ITS4200SMEOHUMA1 - 700mA Smart High-Side Switch | Infineon
MPN: ITS4200SMEOHUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.15 | $21.50 |
| 100 | $1.78 | $178.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.18 | $1,180.00 |
| 3,000 | $0.98 | $2,940.00 |
ITS4200SMEOHUMA1 Overview
A smart high-side switch (also called a high-side driver, smart power switch, or PROFET) is a power-distribution IC that sits between an upstream supply and a downstream load, replacing a discrete MOSFET plus discrete protection circuitry. It belongs to the broader power-management category: high-side switch -> power distribution switch -> power management IC -> semiconductor. By placing the switch on the high side of the load, the device allows loads (such as lamps, solenoids, relays, or resistive heaters) to share a common ground return, simplifying PCB routing and improving system safety because fault currents flow back through the chassis ground.
Key features include fixed current limiting, overtemperature shutdown with auto-restart, short-circuit protection with shutdown, overvoltage protection including load dump, ground-loss protection, and ESD protection on the input pin and the load output. The CMOS-compatible input is current-controlled, allowing direct drive from a microcontroller GPIO without level shifting. Reverse-battery protection is achieved through the body diode of the internal power MOSFET in conjunction with an external resistor.
The architecture combines a vertical power DMOS output stage, a charge pump to generate the gate-drive voltage above the supply rail, and analog protection blocks for current sense, thermal sense, and voltage monitoring. This monolithic integration is what differentiates ITS-class parts from discrete FET-plus-driver solutions: it eliminates layout-induced parasitic inductance issues and provides guaranteed, tested protection thresholds rather than discrete-component tolerances.
Typical applications include PLC digital outputs, sensor and actuator power distribution in industrial automation, body-control modules in automotive systems, LED driver switching, relay and solenoid drivers, and general 24 V industrial bus switching. Its 700 mA continuous current limit and 45 V transient rating make it especially suited to 24 V PLC and truck/bus 24 V systems where load-dump transients up to 45 V must be tolerated without damage.
When designing with this device, place a reverse-polarity protection diode or P-MOSFET at the supply input to handle full-load reverse-battery events, and ensure adequate copper area on the tab (pin 4) for thermal dissipation. The current-controlled input means a single series resistor sets both the input current and the logic threshold; do not drive the input with a hard voltage source without this resistor.
This page synthesizes distributor pricing, drop-in alternatives from authorized sources, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for ITS4200SMEOHUMA1 — 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 ITS4200SMEOHUMA1 (same form factor and footprint) — differing in Number of Channels, Package, Product Type, Diagnostic Output, Fault Protection.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ITS4200S-ME-O
✅ Drop-In📋 Reference alternative (not in catalog)
BTS51202EKAXUMA1
✅ Drop-In✓ In Stock
$1.68 / Unit
View Datasheet →ISP752TFUMA1
✅ Drop-In✓ In Stock
$1.02 / Unit
View Datasheet →BTS710336ESAXUMA1
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →BTS70401EPAXUMA1
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →ITS4200SMEOHUMA1 Maximum Ratings & Electrical Characteristics
| Part Status | Active |
| Function | High-Side Switch |
| Topology | 1:1 N-Channel |
| Output Configuration | High Side |
| Number of Outputs | 1 |
| Maximum Output Current | 700 mA |
| On-State Resistance (Typ) | 150 mOhm |
| Operating Supply Voltage | 5 V to 45 V nominal (load-dump tolerant) |
| Input Type | CMOS-compatible, current-controlled |
| Fault Protection | Current Limiting (Fixed), Over-Temperature, Over-Voltage, Short Circuit, Ground Loss |
| Operating Temperature (TJ) | -40C to +125C |
| Mounting Type | Surface Mount |
| Supplier Device Package | PG-SOT223-4 (3 leads + tab) |
| Automotive Qualification | Not qualified for automotive / transportation applications (Industrial grade) |
| RoHS Status | Compliant |
ITS4200SMEOHUMA1 Pin Configuration
| Pin 1 | IN — Current-controlled CMOS-compatible input; drive via series resistor from microcontroller GPIO |
| Pin 2 | GND — Ground reference; connect to system ground |
| Pin 3 | OUT — Load output (drain of internal N-channel power FET); connect to load |
| Pin 4 | Vbb — Battery / supply voltage (also the tab); 5 V to 45 V nominal, load-dump tolerant |
Typical Applications
ITS4200SMEOHUMA1 is suitable for 6 applications: PLC Digital Outputs (24V Industrial), Industrial Sensor and Actuator Power Distribution, Relay and Solenoid Driver, LED Driver Switching (24V Indicator Panels), Body and Comfort Module Outputs (Industrial-Grade), General 24V Power Distribution Switch.
