BTH62001ENAXUMA1 - 48V 200mΩ 1.7A Smart High-Side Switch | Infineon
MPN： BTH62001ENAXUMA1 ✓ 啟用中BTH62001ENAXUMA1 概覽
A smart high-side switch is a type of power distribution switch (PDS) that replaces an electromechanical relay, fuse and discrete MOSFET circuit by integrating the power transistor, gate driver, current sensing, and protection logic into a single monolithic IC. The PROFET™ + 48V family sits within the broader power management IC hierarchy as a protected power switch IC, which itself falls under the umbrella of automotive power distribution and load-driving semiconductors. This integration reduces PCB area, eliminates wiring harnesses, and provides MCU-readable diagnostics for ISO 26262 functional-safety compliance.
Key features of the BTH62001ENAXUMA1 include a 200 mΩ on-state resistance, very low standby current, configurable current-limit and over-temperature shutdown, dedicated fault feedback, and a current-sense pin that delivers a proportional analog output proportional to the load current. The device is AEC-Q100 qualified and ISO 26262-ready, suiting it for safety-relevant automotive loads. PG-TDSO-8-31 is an exposed-pad surface-mount package that keeps RthJA low enough for direct soldering on FR4 without an external heatsink at typical 48 V load currents.
Internally, the BTH62001ENAXUMA1 uses a vertical N-channel DMOS output stage driven by a charge-pump gate driver, allowing true high-side switching from a single 48 V supply. The current-sense output is implemented with a sense-FET topology that mirrors a small fraction of the load current, providing accurate diagnosis without a discrete shunt resistor. The protection block includes load-dump survival up to 60 V, reverse-battery robustness, and dynamic thermal protection that folds back current during overheating.
Typical automotive applications include 48 V e-fuse replacement, PTC heater driving, electric water pump control, electric turbocharger wastegate actuation, and other resistive, inductive, or capacitive 48 V loads. The active-high/active-low input logic allows direct connection to an automotive MCU or SBC without additional glue logic. For optimal thermal performance, the exposed pad must be soldered to a copper area of at least 1 cm² on the PCB. The BTH62001ENAXUMA1 datasheet is available from Infineon's official product page.
When designing with this device, observe the 60 V absolute maximum input rating and provide adequate reverse-battery protection on the supply pin, as automotive 48 V board nets are subject to load-dump transients. The current-sense resistor value should be chosen to keep the sense voltage within the MCU ADC range at the maximum expected load current.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 BTH62001ENAXUMA1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： BTH62001ENAXUMA1 （相同外形與佔位） — 差異在於 Package, Number of Channels, Operating Temperature Range, Operating Voltage Range, Protection Features.
BTH6200-1ENA
✅ 直接替換📋 參考替代品（不在目錄中）
BTH60801EPLXUMA1
✅ 直接替換聯絡詢價
查看資料表 →BTS710336ESAXUMA1
✅ 直接替換聯絡詢價
查看資料表 →BTS70402EPGXUMA1
✅ 直接替換聯絡詢價
查看資料表 →BTS51202EKAXUMA1
✅ 直接替換聯絡詢價
查看資料表 →BTH62001ENAXUMA1 最大額定值與電氣特性
| Manufacturer | Infineon Technologies |
| Product Family | PROFET™ + 48V |
| 功能 | Smart High-Side Power Switch |
| 通道數 | 1 |
| On-State Resistance (RDS(on) @ 25 °C) | 200 mΩ (typical) |
| Operating Voltage Range | 8 V to 60 V |
| Continuous Load Current | 1.7 A |
| 輸出配置 | High-Side |
| Input Type | Active-High / Active-Low |
| Current Sense | Analog proportional output |
| Protection Features | Over-current, over-temperature, over-voltage, load-dump, reverse battery |
| Automotive Qualification | AEC-Q100 |
| Functional Safety | ISO 26262-ready |
| 封裝 | PG-TDSO-8-31 |
| 安裝類型 | Surface Mount |
| 工作溫度範圍 | -40 °C to +150 °C (junction) |
| RoHS 狀態 | Compliant |
BTH62001ENAXUMA1 腳位配置
| 腳位 1 | NC — Not connected (per datasheet) |
| 腳位 2 | VBB — Battery supply input (8 V to 60 V) |
| 腳位 3 | DEN — Diagnostic enable input |
| 腳位 4 | IN — Logic input (active-high / active-low) |
| 腳位 5 | IS — Current sense analog output |
| 腳位 6 | OUT — Power output to load |
| 腳位 7 | GND — Ground reference |
| 腳位 8 | NC — Not connected (per datasheet) |
典型應用
BTH62001ENAXUMA1 適用於 6 應用s: 48 V Board-Net e-Fuse Replacement, Automotive PTC Heater Driver, 48 V Electric Water Pump Control, Electric Turbocharger Wastegate Actuator, 48 V Sensor and Solenoid Loads, 48 V Lighting Driver Module.
