UC3843AN vs UC3842ANG4

This in-depth comparison of the UC3843AN and UC3842ANG4 provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

UC3843AN

onsemi

Lifecycle: Active
Stock: 3693 PCS
Package: PDIP-8
Series: PMIC - Voltage Regulators - DC DC Switching Controllers

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Part B

UC3842ANG4

Texas Instruments

Lifecycle: Active
Stock: 5238 PCS
Package: DIP-8
Series: PMIC - Voltage Regulators - DC DC Switching Controllers

+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification	UC3843AN	UC3842ANG4
Supplier	-	Rochester Electronics, LLC,Texas Instruments
Part Status	Obsolete	Discontinued at Digi-Key
Output Type	Transistor Driver	Transistor Driver
Function	Step-Up, Step-Up/Step-Down	Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration	Positive, Isolation Capable	Positive, Isolation Capable
Topology	Boost, Flyback	Boost, Buck, Flyback, Forward
Number of Outputs	1	1
Output Phases	1	1
Voltage - Supply (Vcc/Vdd)	8.4V ~ 30V	10V ~ 30V
Frequency - Switching	Up to 500kHz	Up to 500kHz
Duty Cycle(Max)	96%	96%
Synchronous Rectifier	No	No
Clock Sync	No	No
Control Features	Frequency Control	Frequency Control
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Mounting Type	Through Hole	Through Hole

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