ISP752TFUMA1 - 1.3A Smart High-Side Switch 200mOhm 6-52V | Infineon
MPN： ISP752TFUMA1 ✓ 啟用中ISP752TFUMA1 概覽
A High-Side Switch is a power distribution switch placed between the supply rail and the load, controlling current flow on the high (positive) side of the circuit. Compared with a low-side switch, the high-side topology keeps the load referenced to ground during fault conditions, improving short-circuit behavior and making it ideal for chassis-grounded industrial loads such as solenoids, valves, lamps, and relay coils. Within the system hierarchy, it belongs to power distribution switches -> load drivers -> power management ICs -> semiconductors.
Key features of the ISP752TFUMA1 include integrated protective functions - overcurrent protection, short-circuit protection, overtemperature shutdown, overvoltage clamp (load-dump), and reverse-battery / reverse-voltage protection. According to the Infineon datasheet, the part also provides diagnostic feedback through a status flag pin, enabling fault detection in safety-critical applications. Typical quiescent current is in the microampere range, and the logic input is TTL/CMOS-compatible. The PG-DSO-8-24 package exposes the die pad for improved thermal dissipation, supporting continuous operation at 1.3 A with proper board layout.
Architecturally, the device combines a vertical N-channel DMOS output stage with CMOS control logic and a charge pump that drives the gate above the supply rail. This single-chip integration is what gives the PROFET family its name (PROtected FET) and replaces discrete MOSFET-plus-fuse-plus-TVS designs with one part.
Typical applications include 24 V industrial automation loads (PLCs, sensor actuators, solenoid valves), automotive body electronics (lamp drivers, motor drivers, relay replacement), process-control field I/O, and any 12 V/24 V/48 V load requiring eFuse-style protection. Designers favor this part for its high integration, small footprint, and the diagnostic output that supports functional-safety architectures.
When designing with the ISP752TFUMA1, observe the input pin (IN) debounce requirements, place a 100 nF bypass capacitor close to Vbb, and ensure the exposed pad is soldered to a sufficient copper area for thermal relief. Inductive loads should use a free-wheeling diode or rely on the integrated clamp.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 ISP752TFUMA1 — 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： ISP752TFUMA1 （相同外形與佔位） — 差異在於 Package, Topology, Diagnostic Output, Protection Features, Output Configuration.
BTS441RGATMA1
✅ 直接替換聯絡詢價
查看資料表 →ISP752T
✅ 直接替換📋 參考替代品（不在目錄中）
BSP742RXUMA2
✅ 直接替換📋 參考替代品（不在目錄中）
ITS4075QEPDXUMA1
✅ 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 →BTS3028SDRATMA1
✅ 直接替換聯絡詢價
查看資料表 →ISP752TFUMA1 最大額定值與電氣特性
| Product Type | Smart High-Side Power Switch |
| Series | PROFET™ Industrial |
| Switch Configuration | 1:1 (Single channel) |
| 輸出配置 | High-Side |
| 輸出類型 | N-Channel |
| On-Resistance (Ron) | 200 mOhm |
| Continuous Load Current | 1.3 A |
| 工作電源電壓 | 6 V to 52 V |
| Input Type | Non-Inverting (logic-level) |
| 工作溫度 | -30 C to +85 C |
| 封裝 / 外殼 | PG-DSO-8-24 (DSO-8 with exposed pad) |
| 安裝類型 | Surface Mount |
| Fault Protection | Overcurrent; Short-Circuit; Overtemperature; Overvoltage (load-dump); Reverse voltage |
| Diagnostic Output | Status flag |
| RoHS 狀態 | Compliant |
ISP752TFUMA1 腳位配置
| 腳位 1 | OUT — Switched output to load |
| 腳位 2 | IN — Logic-level input (non-inverting, CMOS/TTL compatible) |
| 腳位 3 | GND — Ground reference for logic and diagnostics |
| 腳位 4 | ST — Status/diagnostic output flag |
| 腳位 5 | NC — Not connected (per datasheet) |
| 腳位 6 | Vbb — Battery/supply voltage (6 V to 52 V) |
| 腳位 7 | Vbb — Battery/supply voltage (tied to pin 6 internally) |
| 腳位 8 | Vbb — Battery/supply voltage (tied to pin 6 internally) |
| 腳位 EP | Exposed Pad — Thermal pad, must be soldered to PCB copper pour for rated current |
安全工作區 - ISP752T PROFET
典型應用
ISP752TFUMA1 適用於 6 應用s: 24V Industrial Solenoid and Valve Drivers, Automotive 12V Body Electronics (Lamps, Relays, Motors), PLC Digital Output Modules, Sensor and Actuator Power Distribution, Building Automation and HVAC Controls, Relay Replacement in Industrial Control Panels.
