意法半导体的智能功率开关具有紧凑、高效、稳健的优势

Intelligent power switches from STMicroelectronics are compact, efficient, and robust

意法半导体的智能功率开关具有紧凑、高效、稳健的优势

STMicroelectronics’IPS4140HQand IPS4140HQ-1are richly featured four-channel intelligent power switches, combining a compact 8 mm x 6 mm footprint, 80mΩ RDS(on) (max.) per channel, and 10.5V-36V operating range with extensive diagnostic and protection features.

意法半导体的IPS4140HQ和IPS4140HQ-1是功能丰富的四通道智能功率开关，采用紧凑型8 mm x 6 mm封装，每通道80mΩ RDS(on) (最大值)，同时具有10.5V-36V工作电压范围，以及广泛的诊断和保护功能。

Suited to driving any kind of resistive, capacitive, or inductive load with one side connected to the ground, the switches are used in programmable logic controllers, peripheral input/output ports of industrial PCs, and numerical control machines.

此类开关适用于驱动容性、阻性和感性负载，该负载一端接本功率开关，另一端接地。可适用于可编程逻辑控制器、工业PC的外设输入/输出端口和数控机床。

With a preset current limit of 0.7A in the IPS4140HQ and 1.0A in the IPS4140HQ-1, the switches also tolerate 41 V maximum applied voltage to enhance system safety and reliability.

IPS4140HQ和IPS4140HQ-1的预设电流限制分别为0.7A和1.0A，开关还可以承受41 V的最大施加电压，以提高系统的安全性和可靠性。

Per-channel protection and diagnostics include short-circuit protection, as well as temperature monitoring that can turn off and restart overloaded channels independently to maximize system-level fault tolerance and simplify automated recovery. In addition, case-overtemperature monitoring that shuts down the entire device restarts channels sequentially to avoid excessive peak-current demand on the power supply. A dedicated open-drain output pin for each channel provides an external indication of overtemperature status.

每通道具有独立保护，包括短路保护，以及每通道温度监测，可独立关闭/重启过载通道，以显著提高系统级容错能力并简化自动恢复。此外，壳温监测会关断整个器件，并按顺序重启通道，以避免电源上的峰值电流需求过大。芯片具有每通道诊断功能，各通道的专用开漏输出引脚可提供过温状态的故障指示。

Further protection and diagnostic features include short-circuit protection, output-current limiting, undervoltage lockout (UVLO), ground-disconnection protection, and input-overvoltage protection. In addition, an output voltage clamp provides fast demagnetization for inductive loads.

高级保护和诊断功能包括短路保护、输出电流限制、欠压锁定 (UVLO)、接地断开保护和输入过压保护。此外，输出电压钳为电感负载提供了快速退磁功能。

Made using ST’s VIPower technology, these intelligent power switches can withstand single-pulse avalanche energy (EAS) up to 2.5 J single channel and I/O pins and are compatible with 5 V and 3.3 V logic. Transient robustness meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (burst), and IEC 61000-4-5 (Surge) IEC 61000-4, and electromagnetic compatibility is compliant with IEC 61131-2 for industrial equipment.

智能功率开关采用意法半导体的VIPower技术制造，可承受高达2.5 J的每通道单脉冲雪崩能量 (EAS)，I/O引脚的兼容5 V和3.3 V逻辑。瞬态稳健性符合IEC 61000-4-2(ESD)、IEC 61000—4-4（快速脉冲）和IEC 61000——4-5（浪涌）IEC 61000-4标准，而电磁兼容性则符合工业设备的IEC 61131-2标准。

The IPS4140HQ and IPS4140HQ-1 are available now in the 8 mm x 6 mm QFN48 package, priced from $ 2.59 for orders of 1000 pieces.

IPS4140HQ和IPS4140HQ-1现已上市，采用8 mm x 6 mm QFN48封装；

Two industrial digital-output expansion cards, X-NUCLEO-DO40A1 and X-NUCLEO-DO41A1, are also available and can be used with STM32 Nucleo microcontroller boards. They are priced $ 41.65 each.

两款工业数字输出扩展卡X-NUCLEO-DO40A1和X-NUCLEO-DO41A1同步推出，可与STM32 NUCLEO微控制器板搭配使用。