Prodotti > Circuiti integrati (CI) > LTC1923EGN

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High Efficiency Thermoelectric Cooler Controller 28-Pin SSOP N

  • Pacchetto :
  • SOP-28
  • Tipologia di produzione :
  • Pulse width modulator controller
  • RoHs Status:
  • Lead free/RoHS Compliant
  • Stock:
  • 800


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LTC1923EGN Dettagli del prodotto

The LTC1923EGN 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 LTC1923EGN 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.

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 and provide redundant system monitoring.



  • 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
  • Solution Footprint in Less Than 0.6" x 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 Reduces Filter Component Size and System Noise
  • 2.5V Reference Voltage Output
  • 2.7V Minimum Operating Voltage


  • Laser-Based Fiber Optic Links
  • Medical Instruments
  • CPU Temperature Regulators

LTC1923EGN Pinout
(Immagine: Pinout)

LTC1923EGN Block Diagram
(Immagine: Diagram)

Parametri tecnici

  • FET Gate Drive
  • Yes
  • Input Type
  • Single-Ended
  • Ioutmax | A
  • 5
  • PWM Outputs
  • Yes
  • PWM Frequencymax | Hz
  • 1.6M
  • Feedback Type
  • Neg Thermal Coefficent, Pos Thermal Coefficient
  • Shutdown
  • Yes
  • Istyp | A
  • 2m
  • Vs+min | V
  • 2.7
  • Vs+max | V
  • 6

LTC1923EGN Documents

LTC1923EGN Related speciale

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  • **AI L***

    Venditore professionale ed efficiente: consigliato.

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Spedizione Di più
Estimated Delivery Time: Oct 08 - Oct 13 days (choose Expedited at checkout).

Spedizione & Pagamento


  • Tipo di spedizione
  • Tassa della nave
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Condizioni di pagamento
  • Fee mano
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

Forniamo prodotti di alta qualità, un servizio attento e post-vendita di garanzia

  • Abbiamo ricca di prodotti, in grado di soddisfare le diverse esigenze.

    Abbiamo ricca di prodotti, in grado di soddisfare le diverse esigenze.

  • Quantità di ordine minimo comincia da 1pcs.

    Quantità di ordine minimo comincia da 1pcs.

  • Più basso tassa di spedizione internazionale parte da US $ 2,00.

    Più basso tassa di spedizione internazionale parte da US $ 2,00.

  • 90 giorni di garanzia di qualità per tutti i prodotti.

    90 giorni di garanzia di qualità per tutti i prodotti.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that LTC1923EGN is the original manufacturer or agent of LINEAR?
We have a professional business development department to strictly test and verify the qualifications of LINEAR original manufacturers and agents. All LINEAR suppliers must pass the qualification review before they can publish their LTC1923EGN devices; we pay more attention to the channels and quality of LTC1923EGN products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LTC1923EGN chips? Including LINEAR original factory information, Pulse width modulator controller application, LTC1923EGN pictures?
You can use Jotrin's intelligent search engine, or filter by Fiber Optic Control ; Thermoelectric Cooler Controller category, or find it through Linear Technology Corp. (ADI) Information page.
Q: Are the LINEAR's LTC1923EGN price and stock displayed on the platform accurate?
The LINEAR's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LTC1923EGN, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of LTC1923EGN?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LTC1923EGN we delivered, we will accept the replacement or return of the LTC1923EGN only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LTC1923EGN.
(3)The LTC1923EGN is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as LTC1923EGN datasheet pdf, LTC1923 pin diagram?
Need any After-Sales service, please feel free contact us:

Linear Technology Corp. (ADI)

Linear Technology designs, manufactures and markets a wide range of high performance standard integrated circuits. Product applications include telecommunications, cellular phones, networking products, notebook and desktop computers, video/multimedia, industrial instrumentation, automotive electroni...

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