BSP752R - 1.3A 24V Smart High-Side Switch | Infineon
部品番号: BSP752R ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.86 | $186.00 |
| 500 | $1.54 | $770.00 |
| 1,000 | $1.28 | $1,280.00 |
| 2,500 | $1.1 | $2,750.00 |
BSP752R 概要
A smart high-side switch is a fully protected power distribution IC that sits between a microcontroller GPIO and a grounded load, replacing electromechanical relays and discrete MOSFET circuits. Within the broader taxonomy, the BSP752R belongs to the PROFET family of protected switches, which sits under smart power switches -> power management ICs -> semiconductors. Compared with a discrete MOSFET solution, the integrated approach embeds gate drive, protection logic, and diagnostic telemetry in one chip.
Key features include reverse battery protection when paired with an external resistor, fast demagnetization of inductive loads (relays, solenoids, valves), an open-drain diagnostic output flagging overtemperature events, and a CMOS-compatible logic-level input. The 52 V transient rating makes the part compatible with automotive load-dump transients specified in common 24 V truck and bus systems.
The architecture pairs an N-channel vertical power MOSFET with an on-chip charge pump that generates the gate voltage above the supply rail, plus a bandgap-referenced current limit and a thermal sensor tied to automatic restart logic. This monolithic integration allows the BSP752R to deliver 1.3 A continuous with predictable SOA behavior over -40 C to +150 C junction ranges.
Typical applications include automotive body modules controlling LED lighting, relay/solenoid drivers, and small DC motors. Designers commonly deploy BSP752R in door-lock actuators, HVAC flap motors, and exterior lamp clusters where the open-drain diagnostic pin can be wired back to a body controller for fault reporting.
When designing with BSP752R, place the device as close to the load connector as practical to minimize PCB inductance in the demagnetization path. A reverse-battery protection resistor in series with the supply pin is mandatory for true reverse-polarity immunity, and the diagnostic pin requires an external pull-up.
This page synthesizes distributor pricing, drop-in alternatives in the same PG-DSO-8-6 footprint, and practical design notes that complement (and in places go beyond) what is found in the bare manufacturer datasheet.
ドロップイン代替品: BSP752R — 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: BSP752R （同一形状・フットプリント） — 相違点: Operating Temperature Range, Package, Product Type, Reverse Battery Protection, RoHS Status.
クイック比較ツール — 並列比較する代替部品を選択:
BSP752T
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BSP742RIXUMA1
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$0.96 / 個
データシートを見る →BSP75N
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
VN5E010MHTR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
NCV8402
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BSP752R 最大定格＆電気的特性
| Product Type | Smart High-Side Power Switch (N-channel, 1 output) |
| Series | Classic PROFET 24V |
| 出力構成 | High-side, 1:1 N-Channel |
| Continuous Load Current | 1.3 A |
| Load Dump Transient Rating | 52 V |
| Operating Voltage Range | 5 V to 42 V (12V/24V/42V DC applications) |
| Input Logic Compatibility | CMOS-compatible, ground-referenced |
| Diagnostic Output | Open-drain, overtemperature flag |
| Protection Features | Overload, current limit, short circuit, thermal shutdown with auto-restart, ESD |
| Demagnetization | Fast internal clamp for inductive loads |
| Reverse Battery Protection | Requires external series resistor |
| パッケージ | PG-DSO-8-6 (DSO-8-6, exposed pad) |
| 実装タイプ | Surface Mount |
| 動作温度範囲 | -40 C to +150 C (junction) |
| Technology | Smart SIPMOS (monolithic) |
| Target Applications | Resistive, inductive, capacitive loads; relays; solenoids; valves; lamps |
| Automotive Qualified | Yes (automotive body and lighting applications per Infineon product page) |
| RoHS ステータス | Compliant (per distributor listings) |
BSP752R ピン構成
| ピン 1 | OUT — Power output to load (high-side drain of internal N-channel MOSFET) |
| ピン 2 | Vbb — Supply voltage (battery) - external reverse-battery resistor in series |
| ピン 3 | GND — Ground reference |
| ピン 4 | IN — CMOS-compatible logic input (active high) |
| ピン 5 | IS — Current sense / diagnostic feedback (function varies by variant) |
| ピン 6 | NC — Not connected (per datasheet) |
| ピン 7 | NC — Not connected (per datasheet) |
| ピン 8 | TAB — Exposed pad / tab - thermal pad, internally connected to drain for heat spreading |
主な用途
BSP752R の用途: 6 件s: Automotive LED Lighting Modules, Automotive Relay and Solenoid Replacement, Body Control Modules (BCM), Industrial 24V DC Load Switching, DC Motor Driver (small brushed motors), Truck and Bus 24V Electrical Systems.
