ITS4300SSJDXUMA1 - 400mA Smart High-Side Switch | Infineon
MPN: ITS4300SSJDXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.4 | $140.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.02 | $1,020.00 |
| 2,500 | $0.89 | $2,225.00 |
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View Datasheet →ITS4300SSJDXUMA1 Maximum Ratings & Electrical Characteristics
| Part Number | ITS4300SSJDXUMA1 |
| Manufacturer | Infineon Technologies |
| Product Family | PROFET (PROtected FET) Industrial |
| Function | Smart high-side power switch / load driver |
| Switch Type | 1:1 N-Channel high-side |
| Output Current (Continuous) | 400 mA |
| On-State Resistance RDS(on) | 300 mΩ (typical) |
| Load Voltage | 12 V / 24 V DC applications |
| Control Interface | CMOS-compatible logic input |
| Protection Features | Overload, short-circuit, thermal shutdown with restart, overvoltage (load dump), undervoltage shutdown, fast demagnetization |
| ESD Protection | Yes |
| Package | PG-DSO-8 |
| Mounting Type | Surface Mount |
| Qualification | Industrial per JEDEC JESD47 |
| RoHS Compliance | Compliant (per Infineon product page) |
ITS4300SSJDXUMA1 Pin Configuration
| Pin 1 | OUT — Switched output to load |
| Pin 2 | IN — Logic control input (CMOS-compatible) |
| Pin 3 | GND — Ground reference |
| Pin 4 | Vs — Supply voltage (battery/rail) |
| Pin 5 | Vbb — Power stage supply (battery sense) |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | ST/DEN — Status / diagnostic output |
| Pin 8 | TAB — Exposed pad / heatsink (connect to GND or thermal copper) |
High-Side Switch Safe Operating Area
Typical Applications
ITS4300SSJDXUMA1 is suitable for 6 applications: Industrial Sensor Power Distribution, PLC Digital Output Modules, Automotive Body Electronics (12V Rails), Electromagnetic Relay Driver, IoT and Building Automation, Power Management for High-Side Switching with Low Standby Current.
Industrial Sensor Power Distribution
The ITS4300SSJDXUMA1 is ideal for powering 24 V industrial sensors (proximity, photoelectric, capacitive) in factory automation lines where each sensor draws under 100 mA. The device's 400 mA continuous rating comfortably handles multi-sensor loads, while its 300 mΩ typical RDS(on) minimizes voltage drop to ensure sensors receive full supply voltage. The integrated short-circuit and thermal protections prevent field failures from wiring shorts, a common occurrence in industrial environments. Engineers typically place the ITS4300S between the 24 V rail and the sensor harness, with the CMOS input driven directly by a PLC digital output. This eliminates the need for external fuses and diagnostic resistors that would otherwise increase BOM count.
Recommended
PLC Digital Output Modules
Programmable logic controller (PLC) digital output cards use the ITS4300SSJDXUMA1 to switch 24 V DC loads such as indicator lamps, solenoid valves, and small relays. The device's CMOS-compatible input connects directly to the PLC's 3.3 V or 5 V logic output without level shifters, simplifying the output stage design. Its fast demagnetization circuit safely handles the inductive kickback of relay coils and solenoid valves, eliminating the need for external freewheeling diodes. The built-in overcurrent and thermal protections provide per-channel fault isolation, critical for maintaining system availability when a single output faults. The PG-DSO-8 package fits the high-density PCB layouts typical of multi-channel PLC cards.
Recommended
Automotive Body Electronics (12V Rails)
In 12 V automotive body electronics, the ITS4300SSJDXUMA1 drives resistive loads such as LED interior lighting, small heating elements, and dashboard indicator lamps. The integrated load-dump overvoltage protection handles the transient surges common in automotive electrical environments when the alternator load is suddenly disconnected. The 400 mA continuous rating suits the lower-current body electronics loads, while the CMOS-compatible logic input interfaces directly with body control module (BCM) microcontrollers. Fast demagnetization safely switches inductive loads like small relays, and the thermal shutdown with auto-restart prevents permanent damage during prolonged short-circuit conditions. Designers can replace discrete MOSFET-plus-fuse circuits with this single IC.
Recommended
Electromagnetic Relay Driver
The ITS4300SSJDXUMA1 directly drives small electromagnetic relays with coil currents up to 400 mA, replacing discrete BJT/MOSFET driver circuits. The fast demagnetization circuit absorbs the relay coil's inductive kickback when the switch turns off, protecting the device from avalanche breakdown. The CMOS input allows direct connection to microcontroller GPIO pins, simplifying firmware-controlled relay sequencing. The integrated short-circuit and thermal protections guard against wiring faults and coil shorts that would otherwise destroy a discrete driver. Typical applications include HVAC control boards, appliance control modules, and industrial relay multiplexers where high reliability and minimal external components are essential.
