TL1431QDRG4Q1集成电路（IC）的电压基准规格书PDF中文资料

TL1431QDRG4Q1属于集成电路（IC）的电压基准。由美国德州仪器公司制造生产的TL1431QDRG4Q1电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。

Qualified for Automotive Applications

0.4% Initial Voltage Tolerance

0.2-Ω Typical Output Impedance

Fast Turnon . . . 500 ns

Sink Current Capability . . . 1 mA to 100 mA

Low Reference Current (REF)

Adjustable Output Voltage . . . VI(ref) to 36 V

description/ordering information

The TL1431 is a precision programmable reference with specified thermal stability over the automotive

temperature range. The output voltage can be set to any value between VI(ref) (approximately 2.5 V) and 36 V

with two external resistors (see Figure 16). This device has a typical output impedance of 0.2 Ω. Active output

circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener

diodes and other types of references in applications such as onboard regulation, adjustable power supplies,

and switching power supplies.

The TL1431Q is characterized for operation over the full automotive temperature range of −40°C to 125°C.