ITS4140NHUMA1 - 200mA High-Side Smart Switch | Infineon
部品番号: ITS4140NHUMA1 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.18 | $11.80 |
| 100 | $0.96 | $96.00 |
| 500 | $0.83 | $415.00 |
| 1,000 | $0.72 | $720.00 |
ITS4140NHUMA1 概要
A high-side switch is a power-distribution IC that controls a load by switching the positive supply rail rather than ground return; this topology, also called a smart power switch or PROFET, sits in the PMIC (Power Management IC) hierarchy between discrete MOSFETs and fully-integrated system-basis chips. Compared with an electromechanical relay, a high-side switch provides silent, bounce-free switching, integrated diagnostics, and far faster fault response; compared with a discrete MOSFET plus fuse, it self-protects without external components.
The ITS4140N integrates a charge pump that drives the internal N-channel FET, a precise current limit, thermal shutdown, and ground-loss detection. Diagnostic feedback is provided through the IN/status pin, simplifying wire harness troubleshooting. Switching inductive loads such as solenoids, relays, and small motors is handled with internal active clamping that absorbs the back-EMF without external freewheeling diodes, simplifying PCB layout.
Designed for 12 V and 24 V industrial environments, the part withstands load-dump transients per ISO 7637-2 and is suitable for automotive and truck body electronics where the supply bus can swing well above nominal. Its 200 mA continuous current limit makes it ideal for driving small lamps, signal LEDs, sensors, and logic-level loads without external heatsinking.
When designing with this device, observe maximum input voltage (60 V) under worst-case load-dump, derate current with ambient temperature above 25C, and place the input capacitor within 5 mm of the Vbb pin. The exposed tab is the power-dissipation path and must be soldered to a copper pour of at least 100 mm squared.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
ドロップイン代替品: ITS4140NHUMA1 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ITS4140NHUMA1 （同一形状・フットプリント） — 相違点: Package, Topology, Continuous Load Current, Operating Temperature Range, Protection Features.
クイック比較ツール — 並列比較する代替部品を選択:
BTS4140NHUMA1
✅ ドロップイン✓ 在庫あり
$0.58 / 個
データシートを見る →BTS452TATMA1
✅ ドロップイン✓ 在庫あり
$1.12 / 個
データシートを見る →BTS3028SDLATMA1
✅ ドロップイン✓ 在庫あり
$1.05 / 個
データシートを見る →BTS3134NHUMA1
✅ ドロップイン✓ 在庫あり
$0.78 / 個
データシートを見る →ITS4140N
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ITS4140NHUMA1 最大定格＆電気的特性
| 機能 | High-Side Power Switch / Load Driver |
| トポロジー | 1:1 (Input to Output) |
| Switch Type | N-Channel (vertical, integrated) |
| Output Current (Continuous) | 200 mA |
| Supply Voltage Range (Vbb) | 4.9 V to 60 V |
| Short-Circuit Protection | Yes (current limit + thermal shutdown) |
| Overload Protection | Yes |
| Overvoltage Protection | Yes (including load dump) |
| Inductive Load Clamping | Yes (active negative-voltage clamp at output) |
| Diagnostic Output | Yes (status/IN pin feedback) |
| 動作温度範囲 | -40 C to +125 C |
| パッケージ | PG-SOT223-4 (3+Tab) |
| 実装タイプ | Surface Mount |
| MSLレベル | 1 (per JEDEC J-STD-020) |
| RoHS ステータス | Compliant |
ITS4140NHUMA1 ピン構成
| ピン 1 | IN/status — Logic input (drives gate of internal FET) and combined diagnostic status output |
| ピン 2 | GND — Ground reference |
| ピン 3 | Vbb — Supply voltage (4.9 V to 60 V); place input decoupling capacitor close to this pin |
| ピン 4 | OUT (Tab) — Switched load output; the metal tab is internally connected to OUT and acts as the thermal pad |
主な用途
ITS4140NHUMA1 の用途: 6 件s: Automotive Body Control Modules (BCM), Industrial 24V Sensor and Actuator Switching, Truck and Heavy-Duty 24V Lighting, Programmable Logic Controller (PLC) Digital Outputs, HVAC and Building Automation Actuators, Battery-Management and Load Disconnect.
Automotive Body Control Modules (BCM)
The ITS4140NHUMA1 fits automotive body-control modules driving small lamps, signal LEDs, and logic-level sensors directly from the 12 V or 24 V vehicle bus. Its 60 V load-dump withstand protects against ISO 7637-2 transients, while 200 mA continuous current covers interior lighting and indicator loads. Integrated short-circuit, overload, and thermal shutdown eliminate external fuses and heatsinks, reducing BOM cost per channel. The IN/status pin provides diagnostic feedback to the BCM microcontroller, enabling wire-harness fault detection. Compared with a discrete N-channel MOSFET plus fuse, the ITS4140N reduces PCB area and improves reliability by replacing four to five discrete parts with one PROFET.
