UDx2981，A2981，UDx2982，A2982
8-Channel Source Drivers8通道源极驱动器

Features特点

• TTL, DTL, PMOS, or CMOS compatible inputsTTL电，二极管晶体管逻辑，PMOS管，或CMOS兼容输入
• 500 mA output source current capability500 mA的输出电流能力的来源
• Transient-protected outputs瞬态保护输出
• Output breakdown voltage to 50 V输出电压击穿至50 V
• DIP or SOIC packagingDIP或SOIC封装

Description说明

Recommended for high-side switching applications that benefit from separate logic and load grounds, these devices encompass load supply voltages to 50 V and output currents to -500 mA.建议高开关应用，从不同的逻辑和负载理由受益，这些设备包括负载电源电压为50 V，而输出电流-500毫安的一面。These 8-channel source drivers are useful for interfacing between low-level logic and high-current loads.这8个通道源驱动程序之间的低级逻辑和大电流负载的接口非常有用。Typical loads include relays, solenoids, lamps, stepper and/or servo motors, print hammers, and LEDs.典型负载包括继电器，螺线管，照明灯，步进和/或伺服电机，打印锤，和LED。

All devices may be used with 5 V logic systems — TTL, Schottky TTL, DTL, and 5 V CMOS.所有器件可以用于5 V逻辑系统 - 的TTL，TTL电肖特基，二极管晶体管逻辑和5V CMOS输出。The device packages offered are electrically interchangeable, and will withstand a maximum output off voltage of 50 V, and operate to a minimum of 5 V. All devices in this series integrate input current limiting resistors and output transient suppression diodes, and are activated by an active high input.该器件封装可供选择是电互换，并会承受过50的最大输出电压，并经营了五，最低的5本系列的所有器件集成了输入电流限流电阻和输出瞬态抑制二极管，由一个激活活跃的高投入。

The suffix “A” indicates an 18-lead plastic dual in-line package with copper lead frame for optimum power dissipation.后缀“A”表示与最佳功耗铜引线框架18引脚塑料双列直插式封装。Under normal operating conditions, these devices will sustain 120 mA continuously for each of the eight outputs at an ambient temperature of +50°C and a supply of 15 V.在正常工作条件下，这些设备将维持120毫安连续八个输出都在环境温度为+50 ° C和15个供应五

The suffix “LW” package is provided in a 20-pin wide-body SOIC package with improved thermal characteristics compared to the 18-pin SOIC version it replaces (100% pin-compatible electrically).后缀“龙运”包中提供了20针宽体改进相比，18引脚SOIC封装版本，它取代了（100％引脚兼容的电子）热特性SOIC封装。The A2982ELW driver is available for operation over an extended temperature range, down to -40°C.该A2982ELW驱动程序操作可在扩展温度范围，低至-40 ° C的

These packages are lead (Pb) free, with 100% matte-tin leadframe plating.这些软件包均无铅（Pb）的自由，采用100％雾锡电镀引脚框。

Typical Application典型应用

Functional Block Diagram功能框图