5秒后页面跳转
LTC1923 PDF预览

LTC1923

更新时间: 2024-09-24 22:55:51
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
28页 445K
描述
High Efficiency Thermoelectric Cooler Controller

LTC1923 数据手册

 浏览型号LTC1923的Datasheet PDF文件第2页浏览型号LTC1923的Datasheet PDF文件第3页浏览型号LTC1923的Datasheet PDF文件第4页浏览型号LTC1923的Datasheet PDF文件第5页浏览型号LTC1923的Datasheet PDF文件第6页浏览型号LTC1923的Datasheet PDF文件第7页 
LTC1923  
High Efficiency Thermoelectric  
Cooler Controller  
U
DESCRIPTIO  
FEATURES  
High Efficiency, Low Noise Topology  
The LTC®1923 is a pulse width modulator intended for  
thermoelectric cooler (TEC) or heater applications requir-  
ing either unidirectional or bidirectional drive circuits. All  
of the necessary control circuitry and two sets of comple-  
mentary output drivers are integrated into the LTC1923 to  
drive a full bridge, providing an efficient means of bidirec-  
tional current flow to the TEC. An accurate temperature  
control loop to stabilize the temperature of a laser diode  
system is easily achieved with the addition of just a few  
external components. Typical temperature setpoint accu-  
racy of 0.1°C is achievable with the LTC1923. Adding an  
instrumentation amplifier front end allows setpoint stabil-  
ity of 0.01°C.  
Adjustable Output Slew Rate Reduces EMI  
Full-Bridge Controller for Bidirectional  
Current Control  
Adjustable Pulse-by-Pulse Bidirectional TEC  
Current Limit  
Open/Shorted Thermistor Indication  
Solution Footprint in Less Than 0.6" × 0.8"  
(Double-Sided PCB)  
Available in 5mm x 5mm QFN and  
28-Pin SSOP Packages  
TEC Voltage Clamping  
TEC Current, Voltage and Heat/Cool Status Outputs  
Adjustable/Synchronizable Oscillator Frequency  
The part features independent adjustable heating and  
cooling pulse-by-pulse current limit, current soft-start for  
controlled start-up, output slew rate control to reduce  
system noise, differential current sense and voltage am-  
plifiers and a host of auxiliary circuits to protect the laser  
and provide redundant system monitoring.  
Reduces Filter Component Size and System Noise  
2.5V Reference Voltage Output  
2.7V Minimum Operating Voltage  
U
APPLICATIO S  
Laser-Based Fiber Optic Links  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Medical Instruments  
CPU Temperature Regulators  
U
TYPICAL APPLICATIO  
Laser Temperature Control Loop Achieving Setpoint Stability of 0.01°C  
10k  
10k  
0.1%  
PLLLPF  
R
C
T
T
330pF  
82k  
R
SLEW  
+
1µF  
REF  
REF  
V
DD  
V
REF  
LTC2053  
V
SDSYNC  
CNTRL  
EAOUT  
FB  
V
REF  
DD  
A = 10  
TMP  
CMD  
10k  
NTC  
LTC1658  
V
OUT  
PDRVB  
NDRVB  
10µF  
4.7µF  
10M  
MPA*  
MPB**  
MNA*  
L1  
L2  
100k  
COOLER  
TEC  
10µH  
10µH  
V
DD  
LTC1923  
1µF  
C2  
22µF  
C1  
MNB** 22µF  
AGND  
PGND  
NDRVA  
PDRVA  
1µF  
SS  
3
1
I
LIM  
+
R
S
V
SET  
CS  
2
4
FAULT  
CS  
V
I
THRM  
TEC  
+
C1, C2: TAIYO YUDEN JMK325BJ226MM-T (X7R)  
L1, L2: SUMIDA CDRH6D2B-220NC  
*MNA, MPA: SILICONIX Si9801  
H/C  
TEC  
TEC  
1923 TA01  
V
TEC  
**MNB, MPB: SILICONIX Si9801  
1923f  
1

与LTC1923相关器件

型号 品牌 获取价格 描述 数据表
LTC1923EGN Linear

获取价格

High Efficiency Thermoelectric Cooler Controller
LTC1923EGN#PBF Linear

获取价格

LTC1923 - High Efficiency Thermoelectric Cooler Controller; Package: SSOP; Pins: 28; Tempe
LTC1923EGN#TR Linear

获取价格

LTC1923 - High Efficiency Thermoelectric Cooler Controller; Package: SSOP; Pins: 28; Tempe
LTC1923EGN#TRPBF Linear

获取价格

LTC1923 - High Efficiency Thermoelectric Cooler Controller; Package: SSOP; Pins: 28; Tempe
LTC1923EUH Linear

获取价格

High Efficiency Thermoelectric Cooler Controller
LTC1923EUH#PBF Linear

获取价格

LTC1923 - High Efficiency Thermoelectric Cooler Controller; Package: QFN; Pins: 32; Temper
LTC1923EUH#TR Linear

获取价格

LTC1923 - High Efficiency Thermoelectric Cooler Controller; Package: QFN; Pins: 32; Temper
LTC1923EUH#TRPBF Linear

获取价格

LTC1923 - High Efficiency Thermoelectric Cooler Controller; Package: QFN; Pins: 32; Temper
LTC1928-5 Linear

获取价格

Doubler Charge Pump with Low Noise Linear Regulator in ThinSOT
LTC1928-5 ADI

获取价格

采用 ThinSOT 封装并具低噪声线性稳压器的倍压器充电泵