ITS4142NHUMA1 - 1.4A Smart High-Side Switch SOT-223 | Infineon
부품 번호: ITS4142NHUMA1 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.28 | $128.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.88 | $880.00 |
ITS4142NHUMA1 개요
What is a high-side power switch? A high-side power switch is a semiconductor device placed between the positive supply rail and the load. By switching on the high side, the load is referenced to ground when off, eliminating ground loops and improving safety in industrial automation. High-side switches belong to the broader category of power distribution switches within power management ICs. Compared to low-side switches or electromechanical relays, smart high-side switches provide on-resistance control, fault feedback, and protection features in a single monolithic IC.
The ITS4142N integrates short-circuit protection with current limitation, overload protection, overvoltage protection including load-dump transients, undervoltage shutdown with auto-restart and hysteresis, and inductive-load switching capability. These features enable it to drive resistive, inductive, and capacitive loads in harsh 12 V and 24 V automotive and industrial environments. The logic-level input is compatible with 3.3 V and 5 V microcontrollers, simplifying digital control.
Architecturally, the device uses Infineon's SIPMOS vertical power MOSFET technology, which minimizes on-state conduction losses versus lateral MOSFETs. The integrated charge pump drives the gate of the N-channel FET to provide a true low-resistance path from supply to load. An onboard thermal shutdown circuit protects the die during overload events, while open-drain diagnostic feedback signals fault conditions to the host microcontroller.
Typical applications include 24 V industrial PLC outputs, automotive body-control modules, relay replacement in HVAC and lighting systems, programmable logic controller digital outputs, and solenoid or valve drivers. With its wide operating voltage range and embedded protection, the ITS4142N is well suited for IEC 61131-2 compliant industrial digital outputs.
When designing with this part, ensure that input debouncing and proper TVS protection are applied to the load lines for long-term reliability, and verify junction temperature under worst-case continuous load. A key design trade-off is RDS(on) versus quiescent current; the ITS4142N favors low on-resistance for minimal load-side dissipation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, supporting both new designs and relay-replacement retrofits.
드롭인 대체품: ITS4142NHUMA1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ITS4142NHUMA1 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Topology, Operating Temperature Range, Continuous Load Current, Diagnostic Output.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ITS4141NHUMA1
✅ 드롭인✓ 재고 있음
$0.95 / 개
데이터시트 보기 →ITS4140NHUMA1
✅ 드롭인✓ 재고 있음
$0.72 / 개
데이터시트 보기 →ITS4880R
✅ 드롭인✓ 재고 있음
$5.89 / 개
데이터시트 보기 →BSP75NHUMA1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
VNN1NV04P-E
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ITS4142NHUMA1 최대 정격 & 전기적 특성
| Manufacturer | Infineon Technologies |
| Product Type | Smart High-Side Power Switch |
| 토폴로지 | 1:1 N-Channel High-Side |
| 출력 수 | 1 |
| Continuous Load Current | 1.4 A |
| 동작 공급 전압 | 5 V to 34 V (load-dump tolerant to 45 V) |
| Logic Input Voltage | Logic-level, 3.3 V and 5 V compatible |
| Overvoltage Protection | Yes, including load dump |
| Undervoltage Shutdown | Yes, with auto-restart and hysteresis |
| Short Circuit Protection | Yes, with current limitation |
| Overload Protection | Yes |
| 열 차단 | Yes |
| Diagnostic Feedback | Yes, open-drain status output |
| Inductive Load Switching | Yes, with internal clamping |
| 동작 온도 | -40C to +125C (junction) |
| 패키지 | PG-SOT223-4 (4-pin SOT-223) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
ITS4142NHUMA1 핀 구성
| 핀 1 | IN — Logic-level input (3.3V/5V compatible), drives gate of high-side FET |
| 핀 2 | GND — Logic ground / signal return |
| 핀 3 | Vbb — Supply voltage (5 V to 34 V), connected to load via drain of internal N-FET |
| 핀 4 | ST — Open-drain diagnostic status output |
일반적인 애플리케이션
ITS4142NHUMA1 적합 용도: 6 애플리케이션s: 24V Industrial PLC Digital Output, Automotive Body Control Module (BCM), Relay Replacement in HVAC Controls, Solenoid and Valve Driver, LED Lighting Driver (Industrial), Industrial Sensor Power Switch.
24V Industrial PLC Digital Output
The ITS4142NHUMA1 is well suited as a digital output driver for 24 V industrial PLC modules conforming to IEC 61131-2. Its 1.4 A continuous rating handles solenoid, valve, and indicator loads directly, while embedded short-circuit and overcurrent protection satisfy the IEC 61131-2 abnormal-operation test. The open-drain diagnostic pin reports wire-break and overload faults back to the PLC scan engine. With operating voltage from 5 V to 34 V and load-dump tolerance to 45 V, the part tolerates the harsh 24 V industrial bus transients without external protection.
추천
Automotive Body Control Module (BCM)
The ITS4142NHUMA1 fits automotive BCM channels driving 12 V lighting, mirror-fold, door-lock, and seat-adjustment actuators. The integrated load-dump protection meets ISO 7637 pulse 5a/5b requirements, and the short-circuit current limit protects against harness faults. Thermal shutdown recovers automatically when the fault clears. Use the open-drain status pin to flag fault conditions over CAN or LIN to the BCM host controller.
