UC2841DW vs UC3851DWTR feature comparison

UC2841DW Unitrode Corporation

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UC3851DWTR Texas Instruments

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Rohs Code No Yes
Part Life Cycle Code Transferred Active
Ihs Manufacturer UNITRODE CORP TEXAS INSTRUMENTS INC
Reach Compliance Code unknown compliant
Analog IC - Other Type SWITCHING CONTROLLER SWITCHING CONTROLLER
Control Mode CURRENT-MODE CURRENT/VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Input Voltage-Max 30 V 40 V
Input Voltage-Min 8 V 8 V
Input Voltage-Nom 20 V 20 V
JESD-30 Code R-PDSO-G18 R-PDSO-G18
JESD-609 Code e0 e4
Number of Functions 1 1
Number of Terminals 18 18
Operating Temperature-Max 85 °C 70 °C
Operating Temperature-Min -25 °C
Output Current-Max 1 A 0.4 A
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code SOP SOP
Package Equivalence Code SOP18,.4 SOP18,.4
Package Shape RECTANGULAR RECTANGULAR
Package Style SMALL OUTLINE SMALL OUTLINE
Qualification Status Not Qualified Not Qualified
Supply Current-Max (Isup) 14 mA 21 mA
Surface Mount YES YES
Switcher Configuration SINGLE SINGLE
Switching Frequency-Max 500 kHz 500 kHz
Technology BIPOLAR BICMOS
Temperature Grade OTHER COMMERCIAL
Terminal Finish Tin/Lead (Sn/Pb) NICKEL PALLADIUM GOLD
Terminal Form GULL WING GULL WING
Terminal Pitch 1.27 mm 1.27 mm
Terminal Position DUAL DUAL
Base Number Matches 3 3
Pbfree Code Yes
Part Package Code SOIC
Package Description GREEN, SOIC-18
Pin Count 18
ECCN Code EAR99
HTS Code 8542.39.00.01
Additional Feature CURRENT MODE OPERATION IS ALSO POSSIBLE
Length 11.55 mm
Moisture Sensitivity Level 2
Peak Reflow Temperature (Cel) 260
Seated Height-Max 2.65 mm
Supply Voltage-Max (Vsup) 40 V
Time@Peak Reflow Temperature-Max (s) 30
Width 7.5 mm

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