mW even at 2 A continuous load, allowing two channels to run in parallel or drive two loads simultaneously from a single 24V rail without exceeding thermal limits on a 1 square-inch copper pour. Integrated ISO 7637-2 load-dump tolerance up to 45V eliminates external TVS diodes. Engineers use the IS diagnostic pin to feed current-sense information back to the MCU for lamp-outage detection and load-health monitoring, which is required for FMVSS and ECE-R7 compliance in automotive lighting.
Recommended
48V Mild-Hybrid Vehicle Load Switching
48V mild-hybrid systems (MHEV) require protected high-side switches rated above conventional 12V/24V rails. The ITS4040DEPDXUMA1's 45V absolute-maximum operating voltage covers 48V nominal plus transient excursions during regenerative braking and load dump. Two channels can drive belt-driven starter-generator auxiliary loads, electric turbo wastegate actuators, or active suspension valves. The exposed-pad PG-TSDSO-14 package achieves the low thermal resistance needed to dissipate heat in the confined underhood environment. Reverse-battery and short-to-battery protections are particularly important in 48V architectures where mis-wiring during service can otherwise destroy the switch. The current-sense (IS) output enables predictive maintenance by reporting load current trend to the vehicle's 48V domain controller.
Recommended
Industrial 24V PLC Digital Output Modules
Industrial PLC digital output modules driving 24V solenoids, indicator lamps, relay coils, and pneumatic valve actuators benefit directly from the ITS4040DEPDXUMA1's dual-channel integration. The 40 mΩ on-resistance per channel means the high-side switch can source 2A continuously at 24V with less than 100mW of conduction loss per channel, eliminating the need for external heatsinking. The exposed-pad PG-TSDSO-14 package mounts on standard 24V PLC board copper pours. The logic-level IN inputs interface directly to 3.3V or 5V MCU GPIOs without level shifters, simplifying module design. The IS sense pin enables per-channel load-current monitoring for predictive maintenance and broken-wire detection in field-mounted I/O modules, reducing troubleshooting time on the plant floor.
Recommended
24V LED Lighting Modules & Drivers
24V architectural, signage, and automotive LED lighting modules use the ITS4040DEPDXUMA1's two independent high-side channels to drive separate LED strings with PWM dimming control from an MCU. The fast switching capability and current-sense diagnostic enable closed-loop brightness regulation and individual string fault detection (open-circuit LED or short-to-ground), critical for safety-critical lighting such as emergency exits and automotive tail lamps. The 45V load-dump tolerance handles automotive 24V transients, while the wide operating temperature range supports outdoor and underhood LED installations. Designers can multiplex two LED zones per IC, halving the component count versus discrete MOSFET designs.
Recommended
HVAC & Refrigeration Solenoid / Valve Drivers
The ITS4040DEPDXUMA1 drives 24V HVAC and refrigeration solenoid valves, reversing valves, and water-valve actuators where dual-channel independent control simplifies board layout. The integrated over-current and short-circuit protections are essential in refrigeration systems where liquid slugging can momentarily stall a compressor valve motor and draw stall current. The reverse-battery protection allows direct connection to 24V battery-backed systems. The exposed-pad PG-TSDSO-14 package dissipates heat through the system chassis copper, suitable for sealed refrigeration enclosures where active cooling is impractical. IS diagnostics report valve health to the appliance controller, enabling predictive service before catastrophic valve failure.
Recommended
24V Relay & Contactor Coil Drivers
Electromechanical relays and contactors with 24V coils require the high inrush current handling that the ITS4040DEPDXUMA1's 2.6 A per-channel current limit and 4.1 A combined capability provide. Two channels can drive two independent relay coils from one IC, saving board space in junction boxes, motor starters, and industrial control panels. The exposed-pad package handles the brief thermal stress during relay coil energization without overheating. The integrated flyback clamping protects the switch from the inductive kick when the relay de-energizes, eliminating the discrete freewheeling diode typically required across relay coils. Logic-level inputs connect directly to 3.3V MCU GPIOs, simplifying PCB layout versus opto-isolated relay driver designs.
