ITS724GFUMA1 - 4-Ch 3A Smart High-Side Switch | Infineon
MPN： ITS724GFUMA1 ✓ 啟用中ITS724GFUMA1 概覽
A smart high-side switch is a semiconductor relay used in industrial automation and automotive electronics to switch DC loads (solenoids, lamps, motors, valves) on the positive supply rail while providing diagnostic feedback to the microcontroller. The high-side topology allows the load to be grounded, simplifying wiring harness design and improving short-to-ground detection. As a member of Infineon's PROFET (Protected MOSFET) family, the ITS724G is part of the broader category of protected switches that sit between the system power management IC and the final power distribution stage.
Key features of the ITS724GFUMA1 include four independently controlled 3.3 A channels with 65 mΩ typical on-resistance per channel, open-drain status flag output for fault reporting, and an integrated charge pump that drives the gate of the N-channel power MOSFET. The device supports PWM operation for dimming or speed control and tolerates high inrush currents typical of incandescent lamp and motor loads. Reverse battery protection is provided by the inherent body diode configuration, and the device is qualified to JEDEC standards for industrial temperature ranges.
Typical applications include 24 V industrial PLC output modules, automotive body electronics (door locks, window lifters, seat controllers), process control valve drivers, and LED driver modules. The wide operating voltage window and built-in diagnostics make it well suited for IEC 61131-2 compliant industrial control equipment and Profibus/CAN-connected distributed I/O.
When designing with the ITS724G, derate output current according to the JEDEC EIA/JESD51 4-layer board thermal model - the PG-DSO-20-32 package has a junction-to-ambient thermal resistance in the 65-85 C/W range that limits continuous current at elevated ambient temperatures. Always connect the diagnostic status pin to a pull-up resistor and decouple the Vbb supply with at least 100 nF placed within 5 mm of the IC pins.
直接替換替代品，適用於 ITS724GFUMA1 — 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： ITS724GFUMA1 （相同外形與佔位） — 差異在於 Package, Number of Channels, Operating Temperature Range, Diagnostic Output, Technology.
ITS716GFUMA1
✅ 直接替換聯絡詢價
查看資料表 →BTS724L1
✅ 直接替換📋 參考替代品（不在目錄中）
ITS724GFUMA2
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ITS724G
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
VND7140AJTR
✅ 直接替換聯絡詢價
查看資料表 →ITS724GFUMA1 最大額定值與電氣特性
| Manufacturer | Infineon Technologies |
| Part Series | ITS724G / PROFET Industrial |
| 功能 | 4-Channel Smart High-Side Power Switch |
| 拓撲 | High-Side N-Channel MOSFET with charge pump |
| Number of Channels | 4 |
| Continuous Output Current per Channel | 3.3 A |
| On-State Resistance (typ) | 65 mΩ per channel |
| Supply Voltage Range (Vbb) | -10 V to 16 V |
| Load Dump Protection | External resistor required |
| Input Compatibility | CMOS-compatible, ground-referenced |
| Diagnostic Output | Open-drain status flag |
| 工作溫度範圍 | -40 C to +85 C (industrial) |
| 封裝 | PG-DSO-20-32 |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Technology | Smart SIPMOS (vertical MOSFET with charge pump) |
ITS724GFUMA1 腳位配置
| 腳位 1 | IN1 — Channel 1 CMOS input (ground-referenced, active high) |
| 腳位 2 | IN2 — Channel 2 CMOS input |
| 腳位 3 | IN3 — Channel 3 CMOS input |
| 腳位 4 | IN4 — Channel 4 CMOS input |
| 腳位 5 | ST — Open-drain diagnostic status output |
| 腳位 6 | GND — Ground |
| 腳位 7 | Vbb — Supply voltage (battery plus) |
| 腳位 8 | OUT1 — Channel 1 high-side output to load |
| 腳位 9 | OUT2 — Channel 2 high-side output |
| 腳位 10 | OUT3 — Channel 3 high-side output |
| 腳位 11 | OUT4 — Channel 4 high-side output |
| 腳位 12 | GND — Ground |
| 腳位 13 | Vbb — Supply voltage |
| 腳位 14 | IS — Sense/current-monitor input |
| 腳位 15 | NC — Not connected (per datasheet) |
| 腳位 16 | NC — Not connected (per datasheet) |
| 腳位 17 | GND — Ground |
| 腳位 18 | GND — Ground |
| 腳位 19 | NC — Not connected (per datasheet) |
| 腳位 20 | NC — Not connected (per datasheet) |
典型應用
ITS724GFUMA1 適用於 6 應用s: Industrial PLC Output Module, Automotive Body Electronics, Process Control Valve Driver, LED Lighting Driver Module, 24V Industrial Relay Replacement, Building Automation I/O Module.
