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.
型号 | 品牌 | 下载 |
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LTC1923EUH#PBF | Linear Technology 凌力尔特 | 下载 |
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LTC1799CS5#TRMPBF | Linear Technology 凌力尔特 | 下载 |
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LTC1799HS5 | Linear Technology 凌力尔特 | 下载 |