おすすめ
Industrial 24V Sensor and Actuator Switching
In industrial 24 V control cabinets, the ITS4140NHUMA1 drives proximity sensors, small solenoid valves, and indicator lamps with built-in ground-loss and short-circuit protection. Its 4.9 V to 60 V supply range tolerates the 24 V nominal rail plus transient excursions typical of factory environments. The integrated negative-voltage clamp allows direct connection to inductive loads such as relay coils without external freewheeling diodes. The status pin reports open-load and short-circuit faults to the PLC, reducing commissioning time. Designers value the PG-SOT223-4 footprint for compact DIN-rail I/O modules where board space is at a premium.
おすすめ
Truck and Heavy-Duty 24V Lighting
The ITS4140NHUMA1 is well suited to commercial-vehicle marker lamps, side repeaters, and small interior lighting circuits that operate from a 24 V truck battery. Its 60 V load-dump tolerance handles the larger transients seen on heavy-vehicle buses compared with passenger cars. The 200 mA continuous rating covers most LED marker modules, and the integrated thermal shutdown prevents damage if the lamp wiring is miswired or shorted. Replacing a relay + fuse pair with one PROFET improves lifetime because there are no moving contacts to wear out.
おすすめ
Programmable Logic Controller (PLC) Digital Outputs
PLC digital-output modules commonly switch 24 V field devices, and the ITS4140NHUMA1 provides a compact, protected high-side driver per channel. Its built-in current limit and diagnostic feedback allow the PLC firmware to detect wire breaks, overloads, and shorts without external sense resistors. The exposed-tab SOT-223 package dissipates heat efficiently, enabling 200 mA continuous operation per channel in dense 16- or 32-channel output cards. Compared with traditional Darlington + relay outputs, the ITS4140N reduces power dissipation by an order of magnitude.
おすすめ
HVAC and Building Automation Actuators
Building-automation controllers use 24 VAC or 24 VDC rails to drive small damper actuators, valve solenoids, and relay coils. The ITS4140NHUMA1 replaces electromechanical relays in these applications with silent, solid-state switching rated for millions of cycles. The integrated inductive-load clamp allows direct drive of relay and solenoid coils without external diodes. The status pin reports fault conditions back to the building-management system for predictive maintenance, a key advantage over fuses that only fail after an overcurrent event.
おすすめ
Battery-Management and Load Disconnect
In battery-powered systems the ITS4140NHUMA1 functions as a low-side or high-side load-disconnect switch for sub-systems that must be isolated during deep-discharge protection. Its 4.9 V minimum operating voltage allows connection directly to a single-cell Li-Ion or 6 V lead-acid stack, and the 60 V ceiling accommodates 48 V telecom battery rails with margin for transients. The integrated current limit prevents large inrush currents from damaging the disconnect switch, while the status pin confirms successful disconnect to the battery monitor IC.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ITS4140NHUMA1 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | BTS4140NHUMA1 | BTS452TATMA1 | BTS3028SDLATMA1 | BTS3134NHUMA1 | ITS4140N |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-SOT223-4 (3+Tab) | PG-SOT223-4 (3+Tab) - same | PG-SOT223-4 (3+Tab) - same | PG-SOT223-4 (3+Tab) - same | PG-SOT223-4 (3+Tab) - same | PG-SOT223-4 (3+Tab) - same |
| Supply Voltage Range | 4.9 V to 60 V | 4.9 V to 60 V | 4.5 V to 42 V | 4.5 V to 28 V | 4.5 V to 60 V | 4.9 V to 60 V |
| Continuous Load Current | 200 mA | 200 mA | ~2.6 A | ~700 mA | ~1.2 A | 200 mA |
| Diagnostic Status Pin | Yes | Yes | Yes | Yes | Yes | Yes |
| Inductive Load Clamp | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature Range | -40 C to +125 C | -40 C to +125 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +125 C |
主な差別化要因
- Industrial-grade cost advantage over automotive-grade BTS4140N （vs BTS4140NHUMA1)
- Lower current class fits signal-level loads without oversizing （vs BTS452TATMA1)
- 60 V supply ceiling exceeds 24 V truck rail with full load-dump margin （vs BTS3028SDLATMA1)
設計ノート
Estimated: at 200 mA load and an on-resistance of approximately 1.5 ohm (typical for ITS4140N family), power dissipation is roughly 60 mW - well within the PG-SOT223-4 thermal budget without external heatsink. Solder the exposed tab to a copper pour of at least 100 mm squared to keep theta_JA below 60 C/W. For continuous operation above 150 mA in enclosed housings, derate by 0.6 mA per degree C above 25 C ambient.
Place the Vbb input decoupling capacitor (100 nF ceramic minimum, 1 uF recommended for load-dump survivability) within 5 mm of pin 3 to suppress supply ringing. Keep the high-current OUT trace short and wide; the load return should connect to GND at pin 2 with a low-impedance path. Avoid routing sensitive analog signals under the PG-SOT223-4 tab to prevent ground bounce coupling.
Do not exceed 60 V on Vbb during load-dump - even momentary transients above the absolute maximum permanently damage the internal charge pump. The IN/status pin is a combined logic and diagnostic line; do not drive it from a push-pull driver that exceeds 5.5 V. When driving large inductive loads (over 100 mH), add an external TVS across the load to share the inductive clamp energy and extend device lifetime.
コンプライアンス情報
Industrial-grade PROFET. RoHS and REACH compliant per Infineon product page. AEC-Q100 not applicable for the ITS4140N industrial variant - use BTS4140N for AEC-Q100 qualified designs.
