BTS52001ENAXUMA1 - 200mΩ 1.5A Smart High-Side Switch | Infineon
部品番号: BTS52001ENAXUMA1 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.45 | $14.50 |
| 100 | $1.18 | $118.00 |
| 500 | $0.95 | $475.00 |
| 1,000 | $0.82 | $820.00 |
BTS52001ENAXUMA1 概要
A high-side power switch (also called a smart high-side switch or PROFET) is a type of power distribution switch that sits between the battery/load supply and the load, controlling current flow with an integrated MOSFET and providing on-state diagnosis, over-current protection, and thermal shutdown. Smart high-side switches belong to the broader category of power distribution switches, which sit under power management ICs and semiconductor ICs. They differ from low-side switches (which sit between the load and ground) by offering better protection against short-to-ground and short-to-battery faults, making them the preferred topology in body-control modules, BCMs, and junction boxes.
Key features include an active-high logic-level input, status feedback, open-load detection in OFF state, current limitation, over-temperature shutdown with auto-restart, and over-voltage protection including load-dump robustness. The integrated charge pump drives the N-channel MOSFET gate above the battery rail, achieving true low-RDS(on) high-side switching without external bootstrap components. The exposed-pad PG-TDSO-8-31 package provides a low thermal resistance path for dissipating load-current I²R losses.
Typical applications include automotive body electronics (BCM, junction box), 12V R10W lamp drivers (turn indicator, rear lamp, interior lighting), LED driver modules for tail lamps and ambient lighting, and resistive/inductive load driving up to 1.5A. The diagnostic pin enables ECU-level fault detection of open-load, short-to-GND, and short-to-battery conditions - critical for ASIL-relevant functional safety analysis.
When designing with this part, ensure the input pin is driven by a true logic-level signal (3.3V or 5V microcontroller GPIO is compatible) and add a small RC network on IN if the wiring harness is long. The exposed pad must be soldered to a copper area of at least 1 cm² to meet the datasheet's 31 K/W thermal resistance rating.
ドロップイン代替品: BTS52001ENAXUMA1 — 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: BTS52001ENAXUMA1 （同一形状・フットプリント） — 相違点: Package, Diagnostic Output, Topology, Operating Temperature Range, MSL Level.
クイック比較ツール — 並列比較する代替部品を選択:
BTT62001ENAXUMA1
✅ ドロップイン✓ 在庫あり
$1.72 / 個
データシートを見る →BTS52001ENAXUMA1 最大定格＆電気的特性
| Product Type | Smart High-Side Power Switch |
| Family | Classic PROFET 12V |
| Technology | Smart6 (N-channel vertical MOSFET with charge pump) |
| Number of Channels | 1 |
| On-State Resistance (RDS(on)) | 200 mΩ (typical) |
| Continuous Load Current | 1.5 A |
| Nominal Operating Voltage | 12 V |
| Operating Voltage Range | 4.5 V to 28 V (load-dump tolerant) |
| Input Control | Logic-level, active-high |
| Diagnostic Output | Yes (status feedback) |
| Open-Load Detection | Yes (in OFF state) |
| Current Limitation | Yes (integrated) |
| Over-Temperature Protection | Yes (with auto-restart) |
| Over-Voltage Protection | Yes (load-dump robust) |
| パッケージ | PG-TDSO-8-31 (Exposed Pad) |
| 実装タイプ | Surface Mount |
| 動作温度範囲 | -40 °C to +150 °C |
| Automotive Qualification | AEC-Q100 qualified |
| Target Load | 1× R10W 12V lamp, LEDs |
BTS52001ENAXUMA1 ピン構成
| ピン 1 | OUT — Power output to load |
| ピン 2 | IN — Logic input (active-high) |
| ピン 3 | GND — Ground |
| ピン 4 | VBB — Battery supply voltage |
| ピン 5 | IS — Current sense / diagnostic output |
| ピン 6 | NC — Not connected (per datasheet) |
| ピン 7 | NC — Not connected (per datasheet) |
| ピン 8 | NC — Not connected (per datasheet) |
主な用途
BTS52001ENAXUMA1 の用途: 6 件s: 12V Automotive R10W Lamp Driver, LED Tail-Lamp and Ambient Lighting Driver, Body Control Module (BCM) Load Outputs, Resistive Load Switching in Junction Boxes, Industrial 24V PLC Discrete Output, Replacement of Electromechanical Automotive Relays.
12V Automotive R10W Lamp Driver
The BTS52001ENAXUMA1 is specifically designed by Infineon to drive 1× R10W 12V incandescent lamps in automotive body electronics. Its 200 mΩ RDS(on) keeps conduction losses low (P = I²R ≈ 0.45 W at 1.5 A), while the integrated charge pump and N-channel MOSFET ensure true high-side switching without external bootstrap. Compared to a discrete MOSFET + relay solution, the integrated current limit protects against the cold-filament inrush (typically 8× nominal current at turn-on), and the thermal shutdown with auto-restart handles prolonged short-circuit events - critical for turn-indicator and rear-lamp reliability targets.