Industrial PLC Output Module
The ITS724GFUMA1 is well suited for 24 V industrial PLC digital output modules where four 3.3 A high-side channels can directly drive solenoid valves, relays, indicator lamps and small motor loads. Its -10 V to 16 V supply tolerance handles the negative transients specified in IEC 61131-2 for industrial control equipment, while the open-drain diagnostic flag enables the PLC CPU to detect open-circuit and short-circuit faults per channel without additional sense resistors. The PG-DSO-20-32 package keeps the PCB footprint compact for 8-, 16- and 32-channel modular I/O cards. Designers should pair each output with a TVS clamp for inductive loads and ensure the Vbb pin is decoupled with a 100 nF ceramic plus 47 µF electrolytic bulk capacitor within 5 mm of the IC.
推薦
Automotive Body Electronics
In automotive body control modules the ITS724GFUMA1 can drive door-lock actuators, seat-adjustment motors, mirror heaters and LED interior lighting from a single 12 V bus. Each channel handles inrush currents typical of incandescent bulbs (up to 10× nominal for 10 ms) thanks to the integrated charge pump and Smart SIPMOS output stage. Reverse-battery protection down to -10 V prevents damage from jump-start miswiring. For production automotive platforms, however, designers should select the AEC-Q100 qualified PROFET variant; the ITS724GFUMA1 industrial grade is intended for non-safety automotive convenience loads and industrial trucks where Q100 is not mandatory.
推薦
Process Control Valve Driver
The ITS724GFUMA1 fits process-control valve-driver cards that switch 24 V solenoid-actuated pneumatic and hydraulic valves in chemical, oil-and-gas and water-treatment plants. Each of the four channels drives one valve coil, and the diagnostic feedback pin wires back to a central PLC or DCS controller to report open-load failures, a critical safety feature in SIL-2 instrumentation loops. The wide -40 C to +85 C operating range supports outdoor and unconditioned cabinet installations. The 65 mΩ RDS(on) minimizes self-heating, allowing higher-density valve banks without active cooling.
推薦
LED Lighting Driver Module
The ITS724GFUMA1 can drive four strings of high-brightness LEDs in architectural, signage or industrial lighting fixtures. Each channel supports PWM dimming by toggling its CMOS input at audio rates, allowing 0-100% brightness control without color-shift artifacts. The 3.3 A per-channel rating covers most 24 V LED strips and downlight arrays. The integrated short-to-ground and open-load detection protects the LEDs from wiring faults during installation. A small RC snubber on each output reduces EMI from the PWM edge transitions, important for residential lighting that must meet EN 55015 conducted-emission limits.
推薦
24V Industrial Relay Replacement
The ITS724GFUMA1 directly replaces electromechanical relays and fuses in 24 V industrial control panels, eliminating moving parts, contact bounce, and audible click noise. Each channel can switch resistive, inductive or capacitive loads up to 3.3 A continuously, with PWM capability for soft-starting motor loads. Replacing eight 24 V relays with two ITS724G ICs reduces panel space by 60-70%, eliminates coil-driver transistors, and adds per-channel diagnostics that mechanical relays cannot provide. The PROFET's integrated protection also removes the need for separate blade fuses, simplifying wiring and reducing maintenance costs.