Recommended
IoT and Building Automation
In IoT gateways and building automation systems, the ITS4300SSJDXUMA1 controls low-power actuators, LED strips, and small DC loads from a 24 V bus. The low quiescent current in OFF mode preserves battery life in wireless sensor nodes powered by 24 V bus with battery backup. The 400 mA rating suits most low-power building automation loads including motorized valves, smart lock solenoids, and dimmable LED drivers. The integrated protection suite eliminates field service calls due to wiring faults during installation. Designers use the device in HVAC zone controllers, smart thermostat outputs, and access control panels where compact PG-DSO-8 packaging and minimal external parts reduce overall enclosure size.
Recommended
Power Management for High-Side Switching with Low Standby Current
Battery-powered and energy-harvesting systems benefit from the ITS4300SSJDXUMA1's low OFF-mode quiescent current, which preserves battery capacity when loads are switched off. The device is well-suited as a power gating switch for sub-circuits that need to be completely disconnected during sleep modes. The CMOS-compatible control input can be driven by a microcontroller's low-power GPIO, allowing firmware-controlled power sequencing. Applications include handheld test instruments, portable medical devices, and remote sensor nodes. The 400 mA rating covers most auxiliary sub-circuits including sensor signal chains, display backlights, and communication modules.
Recommended
Recommended Products Summary
Engineering reference data for ITS4300SSJDXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ITS4130QEPDXUMA1 | ITS4200SSJDXUMA1 | BTS428L2ATMA1 | ITS724GFUMA1 | BTS4142NHUMA1 | BSP762TXUMA1 |
|---|---|---|---|---|---|---|---|
| Package | PG-DSO-8 | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same | PG-DSO-8 - same |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Continuous Load Current | 400 mA | Similar 400 mA class | Higher current | ~2 A (higher) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| RDS(on) (typical) | 300 mΩ | Similar class | Lower RDS(on) variant | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Overload Protection | Yes (current limit) | Yes | Yes | Yes | Yes | Yes | Yes |
| Thermal Shutdown with Restart | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Overvoltage (Load Dump) Protection | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CMOS-Compatible Input | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Pin-to-Pin Compatible | Yes (PG-DSO-8) | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Compact 400 mA rating in industry-standard PG-DSO-8 footprint (vs BTS428L2ATMA1)
- Full integrated protection suite including load-dump overvoltage (vs Discrete MOSFET + fuse circuits)
- JEDEC-qualified for industrial applications (vs Consumer-grade high-side switches)
Design Notes
The ITS4300SSJDXUMA1 dissipates conduction loss as I²R in the 300 mΩ RDS(on) path. Estimated: at 400 mA continuous load, conduction loss is approximately 0.048 W, well within the PG-DSO-8 thermal envelope. However, during fault conditions the active current limit triggers, increasing dissipation to (Vsupply - Vdsat) x Ilim; ensure PCB copper area provides adequate heatsinking via the exposed pad. For 12 V supply with hard short at the output, peak dissipation can exceed 1 W transient.
Use wide copper traces (at least 50 mil) for the supply (Vs/Vbb) and output (OUT) pins to minimize voltage drop and thermal rise. Connect the exposed thermal pad to a copper pour on the top and bottom layers with multiple thermal vias to the ground plane. Place a 100 nF decoupling capacitor as close as possible to the Vs pin to suppress supply transients. The logic input (IN) trace should be kept short and routed away from the OUT trace to avoid capacitive coupling that could cause false triggering.
The ITS4300SSJDXUMA1 does not include internal reverse-polarity protection; if reverse-battery protection is required, add an external P-channel MOSFET (such as IPD90P04P405ATMA2) in series with the supply. Do not exceed the maximum energy rating for unclamped inductive switching - if driving highly inductive loads (large solenoids or motors), add a TVS diode or freewheeling path. Ensure the input signal is a clean CMOS logic level; floating inputs can cause undefined output behavior. The status/diagnostic pin requires a pull-up resistor per the datasheet.
Compliance Information
RoHS compliance per Infineon product page. Qualified for industrial applications per JEDEC JESD47. Not AEC-Q100 qualified - this part targets industrial rather than automotive primary use, though it is suitable for non-safety automotive body electronics.
