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| 型號： | ADP1875ARQZ-0.3-R7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | ROHS COMPLIANT, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 33/44頁 |
| 文件大?。?/td> | 2475K |
| 代理商： | ADP1875ARQZ-0.3-R7 |
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ADP1874/ADP1875
Rev. 0 | Page 39 of 44
DIFFERENTIAL SENSING
Because the ADP1874/ADP1875 operate in valley current-
mode control, a differential voltage reading is taken across the
drain and source of the lower-side MOSFET. The drain of the
lower-side MOSFET should be connected as close as possible to
the SW pin (Pin 15) of the IC. Likewise, the source should be
connected as close as possible to the PGND pin (Pin 13) of the
IC. When possible, both of these track lines should be narrow
and away from any other active device or voltage/current path.
09
34
7-
0
87
LAYER 1: SENSE LINE FOR SW
(DRAIN OF LOWER MOSFET)
LAYER 1: SENSE LINE FOR PGND
(SOURCE OF LOWER MOSFET)
PGND
SW
Figure 96. Drain/Source Tracking Tapping of the Lower-Side MOSFET for CS
Amp Differential Sensing (Yellow Sense Line on Layer 2).
Differential sensing should also be employed between the
outermost output capacitor and the feedback resistor divider
(see Figure 93 and Figure 94). Connect the positive terminal of
the output capacitor to the top resistor (RT). Connect the negative
terminal of the output capacitor to the negative terminal of the
bottom resistor, which connects to the analog ground plane as
well. Both of these track lines, as previously mentioned, should
be narrow and away from any other active device or voltage/
current path.
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相關(guān)代理商/技術(shù)參數(shù) |
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| ADP1875ARQZ-1.0-R7 | 功能描述:IC REG CTRLR BUCK PWM CM 16-QSOP RoHS:是 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:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| ADP1876 | 制造商:AD 制造商全稱:Analog Devices 功能描述:600 kHz Dual Output Synchronous Buck |
| ADP1876ACPZ-R7 | 功能描述:IC REG CTRLR BUCK PWM CM 32LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
| ADP1876-EVALZ | 功能描述:BOARD EVAL FOR ADP1876 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:* 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:DC/DC，步降 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):降壓 頻率 - 開關(guān):250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND |
| ADP1877 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Output Synchronous Buck PWM Controller With Tracking |
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