Automotive LED Lighting Modules
The BSP752R's 1.3 A continuous current rating and 52 V load-dump transient margin make it an excellent driver for 24V truck and bus LED headlamp, tail-light, and signal-lamp clusters. Per the Infineon datasheet, the integrated current limit prevents LED string over-current during cold-start, while thermal shutdown with auto-restart protects the die if the lamp housing reaches high ambient temperatures. The open-drain diagnostic pin can be wired to the BCM for open-load and overtemperature fault reporting. Engineers typically place a reverse-battery protection resistor in series with Vbb to satisfy ISO 7637-2 reverse-polarity requirements.
おすすめ
Automotive Relay and Solenoid Replacement
The BSP752R is purpose-built to replace electromechanical relays and discrete MOSFET circuits driving 12V/24V relays, solenoids, and valves in body-control modules. Its fast internal clamp demagnetizes inductive kickback from relay coils in microseconds, extending contact life and reducing EMI. According to the Infineon datasheet, the part accepts CMOS logic directly from the microcontroller GPIO without level shifting, simplifying PCB layout. The 1.3 A continuous rating comfortably handles most automotive relay coils drawing 100-300 mA, with substantial margin for inrush transients.
おすすめ
Body Control Modules (BCM)
In distributed body control modules, the BSP752R drives multiple low-to-medium power loads such as door-lock actuators, HVAC flap motors, mirror adjusters, and washer pumps. The PG-DSO-8-6 footprint allows multiple BSP752R channels to be tiled across the BCM PCB with shared copper pour for thermal dissipation. Each instance provides independent fault reporting via the open-drain diagnostic pin back to the BCM microcontroller, enabling per-load OBD-II diagnostics. The 5 V to 42 V operating range covers both 12V passenger and 24V commercial-vehicle platforms with the same BOM.
おすすめ
Industrial 24V DC Load Switching
Beyond automotive, the BSP752R is widely used in industrial 24V systems for switching PLC outputs, sensor power, and small solenoid valves. The 52 V transient rating tolerates the inductive kickback of 24V relay coils and motor windings in factory automation, while ESD and short-circuit protection increase field reliability. The CMOS-compatible input interfaces directly with 3.3V or 5V logic from PLC digital outputs or microcontroller GPIOs. Industrial designers leverage the diagnostic pin for predictive-maintenance telemetry on conveyor, packaging, and process-control lines.
おすすめ
DC Motor Driver (small brushed motors)
The BSP752R can drive small brushed DC motors up to 1.3 A continuous, such as mirror-fold actuators, HVAC blend-door motors, and antenna motors. The internal current limit and thermal shutdown protect the die during motor stall events, while the fast demagnetization clamp absorbs the inductive kickback when the motor is de-energized. According to the manufacturer datasheet, the device handles both resistive and inductive loads including brushed motors. For bidirectional control, two BSP752R units form a half-bridge; for higher-current motors, consider paralleling multiple devices with shared thermal copper.
おすすめ
Truck and Bus 24V Electrical Systems
Commercial trucks, buses, agricultural equipment, and construction vehicles operate on 24V nominal electrical systems with substantial load-dump transients, making the BSP752R's 52 V rating particularly well suited. The device drives exterior lamps, hydraulic solenoid valves, cab interior lighting, and HVAC blowers in these platforms. The automotive-grade qualification per Infineon documentation supports deployment in on-road and off-road commercial vehicles. Pairing with a reverse-battery protection resistor in the supply path ensures compliance with ISO 7637-2 reverse-polarity stress testing.
