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參數資料
型號: LM4125
廠商: National Semiconductor Corporation
英文描述: Precision Micropower Low Dropout Voltage Reference
中文描述: 精密微功耗低壓差電壓基準
文件頁數: 5/12頁
文件大小: 300K
代理商: LM4125
Note 1:
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed
test conditions.
Note 2:
Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by T
JMAX
(maximum
junction temperature),
θ
J-A
(junction to ambient thermal resistance) and T
A
(ambient temperature). The maximum power dissipation at any temperature is: PDiss
MAX
= (T
JMAX
T
A
)/
θ
J-A
up to the value listed in the Absolute Maximum Ratings.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin.
Note 4:
Typical numbers are at 25C and represent the most likely parametric norm.
Note 5:
Limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Averaging Outgoing Quality Level (AOQL).
Note 6:
Dropout voltage is the differential voltage between V
OUT
and V
IN
at which V
OUT
changes
1% from V
OUT
at V
IN
= 3.3V for 2.0V, 2.5V and 5V for 4.1V. A
parasitic diode exists between input and output pins; it will conduct if V
OUT
is pulled to a higher voltage than V
IN
.
Note 7:
Thermal hysteresis is defined as the change in +25C output voltage before and after exposing the device to temperature extremes.
Note 8:
Output noise voltage is proportional to V
OUT
. V
N
for other voltage option is calculated using (V
N(1.8V)
/1.8) * V
OUT
. V
N
(2.5V) = (36μV
PP
/1.8) * 2.5 = 46μV
PP
.
Note 9:
Long term stability is change in V
REF
at 25C measured continuously during 1000 hrs.
L
www.national.com
5
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PDF描述
LM4250CH Programmable Operational Amplifier
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相關代理商/技術參數
參數描述
LM4125A-4.1 WAF 制造商:Texas Instruments 功能描述:
LM4125AIM5-2.0 制造商:Texas Instruments 功能描述:IC SM VOLT REF LDO 0.2%TOL
LM4125AIM5-2.0/NOPB 功能描述:IC VREF SERIES PREC SOT-23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:PowerWise® 標準包裝:1 系列:- 基準類型:串聯,精度 輸出電壓:4.5V 容差:±800µV 溫度系數:1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數:1 電流 - 陰極:- 電流 - 靜態:7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應商設備封裝:20-CLCC 包裝:管件
LM4125AIM5-2.5 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(典型值):100 PPM / C 串聯 VREF - 輸入電壓(最大值): 串聯 VREF - 輸入電壓(最小值): 分流電流(最大值):60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
LM4125AIM5-2.5/NOPB 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(典型值):100 PPM / C 串聯 VREF - 輸入電壓(最大值): 串聯 VREF - 輸入電壓(最小值): 分流電流(最大值):60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
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