48 V Board-Net e-Fuse Replacement
The BTH62001ENAXUMA1 is purpose-built for replacing automotive e-fuses, electromechanical relays and discrete MOSFET+shunt circuits in 48 V mild-hybrid board nets. Its 200 mΩ RDS(on) and 1.7 A continuous current rating cover typical 48 V auxiliary loads, while the integrated over-current, over-temperature and reverse-battery protection eliminate the need for an external fuse or TVS clamp. The current-sense pin delivers a proportional analog output to the MCU ADC, enabling real-time load-health monitoring and predictive maintenance. According to the Infineon datasheet, the part withstands 48 V load-dump transients within the 60 V absolute maximum, so it can be placed directly across the 48 V battery rail without additional surge protection.
推薦
Automotive PTC Heater Driver
The BTH62001ENAXUMA1 directly drives 48 V PTC cabin heaters and seat-heater pads up to 1.7 A continuous. Its integrated thermal foldback protects the PTC element from overheating during cold-start inrush, while the analog current-sense output allows the HVAC controller to verify heater integrity. The 8-60 V operating range covers cold-crank at 8 V and load-dump at 60 V, so the heater can stay online through the full automotive voltage envelope. The exposed-pad PG-TDSO-8-31 package dissipates the 5-10 W conduction loss on standard FR4 copper with a 1 cm² thermal pour, no heatsink required.
推薦
48 V Electric Water Pump Control
The BTH62001ENAXUMA1 is an excellent fit for driving 48 V electric water pumps and coolant circulation pumps in mild-hybrid thermal management loops. The 200 mΩ RDS(on) keeps conduction loss under 1 W at 1.7 A, well within the package's thermal envelope, while the over-current protection trips in microseconds if the pump stalls. The active-high/active-low logic input connects directly to a body-domain MCU or SBC without glue logic, and the IS pin provides real-time pump-speed proxy via current ripple. With 60 V load-dump survival, the part tolerates jump-start and alternator overshoot events on the 48 V rail.
推薦
Electric Turbocharger Wastegate Actuator
The BTH62001ENAXUMA1 drives 48 V electric wastegate actuators and variable-geometry turbocharger motors in mild-hybrid powertrains. The high-side switch topology grounds the actuator body to chassis, simplifying harness routing, and the 1.7 A rating matches typical small 48 V motor inrush. The integrated diagnostic enable pin allows the ECU to put the switch in a low-power standby state during engine-off, dropping quiescent current to microampere levels. AEC-Q100 qualification and ISO 26262-readiness support safety analysis for the actuator control loop.
推薦
48 V Sensor and Solenoid Loads
The BTH62001ENAXUMA1 is well suited to drive 48 V sensors, solenoid valves, and small actuator loads scattered across a mild-hybrid vehicle. The 1.7 A continuous current covers most proportional valves and small DC solenoids, while the 200 mΩ RDS(on) keeps dissipation low enough for distributed mounting near each load. The current-sense output allows the central body controller to detect open-circuit, short-circuit and over-current conditions on each branch without a per-load diagnostic line. The PG-TDSO-8-31 footprint is small enough to fit in inline connector housings for harness-mounted smart-switch modules.