24V Industrial Solenoid and Valve Drivers
The ISP752TFUMA1 is well matched to 24 V industrial solenoid and valve drivers because its 6 V to 52 V supply range directly covers 24 V industrial rails, and its 1.3 A continuous current handles typical solenoid coils used in process-control valves. The integrated short-circuit and overtemperature protection prevents coil failure from latched solenoids, while the diagnostic status flag signals the PLC when a fault occurs, enabling predictive maintenance. Compared with a discrete MOSFET plus fuse design, the ISP752TFUMA1 reduces board area by ~60 percent and eliminates the need for a TVS diode across the coil. Place a free-wheeling diode externally if the integrated clamp is insufficient for the specific solenoid's energy rating.
推薦
Automotive 12V Body Electronics (Lamps, Relays, Motors)
In automotive 12 V body-electronic applications such as lamp drivers, mirror motors, and relay replacement, the ISP752TFUMA1's 6 V to 52 V operating range covers the full automotive supply envelope including 24 V truck systems. The 200 mOhm on-resistance limits conduction loss to roughly 0.26 V at 1.3 A, which is critical for headlamp and tail-lamp loads where voltage drop directly affects brightness. The integrated load-dump clamp protects against 40 V transients on the 12 V rail, eliminating an external TVS. The diagnostic flag pin connects to the BCM (body control module) for open-load and short-circuit detection, supporting ISO 26262 functional-safety requirements at the subsystem level.
推薦
PLC Digital Output Modules
PLC digital output modules use the ISP752TFUMA1 to switch 24 V field loads directly from the backplane logic, with each channel driving one actuator. The 1.3 A continuous current covers most relay coil and small-motor loads, while the high-side configuration keeps the load referenced to chassis ground, simplifying field wiring diagnostics. The status flag is read by the PLC CPU to detect wire-break and overload conditions, which is essential for IEC 61131-3 compliant output modules. Compared to electromechanical relays, the ISP752TFUMA1 offers 10x longer mechanical life, no contact bounce, and faster switching speeds (~100 microseconds) for PWM-style proportional control.
推薦
Sensor and Actuator Power Distribution
The ISP752TFUMA1 functions as an eFuse for individual sensor and actuator power rails in distributed industrial I/O, replacing mechanical fuses and PTCs with a resettable, diagnostic-aware switch. Its 200 mOhm Ron keeps voltage drop below 0.3 V at full load, ensuring accurate sensor readings at the load end of long cable runs. The reverse-voltage protection feature prevents damage from miswiring during field installation, a common failure mode in industrial cabinets. With a logic-level IN pin driven directly from a 3.3 V or 5 V microcontroller GPIO, no level shifter is required, simplifying the BOM and reducing PCB area by approximately 50 percent compared to discrete solutions.
推薦
Building Automation and HVAC Controls
In building automation and HVAC controls, the ISP752TFUMA1 drives 24 V damper actuators, valve actuators, and small fan motors from a central controller. The integrated protection suite - overcurrent, short-circuit, overtemperature, and overvoltage - prevents field wiring faults from damaging the controller, while the status flag enables remote diagnostics over BACnet or Modbus. The 6 V to 52 V supply range also supports 48 V telecom-style distributed DC power in modern data center HVAC. The exposed-pad PG-DSO-8-24 package allows surface-mount assembly in high-volume production, reducing per-channel cost compared to through-hole relay solutions.
