BTH62004ESAXUMA1 - 4-Ch 200mΩ 48V Smart High-Side Switch | Infineon
MPN： BTH62004ESAXUMA1 ✓ 啟用中BTH62004ESAXUMA1 概覽
A high-side smart switch is a type of power distribution switch that sits between the supply rail and the load, integrating the power MOSFET, gate driver, protection circuitry, and diagnostic feedback into one IC. High-side switches belong to the broader power management semiconductor category, which also includes low-side switches, half-bridges, and H-bridges. Compared with discrete MOSFETs plus fuses, a smart high-side switch reduces PCB area, eliminates the need for external protection components, and provides the ECU with real-time load-current and fault-status information through the IS pin.
Key features include 200 mΩ typical RDS(on) per channel at 25 °C, 1 A nominal load current per channel, integrated charge pump for full N-channel drive, current sense ratio with high accuracy, and programmable restart behavior after fault clearing. The PG-TSDSO-24-21 package uses an exposed thermal pad that reduces junction-to-PCB thermal resistance, allowing the four channels to operate at full current without external heatsinking in typical automotive body-control environments.
The architecture combines an N-channel vertical power MOSFET with a charge pump, logic interface, and dedicated protection/diagnosis state machine per channel. The device is optimized for 48 V systems but tolerates load-dump transients above 60 V, making it suitable for both 24 V and 48 V board nets in commercial vehicles, mild hybrids, and 48 V zonal architectures.
Typical applications include 48 V body-control modules driving LED arrays, small motors, and resistive heaters, as well as zonal ECUs in 48 V mild-hybrid vehicles. The four independent channels make it suitable for driving four separate loads from one compact IC, reducing BOM count and ECU footprint.
When designing with the BTH62004ESAXUMA1, ensure the exposed pad is soldered to a sufficient copper pour to keep junction temperature within the -40 °C to +150 °C operating range. The IS pin must be connected to a microcontroller ADC through a recommended filter network for accurate current-sense readings, and unused channels should be tied to GND with IN off.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
直接替換替代品，適用於 BTH62004ESAXUMA1 — 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： BTH62004ESAXUMA1 （相同外形與佔位） — 差異在於 Package, Topology, Operating Temperature Range, Number of Channels, Protection Features.
BTT62004ESAXUMA1
✅ 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 →BTH62004ESAXUMA1 最大額定值與電氣特性
| Product Type | Smart High-Side Power Switch |
| Family | PROFET+ 48V |
| Number of Channels | 4 |
| 拓撲 | 4 x High-Side (1:1) |
| On-State Resistance (RDS(on)) | 200 mΩ typical per channel |
| Nominal Load Current per Channel | 1 A |
| Supply Voltage Range | Up to 54 V |
| Load-Dump Tolerance | 60 V (transient, per datasheet) |
| Power Transistor Technology | N-channel vertical power MOSFET with charge pump |
| Current Sense Diagnosis | Yes (analog IS pin) |
| Protection Features | Over-temperature, over-voltage, short-circuit, reverse battery |
| 工作溫度範圍 | -40 °C to +150 °C junction |
| 封裝 | PG-TSDSO-24-21 (exposed pad) |
| 安裝類型 | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
BTH62004ESAXUMA1 腳位配置
| 腳位 1 | OUT1 — Channel 1 high-side output to load |
| 腳位 2 | OUT2 — Channel 2 high-side output to load |
| 腳位 3 | GND — Ground |
| 腳位 4 | OUT3 — Channel 3 high-side output to load |
| 腳位 5 | OUT4 — Channel 4 high-side output to load |
| 腳位 6 | GND — Ground |
| 腳位 7 | VBB — Battery supply (48 V nominal) |
| 腳位 8 | IS — Current sense / diagnostic output |
| 腳位 9 | NC — Not connected (per datasheet) |
| 腳位 10 | IN4 — Channel 4 logic input |
| 腳位 11 | IN3 — Channel 3 logic input |
| 腳位 12 | NC — Not connected (per datasheet) |
| 腳位 13 | IN2 — Channel 2 logic input |
| 腳位 14 | IN1 — Channel 1 logic input |
| 腳位 15 | NC — Not connected (per datasheet) |
| 腳位 16 | GND — Ground |
| 腳位 17 | NC — Not connected (per datasheet) |
| 腳位 18 | NC — Not connected (per datasheet) |
| 腳位 19 | NC — Not connected (per datasheet) |
| 腳位 20 | NC — Not connected (per datasheet) |
| 腳位 21 | NC — Not connected (per datasheet) |
| 腳位 22 | NC — Not connected (per datasheet) |
| 腳位 23 | NC — Not connected (per datasheet) |
| 腳位 24 | NC — Not connected (per datasheet) |
典型應用
BTH62004ESAXUMA1 適用於 6 應用s: 48V Zonal ECU Body Loads, Automotive LED Lighting Drivers, 48V Resistive Heater Control, Solenoid and Valve Drivers, Small DC Motor Switching (On/Off), 48V Auxiliary Load Switching.
48V Zonal ECU Body Loads
The BTH62004ESAXUMA1's four independent 200 mΩ high-side channels fit 48 V zonal ECU designs where one IC drives multiple body loads (LEDs, mirror adjusters, seat heaters) from a compact footprint. Each channel's 1 A rating covers typical 48 V body-electronics loads, and the 54 V nominal / 60 V transient rating tolerates 48 V mild-hybrid load-dump events. Integrated current sense via the IS pin lets the host MCU perform open-load and short-circuit diagnostics without external shunt resistors, simplifying the BOM for high-volume zonal modules.
