LX6431B集成電路（IC）的電壓基準(zhǔn)規(guī)格書(shū)PDF中文資料

LX6431B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LX6431B電壓基準(zhǔn)產(chǎn)品屬于基準(zhǔn)電壓源系列，可通過(guò)相對(duì)較不穩(wěn)定的電源提供穩(wěn)定的電勢(shì)，電壓值始終保持恒定，以便在測(cè)量、控制和類(lèi)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(lèi)用途。用作比較標(biāo)準(zhǔn)時(shí)，若輸出電流容量或?qū)嶋H負(fù)載電流增大，其性能通常會(huì)降低。

DESCRIPTION

The LX6431 series precision adjustable three terminal shunt voltage regulators are pin-to-pin compatible with the industry standard TL431, but with significant improvements. The LX6431 design has eliminated regions of instability common to older generation shunt regulator products like the TL431. Designs are made simpler by eliminating the task of insuring capacitive loads, and output voltage and cathode currents don’t combine for unstable operation. The capacitor value is chose simply to give the best load transient response without the possibility of instability.

KEY FEATURES

■ Unconditionally Stable for All Cathode To Anode Capacitance Values

■ Reduced Reference Input Current Allowing The Use of Higher Value Divider Resistors (0.5μA)

■ Initial Voltage Reference Accuracy of 0.4 (LX6431B)

■ Sink Current Capability 0.6mA to 100mA

■ Typical Output Dynamic Impedance Less Than 100m?

■ Adjustable Output Voltage From 2.5V to 36V