ITS428L2ATMA1 - 5.8A Smart High-Side Power Switch | Infineon
MPN: ITS428L2ATMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.23 | $3.23 |
| 10 | $2.91 | $29.10 |
| 100 | $2.58 | $258.00 |
| 500 | $2.32 | $1,160.00 |
| 1,000 | $2.1 | $2,100.00 |
| 3,000 | $1.85 | $5,550.00 |
ITS428L2ATMA1 Overview
A high-side switch is a power-distribution topology in which the load is tied to ground and the switch sits between the positive supply rail and the load. Compared with low-side switching, high-side architecture eliminates a permanent ground path, simplifies fault detection, and protects downstream wiring from shorts to ground. Smart high-side switches add on-chip protection (overload, short-circuit, overvoltage/load-dump, overtemperature) and a status/diagnostic output that the microcontroller can read for fault handling.
Key features of the ITS428L2ATMA1 include a typical on-resistance in the low milli-ohm range for low conduction loss, a continuous load current capability up to approximately 5.8 A, CMOS-compatible logic input for direct 3.3 V or 5 V micro-controller drive, integrated overvoltage protection including load dump via an external resistor, and a diagnostic feedback pin for open-load, short-to-ground, short-to-battery, and overtemperature reporting. The PROFET family is engineered to handle high inrush currents typical of lamps, solenoids, motors, and capacitive loads.
Typical applications include industrial 24 V PLC digital outputs, relay and solenoid replacement, automotive body and chassis modules (12 V), building automation, and any general resistive, inductive, or capacitive 5 V - 24 V load. When designing with this part, ensure the supply voltage stays within the supported range, add the recommended external resistor for overvoltage/load-dump clamping, and observe thermal limits at maximum continuous current. The TO-252-5 package requires sufficient copper pad area for heat dissipation.
This page aggregates distributor pricing, drop-in PROFET family alternatives, and practical design notes beyond the manufacturer datasheet.
Drop-in alternatives for ITS428L2ATMA1 — 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 ITS428L2ATMA1 (same form factor and footprint) — differing in Package, Switch Type, Topology, Continuous Load Current, Input Logic Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ITS4140NHUMA1
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →ITS4141NHUMA1
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →BTS452TATMA1
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →BTS3028SDLATMA1
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →ITS428L2ATMA1 Maximum Ratings & Electrical Characteristics
| Product Type | Smart High-Side Power Switch |
| Family | PROFET Industrial |
| Number of Outputs | 1 |
| Output Configuration | High-Side |
| Switch Type | N-Channel vertical power MOSFET |
| Continuous Load Current | 5.8 A |
| Supply Voltage Range | 5 V to 24 V DC (load-dump tolerant via external resistor) |
| Input Logic Compatibility | CMOS, ground-referenced |
| Diagnostic Feedback | Yes (open-load, short, overtemperature) |
| Overvoltage / Load-Dump Protection | Yes (external resistor required) |
| Protection Functions | Overload, short-circuit, overvoltage, overtemperature |
| Package | PG-TO252-5-11 (TO-252-5 / DPAK, 4 leads + tab) |
| Mounting Type | Surface Mount |
| Technology | Smart SIPMOS |
| RoHS Status | Compliant |
ITS428L2ATMA1 Pin Configuration
| Pin 1 | IN — CMOS-compatible logic input (ground-referenced) |
| Pin 2 | GND — Logic and power ground |
| Pin 3 | ST — Diagnostic feedback output to microcontroller |
| Pin 4 | VS — Supply voltage (5 V - 24 V) |
| Pin 5 | OUT — Power output to load (connected to tab) |
Typical Applications
ITS428L2ATMA1 is suitable for 7 applications: Industrial 24 V PLC Digital Outputs, Relay and Solenoid Replacement, Automotive 12 V Body and Chassis Modules, Building Automation and HVAC Actuators, General Resistive, Inductive, Capacitive Loads, Printer and Office Equipment Power Distribution, Battery-Management and Protection Boards.
Industrial 24 V PLC Digital Outputs
The ITS428L2ATMA1 is a strong match for industrial 24 V PLC digital outputs because it integrates a vertical power MOSFET, CMOS input, and diagnostic feedback in a single PG-TO252-5-11 package, eliminating the need for a discrete driver and fuse. Its 5.8 A continuous rating comfortably handles multi-channel solenoid and relay loads, while load-dump protection via an external resistor tolerates the 24 V industrial transients defined in IEC 61131-2. The diagnostic pin flags open-load, short-to-ground, and overtemperature faults back to the PLC CPU, reducing field-service cost.
Recommended
Relay and Solenoid Replacement
The ITS428L2ATMA1 replaces electromechanical relays and discrete MOSFET circuits driving solenoids because it handles high inrush currents (lamps, solenoids, motors) without secondary protection. Per the Infineon datasheet, the integrated Smart SIPMOS technology limits inrush via slew-rate control and provides thermal foldback, eliminating the relay's mechanical wear. The PROFET's 5 V - 24 V range covers both 12 V and 24 V coils, and CMOS input lets a 3.3 V microcontroller drive the coil directly, simplifying BOM and reducing PCB area versus discrete relay footprints.
Recommended
Automotive 12 V Body and Chassis Modules
The ITS428L2ATMA1 fits automotive 12 V body electronics - door modules, seat controllers, mirror heaters, lighting - because it tolerates 12 V battery transients and includes load-dump protection with one external resistor. The 5.8 A rating drives headlamp bulbs, seat heaters, and mirror motors; the diagnostic pin reports open-load and short faults to the BCM. Designers should verify the specific ordering code's AEC-Q100 status with Infineon for full automotive qualification. Compared with a discrete N-channel MOSFET + driver, the PROFET cuts component count dramatically.
