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MAX1978ETM The MAX1978ETM is a single-chip temperature controller designed for Peltier thermoelectric cooler modules. It offers precise temperature control with features like on-chip power FETs and selectable switching frequencies.
Mfr Part #:

MAX1978ETM

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX1978ETM is a single-chip temperature controller designed for Peltier thermoelectric cooler modules. It offers precise temperature control with features like on-chip power FETs and selectable switching frequencies.
✓ Total Stock: 3,039 pcs
$ Price Range: $0.75

MAX1978ETM Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
1,720 pcs
On Request
1720 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,319 pcs
On Request
1319 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX1978ETM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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MAX1978ETM Description

Short technical summary and product information.

The MAX1978ETM from Analog Devices is a compact and accurate single-chip temperature controller specifically designed for Peltier thermoelectric cooler (TEC) modules. It integrates power FETs and thermal control-loop circuitry, minimizing the need for external components and reducing the overall circuit footprint and height.

 

This controller operates from a single 3V to 5.5V supply and provides bipolar ±3A output, enabling precise temperature control without dead zones or nonlinearities at low load currents. It features selectable 500kHz/1MHz switching frequencies and a unique ripple-cancellation scheme to optimize component size, efficiency, and reduce noise. The ultra-low-drift chopper amplifier ensures a temperature stability of ±0.001°C.

 

The MAX1978ETM includes integrated precision integrator and chopper-stabilized op amps, allowing for PI or PID control loops. The instrumentation amplifier can interface with external sensors like NTC/PTC thermistors or thermocouples. Analog outputs are provided to monitor TEC temperature and current, with separate overtemperature and undertemperature outputs for protection.

 

Available in a 48-lead TQFN package, the MAX1978ETM is specified for operation over a -40°C to +85°C temperature range. Its applications include temperature control for fiber optic laser modules, WDM/DWDM laser-diode temperature control, and fiber optic network equipment.

MAX1978ETM Quick Information

Product Type: Temperature Controller
Canonical Name: MAX1978ETM Single-Chip Temperature Controller
Subcategory: Power Management - Specialized

MAX1978ETM Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX1978ETM Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX1978ETM Features

  • Smallest, safest, most accurate single-chip controller.
  • On-chip power MOSFETs, no external FETs needed.
  • Temperature stability to 0.001°C.
  • Selectable 500kHz/1MHz switching frequency.
  • Bipolar ±3A output for TEC modules.

MAX1978ETM Applications

  • Controls Peltier thermoelectric cooler modules.
  • Used in fiber optic laser module applications.
  • Supports WDM/DWDM laser-diode temperature control.
  • Applicable to fiber optic network equipment.

MAX1978ETM FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MAX1978ETM?

The operating voltage range is 3V to 5.5V.

What is the package type for the MAX1978ETM?

The package type is 48-TQFN (7x7) with a surface mount type.

What is the operating temperature range of the MAX1978ETM?

The operating temperature range is -40°C to 85°C.

What is the RoHS status of the MAX1978ETM?

The RoHS status is RoHS3 Compliant.

What is the temperature stability of the MAX1978ETM?

The temperature stability is ±0.001°C.

What is the switching frequency of the MAX1978ETM?

The switching frequency is selectable between 500kHz and 1MHz.

What is the bipolar output current for the MAX1978ETM?

The bipolar output current is ±3A.

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