TL1431QDREP集成电路（IC）的电压基准规格书PDF中文资料

TL1431QDREP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TL1431QDREP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。

1 Features

1• 0.4% Initial Voltage Tolerance

• 0.2-Ω Typical Output Impedance

• Fast Turnon: 500 ns

• Sink Current Capability: 1 to 100 mA

• Low Reference Current (REF)

• Adjustable Output Voltage: VI(ref) to 36 V

• Supports Defense, Aerospace, and Medical

Applications

– Controlled Baseline

– One Assembly and Test Site

– One Fabrication Site

– Available in Military (–55°C to 125°C)

Temperature Range

– Extended Product Life Cycle

– Extended Product-Change Notification

– Product Traceability

2 Applications

• Shunt Regulators

• Temperature-Compensated Comparators

• PWM Converter Reference

• Photodiode Reference Drivers

• Precision Current Limiters

• Precision Current Sink

3 Description

The TL1431-EP device is a precision-programmable

reference with specified thermal stability over the

military temperature range. The output voltage can be

set to any value from VI(ref) (approximately 2.5 V) to

36 V with two external resistors (see Figure 21). 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.