PLC Digital Outputs (24V Industrial)
The ITS4200SMEOHUMA1 is purpose-built for 24 V PLC digital output modules driving lamps, solenoids, and relay coils. Its 700 mA continuous current limit comfortably drives small industrial loads, while the 45 V load-dump tolerance handles the inductive transients common when switching 24 V relay coils off. The integrated current limit and thermal shutdown eliminate the need for external fuses in many designs, reducing BOM cost and PCB area. The CMOS-compatible current-controlled input interfaces directly to PLC logic-level shifters or optocouplers with a single series resistor. Designers should add a TVS diode across the load to clamp inductive kickback and protect the OUT pin during flyback events.
Recommended
Industrial Sensor and Actuator Power Distribution
In factory automation, the ITS4200SMEOHUMA1 powers 24 V proximity sensors, limit switches, photoelectric sensors, and pneumatic solenoid valves. The high-side topology allows sensors and actuators to share a common ground return, simplifying wiring harnesses and improving noise immunity. The 150 mOhm typical Rds(on) keeps voltage drop low so 24 V sensors receive close to their nominal supply, avoiding false undervoltage triggers. The device's ground-loss protection is critical when field wiring is exposed to mechanical stress, ensuring the switch shuts down safely if the ground return is broken rather than driving an undefined load. Pair with a reverse-polarity P-MOSFET at the supply input for full reverse-battery protection.
Recommended
Relay and Solenoid Driver
The ITS4200SMEOHUMA1 is well-suited for driving small 24 VDC relays, latching relays, and proportional solenoid valves where a clean high-side disconnect is required. The internal current limit protects against the locked-rotor condition of a stalled solenoid, while thermal shutdown handles sustained overcurrent events without damaging the IC. Unlike a low-side driver, the high-side switch keeps the load at ground potential when off, eliminating ground loops and reducing EMI in mixed-signal industrial systems. The CMOS-compatible input can be driven directly from a microcontroller GPIO through a 10-47 kOhm series resistor, simplifying the interface and removing the need for a discrete gate driver stage.
Recommended
LED Driver Switching (24V Indicator Panels)
For 24 V industrial LED indicator panels, machine-status lights, and signal towers, the ITS4200SMEOHUMA1 provides a compact high-side switch with PWM capability for dimming or color-mixing when driven from a microcontroller. The 45 V load-dump rating tolerates the inductive kickback of long LED harness wiring, while the 150 mOhm Rds(on) keeps conduction losses below 100 mW per channel even at full 700 mA. The internal short-circuit protection is particularly valuable in panel installations where wiring faults are common. Pair with a current-setting resistor or a dedicated constant-current LED driver if precise brightness matching is required.
Recommended
Body and Comfort Module Outputs (Industrial-Grade)
Although NOT AEC-Q100 qualified, the ITS4200SMEOHUMA1 is widely used in non-automotive body-controller applications such as agricultural equipment, construction machinery, and material-handling vehicles powered by 24 VDC bus systems. The device's load-dump and ground-loss protection matches the harsh transient environment of off-road equipment, while the integrated diagnostics (via the input pin current-sense behavior) help detect open-load and short-to-ground faults. For fully AEC-Q100-qualified automotive body-control modules, the Infineon BTS50010 or BTS7008 PROFET families provide pin-compatible upgrades with the same PG-SOT223-4 footprint.
Recommended
General 24V Power Distribution Switch
In any 24 VDC distribution system requiring fuse-less protection and a logic-level control interface, the ITS4200SMEOHUMA1 provides a robust, monolithic replacement for discrete MOSFET-plus-driver solutions. Common use cases include distributed I/O modules, programmable logic controller backplanes, building-automation controllers, and HVAC actuator drivers. The integrated short-circuit and overtemperature protection eliminate the need for external fuses, PTC resettable devices, and discrete thermistors, reducing BOM count and improving long-term reliability. Designers should size the input resistor for the desired logic threshold and place adequate copper area on the tab for thermal dissipation at full load.