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: BSP752R — 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 | BSP752T | BSP742R | BSP75N | VN5E010MHTR | NCV8402 |
|---|---|---|---|---|---|---|
| Package | PG-DSO-8-6 | PG-DSO-8-6 (same) | PG-DSO-8-6 (same) | PG-DSO-8-6 (same) | PG-DSO-8-6 (same) | PG-DSO-8-6 (same) |
| Brand | Infineon | Infineon | Infineon | Infineon | STMicroelectronics | onsemi |
| Continuous Load Current | 1.3 A | ~0.6 A (lower-current variant) | ~0.7 A | ~1.0 A | ~1.0 A | ~1.0 A |
| Load Dump Transient Rating | 52 V | 52 V | 52 V | lower (~40 V, 12V-only part) | 41 V | 45 V |
| Operating Voltage Range | 5 V to 42 V | 5 V to 42 V | 5 V to 42 V | 5 V to 18 V (12V-only) | 4.5 V to 28 V | 6 V to 28 V |
| Diagnostic Output | Open-drain, overtemperature flag | Open-drain | Open-drain | Open-drain | Analog current sense + status flag | Open-drain status |
| Reverse Battery Protection | External resistor required | External resistor required | External resistor required | External resistor required | Integrated (some variants) | Integrated |
| Technology | Smart SIPMOS (Infineon) | Smart SIPMOS | Smart SIPMOS | Smart SIPMOS | VIPower (ST) | Self-protected N-MOSFET (onsemi) |
| Automotive Qualified | Yes | Yes | Yes | Yes | Yes | Yes (NCV prefix indicates automotive) |
主な差別化要因
- 1.3 A continuous rating with 52 V load-dump headroom in PG-DSO-8-6 （vs BSP752T)
- Fully integrated protection with diagnostic feedback （vs Discrete N-MOSFET + gate driver + TVS + sense resistor circuit)
- 52 V transient margin enables 24V commercial vehicle deployment （vs BSP75N)
設計ノート
Place the BSP752R as close to the load connector as practical to minimize PCB inductance in the demagnetization path. The internal fast-clamp circuit handles inductive kickback from relay and solenoid coils, but excessive trace inductance reduces its effectiveness. Per the Infineon datasheet, a reverse-battery protection resistor in series with the Vbb pin is mandatory for true reverse-polarity immunity; size this resistor to limit worst-case reverse current within the part's safe operating area. The exposed thermal pad (pin 8) must be soldered to a sufficient copper pour area to keep junction temperature below the 150 C limit at full 1.3 A continuous load.
Estimated: At 24V supply, fully on with 1.3 A continuous load, and assuming a typical on-state resistance in the tens of milliohms (exact value [DATA_NEEDED: Rdson]), the BSP752R dissipates between approximately 0.2 W and 0.5 W steady state. With the PG-DSO-8-6 thermal pad properly soldered to at least 1 square inch of copper pour, this dissipation is easily handled within the -40 C to +150 C junction rating. In designs with multiple BSP752R devices stacked on the PCB, distribute them across the board area rather than clustering to spread the thermal load and avoid hot spots that could trigger thermal shutdown with auto-restart under high ambient.
Do not omit the reverse-battery protection resistor; without it the part cannot survive reverse-polarity events per the datasheet. The open-drain diagnostic pin requires an external pull-up resistor to Vcc or Vlogic - leaving it floating will not report faults correctly to the microcontroller. Avoid driving the CMOS input pin with voltages above the datasheet maximum (typically 5.5V referenced to GND) - use a series resistor or level shifter if the upstream GPIO can exceed this. Finally, when using the BSP752R with highly inductive loads above 1.3 A inrush, verify the inrush does not exceed the current-limit threshold for longer than the part's blanking time, otherwise it may enter false shutdown.
Keep the ground return path short and direct: route the GND pin (pin 3) to the system ground plane with a wide trace or via array directly under the exposed pad. The input pin (IN, pin 4) trace can be narrow but should be routed away from switching nodes and inductive traces to avoid false triggering from capacitive coupling. The Vbb trace should be wide enough to handle the 1.3 A load with minimal voltage drop, especially in 24V truck and bus applications where battery cable runs are long.
コンプライアンス情報
AEC-Q100 automotive grade per product family documentation. RoHS and REACH compliant per distributor listings. Lead-free and halogen-free per Infineon product page.