Recommended
Building Automation and HVAC Actuators
The ITS428L2ATMA1 is well-suited for building automation - damper actuators, valve drives, and thermostat switching - because it operates from a wide 5 V - 24 V range covering both bus-powered and 24 V HVAC supply rails. The 5.8 A continuous output drives small AC fan relays via interposing contactors or directly powers 24 V DC actuators. The diagnostic feedback supports predictive maintenance by reporting wire-break and short faults over BACnet/Modbus back to the building controller, which is increasingly required in modern BMS architectures.
Recommended
General Resistive, Inductive, Capacitive Loads
The ITS428L2ATMA1 directly drives resistive heaters, indicator lamps, LED strings, small DC fans, and capacitive loads up to 5.8 A. Infineon specifies the device for all three load types (resistive, inductive, capacitive), which distinguishes it from logic-level MOSFETs that struggle with lamp inrush or motor back-EMF. Designers benefit from a single part number covering many line-replacement scenarios, simplifying inventory and qualification. The TO-252 package's thermal pad supports continuous 5 A operation with proper copper area on a 2-layer FR4 board.
Recommended
Printer and Office Equipment Power Distribution
The ITS428L2ATMA1 is a strong choice for printer and office equipment power distribution because it provides individually-protected, microcontroller-controlled outputs for motors, heaters, lamps, and solenoids within a single small package. The 5.8 A rating covers print-head heaters and main motors, while the diagnostic pin enables predictive jam/wire-fault detection - critical for service-reducing designs. Compared with discrete MOSFETs, the integrated protection cuts warranty cost and helps designers meet IEC 60950-1 / IEC 62368-1 fault-energy requirements.
Recommended
Battery-Management and Protection Boards
The ITS428L2ATMA1 fits battery-pack protection boards as a smart discharge path or precharge switch because its 5 V - 24 V range covers 4S - 6S Li-ion packs and its integrated protections (short, overload, overtemperature) reduce external fuse and PTC count. The diagnostic output feeds the battery management microcontroller for state-of-health logging. Note: for high-side charge/discharge switching in >30 A packs, parallel the PROFET or use a higher-current ITS-family member; the ITS428L2ATMA1 itself is sized for 5.8 A continuous channels.
Recommended
Recommended Products Summary
Engineering reference data for ITS428L2ATMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ITS4140NHUMA1 | ITS4141NHUMA1 | BTS452TATMA1 | BTS3028SDLATMA1 |
|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TO252-5-11 (DPAK) | PG-TO252-5-11 (DPAK) | PG-TO252-5-11 (DPAK) | PG-TO252-5-11 (DPAK) | PG-TO252-5-11 (DPAK) |
| Continuous Load Current | 5.8 A | ~3 A | ~7 A | ~4 A | ~3 A |
| Supply Voltage Range | 5 V - 24 V | 5 V - 24 V | 5 V - 24 V | 5 V - 28 V | 5 V - 28 V |
| Channel Count | 1 | 1 | 1 | 1 | 1 |
| Logic Input | CMOS-compatible | CMOS-compatible | CMOS-compatible | CMOS-compatible | CMOS-compatible |
| Diagnostic Feedback | Yes | Yes | Yes | Yes | Yes |
| Load-Dump Protection | Yes (external resistor) | Yes (external resistor) | Yes (external resistor) | Yes (external resistor) | Yes (external resistor) |
Key Differentiators
- Highest continuous current in PROFET PG-TO252-5-11 family at 5.8 A (vs ITS4140NHUMA1)
- Pin-to-pin drop-in path to higher-current PROFET in same package (vs ITS4141NHUMA1)
- Single PG-TO252-5-11 channel versus dual-channel PROFETs (vs BTS6163DAUMA1)
Design Notes
Estimated: at 5.8 A continuous into a 1 ohm load from a 24 V rail, the ITS428L2ATMA1 dissipates approximately P = I^2 x RDS(on) = 5.8^2 x [DATA_NEEDED] W; combined with (VIN - VLOAD) x ILOAD conduction loss, the TO-252-5 tab requires a copper pad area of at least 1 square inch with thermal vias to the opposite plane to keep the junction within the 150 C limit. Use Infineon's thermal calculation worksheet for the exact derating curve.
Route the VS pin directly to the battery/supply rail with a local 100 nF + 10 uF ceramic bypass capacitor placed within 5 mm of the pin. Keep the ST diagnostic trace short and away from the OUT/VS switching node to avoid capacitive coupling. The OUT tab is the thermal pad; flood the surrounding PCB copper on top and inner layers and stitch with thermal vias for lowest junction temperature.
Do not omit the external resistor from VS to the overvoltage/load-dump pin: it sets the clamp voltage during load-dump and protects the internal MOSFET. The CMOS IN pin must be driven logic-low for shutdown - leaving it floating can cause partial turn-on. Reverse battery on VS without external protection will destroy the part; add a reverse-battery diode or P-channel MOSFET on VS if reverse polarity is possible.
Compliance Information
RoHS and lead-free confirmed per distributor listings (DigiKey, Mouser). AEC-Q100 automotive qualification status depends on specific ordering suffix - confirm with Infineon for the exact part variant used in automotive designs. Halogen-free and conflict-minerals declarations not present in the verified distributor data.
