Datasheet Analog Devices LTC1923EGN#PBF — Datenblatt

LTC1923
High Efficiency Thermoelectric
Cooler Controller
DESCRIPTIO
U FEATURES
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■ The LTC®1923 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 setpoint accuracy of 0.1°C is achievable with the LTC1923. Adding an
instrumentation amplifier front end allows setpoint stability of 0.01°C. High Efficiency, Low Noise Topology
Adjustable Output Slew Rate Reduces EMI
Full-Bridge Controller for Bidirectional
Current Control
Adjustable Pulse-by-Pulse Bidirectional TEC …