L9305集成電路（IC）的線性穩(wěn)壓器控制器規(guī)格書PDF中文資料

L9305屬于集成電路（IC）的線性穩(wěn)壓器控制器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的L9305穩(wěn)壓器 - 線性 + 開關(guān)此產(chǎn)品族中的產(chǎn)品用于構(gòu)建執(zhí)行 DC-DC 轉(zhuǎn)換或電壓調(diào)節(jié)功能的電路，采用的是開關(guān)模式和線性穩(wěn)壓器功能的組合。雖然具體的拓?fù)涓鞑幌嗤?，但此類產(chǎn)品的主要目的是將開關(guān)模式技術(shù)的效率優(yōu)勢與線性穩(wěn)壓技術(shù)的低噪聲特性結(jié)合在一起。

Description

The L9305 is a configurable, monolithic solenoid driver IC designed for the control

of linear solenoids for automatic transmission, electronic stability control, and active

suspension applications. The four channels can be configured as either low side

or high side drivers in any combination. The device includes the power transistor,

recirculation transistor and current sensing for both the power and recirculation

transistor. This architecture guarantees redundancy of the current measurement for

each channel.

The regulated current is programmable in the range of 0-1.5 A (normal range), with a

resolution of 0.25 mA, or 0-2 A (extended range), with a resolution of 0.33 mA. The

user can superimpose configurable dither modulation over the set point current.

Features

? AEC-Q100 qualified

? 4-channel independent LSD/HSD current controlled drivers

– Integrated current sense path

– Current accuracy (in normal range)

? ± 5 mA in 0 to 0.5 A range

? ± 1 in 0.5 A to 1.5 A range

– Current accuracy (in extended range)

? ± 15 mA in 0 to 0.3 A range

? ± 5 in 0.3 A to 0.5 A range

? ± 4 in 0.5 A to 2 A range

– Max driver RDSON 375 mΩ @ 175 °C

– 13-bit current set-point resolution

– Variable and fixed frequency current control

– Programmable dither function

– Selectable driver slew rate control

? Safety features

– High side fail safe ENABLE switch pre-driver with VDS monitoring

– Redundant safe enable path

– Advanced diagnosis and monitoring using BIST

– Temperature sensor and monitoring

– Redundant current sensing for all channels

– Calibration & configuration memory including CRC

– Secure serial communications using address feedback, 5-bit CRC, frame

counter & long/short frame detection

– Register verification

? 32-bit SPI communications with 5-bit CRC message verification

? Package options: PWSSO36, TQFP48

? Full ISO26262 compliant, ASIL-D systems ready