추천
Relay Replacement in HVAC Controls
For HVAC control boards replacing legacy electromechanical relays, the ITS4142NHUMA1 provides silent, bounce-free switching of 24 V damper motors, fan stages, and valve solenoids. Compared to a 24 V relay, it eliminates coil inrush, contact wear, and audible click noise, while the embedded diagnostics enable predictive maintenance alerts. The PG-SOT223-4 footprint allows drop-in PCB replacement of an existing relay footprint with minimal rework.
추천
Solenoid and Valve Driver
The ITS4142NHUMA1 is rated for switching inductive loads with internal active clamping, making it a direct driver for 12 V or 24 V hydraulic solenoids, pneumatic valves, and latching relays in industrial automation. With 1.4 A continuous rating it covers most small-to-medium valve actuators. Designers must verify that the load's stored inductive energy (1/2 L I^2) does not exceed the ITS4142N datasheet single-pulse avalanche rating to avoid long-term reliability degradation.
추천
LED Lighting Driver (Industrial)
For industrial 24 V LED indicator strips and architectural lighting drivers, the ITS4142NHUMA1 provides PWM-dimmable high-side current switching with embedded overcurrent and overtemperature protection. With a 3.3 V or 5 V logic-level input, it can be driven directly by a microcontroller PWM output at frequencies up to the datasheet limit. The diagnostic feedback indicates open-load and shorted-load conditions, useful for lamp-out detection in industrial fixture arrays.
추천
Industrial Sensor Power Switch
The ITS4142NHUMA1 can switch power to 24 V field sensors (proximity, photoelectric, level) and IO-Link sensor supplies, providing programmable hot-swap and short-circuit isolation per sensor channel. The undervoltage shutdown with auto-restart protects sensors from brown-out events during heavy motor loads on the same 24 V rail. Diagnostic feedback reports per-channel health back to the IO-Link master.
추천
추천 제품 요약
엔지니어링 참조 데이터: ITS4142NHUMA1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ITS4141NHUMA1 | ITS4140NHUMA1 | ITS4880R | BSP75NHUMA1 | VNN1NV04P-E |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | STMicroelectronics |
| Package | PG-SOT223-4 | PG-SOT223-4 | PG-SOT223-4 | PG-SOT223-4 | PG-SOT223-4 | SOT-223 (verify pinout) |
| Topology | High-Side N-Channel Smart Switch | High-Side N-Channel Smart Switch | High-Side N-Channel Smart Switch | High-Side Smart Switch | High-Side N-Channel Smart Switch | High-Side N-Channel OMNIFET |
| Continuous Load Current | 1.4 A | ~0.7 A | ~0.4 A | ~2 A | ~1 A | ~1 A |
| Operating Voltage Range | 5 V to 34 V | 5 V to 34 V | 5 V to 34 V | 5 V to 34 V | 5 V to 34 V | 5 V to 36 V |
| Diagnostic Feedback | Open-drain status | Open-drain status | Open-drain status | Open-drain status | Open-drain status | Status output (verify pin) |
| Load-Dump Protection | Yes (45 V) | Yes | Yes | Yes | Yes | Yes |
| Short-Circuit Protection | Yes (current limit) | Yes | Yes | Yes | Yes | Yes |
주요 차별점
- Single-channel 1.4 A smart high-side switch in compact PG-SOT223-4 (vs ITS4141NHUMA1)
- Integrated load-dump protection up to 45 V (vs Discrete N-MOSFET + fuses + TVS approach)
- Open-drain diagnostic feedback for fault reporting (vs VNN1NV04P-E (STMicroelectronics))
설계 노트
Estimated: with the PG-SOT223-4 thermal pad soldered to ~1 square inch of copper, theta_JA is typically 60-80 C/W. At 1.4 A continuous load and RDS(on) on the order of 100-200 mOhm, junction temperature rise above ambient is in the 15-30 C range - well within the 125 C limit. For continuous operation at maximum load in enclosed industrial cabinets, increase copper area to 2-3 square inches and provide airflow to maintain margin.
Use a large copper pour under the SOT-223 tab (pin 3 / thermal pad) to maximize heat dissipation. Place input RC filter on the logic IN pin within 5 mm of the IC to reject high-frequency noise from industrial motor inverters. Provide a 100 nF ceramic bypass capacitor directly across Vbb to GND, and route the diagnostic pin away from switching power traces to avoid false triggering.
Do not connect the load between Vbb and the IC drain (pin 3) in reverse - this is a high-side switch and the load must return to GND, not to Vbb. Exceeding the inductive avalanche rating (E_AS) by switching highly inductive loads without external clamping causes long-term degradation even if the device survives each event. Always size the load's stored energy (1/2 L I^2) against the datasheet E_AS rating.
Keep the high-current load trace (from pin 3 / tab) short and wide to minimize voltage drop during inrush events. Use a star-ground topology so that the ITS4142N ground pin sees the same ground as the host MCU ground, preventing logic-level misinterpretation. Place TVS diodes on Vbb for additional load-dump protection if the application exceeds ISO 7637 worst-case transients.
규정 준수 정보
RoHS compliant per Infineon product page. HUMA1 suffix designates industrial grade (not AEC-Q100); AEC-Q100 automotive grade variants exist in the PROFET family but require a different order code. Halogen-free status not stated in the verified web data.
