DS3668 - 四路故障保护外设驱动器

DS3668是TI德州仪器公司的一款外围驱动器和传动器产品，DS3668是四路故障保护外设驱动器，本站介绍了DS3668的封装应用图解、特点和优点、功能等，并给出了与DS3668相关的TI元器件型号供参考。

DS3668 - 四路故障保护外设驱动器 - 外围驱动器和传动器 - 其它接口 - 德州仪器

产品描述

The DS3668 quad peripheral driver is designed for those applications where low operating power, high breakdown voltage, high output current and low output ON voltage are required. Unlike most peripheral drivers available, a unique fault protected circuit is incorporated on each output. When the load current exceeds 1.0A (approximately) on any output for more than a built-in delay time, nominally 12 µs, that output will be shut off by its protection circuitry with no effect on other outputs. This condition will prevail until that protection circuitry is reset by toggling the corresponding input or the enable pin low for at least 1.0 µs. This built-in delay is provided to ensure that the protection circuitry is not triggered by turn-on surge currents associated with certain kinds of loads.

The DS3668's inputs combine TTL compatibility with high input impedance. In fact, its extreme low input current allows it to be driven directly by a MOS device. The outputs are capable of sinking 600 mA each and offer a 70V breakdown. However, for inductive loads the output should be clamped to 35V or less to avoid latch up during turn off (inductive fly-back protection - refer AN-213). An on-chip clamp diode capable of handling 800 mA is provided at each output for this purpose. In addition, the DS3668 incorporates circuitry that guarantees glitch-free power up or down operation and a fail-safe feature which puts the output in a high impedance state when the input is open.

The molded package is specifically constructed to allow increased power dissipation over conventional packages. The four ground pins are directly connected to the device chip with a special copper lead frame. When the quad driver is soldered into a PC board, the power rating of the device improves significantly.

产品特性

Output fault protection
High impedance TTL compatible inputs
High output current-600 mA per output
No output latch-up at 35V
Low output ON voltage (550 mV typ @ 600 mA)
High breakdown voltage (70V)
Open collector outputs
Output clamp diodes for inductive fly-back protection
NPN inputs for minimal input currents (1 µA typical)
Low operating power
Standard 5V power supply
Power up/down protection
Fail-safe operation
2W power package
Pin-for-pin compatible with SN75437

下面可能是您感兴趣的TI德州仪器公司外围驱动器和传动器元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购