BTT60302ERAXUMA1 - 32mΩ Dual High-Side Switch | Infineon PROFET+
料号： BTT60302ERAXUMA1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.4 | $3.40 |
| 10 | $3.05 | $30.50 |
| 100 | $2.72 | $272.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
BTT60302ERAXUMA1 概述
A high-side power switch (also called a smart high-side driver) is a power distribution IC that sits between the battery/supply rail and a load (lamp, solenoid, motor, heater). It replaces a mechanical relay or discrete fuse/MOSFET solution by providing solid-state switching plus on-chip protection (overcurrent, overtemperature, short-to-ground/battery, ESD) and load-diagnostic feedback to the MCU. High-side switches belong to the broader category of power distribution switches under PMIC (Power Management IC). Compared with low-side switches, high-side drivers eliminate ground-loops and simplify load-fault detection.
Key features of the BTT60302ERAXUMA1 include a typical on-state resistance of 32 mΩ per channel at 25 °C, an operating supply range of 8 V to 36 V (load-dump tolerant up to 42 V), continuous current up to 4 A per channel, AEC-Q100 automotive qualification, and very low standby current. The device is built in Infineon's Smart6 technology, integrating the power MOSFET, charge pump, gate driver, and protection/diagnostic logic in one die.
Typical applications include automotive body electronics (door modules, seat controllers, lighting drivers), resistive/inductive load driving (heaters, valves, small DC motors), and 24 V truck/commercial-vehicle power distribution. The dual-channel integration halves PCB area versus two single-channel switches, and the built-in diagnostic current sense (IS pin) enables open-load and short-circuit detection without extra shunt resistors.
When designing with this part, observe the exposed-pad thermal layout: the EP must be soldered to a minimum 1 cm² copper area to keep junction temperature within the 150 °C limit under worst-case load-dump and parallel-channel operation. Use a 100 nF X7R ceramic bypass on Vbb close to the pin to suppress supply transients. The IS pin output is analog; route it away from switching nodes and add an RC filter (~1 kΩ + 100 nF) to ground to clean up PWM edge ringing.
This page synthesizes distributor pricing for 2026-09-13, parametric drop-in alternatives, and practical design notes not found in the Infineon datasheet.
直接替换替代料： BTT60302ERAXUMA1 ——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： BTT60302ERAXUMA1 （相同外形与封装尺寸） ——差异在于 Package, Automotive Qualification, Diagnostic Output, Number of Channels, Protection Features.
快速对比工具——选择替代料号进行并排对比：
BTT6030-2ERA
✅ 直接替换📋 参考替代料（不在目录中）
BTS70081EPPXUMA1
✅ 直接替换📋 参考替代料（不在目录中）
BTS70041EPPXUMA1
✅ 直接替换✓ 有现货
$1.45 / 个
查看数据手册 →BTS70021EPPXUMA1
✅ 直接替换✓ 有现货
$1.32 / 个
查看数据手册 →BTS700121ESPXUMA2
✅ 直接替换✓ 有现货
$2.62 / 个
查看数据手册 →BTT60302ERAXUMA1 最大额定值与电气特性
| Product Type | Dual-channel Smart High-Side Power Switch |
| Family | PROFET+ 24V |
| Number of Channels | 2 |
| On-State Resistance (typ, per channel, 25°C) | 32 mΩ |
| Continuous Load Current (per channel) | 4 A |
| Operating Supply Voltage (Vbb) | 8 V to 36 V |
| Load-Dump Tolerance | 42 V |
| Switch Type | 1:1 N-Channel high-side |
| Process Technology | Smart6 (vertical N-MOSFET + charge pump) |
| Diagnostic Output | Current sense (IS pin) |
| Protection Features | Overcurrent, overtemperature, short-to-ground/battery, ESD, open-load detection |
| Automotive Qualification | AEC-Q100 |
| 封装 | PG-TDSO-14-31 (14-pin, exposed pad) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 °C to +150 °C junction |
| RoHS 状态 | Compliant |
BTT60302ERAXUMA1 引脚配置