Recommended
Recommended Products Summary
Engineering reference data for ITS4040DEPDXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ITS4130QEPDXUMA1 | ITS4090QEPDXUMA1 | ITS4200SSJDXUMA1 | ITS4300SSJDXUMA1 | ITS724GFUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TSDSO-14 (exposed pad) | PG-TSDSO-14 - same | PG-TSDSO-14 - same | PG-TSDSO-14 - same | PG-TSDSO-14 - same | PG-DSO-20 - different |
| Number of Channels | 2 (dual) | 2 (dual) | 2 (dual) | 1 (single) | 1 (single) | 2 (dual) |
| Typical RDS(ON) per Channel | 40 mΩ (60 mΩ at TJ=125°C) | 130 mΩ | 90 mΩ | 200 mΩ | 200 mΩ | 200 mΩ |
| Per-Channel Current Limit (typ.) | 2.6 A | 1.5 A | 2 A | 1 A | 1 A | 1.3 A |
| Operating Voltage Range | -0.3 V to +45 V | -0.3 V to +45 V | -0.3 V to +45 V | -0.3 V to +45 V | -0.3 V to +45 V | -0.3 V to +45 V |
| Integrated Protection | OV/UV/OC/OT/SCG/SCB/RB | OV/UV/OC/OT/SCG/SCB/RB | OV/UV/OC/OT/SCG/SCB/RB | OV/UV/OC/OT/SCG/SCB/RB | OV/UV/OC/OT/SCG/SCB/RB | OV/UV/OC/OT/SCG/SCB/RB |
| Current-Sense Diagnostic (IS pin) | Yes (per channel) | Yes (per channel) | Yes (per channel) | Yes (single channel) | Yes (single channel) | Yes (per channel) |
| Automotive Qualified | Yes (AEC-Q100 PROFET family) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (legacy PROFET) |
Key Differentiators
- Lowest on-resistance in the dual-channel PROFET family (vs ITS4130QEPDXUMA1)
- Dual-channel integration saves PCB area versus single-channel PROFETs (vs ITS4200SSJDXUMA1 / ITS4300SSJDXUMA1)
- Full protection integration eliminates discrete protection circuitry (vs Discrete N-channel MOSFET + fuse + TVS + thermal cut-off design)
Design Notes
Estimated: at 2 A continuous per channel with VIN=24V and VOUT close to VS, conduction loss is P = I² × RDS(ON) = 4 × 0.060 = 0.24 W per channel (0.48 W total). PG-TSDSO-14 with a 1 square-inch 2 oz copper pour achieves θJA ≈ 50 °C/W, so junction temperature rise is roughly 24 °C above ambient - comfortably within the 150 °C limit. For 24V→12V linear regulation duty (rare in high-side switches but possible with external dropper), thermal dissipation rises to ~28 W at 2A which would exceed thermal limits and is NOT recommended. Always drive high-side switches as saturated switches (fully ON), not as linear regulators.
Solder the exposed thermal pad directly to a continuous top-layer copper pour on the PCB, with thermal vias (typically 9-16 vias, 0.3 mm drill, 1 mm pitch) connecting to an inner or bottom-layer copper plane. Place input decoupling (100 nF X7R ceramic) directly at the VS pin and a 10 µF bulk capacitor at the supply input. Keep the OUT traces wide (≥0.5 mm per ampere) and short to minimize parasitic inductance, which can cause ringing at turn-off with inductive loads. Maintain ≥1 mm clearance between the OUT high-voltage traces and adjacent low-voltage signal traces for 24V/48V creepage compliance.
Do not connect the IS (current-sense) pin directly to a 5V MCU ADC input without a series resistor - the IS pin is a current output, and a direct voltage connection can saturate the internal current mirror. Always de-bounce or RC-filter the IS pin when driving PWM loads, since the diagnostic current follows the switching and will report false fault events during PWM transitions. Do not exceed 45V on VS even transiently - the integrated over-voltage clamp will activate, but sustained over-voltage will thermally stress the die. Finally, verify that the IN logic-level inputs are not left floating; unused IN pins must be tied to GND through a 10 kΩ resistor to disable the channel and prevent partial-turn-on leakage.
The IS current-sense output has a typical bandwidth of ~10 kHz, sufficient for fault detection but not for high-speed PWM current control. For PWM-driven loads above 1 kHz switching frequency, sample the IS output with a low-pass RC filter (typ. 1 kΩ + 100 nF for fc ≈ 1.6 kHz) and ADC at 10x the PWM frequency to reconstruct the average load current. Place the IS trace away from the OUT high-current traces and the IN logic traces to avoid capacitive crosstalk. The IS output impedance is high (>10 kΩ), so use a guard ring or guard trace if the ADC input is more than 5 mm from the IS pin.
Compliance Information
AEC-Q100 qualified per Infineon PROFET family datasheet. RoHS and REACH compliant per Infineon product page and DigiKey/Mouser listings. Halogen-free per industry-standard PROFET family manufacturing.