おすすめ
LED Tail-Lamp and Ambient Lighting Driver
For automotive LED tail-lamp modules and interior ambient lighting, the BTS52001ENAXUMA1 provides clean PWM-dimmable high-side switching with diagnostic feedback. Its 4.5-28 V operating range covers cranking and load-dump transients on the 12V bus, and the open-load detection in OFF state catches failed-LED conditions for ASIL-relevant safety reporting. The exposed-pad PG-TDSO-8-31 package dissipates the I²R loss efficiently across a 1 cm² copper pour, enabling compact lamp-module PCB designs without an external heatsink.
おすすめ
Body Control Module (BCM) Load Outputs
In a body control module, the BTS52001ENAXUMA1 replaces legacy electromechanical relays with a solid-state high-side switch for loads such as door-lock motors, mirror heaters, and seat adjusters up to 1.5 A. The logic-level active-high input is directly compatible with 3.3 V or 5 V microcontrollers, eliminating the need for a gate-driver stage. The integrated diagnostic pin feeds back to the BCM MCU for fault management, and the AEC-Q100 qualification satisfies OEM automotive quality requirements for underhood and cabin-mounted ECUs.
おすすめ
Resistive Load Switching in Junction Boxes
Automotive junction boxes use the BTS52001ENAXUMA1 for centralized switching of resistive loads such as heated mirrors, seat heaters, and small PTC auxiliary heaters. The 200 mΩ RDS(on) keeps self-heating manageable inside the sealed junction-box enclosure, while the load-dump robustness protects the device during alternator-battery disconnect events. Multiple BTS52001ENAXUMA1 channels can be paralleled with separate diagnostic lines, though Infineon typically recommends the BTS5210GXUMA1 dual-channel part for higher-density junction-box designs.
おすすめ
Industrial 24V PLC Discrete Output
Beyond automotive, the BTS52001ENAXUMA1 can drive 24V industrial loads up to 1.5 A in PLC discrete-output modules, offering logic-level control, over-current protection, and fault feedback in a single SO-8 equivalent package. The 4.5-28 V operating range covers nominal 24 V industrial rails with adequate transient margin. Although not AEC-Q100 mandated in industrial settings, the part's automotive-grade robustness provides superior reliability for factory-automation discrete I/O.
おすすめ
Replacement of Electromechanical Automotive Relays
The BTS52001ENAXUMA1 is an ideal drop-in solid-state replacement for 12 V automotive relays in applications where silent operation, longer lifetime, and diagnostic feedback are required. It eliminates relay-coil current draw, contact bounce, and mechanical wear while adding open-load and short-circuit protection. The PG-TDSO-8-31 footprint allows PCB-direct substitution in many relay-driver PCB layouts, particularly in next-generation BCM designs targeting ISO 26262 functional safety compliance through electronic rather than electromechanical switching.
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: BTS52001ENAXUMA1 — 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 | BTS52001EJAXUMA1 | BTT62001ENAXUMA1 |
|---|---|---|---|
| Package | PG-TDSO-8-31 (Exposed Pad) | PG-DSO-8-43-EP - different footprint | PG-TDSO-8-31 - same |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| RDS(on) | 200 mΩ | 200 mΩ - identical | 200 mΩ - identical |
| Continuous Load Current | 1.5 A | 1.5 A - identical | 4 A - higher |
| Nominal Operating Voltage | 12 V | 12 V - identical | 12 V - identical |
| Number of Channels | 1 | 1 - identical | 1 - identical |
| Automotive Qualification | AEC-Q100 | AEC-Q100 - identical | AEC-Q100 - identical |
| Technology | Smart6 (Classic PROFET 12V) | Smart6 - identical | Smart6 - identical |
主な差別化要因
- TDSO-8-31 exposed-pad package with verified drop-in higher-current upgrade path （vs BTT62001ENAXUMA1)
- Integrated diagnostic feedback for functional-safety compliance （vs BTS52001EJAXUMA1)
設計ノート
Estimated: at 1.5A continuous load and 200mΩ RDS(on), the steady-state conduction loss is approximately P = I²R = 1.5² × 0.2 = 0.45W. With the PG-TDSO-8-31 package mounted on a 1 cm² copper pour (theta_JA ≈ 50 K/W per datasheet), the junction temperature rise is roughly 22.5 K above ambient - well within the 150 °C junction limit. For sustained operation near 1.5A, increase the copper area to at least 2 cm² to maintain margin.
Solder the exposed thermal pad of the PG-TDSO-8-31 package to a continuous copper plane on the top layer with multiple thermal vias to the inner/ground plane. Place the input decoupling capacitor (typically 100nF) within 5mm of the IN pin, and the VBB bulk capacitor (typically 10-47µF) within 10mm of the VBB pin. Route the high-current OUT trace with at least 1mm width per ampere to avoid copper-heating side effects.
Do not leave the diagnostic (IS) pin floating when unused - connect it to GND through a pull-down resistor or to the MCU ADC input. A floating IS pin can pick up noise and falsely trigger fault diagnostics. Also note that the BTS52001ENAXUMA1 does NOT include reverse-battery protection on VBB; for reverse-polarity protection add an external P-MOSFET or Schottky diode in series with VBB per Infineon application note AN-100.
コンプライアンス情報
AEC-Q100 qualified per Infineon datasheet. RoHS and halogen-free compliant per product page. Designed for automotive 12V body electronics applications.
