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參數(shù)資料
| 型號： | ISL658090EVAL1 |
| 廠商： | Intersil Corporation |
| 英文描述： | Integrated Power Stage |
| 中文描述： | 集成功率級 |
| 文件頁數(shù)： | 14/31頁 |
| 文件大?。?/td> | 1391K |
| 代理商： | ISL658090EVAL1 |
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Above the resonant frequency of the output LC filter (10kHz
in this case) the gain falls at a rate of 40dB/decade and the
phase shift approaches –180 degrees. At a frequency
above the F = 1/(2eC*ESR) = 500kHz in this case) the gain
slope changes to –20dB/decade and the phase shift
approaches –90 degrees.
In a closed loop control system, the output is subtracted from
a reference voltage to produce an error voltage. The error
voltage is amplified and fed to the output stage. In a buck
regulator the output stage consists of a Pulse Width
Modulator (PWM), switching transistors (typically
MOSFETs), series inductor(s) and output capacitors. High
gain feedback reduces variation in the output due to
changes in input voltage, load current and component
values. However, high gain at high frequencies can cause
excessive over shoot in response to transients ( if phase
shift > 120 degrees and gain > 0dB ) or oscillation ( if phase
shift > 180 degrees and gain > 0dB ). The trade off in
designing the loop compensation is to achieve fast response
to transients without excessive overshoot or oscillation.
The ISL6580 subtracts a reference from the output voltage
to produce an error voltage. It converts the error voltage to a
6 bit digital number and sends it to the ISL6590 controller.
The controller processes the error number numerically to
provide gain (Proportional), phase lag (Integration) and
phase lead (Derivative) functions. This forms the digital PID
control.
Adjusting The Digital PID
Frequency response of the digital PID compensator is
determined by the Kp, Ki, Kd factors. These factors are
stored in nonvolatile memory and are loaded in the controller
at power on reset. The system designer sets the PID
compensators frequency response using user interface
software. The designer enters the frequencies of the
desired poles and zeros and user interface software
calculates the Kp, Ki and Kd factors. the software will
calculate and display the frequency response of the
feedback and the closed loop system.
FIGURE 12. TYPICAL ANALOG VOLTAGE LOOP BLOCK
DIAGRAM
FIGURE 13. DIGITAL CONTROL LOOP BLOCK DIAGRAM
FIGURE 14. TYPICAL ANALOG ERROR AMPLIFIER AND
COMPENSATION
FIGURE 15. DIGITAL PID COMPENSATOR
ISL6580
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL658090EVAL2 | Integrated Power Stage |
| ISL658090EVAL3 | Integrated Power Stage |
| ISL6580 | Dual Low-Noise Wide-Bandwidth Precision Amplifier 8-SOIC -40 to 85 |
| ISL6580CR | Integrated Power Stage |
| ISL6580CR-T | Integrated Power Stage |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6580CR | 功能描述:IC DRIVER HIGH SIDE FET 56-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:高端/低端驅(qū)動器 輸入類型:SPI 輸出數(shù):8 導(dǎo)通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:PG-DSO-20-45 包裝:帶卷 (TR) |
| ISL6580CR-T | 功能描述:IC DRIVER HIGH SIDE FET 56-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:高端/低端驅(qū)動器 輸入類型:SPI 輸出數(shù):8 導(dǎo)通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:PG-DSO-20-45 包裝:帶卷 (TR) |
| ISL6590DR-T | 功能描述:IC REG CTRLR BST PWM VM 64-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF) |
| ISL6592DNZ-T | 功能描述:IC DIGTL MULTIPHASE CTRLR 48LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
| ISL6592DNZ-TR5196 | 功能描述:IC DIGTL MULTIPHASE CTRLR 48LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR) |
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