參數(shù)資料
型號(hào)： ISPPAC-POWR6AT6-01NN32I
廠商： LATTICE SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： In-System Programmable Power Supply Monitoring and Margining Controller
中文描述： 6-CHANNEL POWER SUPPLY SUPPORT CKT, QCC32
封裝： 5 X 5 MM, LEAD FREE, QFN-32
文件頁(yè)數(shù)： 16/34頁(yè)
文件大小： 906K
代理商： ISPPAC-POWR6AT6-01NN32I
Lattice Semiconductor
ispPAC-POWR6AT6 Data Sheet
16
It should also be noted that whenever the VPS0 and VPS1 pins are not both low, they effectively stop closed-loop
trim the same way the CLTENb pin does when it goes high. That is, whenever an alternate trim mode (other than
VPS0=0 and VPS1=0) is selected, the trim process is suspended as described above. Assuming the CLTENb pin
is asserted, when both VPS0 and VPS1 are low again, closed-loop trimming will resume where it left off.
It is recommended that the CLTENb pin not be activated until after any necessary power supply sequencing is
completed to prevent an “open loop” condition from occurring. Otherwise, if control of when closed-loop trimming
begins is not critical, the CLTENb pin can be tied to ground. This will cause closed-loop trim to begin immediately
after the initial power on of the ispPAC-POWR6AT6 is completed.
Closed Loop Trim Start-up Behavior
The contents of the closed loop register, upon power-up, will contain a value 80h (Bipolar-zero) value. The DAC
output voltage will be equal to the programmed Offset voltage. Usually under this condition, the power supply out-
put will be close to its nominal voltage. If the power supply trimming should start after reaching its desired output
voltage, the corresponding DAC code can be loaded into the closed loop trim register through I
2
C (same address
as the DAC register I
2
C mode) before activating the CLTENb pin.
Details of the Digital to Analog Converter (DAC)
Each TrimCell has an 8-bit bipolar DAC to set the trimming voltage (Figure 11). The full-scale output voltage of the
DAC is +/- 320 mV. A code of 80H results in the DAC output set at its bi-polar zero value.
The voltage output from the DAC is added to a programmable offset value and the resultant voltage is then applied
to the trim output pin. The offset voltage is typically selected to be approximately equal to the DC-DC converter
open circuit trim node voltage. This results in maximizing the DC-DC converter output voltage range.
The programmed offset value can be set to 0.6V, 0.8V, 1.0V or 1.25V. This value selection is stored in E
2
CMOS
memory and cannot be changed dynamically.
Figure 11. Vbpz Offset Voltage is Added to DAC Output Voltage to Derive Trim Pad Voltage
RESET Command via JTAG or I
2
C
Issuing a reset instruction via JTAG or I
2
C will force all trim outputs selected for digital closed-loop trim control back
to their initial output level (code 80h + Vbpz). After that, assuming the CLTENb is still asserted, digital closed loop
DAC
7 bits + Sign
(-320mV to +320mV)
Vbpz Offset
(0.6V,0.8V,1.0V,1.25V)
E
2
CMOS
8
TRIMx
Pad
From
Trim Registers
TrimCell X
相關(guān)PDF資料
PDF描述
ISPPAC10 In-System Programmable Analog Circuit
ISPPAC10-01PI In-System Programmable Analog Circuit
ISPPAC10-01SI In-System Programmable Analog Circuit
ISPPAC20 In-System Programmable Analog Circuit
ISPPAC20-01J In-System Programmable Analog Circuit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ispPAC-POWR6AT6-01S32I 功能描述:監(jiān)控電路 Prec Prog Pwr Supply Seq Mon IND RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
ispPAC-POWR6AT6-01SN32I 功能描述:監(jiān)控電路 Prec Prog Pwr Supply Seq Mon Trim IND RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
ISPS5E44MFA 功能描述:CONN PLUG MALE 4POS GOLD IDC 制造商:panduit corp 系列:IndustrialNet? 包裝:散裝 零件狀態(tài):在售 連接器類型:插頭，公引腳 針腳數(shù):4 外殼尺寸 - 插件:M12-4 外殼尺寸，MIL:- 安裝類型:自由懸掛 端接:IDC 緊固類型:有螺紋 朝向:D 侵入防護(hù):IP65/67 - 防塵，耐水，防水 外殼材料，鍍層:鋅鑄件，鍍鎳 觸頭鍍層:金 特性:- 電壓 - 額定:50V 額定電流:4A 觸頭鍍層厚度:- 工作溫度:-25°C ~ 85°C 標(biāo)準(zhǔn)包裝:1
ISPS688FA 功能描述:8-POSITION, INDUSTRIALNET, RJ45 制造商:panduit corp 系列:IndustrialNet? 包裝:散裝 零件狀態(tài):在售 連接器類型:插頭 電纜類型:圓形線纜，實(shí)心或絞合導(dǎo)線 針腳/觸頭數(shù):8p8c（RJ45，以太網(wǎng)） 特性:線纜管理 屏蔽:屏蔽 等級(jí):Cat6a 侵入防護(hù):IP20 端接:IDC 長(zhǎng)度:2.059"（52.30mm） 顏色:- 線規(guī):22-27 AWG 觸頭鍍層:金 觸頭鍍層厚度:31.5μin（0.80μm） 觸頭材料:磷青銅 外殼材料:聚碳酸脂（PC） 屏蔽材料:黃銅 標(biāo)準(zhǔn)包裝:1
ISPS688FAS 功能描述:8-POSITION, INDUSTRIALNET, RJ45 制造商:panduit corp 系列:IndustrialNet? 包裝:散裝 零件狀態(tài):在售 連接器類型:插頭 電纜類型:圓形線纜，實(shí)心或絞合導(dǎo)線 針腳/觸頭數(shù):8p8c（RJ45，以太網(wǎng)） 特性:線纜管理 屏蔽:屏蔽 等級(jí):Cat6a 侵入防護(hù):IP20 端接:IDC 長(zhǎng)度:2.059"（52.30mm） 顏色:- 線規(guī):22-27 AWG 觸頭鍍層:金 觸頭鍍層厚度:31.5μin（0.80μm） 觸頭材料:磷青銅 外殼材料:聚碳酸脂（PC） 屏蔽材料:黃銅 標(biāo)準(zhǔn)包裝:1
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

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

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*