推薦
48 V Lighting Driver Module
The BTH62001ENAXUMA1 powers 48 V LED headlamp drivers, daytime running lights and signal-lamp modules, replacing legacy 12 V architectures with a single 48 V high-side switch. The integrated current-sense output allows closed-loop LED current regulation by feeding back to a constant-current controller, and the 60 V load-dump survival protects the LED string from jump-start transients. AEC-Q100 Grade 1 qualification allows placement in the engine compartment, headlamp housing or wheel-well where ambient temperatures exceed 105 °C. The exposed-pad package mounts on standard FR4 with a 1 cm² copper pour, keeping the BOM simple.
推薦
推薦產品摘要
工程參考資料，適用於 BTH62001ENAXUMA1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | BTH6200-1ENA | BTH60801EPLXUMA1 | BTS710336ESAXUMA1 | BTS70402EPGXUMA1 | BTS51202EKAXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-TDSO-8-31 | PG-TDSO-8-31 - same | PG-TDSO-8-31 - same | PG-TDSO-8-31 - same | PG-TDSO-8-31 - same | PG-TDSO-8-31 - same |
| Operating Voltage Range | 8 V to 60 V | 8 V to 60 V | 8 V to 60 V | 4 V to 28 V | 4 V to 28 V | 4.5 V to 28 V |
| Number of Channels | 1 | 1 | 1 | 4 | 4 | 2 |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Current Sense Output | Yes (analog IS pin) | Yes (analog IS pin) | Yes (analog IS pin) | Yes (analog IS pin) | Yes (analog IS pin) | Yes (analog IS pin) |
主要差異化特點
- 48 V board-net capable with same package as 12 V/24 V PROFET family (對比BTS51202EKAXUMA1)
- 200 mΩ RDS(on) optimized for sub-2 A continuous loads (對比BTH60801EPLXUMA1)
- Single-channel high-side switch for distributed load control (對比BTS710336ESAXUMA1)
設計說明
At 1.7 A continuous load current with a 48 V supply and 200 mΩ RDS(on), the steady-state conduction loss is approximately 0.58 W. The PG-TDSO-8-31 package has a typical RthJA around 40 K/W on a standard JEDEC 2s2p test board, so the junction temperature rise is roughly 23 °C above ambient, which is acceptable for under-hood operation. The exposed thermal pad MUST be soldered to a copper pour of at least 1 cm² on the top layer (and ideally stitched with thermal vias to inner planes) to achieve this RthJA. Without the pad soldered, RthJA can rise above 90 K/W, causing the thermal foldback to trip at moderate loads.
Place the VBB decoupling capacitor (1 µF X7R 100 V minimum) within 5 mm of pin 2 to suppress voltage transients during switching. The IS pin output requires a low-pass filter (10 kΩ + 100 nF) to reject switching-noise spikes before the MCU ADC. Route the high-current OUT trace on the top layer directly to pin 6, and avoid using long thin traces that add parasitic inductance. According to the Infineon datasheet, the exposed pad is pin 9 (counted from the bottom) and is the primary thermal path - this is consistent with the PG-TDSO-8-31 mechanical drawing.
Do not connect the BTH62001ENAXUMA1 directly across a 12 V or 24 V battery without verifying that the load is genuinely 48 V - the part will function but its 200 mΩ RDS(on) is over-spec'd for low-voltage applications where the lower-resistance BTS51202EKAXUMA1 would dissipate less heat. Do not exceed the -60 V reverse-battery absolute maximum on VBB - in some 48 V board nets inductive kickback can exceed this; add an external reverse-battery FET for harness-mounted applications. Do not leave the DEN pin floating - either tie it to VBB or to GND through a pull resistor, depending on whether diagnostics are required at all times.
合規資訊
AEC-Q100 qualified per Infineon product page. ISO 26262-ready per PROFET + 48V family documentation. RoHS and REACH compliance per Infineon product declaration.