推薦
Relay Replacement in Industrial Control Panels
The ISP752TFUMA1 is an ideal solid-state replacement for electromechanical relays in industrial control panels, offering silent switching, no contact wear, and integrated protection. With switching times under 100 microseconds versus 10 milliseconds for mechanical relays, it enables PWM-style proportional control of heating elements, lamp dimming, and motor speed. The 1.3 A continuous rating covers most signal-level relay applications, while the diagnostic flag provides feedback that mechanical relays cannot. The PG-DSO-8-24 footprint is compatible with industry-standard SO-8 land patterns, enabling direct PCB replacement of legacy relay circuits without layout changes.
推薦
推薦產品摘要
工程參考資料，適用於 ISP752TFUMA1 — 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 | BTS441RGATMA1 | ISP752T | BSP742RXUMA2 | ITS4075QEPDXUMA1 |
|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-DSO-8-24 | PG-DSO-8-24 (same) | PG-DSO-8-24 (same) | PG-DSO-8-24 (same) | PG-DSO-8-24 (same) |
| Continuous Load Current | 1.3 A | 5 A | 1.3 A | 1.3 A | 1.5 A |
| On-Resistance (Ron) | 200 mOhm | 35 mOhm | 200 mOhm | 200 mOhm | 180 mOhm |
| Operating Voltage | 6 V to 52 V | 6 V to 52 V | 6 V to 52 V | 6 V to 52 V | 6 V to 52 V |
| Diagnostic Output | Yes (Status flag) | Yes (Status flag) | Yes (Status flag) | Yes (Status flag) | Yes (Status flag) |
| Overcurrent Protection | Yes | Yes | Yes | Yes | Yes |
| Reverse Voltage Protection | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -30 C to +85 C | -40 C to +150 C | -30 C to +85 C | -40 C to +150 C | -40 C to +150 C |
| Approx. Unit Price (1k qty) | $1.02 | $2.40 | $1.02 | $1.10 | $1.35 |
主要差異化特點
- Wider 6 V to 52 V operating range with integrated load-dump clamp (對比BTS441RGATMA1)
- Lower on-resistance for higher current headroom (對比BSP742RXUMA2)
- PROFET family heritage with proven reliability (對比ITS4075QEPDXUMA1)
設計說明
Estimated: At 1.3 A continuous load and 200 mOhm Ron, the ISP752TFUMA1 dissipates approximately 0.34 W (P = I^2 x R = 1.3^2 x 0.2). The PG-DSO-8-24 package with exposed pad has a typical theta_JA of around 50 C/W on a standard 4-layer JEDEC test board, yielding a junction temperature rise of ~17 C above ambient. To achieve full 1.3 A at +85 C ambient, the exposed pad must be soldered to at least 1 square cm of copper pour; otherwise thermal derating begins at approximately 0.8 A.
Place a 100 nF ceramic bypass capacitor (X7R) as close as possible to the Vbb pin (pin 6) and a 10 nF on the IN pin for high-frequency noise immunity. The exposed pad must be soldered to a continuous copper plane on the top layer, with thermal vias to inner ground planes for heat spreading. Keep the OUT trace wide (at least 50 mil per ampere) to handle the load current without significant voltage drop. Avoid routing the ST (status) trace near the OUT switching node to prevent false triggering.
Do not exceed 52 V on Vbb, even transiently - although the integrated clamp handles load-dump, sustained overvoltage can damage the gate structure. For inductive loads (solenoids, motors, relays), add a free-wheeling diode across the load or verify the integrated clamp energy rating is sufficient for the application's load inductance. The IN pin is logic-level compatible (3.3 V and 5 V), but leaving IN floating during power-up can cause undefined output state - drive IN from a defined logic source or pull-up/down resistor.
Separate the power ground (Vbb return) from the logic ground (GND pin) using a star-ground topology at the device GND pin to avoid ground bounce coupling into the diagnostic ST output. Route the IN signal trace away from the OUT switching node by at least 3 mm or shield with a ground trace. For multi-channel designs, synchronize the IN signals to avoid simultaneous switching that could cause ground bounce across channels.
合規資訊
RoHS compliant per Infineon product page. PROFET industrial family is not AEC-Q100 qualified - for AEC-Q100 qualified high-side switches, consider BTS5005 family or BTS7002 family. Lead-free and halogen-free per Infineon green-product declaration.
