TL431集成電路（IC）的電壓基準(zhǔn)規(guī)格書PDF中文資料

TL431屬于集成電路（IC）的電壓基準(zhǔn)。由美高森美公司制造生產(chǎn)的TL431電壓基準(zhǔn)產(chǎn)品屬于基準(zhǔn)電壓源系列，可通過相對較不穩(wěn)定的電源提供穩(wěn)定的電勢，電壓值始終保持恒定，以便在測量、控制和類似應(yīng)用中用作比較的標(biāo)準(zhǔn)。其功能行為可能與用于大功率調(diào)節(jié)的線性穩(wěn)壓器相似，但基準(zhǔn)電壓源器件卻不適合用于此類用途。用作比較標(biāo)準(zhǔn)時，若輸出電流容量或?qū)嶋H負(fù)載電流增大，其性能通常會降低。

DESCRIPTION

The TL431/TL431A/TL431B series precision adjustable three terminal shunt voltage regulators are pin-to-pin compatible with the industry standard TL431. The output voltage of this reference is programmable by using two external resistors from 2.5V to 36V. These devices offer low output impedance for improved load regulation.

KEY FEATURES

■ INITIAL VOLTAGE REFERENCE

ACCURACY OF 0.4 (TL431B)

■ SINK CURRENT CAPABILITY 1mA

to 100mA

■ TYPICAL OUTPUT DYNAMIC

IMPEDANCE LESS THAN 200m?;

TYPICAL OUTPUT IMPEDANCE OF

THE TL431B LESS THAN 100m?

■ ADJUSTABLE OUTPUT VOLTAGE

FROM 2.5V TO 36V

■ AVAILABLE IN SURFACE-MOUNT PACKAGES

■ LOW OUTPUT NOISE

■ TYPICAL EQUIVALENT FULL

RANGE TEMPERATURE

COEFFICIENT OF 30ppm/°C

■ DIRECT PIN-TO-PIN

REPLACEMENT FOR INDUSTRY

STANDARD TL431 AND TL1431