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LINEAR TECHNOLOGY  LTC1923EUH#PBF  Thermoelectric Cooler Controller, 5.5V-2.7V supply, 225 kHz, QFN-32

LINEAR TECHNOLOGY LTC1923EUH#PBF
LINEAR TECHNOLOGY LTC1923EUH#PBF
Manufacturer Part No:
LTC1923EUH#PBF
Order Code:
2295517
Technical Datasheet:
See all Technical Docs
LINEAR TECHNOLOGY LTC1923EUH#PBF
LINEAR TECHNOLOGY LTC1923EUH#PBF

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC1923EUH#PBF 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.
  • High efficiency low noise topology
  • 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
  • TEC Voltage clamping
  • TEC Current, voltage and heat/cool status outputs
  • Adjustable/synchronizable oscillator frequency reduces filter component size and system noise

Product Information

Input Voltage:
-
Output Voltage:
-
Output Current:
-
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.5V
Controller IC Case Style:
QFN
No. of Pins:
32Pins
Frequency:
225kHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Medical
  • Fibre Optics

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000255

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