UC3854N vs UC3851N

This in-depth comparison of the UC3854N and UC3851N 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

ISO9001 Quality Control ISO45001 ISO14001 100% Genuine
Part A

UC3854N

Texas Instruments

Lifecycle
Active
Stock
4574 PCS
Package
PDIP-16
Series
PMIC - PFC (Power Factor Correction)
+BOM RFQ
Part B

UC3851N

Texas Instruments

Lifecycle
Active
Stock
9068 PCS
Package
PDIP-18
Series
PMIC - AC DC Converters, Offline Switchers
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification UC3854N UC3851N
Part Status Active Active
Internal Switch(s) - No
Topology - Boost, Buck, Flyback, Forward
Voltage - Start Up - 8 V
Voltage - Supply (Vcc/Vdd) - 7.8V ~ 32V
Duty Cycle - 50%
Frequency - Switching 200kHz Up to 500kHz
Fault Protection - Current Limiting, Over Voltage
Control Features - Frequency Control, Soft Start
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C (TA)
Mode Average Current -
Current - Startup 1.5 mA -
Voltage - Supply 14.5V ~ 30V -
Mounting Type Through Hole -
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