| 引脚 1 | OUT1 — Channel 1 output to load (high-side switch drain) |
| 引脚 2 | IS1 — Channel 1 current-sense / diagnostic output |
| 引脚 3 | IN1 — Channel 1 logic input (CMOS-level) |
| 引脚 4 | GND — Ground reference |
| 引脚 5 | Vbb — Battery / supply voltage (8 V to 36 V) |
| 引脚 6 | Vbb — Battery / supply voltage (tied to pin 5) |
| 引脚 7 | IN2 — Channel 2 logic input (CMOS-level) |
| 引脚 8 | IS2 — Channel 2 current-sense / diagnostic output |
| 引脚 9 | OUT2 — Channel 2 output to load (high-side switch drain) |
| 引脚 10 | NC — Not connected (per datasheet) |
| 引脚 11 | NC — Not connected (per datasheet) |
| 引脚 12 | NC — Not connected (per datasheet) |
| 引脚 13 | NC — Not connected (per datasheet) |
| 引脚 14 | EP — Exposed pad - thermal pad, must be soldered to copper for heatsinking |
典型应用
BTT60302ERAXUMA1 适用于 6 应用s: Automotive Body Control Module (BCM), 24V Truck and Commercial Vehicle Power Distribution, Resistive and Inductive Load Driving, Automotive Lighting Drivers, Industrial 24V Power Distribution, Smart Fuse / Electronic Circuit Protection.
Automotive Body Control Module (BCM)
The BTT60302ERAXUMA1 is purpose-built for automotive body control modules that drive lamp, solenoid, and small-motor loads from a 12 V battery rail. Its dual 4 A channels in PG-TDSO-14-31 halve PCB area versus two single-channel switches, while the 32 mΩ Rds(on) keeps conduction losses below 0.5 W per channel at full load, so no external heatsink is needed. AEC-Q100 qualification covers the -40 °C to +150 °C junction range required for under-dash and under-hood body modules.
推荐
24V Truck and Commercial Vehicle Power Distribution
For 24 V commercial-vehicle power rails, the BTT60302ERAXUMA1 operates across 8 V to 36 V with 42 V load-dump tolerance, covering both 12 V jump-start and 24 V nominal truck electrical systems. Its dual-channel architecture suits marker-lamp, headlamp-leveling, and trailer-interface loads where two protected outputs share a common diagnostic bus. Compared with discrete MOSFET + fuse designs, the integrated IS pin cuts BOM cost and PCB area while adding MCU-readable fault detection.
推荐
Resistive and Inductive Load Driving
Driving resistive loads (heaters, PTC warmers) and inductive loads (valves, small solenoids) requires robust demagnetization handling. The BTT60302ERAXUMA1's integrated charge pump fully enhances the N-channel MOSFET down to 8 V supply, and the Smart6 technology includes inductive-load clamp protection. The 32 mΩ Rds(on) keeps thermal rise under 30 °C at 4 A on 1 cm² of copper, suitable for HVAC damper actuators and seat-heater pads in automotive cabins.
推荐
Automotive Lighting Drivers
The BTT60302ERAXUMA1 drives interior and exterior LED lighting modules including dome lights, footwell LEDs, and small signal lamps up to 4 A per channel. The current-sense IS pin enables LED open-load detection and short-to-ground diagnostics required by ISO 26262 functional-safety lighting subsystems. Two channels per IC cut PCB footprint for combined rear-lamp or front-fog-lamp modules, and the 42 V load-dump tolerance withstands jump-start transients common in 24 V truck systems.
推荐
Industrial 24V Power Distribution
Beyond automotive, the BTT60302ERAXUMA1 fits industrial 24 V power-distribution backplanes where solid-state switching replaces relays for PLC outputs, sensor power, and actuator drivers. The 8 V to 36 V supply range covers both 24 V factory-bus rails and 12 V battery backup systems. Dual independent channels with diagnostic IS output enable per-channel health monitoring over SPI or GPIO to the industrial controller, reducing field service costs in PLC and SCADA installations.
