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LT1970IFE#TRPBF

更新时间： 2024-09-15 21:14:43
品牌 Logo 应用领域
凌特 - Linear 放大器光电二极管
页数 文件大小 规格书
26页 382K
描述
LT1970 - 500mA Power Op Amp with Adjustable Precision Current Limit; Package: TSSOP; Pins: 20; Temperature Range: -40°C to 85°C

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LT1970IFE#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP, TSSOP20,.25
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.14放大器类型：OPERATIONAL AMPLIFIER
架构：VOLTAGE-FEEDBACK标称共模抑制比：105 dB
频率补偿：YES最大输入失调电压：800 µV
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：6.5 mm低-偏置：NO
低-失调：NO微功率：NO
湿度敏感等级：1负供电电压上限：-18 V
标称负供电电压 (Vsup)：-15 V功能数量：1
端子数量：20最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP20,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260功率：YES
电源：+-2.5/+-18/5/36 V可编程功率：NO
认证状态：Not Qualified座面最大高度：1.2 mm
最小摆率：0.7 V/us标称压摆率：1.6 V/us
子类别：Operational Amplifier最大压摆率：13 mA
供电电压上限：18 V标称供电电压 (Vsup)：15 V
表面贴装：YES技术：BIPOLAR
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
标称均一增益带宽：3600 kHz最小电压增益：5000
宽带：NO宽度：4.4 mm
Base Number Matches：1

LT1970IFE#TRPBF 数据手册

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LT1970  
500mA Power Op Amp with  
Adjustable Precision Current Limit  
FeaTures  
DescripTion  
The LT®1970 is a 500mA power op amp with precise  
externally controlled current limiting. Separate control  
voltages program the sourcing and sinking current limit  
sense thresholds with 2% accuracy. Output current may  
be boosted by adding external power transistors.  
n
500mA Minimum Output Current  
n
Independent Adjustment of Source and  
Sink Current Limits  
n
n
n
n
2% Current Limit Accuracy  
Operates with Single or Split Supplies  
Shutdown/Enable Control Input  
Open Collector Status Flags:  
The circuit operates with single or split power supplies  
from 5V to 36V total supply voltage. In normal operation,  
the input stage supplies and the output stage supplies are  
Sink Current Limit  
Source Current Limit  
+
–
connected (V to V and V to V ). To reduce power  
CC  
EE  
Thermal Shutdown  
+
dissipation it is possible to power the output stage (V ,  
V ) from independent, lower voltage rails. The amplifier is  
n
n
n
n
n
n
Fail Safe Current Limit and Thermal Shutdown  
1.6V/µs Slew Rate  
3.6MHz Gain Bandwidth Product  
Fast Current Limit Response: 2MHz Bandwidth  
Specified Temperature Range: –40°C to 85°C  
Available in a 20-Lead TSSOP Package  
–
unity-gain stable with a 3.6MHz gain bandwidth product  
and slews at 1.6V/µs. The current limit circuits operate  
witha2MHzresponsebetweentheVC orVC control  
inputs and the amplifier output.  
SRC  
SNK  
Open collector status flags signal current limit circuit  
activation, as well as thermal shutdown of the amplifier.  
An enable logic input puts the amplifier into a low power,  
high impedance output state when pulled low. Thermal  
shutdown and a 800mA fixed current limit protect the  
chip under fault conditions.  
applicaTions  
n
Automatic Test Equipment  
n
Laboratory Power Supplies  
n
Motor Drivers  
Thermoelectric Cooler Driver  
n
The LT1970 is packaged in a 20-lead TSSOP package with  
a thermally conductive copper bottom plate to facilitate  
heat sinking.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Typical applicaTion  
AV = 2 Amplifier with Adjustable 500mA Full-Scale  
Current Limit and Fault Indication  
Current Limited Sinewave Into 10Ω Load  
V
LIMIT  
0V TO 5V  
15V  
15V  
3k  
4V  
2V  
V
LIMIT  
10 • R  
I
=
OUT(LIMIT)  
V
CC  
CS  
+
V
EN  
VC  
0V  
V
LOAD  
SRC  
VC  
V
IN  
+IN  
SNK  
–2V  
R
CS  
ISNK  
1Ω  
I
ISRC  
OUT  
1/4W  
TSD  
LT1970  
OUT  
+
SENSE  
–
SENSE  
V
–
LOAD  
VC  
VC  
CS  
= 4V  
= 2V  
1970 TA02  
R1  
10k  
20µs/DIV  
SRC  
SNK  
–IN  
COMMON  
V
EE  
R
= 1Ω  
R2  
10k  
–15V  
1970 TA01  
1970fe  
1
For more information www.linear.com/LT1970  
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中文翻译

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LT1970IFE#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT1970IFE#PBF Linear

完全替代

 LT1970 - 500mA Power Op Amp with Adjustable Precision Current Limit; Package: TSSOP; Pins:
LT1970IFE Linear

类似代替

 500mA Power Op Amp with Adjustable Precision Current Limit

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