LINEAR TECHNOLOGY LTC1923EUH#PBF 热电冷却控制器, 5.5V-2.7V电源, 225 kHz, QFN-32
The is a Pulse Width Modulator intended for thermoelectric cooler TEC or heater applications requiring either unidirectional or bidirectional drive circuits. All of the necessary control circuitry and two sets of complementary output drivers are integrated into the LTC1923 to drive a full bridge, providing an efficient means of bidirectional 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 set point accuracy of 0.1°C is achievable with the LTC1923. Adding an instrumentation amplifier front end allows set point stability of 0.01°C. 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 amplifiers and a host of auxiliary circuits to protect the laser.
频率 225 kHz
电源电压DC 2.70V min
供电电流 2 mA
针脚数 32
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 2.7V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 2.7 V
安装方式 Surface Mount
引脚数 32
封装 QFN-32
封装 QFN-32
工作温度 -40℃ ~ 85℃
产品生命周期 Unknown
包装方式 Each
制造应用 Medical, 医用, Fibre Optics, 热电冷却器/加热器, 光纤
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/12/17
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
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LTC1923EUH#PBF Linear Technology 凌力尔特 | 当前型号 | 当前型号 |