推荐
Smart Fuse / Electronic Circuit Protection
As an electronic replacement for blade fuses, the BTT60302ERAXUMA1 provides resettable overcurrent protection with MCU-readable fault status - eliminating fuse-replacement downtime in service. The integrated short-to-ground, short-to-battery, and overtemperature protection exceed what a passive fuse offers, and the AEC-Q100 qualification extends service life to automotive-grade MTBF targets. Two protected outputs per IC halve the protection-circuit footprint in zone-architectured automotive ECUs.
推荐
推荐产品汇总
工程参考数据： BTT60302ERAXUMA1 ——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 | BTT6030-2ERA | BTS70081EPPXUMA1 | BTS70041EPPXUMA1 | BTS70021EPPXUMA1 | BTS700121ESPXUMA2 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-TDSO-14-31 | PG-TDSO-14-31 - same | PG-TDSO-14-31 - same | PG-TDSO-14-31 - same | PG-TDSO-14-31 - same | PG-TDSO-14-31 - same |
| Number of Channels | 2 | 2 | 1 | 1 | 2 | 1 |
| Continuous Load Current (per channel) | 4 A | 4 A | 8 A | 4 A | 2.1 A | 12 A |
| Operating Supply Voltage | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V | 8 V to 36 V |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
| Technology Family | Smart6 (PROFET+ 24V) | Smart6 (PROFET+ 24V) | Smart6 (PROFET+ 24V) | Smart6 (PROFET+ 24V) | Smart6 (PROFET+ 24V) | Smart6 (PROFET+ 24V) |
| Diagnostic Output | IS pin (current sense) | IS pin (current sense) | IS pin (current sense) | IS pin (current sense) | IS pin (current sense) | IS pin (current sense) |
关键差异点
- Dual-channel integration in one PG-TDSO-14-31 package （对比 Two BTS6143D single-channel switches)
- Smart6 technology with enhanced diagnostic IS pin （对比 Older PROFET BTS6143D (Smart3))
- Low 32 mΩ Rds(on) per channel （对比 BTS70021EPPXUMA1 dual-channel at higher Rds(on))
设计说明
Estimated: at 4 A continuous load per channel with 32 mΩ on-state resistance, conduction loss per channel is approximately 0.51 W (P = I²R = 16 × 0.032). Both channels together dissipate about 1.02 W. The PG-TDSO-14-31 package requires a minimum 1 cm² of copper on the exposed pad to keep junction-to-ambient thermal resistance around 50 °C/W. Without this copper area, junction temperature can exceed 150 °C under full load in high-ambient under-hood installations.
Place a 100 nF X7R ceramic bypass capacitor as close as possible to the Vbb pins (5 and 6) to suppress supply transients from load-dump and inductive kickback events. Route the IS pin trace away from switching nodes (Vbb, OUT1/2) and add an RC low-pass filter (1 kΩ + 100 nF) at the MCU ADC input to clean up PWM edge ringing. The exposed pad must be soldered to a continuous copper plane with thermal vias to inner layers for optimal heat spreading.
Do not operate the BTT60302ERAXUMA1 below 8 V supply - the internal charge pump cannot fully enhance the N-channel MOSFET, resulting in high Rds(on) and thermal runaway. Do not exceed 42 V load-dump transients for sustained periods. The IS pin is analog and requires the diagnostic pull-up resistor to Vlogic (typically 5 V or 3.3 V MCU rail); do not leave it floating, as this disables open-load detection. When driving inductive loads (solenoids, valves), ensure the device's internal clamp energy rating is not exceeded for your specific load inductance.
Keep OUT1 and OUT2 traces short and wide to minimize parasitic inductance - long output traces cause voltage ringing that can exceed the OUT pin absolute-maximum ratings during PWM switching. Star-ground the GND pin and IS-pin analog ground near the MCU ADC ground reference to avoid digital switching noise coupling into the diagnostic signal. Place the input logic signals (IN1, IN2) on a separate trace layer or far from the OUT traces to prevent crosstalk.
合规信息
AEC-Q100 qualified for automotive applications per Infineon product page. RoHS and REACH compliant per Infineon material declaration. Halogen-free and lead-free per PG-TDSO-14-31 package datasheet.
