BTS5030-1EJA - 30mΩ Smart High-Side Switch | Infineon PROFET+ 12V
料号： BTS5030-1EJA ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.86 | $930.00 |
| 1,000 | $1.59 | $1,590.00 |
BTS5030-1EJA 概述
A high-side power switch (also called a smart high-side switch or PROFET) is a semiconductor relay that sits between the battery/load supply and the load, replacing an electromechanical relay or a discrete low-side MOSFET plus fuse combination. Compared with a low-side switch it provides inherent load-short-to-ground protection and simpler wiring, and compared with a mechanical relay it offers silent operation, fast diagnostics, and programmable current limiting. Within automotive power-tree taxonomy, the BTS5030-1EJA belongs to the family: smart high-side switch → protected MOSFET driver → power distribution IC → power management IC.
Key features include a 30 mΩ typ. ON-state resistance at 25 °C, integrated protection functions (current limiting, overtemperature shutdown, overvoltage clamp including load-dump, short-to-ground and short-to-battery detection), and proportional load-current sensing via the IS pin. The device operates from a logic-level IN input (3.3 V / 5 V CMOS-compatible) and provides a DEN diagnostic feedback pin that distinguishes normal operation, open load, overtemperature, and short-circuit conditions. The exposed thermal pad keeps junction-to-ambient thermal resistance low enough to sustain multi-ampere loads without an external heatsink in PCB-typical layouts.
Typical applications include automotive exterior and interior lighting (H7 headlamps, DRL, fog lamps, turn indicators), resistive and inductive loads (seat heaters, mirror heaters, solenoid valves), and general 12 V power distribution in body-control modules. Diagnostic feedback enables ECU-level fault detection without additional wiring or shunt resistors. When designing with the BTS5030-1EJA, observe the printed-circuit layout guidelines in the Infineon application note for PROFET+ 12V devices, keep the exposed pad soldered to a continuous ground copper pour for thermal performance, and respect the maximum energy rating during demagnetization of inductive loads.
直接替换替代料： BTS5030-1EJA ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： BTS5030-1EJA （相同外形与封装尺寸） ——差异在于 Package, Diagnostic Output, Product Type, RoHS Status, Automotive Qualification.
快速对比工具——选择替代料号进行并排对比：
BTS50301EJAXUMA1
✅ 直接替换✓ 有现货
$1.82 / 个
查看数据手册 →ITS4100SSJNXUMA1
✅ 直接替换✓ 有现货
$0.89 / 个
查看数据手册 →BTS4175SGAXUMA1
✅ 直接替换✓ 有现货
$0.71 / 个
查看数据手册 →NCV8460ADR2G
✅ 直接替换📋 参考替代料（不在目录中）
ISP772T
✅ 直接替换📋 参考替代料（不在目录中）
BTS5030-1EJA 最大额定值与电气特性
| Product Family | PROFET™ + 12V |
| 功能 | Single-channel Smart High-Side Power Switch |
| On-State Resistance (RDS(on) typ.) | 30 mΩ |
| Nominal Load Current | 36 A |
| Operating Voltage Range (VS) | 5 V to 28 V |
| Load Dump Clamp Voltage | 41 V (typ.) |
| Logic Input Voltage (IN, DEN) | 3.3 V / 5 V CMOS compatible |
| Diagnostic Output | Current sense (IS) + digital fault pin (DEN) |
| Protection Functions | Current limit, overtemperature shutdown, overvoltage clamp, short-to-ground, short-to-Vbat |
| Output Stage Technology | N-channel vertical power MOSFET with charge pump |
| 封装 | PG-DSO-8-43 EP (Exposed Pad) |
| 安装类型 | Surface Mount |
| Operating Temperature (junction) | -40 °C to +150 °C |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
| Automotive Qualification | AEC-Q100 qualified (PROFET+ automotive grade) |
BTS5030-1EJA 引脚配置
| 引脚 1 | OUT — Drain output to load (electrically tied to exposed pad) |
| 引脚 2 | NC — Not connected (per datasheet) |
| 引脚 3 | VS — Battery supply input (12 V / 24 V) |
| 引脚 4 | VS — Battery supply input (parallel pin for lower impedance) |
| 引脚 5 | IN — Logic-level input (3.3 V / 5 V CMOS), enables output stage |
| 引脚 6 | DEN — Diagnostic enable / fault flag (open-drain) |
| 引脚 7 | GND — Logic and analog ground reference |
| 引脚 8 | IS — Proportional load-current sense output (analog) |
典型应用
BTS5030-1EJA 适用于 6 应用s: Automotive Headlamp Load Driver, Daytime Running Light (DRL) LED Driver, Seat Heater / Mirror Heater Power Stage, Solenoid Valve Driver (12 V Automotive), Body Control Module (BCM) Power Distribution, Industrial 24 V Resistive Load Switching.
Automotive Headlamp Load Driver
The BTS5030-1EJA's 30 mΩ RDS(on) and 36 A nominal continuous rating make it a strong fit for direct-driving H7 / H4 halogen headlamp bulbs from a 12 V battery rail. With the bulb drawing typically 5 A per filament, conduction loss is only 0.75 W per channel, keeping the junction temperature rise manageable on a 1 oz copper SO-8 EP thermal pad. The integrated short-to-ground and load-dump protection satisfies ISO 7637-2 transient requirements without external TVS diodes, and the DEN pin feeds a fault flag directly back to the BCM ECU.