推薦
Automotive LED Lighting Drivers
The BTH62004ESAXUMA1 drives four independent LED strings in daytime running lights, position lamps, or interior lighting modules from a 48 V rail. Each channel's 200 mΩ RDS(on) and 1 A capacity handle multi-LED strings up to roughly 15 W per channel, while the integrated PWM-capable input enables dimming via the IN pin. The exposed-pad PG-TSDSO-24-21 package keeps junction temperature low enough to omit an external heatsink, which is critical for space-constrained lamp housings.
推薦
48V Resistive Heater Control
In seat heaters, mirror heaters, and steering-wheel heaters, the BTH62004ESAXUMA1 switches four resistive heating elements with software-controlled PWM. The device's N-channel vertical MOSFET with charge pump provides full enhancement-mode drive, minimizing conduction losses across the heater's operating range. Integrated over-temperature protection and IS-pin diagnostics enable the ECU to detect heater degradation or short circuits, which is essential for meeting automotive functional-safety requirements in heater circuits.
推薦
Solenoid and Valve Drivers
The BTH62004ESAXUMA1 drives four 48 V solenoids or proportional valves in transmission, EGR, or active-suspension systems. Each channel's integrated inductive-load clamp eliminates the need for external freewheeling diodes, reducing PCB area and BOM cost. The 60 V transient tolerance handles the back-EMF spikes generated when 48 V solenoid valves de-energize, and the AEC-Q100 qualification supports use in safety-relevant powertrain subsystems.
推薦
Small DC Motor Switching (On/Off)
For simple on/off control of small 48 V DC motors (window lift, sunroof, washer pump), the BTH62004ESAXUMA1 provides protected high-side switching with stall-current detection via the IS pin. The ECU can identify a stalled or jammed motor by monitoring the analog current-sense output, enabling predictive maintenance. For bidirectional motor control, pair the BTH62004ESAXUMA1 with a companion half-bridge or H-bridge driver such as the TLE94110ESXUMA1.
推薦
48V Auxiliary Load Switching
The BTH62004ESAXUMA1 switches miscellaneous 48 V auxiliary loads (USB chargers, DC-DC converter enables, auxiliary pumps) from a body or zonal ECU. Each channel's logic-level IN pin interfaces directly to 3.3 V or 5 V MCU GPIOs without external level shifters, simplifying the schematic. The exposed-pad PG-TSDSO-24-21 package and 1 A per channel rating support up to four independent auxiliary rails in a single 24-pin footprint, ideal for high-density 48 V body modules.
推薦
推薦產品摘要
工程參考資料，適用於 BTH62004ESAXUMA1 — 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 | BTT62004ESAXUMA1 | BTH60801EPLXUMA1 |
|---|---|---|---|
| Brand | Infineon | Infineon | Infineon |
| Package | PG-TSDSO-24-21 | PG-TSDSO-24-21 | PG-TSDSO-24-21 |
| Number of Channels | 4 | 4 | 1 |
| RDS(on) per Channel | 200 mΩ | 200 mΩ | 200 mΩ |
| Nominal Load Current per Channel | 1 A | 1 A | 1 A |
| Nominal Supply Voltage | 48 V (54 V max) | 24 V (28 V max) | 48 V (54 V max) |
| Current Sense Diagnosis | Yes (IS pin) | Yes (IS pin) | Yes (IS pin) |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Family | PROFET+ 48V | PROFET+ 24V | PROFET+ 48V |
主要差異化特點
- Quad 200 mΩ channels in one 24-pin exposed-pad package (對比BTH60801EPLXUMA1)
- 48 V board-net optimized with 60 V transient tolerance (對比BTT62004ESAXUMA1)
- Integrated IS current-sense pin across all 4 channels (對比Discrete N-channel MOSFET + sense resistor)
設計說明
Estimated: at full load on all four channels (4 × 1 A = 4 A total) with VBB = 48 V and load drop = 24 V, each channel dissipates P = I² × R = 1² × 0.2 = 0.2 W, for 0.8 W total. The PG-TSDSO-24-21 package's exposed pad must be soldered to at least 1 cm² of 2 oz copper on each PCB layer to stay within the 150 °C junction limit. Without the exposed pad, junction temperature would exceed limits under continuous full-channel load.
Place the VBB decoupling capacitor (≥ 100 nF ceramic, low-ESR) within 5 mm of the VBB pin to suppress voltage transients during channel turn-off of inductive loads. The exposed pad must use thermal vias (typically 9 × 0.3 mm vias) to inner-layer copper planes for optimal heat spreading. Keep high-current OUT traces short and use wide copper pours (≥ 2 mm) to minimize voltage drop and parasitic inductance that can stress the integrated clamp.
Do not float unused channels - tie their IN pins to GND to keep the output MOSFET in the high-impedance state and avoid quiescent-current draw from the gate charge pump. The IS pin shares its output among all four channels; the MCU must time-multiplex ADC sampling to read each active channel separately. Exceeding 54 V on VBB for extended periods can trigger the over-voltage protection latch, requiring a power cycle to reset.
合規資訊
AEC-Q100 qualified per Infineon PROFET+ 48V family datasheet. RoHS and REACH compliant; lead-free and halogen-free per automotive-grade product family standards.
