Datasheets
UC1843L by:

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, CQCC20, CERAMIC, LCC-20

Part Details for UC1843L by Rochester Electronics LLC

Overview of UC1843L by Rochester Electronics LLC

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

Part Details for UC1843L

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UC1843L Part Data Attributes

UC1843L Rochester Electronics LLC
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UC1843L Rochester Electronics LLC Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, CQCC20, CERAMIC, LCC-20
Pbfree Code No
Rohs Code No
Part Life Cycle Code Contact Manufacturer
Ihs Manufacturer ROCHESTER ELECTRONICS LLC
Part Package Code QLCC
Package Description QCCN,
Pin Count 20
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.39.00.01
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 25 V
Input Voltage-Min 8.2 V
Input Voltage-Nom 15 V
JESD-30 Code S-CQCC-N20
Length 8.89 mm
Number of Functions 1
Number of Terminals 20
Operating Temperature-Max 125 °C
Operating Temperature-Min -55 °C
Output Current-Max 1 A
Output Voltage-Nom 5 V
Package Body Material CERAMIC, METAL-SEALED COFIRED
Package Code QCCN
Package Shape SQUARE
Package Style CHIP CARRIER
Peak Reflow Temperature (Cel) NOT SPECIFIED
Seated Height-Max 2.03 mm
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 500 kHz
Technology BICMOS
Temperature Grade MILITARY
Terminal Form NO LEAD
Terminal Pitch 1.27 mm
Terminal Position QUAD
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 8.89 mm

Alternate Parts for UC1843L

This table gives cross-reference parts and alternative options found for UC1843L. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UC1843L, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
5962-8670406V2X 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, CERAMIC, LCC-20 Texas Instruments UC1843L vs 5962-8670406V2X
UC1843L883B Current Mode PWM Controller 20-LCCC -55 to 125 Texas Instruments UC1843L vs UC1843L883B
5962-8670402XA Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, Unitrode Corp (RETIRED) UC1843L vs 5962-8670402XA
SG1843L/DESC Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 Microchip Technology Inc UC1843L vs SG1843L/DESC
5962-8670406VXA Radiation-tolerant QMLV, enhanced 30-V input, 1-A 500-kHz PWM controller, 100% duty cycle 20-LCCC -55 to 125 Texas Instruments UC1843L vs 5962-8670406VXA
UC1843L/883BC Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, Unitrode Corporation UC1843L vs UC1843L/883BC
UC1843L/883BC Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, Unitrode Corp (RETIRED) UC1843L vs UC1843L/883BC
5962-8670402VXA Radiation-tolerant QMLV, 30-V input, 1-A single-output 500-kHz PWM controller, 100% duty cycle 20-LCCC -55 to 125 Texas Instruments UC1843L vs 5962-8670402VXA
5962-86704022A Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 Microchip Technology Inc UC1843L vs 5962-86704022A
5962-8670406V2A 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, CERAMIC, LCC-20 Texas Instruments UC1843L vs 5962-8670406V2A
Part Number Description Manufacturer Compare
MIC18C45AJ Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, BICMOS, CDIP8, CERDIP-8 Microchip Technology Inc UC1843L vs MIC18C45AJ
UC3845BD1 Current Mode PWM STMicroelectronics UC1843L vs UC3845BD1
UC3844L-D08-T Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, LEAD FREE, DIP-8 Unisonic Technologies Co Ltd UC1843L vs UC3844L-D08-T
UC3843ADR2G 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, LEAD FREE, PLASTIC, SOIC-14 onsemi UC1843L vs UC3843ADR2G
UC2844AQD 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, MS-012AB, SOIC-14 Texas Instruments UC1843L vs UC2844AQD
IMP38HC45EPA Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDIP8, PLASTIC, DIP-8 Imp Inc UC1843L vs IMP38HC45EPA
SG2843D-TR Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14 Microchip Technology Inc UC1843L vs SG2843D-TR
MIC38HC43-1BJ Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, CDIP14, CERDIP-14 Microchip Technology Inc UC1843L vs MIC38HC43-1BJ
SG1845J-DESC Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, CDIP14 Microchip Technology Inc UC1843L vs SG1845J-DESC
SG1844Y-DESC Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP8 Microchip Technology Inc UC1843L vs SG1844Y-DESC

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