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NSP220M8D5TR

更新时间： 2024-11-23 12:29:47
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
22页 279K
描述
Thermoelectric Cooler Controller

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NSP220M8D5TR 数据手册

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Thermoelectric Cooler Controller  
ADN8830  
FEATURES  
GENERAL DESCRIPTION  
High Efficiency  
The ADN8830 is a monolithic controller that drives a thermo-  
electric cooler (TEC) to stabilize the temperature of a laser diode  
or a passive component used in telecommunications equipment.  
Small Size: 5 mm 
؋
 5 mm LFCSP  
Low Noise: <0.5% TEC Current Ripple  
Long-Term Temperature Stability: ؎0.01؇C  
Temperature Lock Indication  
Temperature Monitoring Output  
Oscillator Synchronization with an External Signal  
Clock Phase Adjustment for Multiple Controllers  
Programmable Switching Frequency up to 1 MHz  
Thermistor Failure Alarm  
This device relies on a negative temperature coefficient (NTC)  
thermistor to sense the temperature of the object attached to the  
TEC. The target temperature is set with an analog input voltage  
either from a DAC or an external resistor divider.  
The loop is stabilized by a PID compensation amplifier with  
high stability and low noise. The compensation network can be  
adjusted by the user to optimize temperature settling time. The  
component values for this network can be calculated based on  
the thermal transfer function of the laser diode or obtained  
from the lookup table given in the Application Notes section.  
Maximum TEC Voltage Programmability  
APPLICATIONS  
Thermoelectric Cooler (TEC) Temperature Control  
Resistive Heating Element Control  
Temperature Stabilization Substrate (TSS) Control  
Voltage outputs are provided to monitor both the temperature of  
the object and the voltage across the TEC. A voltage reference  
of 2.5 V is also provided.  
FUNCTIONAL BLOCK DIAGRAM  
PID COMPENSATION  
NETWORK  
P-CHANNEL  
FROM  
(UPPER MOSFET)  
THERMISTOR  
TEMPERATURE  
MEASUREMENT  
AMPLIFIER  
PWM  
N-CHANNEL  
CONTROLLER  
TEMPERATURE  
SET  
MOSFET  
DRIVERS  
INPUT  
P-CHANNEL  
(LOWER MOSFET)  
VOLTAGE  
REFERENCE  
OSCILLATOR  
V
REF  
N-CHANNEL  
FREQUENCY/PHASE  
CONTROL  
D
REV.  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
781/461-3113  
www.analog.com  
Analog Devices, Inc. All rights reserved.  
2012  
Fax:  
©
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