參數(shù)資料
型號： NCP5214AMNR2G
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： 2−in−1 Notebook DDR Power Controller
中文描述： 3 A SWITCHING CONTROLLER, 460 kHz SWITCHING FREQ-MAX, DSO22
封裝： LEAD FREE, DFN-22
文件頁數(shù)： 17/31頁
文件大小： 376K
代理商： NCP5214AMNR2G
NCP5214A
http://onsemi.com
17
Supply Voltage Undervoltage Monitor
The IC continuously monitors VCCA and VIN through
VCCA pin and OCDDQ pin respectively. VCCAGD is set
HIGH if VCCA is higher than its preset threshold (derived
from VREF with hysteresis). The IC will enter S5 state if
VCCA fails while in S0 and both VDDQEN and VTTEN
remain HIGH.
Thermal Shutdown
When the chip junction temperature exceeds 150 C, the
entire IC is shutdown. The IC resumes normal operation
only after the junction temperature dropping below 125 C.
Power Good
The PGOOD is an opendrain output of a window
comparator which continuously monitors the VDDQ
output voltage. The PGOOD is pulled low when the VDDQ
rises 12% above or drops 12% below the nominal
regulation point. The PGOOD becomes high impedance
when the VDDQ is within
±
12% of the preset nominal
regulation voltage. A 100 k resistor is recommended to
connect between PGOOD and VCCA as pullup resistor
for logic level output.
Overvoltage Protection
When the VDDQ output is above 106% but below 130%
of the nominal regulation output voltage, the controller
turns off the highside MOSFET and turns on the lowside
MOSFET to discharge the excessive output voltage. When
the VDDQ output voltage goes back down to the nominal
regulation voltage, normal switching cycles are resumed.
When the VDDQ output exceeds 130% (typ) of the
nominal regulation voltage for 4 consecutive internal clock
cycles, the controller sets overvoltage fault, the device is
latched off by turning off both the highside and lowside
MOSFETs. The overvoltage fault latch can be reset and the
controller can be restarted by toggling VDDQEN, VCCA,
or VIN.
Undervoltage Protection
In S3 powersaving mode with reduced switching at
lighter loads, when the VDDQ falls below 94% of the
nominal regulation voltage, the reduced switching
frequency is raised up back to the maximum switching
frequency. When VDDQ voltage is back to nominal
regulation voltage, the normal S3 powersaving operation
is resumed. In both S0 and S3 modes, when the VDDQ falls
below 65% (typ) of the nominal regulation voltage for 4
consecutive internal clock cycles, the undervoltage fault is
set, the device is latched off by turning off both the
highside and lowside MOSFETs. The output is
discharged by the load current. The load current and output
capacitance determine the discharge rate. Cycling
VDDQEN, VCCA, or VIN can reset the undervoltage fault
latch and restart the controller.
相關(guān)PDF資料
PDF描述
NCP5214 2-in-1 Notebook DDR Power Controller
NCP5214MNR2 2-in-1 Notebook DDR Power Controller
NCP5218 2−in−1 Notebook DDR Power Controller
NCP5218MNR2G 2−in−1 Notebook DDR Power Controller
NCP5220 3−in−1 PWM Dual Buck and Linear Power Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP5214EVB 功能描述:電源管理IC開發(fā)工具 ANA NCP5214 EVAL BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
NCP5214MNR2 功能描述:DC/DC 開關(guān)控制器 2-IN-1 NOTBOOK DDR CNTLR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
NCP5214MNR2G 功能描述:DC/DC 開關(guān)控制器 2-IN-1 NOTBOOK DDR CNTLR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
NCP5215 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Dual Synchronous Buck Controller for Notebook Power System
NCP5215MNR2G 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 BUCK CONTROLLER RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*