推荐
Daytime Running Light (DRL) LED Driver
Driving DRL LED strings from the BTS5030-1EJA benefits from its analog IS current-sense pin, which produces a proportional load-current image the BCM can use for LED-open detection. The part's 5 V to 28 V operating window covers cold-crank and jump-start conditions without nuisance tripping, and the integrated overtemperature auto-restart prevents thermal runaway when the LED harness develops a partial short. Designers typically add a 1 kHz PWM on the IN pin for DRL dimming, which the BTS5030-1EJA supports up to its switching-time limits.
推荐
Seat Heater / Mirror Heater Power Stage
Resistive heating loads such as seat heaters (~10 A) and mirror heaters (~3 A) sit comfortably within the BTS5030-1EJA's 36 A envelope, with the SO-8 EP exposed pad providing the thermal headroom required for continuous PWM operation. The device's short-to-Vbat protection prevents back-feeding when a heater element chafes against chassis ground, a common automotive failure mode. Current sense via the IS pin enables closed-loop heater temperature regulation in firmware on the BCM.
推荐
Solenoid Valve Driver (12 V Automotive)
Inductive loads such as solenoid valves for transmission, emissions, or HVAC systems require a free-wheeling path when switched off. The BTS5030-1EJA's internal clamp handles the demagnetization energy for moderate solenoids without external TVS, simplifying the PCB. The DEN pin distinguishes between stuck-open and stuck-closed faults, which is critical for OBD-II diagnostics on emission-related solenoids. Verify the inductive load energy against the datasheet EAS rating to confirm safe operation.
推荐
Body Control Module (BCM) Power Distribution
Each BTS5030-1EJA can replace a discrete MOSFET-plus-fuse combination in a BCM, freeing board space and providing digital diagnostics that discrete solutions cannot. Stacking multiple BTS5030-1EJA channels gives the BCM programmable current-limit per output (via MCU-driven IN duty cycle), enabling zonal architectures where each load is software-configurable. The PROFET+12V family's reputation for field reliability makes it a first-choice building block for new BCM designs targeting ASIL-B functional safety.
推荐
Industrial 24 V Resistive Load Switching
Although optimized for 12 V automotive, the BTS5030-1EJA can switch 24 V industrial loads (relays, small heaters, indicator lamps) up to its 28 V maximum supply rating. The exposed-pad SO-8 EP footprint enables hand-soldered prototype boards, and the wide logic-level input range works with 3.3 V microcontrollers common in industrial PLCs. For higher-voltage industrial buses (48 V and above) choose a PROFET+24V or PROFET+48V family member instead.
推荐
推荐产品汇总
工程参考数据： BTS5030-1EJA ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | BTS50301EJAXUMA1 | ITS4100SSJNXUMA1 | BTS4175SGA | NCV8460ADR2G | ISP772T |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies (same die) | Infineon Technologies | Infineon Technologies | onsemi | Infineon Technologies |
| Package | PG-DSO-8-43 EP (Exposed Pad) | PG-DSO-8-43 EP - same | PG-DSO-8-43 EP - same | PG-DSO-8-43 EP - same | PG-DSO-8-43 EP - same | PG-DSO-8-43 EP - same |
| On-State Resistance (RDS(on) typ.) | 30 mΩ | 30 mΩ | ~200 mΩ (higher) | ~175 mΩ | ~50 mΩ | ~50 mΩ |
| Nominal Continuous Current | 36 A | 36 A | ~1.4 A | ~1.8 A | ~6 A | ~4.5 A |
| Operating Voltage Range (VS) | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V |
| Current Sense Output | Yes (IS pin, analog proportional) | Yes (IS pin) | Yes (IS pin) | Yes (IS pin) | Yes (CS pin) | Yes (IS pin) |
| AEC-Q100 Automotive Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Lowest RDS(on) in the cited PROFET SO-8 EP cross-reference set （对比 ITS4100SSJNXUMA1)
- Highest continuous current rating in the cross-reference set （对比 BTS4175SGA)
- True drop-in replacement for the BTS5030-1EJA bare part （对比 NCV8460ADR2G (onsemi))
设计说明
The PG-DSO-8-43 EP exposed pad is the primary thermal path. Solder it to a continuous copper pour that spans at least 1 cm² of 1 oz copper on the top layer, with thermal vias to the inner/outer ground planes. Estimated: at 30 mΩ RDS(on) and 10 A continuous load, conduction loss is I²R = 100 × 0.030 = 3 W, which on a well-poured PCB keeps the junction rise well below 50 K. Without the thermal pad soldered, expect the device to thermal-limit at much lower currents.
Keep VS pins 3 and 4 connected together on the PCB with a wide, short trace (or polygon) directly to the battery feed input capacitor. Place a 100 nF ceramic + 10 µF electrolytic bulk cap within 5 mm of the VS pins to absorb the reverse-recovery energy of the body diode during inductive load turn-off. The exposed pad should be tied to OUT (pin 1) for thermal spreading - confirm against the package land pattern in the datasheet.
Do not drive the IN pin with voltages above 5.5 V or below -0.3 V referenced to GND; the logic input ESD structures will be damaged. When using the IS current-sense pin, route the trace away from switching nodes (the drain of OUT) to avoid capacitive coupling that perturbs the analog sense signal. Finally, ensure the DEN pin is pulled up to the MCU VCC (not VS) with a 10 kΩ resistor, otherwise fault flags may not be readable at low VS voltages.
合规信息
AEC-Q100 qualified per the Infineon PROFET+12V automotive family. RoHS and REACH compliant per Infineon product page. Lead-free and halogen-free manufacturing.
