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LT3469ETS8#TRMPBF PDF预览

LT3469ETS8#TRMPBF

更新时间: 2024-11-04 13:09:39
品牌 Logo 应用领域
凌特 - Linear 驱动器稳压器光电二极管
页数 文件大小 规格书
8页 166K
描述
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LT3469ETS8#TRMPBF 数据手册

 浏览型号LT3469ETS8#TRMPBF的Datasheet PDF文件第2页浏览型号LT3469ETS8#TRMPBF的Datasheet PDF文件第3页浏览型号LT3469ETS8#TRMPBF的Datasheet PDF文件第4页浏览型号LT3469ETS8#TRMPBF的Datasheet PDF文件第5页浏览型号LT3469ETS8#TRMPBF的Datasheet PDF文件第6页浏览型号LT3469ETS8#TRMPBF的Datasheet PDF文件第7页 
LT3469  
Piezo Microactuator Driver  
with Boost Regulator  
U
FEATURES  
DESCRIPTIO  
TheLT®3469isatransconductance(gm)amplifierthatcan  
drive outputs up to 33V from a 5V or 12V supply. An  
internal switching regulator generates a boosted supply  
voltage for the gm amplifier. The amplifier can drive  
capacitive loads in the range of 5nF to 300nF. Slew rate is  
limited only by the maximum output current. The 35V  
output voltage capability of the switching regulator, along  
with the high supply voltage of the amplifier, combine to  
allow the wide output voltage range needed to drive a  
piezoceramic microactuator.  
Amplifier  
Current Limit: ±40mA Typical  
Input Common Mode Range: 0V to 10V  
Output Voltage Range: 1V to (VCC – 1V)  
Differential Gain Stage with High Impedance Output  
(gm Stage)  
Quiescent Current (from VCC): 2mA  
Unloaded Gain: 30,000 Typical  
Switching Regulator  
Generates VCC Up to 35V  
Wide Operating Supply Range: 2.5V to 16V  
The LT3469 switching regulator switches at 1.3MHz,  
allowing the use of tiny external components. The output  
capacitorcanbeassmallas0.22µF, savingspaceandcost  
versus alternative solutions.  
High Switching Frequency: 1.3MHz  
Internal Schottky Diode  
Tiny External Components  
Current Mode Switcher with Internal Compensation  
Low Profile (1mm) SOT-23 Package  
TheLT3469isavailableinalowprofileThinSOTTM package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
U
APPLICATIO S  
Piezo Speakers  
Piezo Microactuators  
Varactor Bias  
U
TYPICAL APPLICATIO  
Piezo Microactuator Driver  
47µH  
5V OR 12V  
Response Driving a 33nF Load  
3
5
1µF  
16V  
V
SW  
IN  
IOUT  
6
2
V
100mA/DIV  
CC  
453k  
0.47µF  
FB  
50V  
VOUT  
10V/DIV  
LT3469  
16.5k  
4
1
GND  
OUT  
9.09k  
7
8
+
+IN  
–IN  
V
OUT  
1V TO 33V  
+
INPUT  
5V/DIV  
INPUT  
0V TO 3V  
50µs/DIV  
3469 TA04  
10k  
PIEZO  
ACTUATOR  
5nF < C < 300nF  
100k  
3469 TA03  
3469f  
1

LT3469ETS8#TRMPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3469ETS8#TRPBF Linear

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