UC1901J883B The Texas Instruments UC1901J883B is an isolated feedback generator designed for control loop applications. It offers an amplitude-modulation system for transformer coupling and features a 1% internal reference.
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UC1901J883B

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC1901J883B is an isolated feedback generator designed for control loop applications. It offers an amplitude-modulation system for transformer coupling and features a 1% internal reference.
Total Stock: 50 pcs
$ Price Range: $30.46

UC1901J883B Available from 1 distributor

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UC1901J883B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Military Grade
Mounting Type
Operating Temperature
Package Quantity
SVHC Present
Storage Temperature
Tape & Reel

UC1901J883B Description

Short technical summary and product information.

The UC1901J883B from Texas Instruments is an isolated feedback generator utilizing an amplitude-modulation system for coupling feedback error signals across a voltage isolation boundary. This device serves as a low-cost alternative to optical couplers, employing a small RF transformer or capacitor for signal transfer.

 

Key electrical specifications include a maximum input supply voltage of 40V, an internal carrier oscillator usable up to 5MHz, and a 1% accurate internal reference. The device also features an error amplifier and a loop status monitor that provides an active-low output when the sensed error voltage is within ±10% of the reference.

 

Designed for reliability, the UC1901 family operates over a wide temperature range. The UC1901J883B is supplied in a 14-pin CDIP package suitable for through-hole mounting. This part is not recommended for new designs.

UC1901J883B Quick Information

Product Type: Isolated Feedback Generator
Series: UC1901
Canonical Name: UC1901 Isolated Feedback Generator
Subcategory: Specialized

UC1901J883B Compliance

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

UC1901J883B Estimated Pricing

Qty Low High
1+ $30.46 $30.46

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

UC1901J883B Features

  • Amplitude-modulation system for isolated feedback.
  • Low-cost alternative to optical couplers.
  • Internal 1% reference and error amplifier.
  • Carrier oscillator usable to 5MHz.
  • 14-pin CDIP package for through-hole mounting.

UC1901J883B Applications

  • Closing feedback control loops across isolation.
  • Alternative to optical couplers in power systems.
  • Used in line-operated power systems.
  • Synchronization to system or SMPS clock.

UC1901J883B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum input supply voltage for the UC1901J883B?

40V.

What package does the UC1901J883B come in?

14-pin CDIP with through-hole mounting.

What is the operating temperature range?

-55°C to +125°C (ambient) and -55°C to +150°C (junction).

What is the reference accuracy of the UC1901J883B?

1%.

What is the maximum driver output current?

-35mA.

What is the maximum carrier oscillator frequency?

5MHz.

What is the power dissipation at 25°C ambient?

1000mW.

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