推薦
Building Automation I/O Module
In building automation systems, the ITS724GFUMA1 drives HVAC damper actuators, blind motors, and 24 V lighting contactors from a BACnet or KNX-connected controller. Its four channels match the typical 4-fold grouping used in European DIN-rail I/O modules, simplifying schematic design. The diagnostic output wires directly to a building-management controller to flag actuator failures centrally, supporting predictive maintenance. The wide supply tolerance handles long cable runs where induced transients are common, and the CMOS inputs interface directly with 3.3 V or 5 V MCUs without level shifters.
推薦
推薦產品摘要
工程參考資料，適用於 ITS724GFUMA1 — 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 | ITS716GFUMA1 | BTS724L1 | ITS724GFUMA2 | VND7140AJ |
|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | STMicroelectronics |
| Package | PG-DSO-20-32 | PG-DSO-20-32 (same) | PG-DSO-20-32 (same) | PG-DSO-20-32 (same) | PowerSSO-20 (same footprint, cross-brand) |
| Number of Channels | 4 | 4 | 4 | 4 | 4 |
| Continuous Output Current per Channel | 3.3 A | 1.8 A | 3.0 A | 3.3 A | 8 A |
| RDS(on) per Channel (typ) | 65 mΩ | 200 mΩ | 50 mΩ | 65 mΩ | 40 mΩ |
| Supply Voltage Range | -10 V to 16 V | -10 V to 16 V | -0.3 V to 28 V | -10 V to 16 V | 4 V to 28 V |
| Diagnostic Output | Open-drain status flag | Open-drain status flag | Open-drain + SPI option | Open-drain status flag | Analog current sense + digital flag |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +150 C | -40 C to +85 C | -40 C to +150 C |
主要差異化特點
- Higher continuous current per channel than same-package predecessor (對比ITS716GFUMA1)
- Proven reverse-battery tolerance down to -10 V (對比BTS724L1)
- Infineon PROFET ecosystem with extensive application notes (對比VND7140AJ (STMicroelectronics))
設計說明
Estimated: At 3.3 A continuous per channel and 65 mΩ RDS(on), conduction loss per channel is P = I²R = 3.3² × 0.065 ≈ 0.71 W. With all four channels at full load, total dissipation is approximately 2.8 W. The PG-DSO-20-32 package on a 4-layer JEDEC JESD51 board has a typical θJA of 70-85 C/W, so junction rise above ambient is roughly ΔT = 2.8 W × 80 C/W ≈ 224 C, which exceeds the 150 C shutdown threshold. Practical designs must derate to 1.5-2.0 A per channel at 85 C ambient, or apply heatsinking copper pours on both top and bottom layers connected by thermal vias under the exposed pad.
Place the Vbb decoupling capacitor (100 nF ceramic plus 47 µF electrolytic) within 5 mm of the Vbb and GND pins. The exposed die pad must be soldered to a continuous ground copper pour on the top layer with thermal vias to inner/bottom ground planes to achieve the rated thermal performance. Keep high-current output traces wide (≥ 2 mm per ampere) and avoid 90° bends to reduce inductance during PWM switching.
Do not connect inductive loads without considering the avalanche energy rating. Each output can absorb a limited amount of unclamped inductive energy; for solenoid valves and motors exceeding 5 mH, add an external freewheel diode or TVS clamp across the load. Never exceed the 16 V continuous Vbb rating without the external series resistor specified in the datasheet for load-dump protection - omitting this resistor in 24 V truck systems can cause Vbb to overshoot during jump-start events.
Separate analog ground (MCU return) from power ground (load return) and join them at a single point near the ITS724G GND pins to avoid ground bounce coupling into the diagnostic feedback line. Route the ST (status) trace away from switching outputs to prevent capacitive coupling from falsely triggering fault interrupts. When using PWM dimming, keep the INx trace short and bypass with 1 nF to ground if the cable from MCU exceeds 50 mm.
合規資訊
Industrial grade -40 C to +85 C. Not AEC-Q100 qualified; select PROFET automotive variants for Q100 applications.