Recommended
Recommended Products Summary
Engineering reference data for ITS4200SMEOHUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ITS4200S-ME-O | BTS51202EKAXUMA1 | ISP752TFUMA1 | BTS710336ESAXUMA1 | BTS70401EPAXUMA1 |
|---|---|---|---|---|---|---|
| Package | PG-SOT223-4 (3 leads + tab) | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Function | High-Side Switch (1 channel) | High-Side Switch (1 channel) | High-Side Switch (2 channel) | High-Side Switch (1 channel) | High-Side Switch (multi channel) | High-Side Switch (1 channel) |
| Max Output Current | 700 mA | 1.2 A (datasheet family rating) | 250 mA per channel | 1.8 A | multi-channel | 4 A |
| Operating Voltage | 5 V to 45 V (load-dump tolerant) | 5 V to 45 V | 5 V to 28 V typical | 5 V to 34 V | 5 V to 28 V | 5 V to 28 V |
| Automotive Qualified | No (Industrial grade) | No | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) |
| Fault Protection | Current Limit, Thermal SD, OVP, SCP, Ground Loss | Current Limit, Thermal SD, OVP, SCP, Ground Loss | Current Limit, Thermal SD, OVP, SCP | Current Limit, Thermal SD, OVP, SCP | Current Limit, Thermal SD, OVP, SCP | Current Limit, Thermal SD, OVP, SCP |
Key Differentiators
- Industrial-grade 700 mA in smallest PROFET footprint (vs ISP752TFUMA1)
- Current-controlled CMOS input eliminates level-shifter requirement (vs BTS51202EKAXUMA1)
- 45 V load-dump tolerance in industrial class (vs BTS710336ESAXUMA1)
Design Notes
Estimated thermal analysis: At full 700 mA load with 150 mOhm Rds(on), the ITS4200SMEOHUMA1 dissipates approximately 0.7^2 x 0.150 = 73.5 mW. The PG-SOT223-4 tab must be soldered to at least 1 square inch (645 mm^2) of copper pour on the top or bottom layer for reliable operation; with this copper, theta_JA is approximately 80-100 C/W per typical Infineon PG-SOT223-4 datasheet values. At 70C ambient, this permits up to 800 mW continuous dissipation, giving substantial thermal margin at 700 mA load. For higher-current derating, increase copper area or use forced airflow.
The PG-SOT223-4 tab is the Vbb (battery supply) pin, so the copper pad beneath the tab carries both supply current and heat. Use thermal vias (typically 9-12 vias of 0.3 mm diameter) under the tab to transfer heat to internal copper layers. Place input and output bypass capacitors (100 nF ceramic minimum, 10 uF recommended for load transient support) as close as possible to the IN and Vbb pins. Keep the GND return trace short and wide to minimize parasitic inductance that could degrade ground-loss protection behavior.
Do NOT drive the IN pin with a hard voltage source without a series resistor; the input is current-controlled and requires a series resistor (typically 10-47 kOhm) to set both the input current and the logic threshold per the Infineon datasheet. Driving IN directly with a voltage source bypasses the internal current regulator and can compromise protection. For reverse-battery protection, add an external P-MOSFET at the Vbb input or a series diode; the internal body diode alone will conduct reverse current up to the load rating.
When switching inductive loads (relays, solenoids, lamps), add a flyback TVS diode or freewheeling diode across the load. Although the ITS4200SMEOHUMA1 includes overvoltage protection, sustained flyback from large inductors can exceed the OVP threshold and cause shutdown. For PWM dimming of LEDs, keep PWM frequency between 100 Hz and 1 kHz to avoid audible noise while staying above the device's minimum on-time. Add an RC snubber (100 Ohm + 100 nF) across the load if ringing is observed on the OUT pin during switching transitions.
Compliance Information
Per the Infineon datasheet, the ITS4200S-ME-O (and by extension the ITS4200SMEOHUMA1 OPN) is NOT qualified for automotive or transportation applications. For AEC-Q100 automotive designs, choose the BTS50010, BTS7008, or BTS70401EPAXUMA1 families. RoHS and REACH compliance per Infineon product declaration. Conflict-minerals declaration available from Infineon.
