TL431AFDT数据手册集成电路（IC）的电压基准规格书PDF

描述 Description

Three-terminal shunt regulator family with an output voltage range between
Vref = 2.495 V and 36 V, to be set by two external resistors.
Reference voltage
tolerance (Vref)
Temperature range (Tamb) Pinning configuration
0 ° C to 70 °C
-40 ° C to 85 °C
-40 ° C to 125 °C
2.0 %
TL431CDBZR
TL431IDBZR
TL431QDBZR
normal pinning
TL431FDT
normal pinning
TL431MFDT
mirrored pinning
1.0 %
TL431ACDBZR
TL431AIDBZR
TL431AQDBZR
normal pinning
TL431AFDT
normal pinning
TL431AMFDT
mirrored pinning
0.5 %
TL431BCDBZR
TL431BIDBZR
TL431BQDBZR
normal pinning
TL431BFDT
normal pinning
TL431BMFDT
mirrored pinning

特性 Features

• Programmable output voltage up to 36 V
• Three different reference voltage tolerances:
• Standard grade: 2 %
• A-Grade: 1 %
• B-Grade: 0.5 %

• Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)
• Low output noise
• Typical output impedance: 0.2 Ω
• Sink current capability: 1 mA to 100 mA
• AEC-Q100 qualified (grade 1)

应用 Application

• Shunt regulator
• Precision current limiter
• Precision constant current sink
• Isolated feedback loop for Switch Mode Power Supply (SMPS)