onsemi UC3844N
Obsolete
Supply Chain
Export Control Classification Number (ECCN) CodeEAR99
Harmonized Tariff Schedule (HTS) Code8542.39.00.60
Introduction Date1993-01-01
Lifecycle StatusObsolete (Last Updated: 5 months ago)
LTB Date2006-06-30
LTD Date2006-12-31
Descriptions
Descriptions of onsemi UC3844N provided by its distributors.
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8
CURRENT-MODE BIPOLAR DUAL Through Hole DC-DC Controller IC 45ns 0C~70C TA Up to 500kHz 5.1V
Current Mode PWM Controller 1A 8-Pin PDIP W Rail
12V~28V PDIP-8 AC-DC Controllers & Regulators ROHS
Supervisory Circuits PWM Control IC
Manufacturer Aliases
onsemi has several brands around the world that distributors may use as alternate names. onsemi may also be known as the following names:
- ON Semiconductor
- ONS
- ONSEMICON
- ON SEM
- ON SEMICONDUCTO
- ON SEMICONDUCTORS
- ONSEMIC
- ON Semicondu
- OSC
- ONSE
- ON SEMICOND
- ON Semiconductor / Fairchild
- SCG
- ON Semiconductor Cor
- ON SEMICO
- ONSM
- ON SEMICONDUCTOR CORP
- onsemi / Fairchild
- MOT/ON SEMI
- Fairchild/ONSemiconductor
- ON Semiconductor Corporation
- ON4
- ON Semi - ON Semiconductor
- ON SEMICONDUCT
- ON-SEMI SCG
- ON Semiconductor Inc.
- onsemiconductor
- On Semiconductor Ltd
Technical Specifications
Physical
Case/PackageDIP
MountThrough Hole
Number of Pins8
Number of Terminals8
Technical
Duty Cycle48 %
Fall Time35 ns
Frequency275 kHz
Max Duty Cycle50 %
Max Input Voltage25 V
Max Operating Temperature70 °C
Max Output Current1 A
Max Supply Current17 mA
Max Supply Voltage30 V
Max Switching Frequency500 kHz
Min Input Voltage11.5 V
Min Operating Temperature0 °C
Nominal Input Voltage15 V
Nominal Output Voltage2.5 V
Nominal Supply Current17 mA
Number of Circuits1
Number of Outputs1
Operating Supply Current17 mA
Output Current1 A
Output Voltage5.1 V
Rise Time45 ns
Switching Frequency500 kHz
Temperature GradeCommercial
TopologyFlyback
Dimensions
Height - Seated (Max)4.45 mm
Length9.2 mm
Terminal Pitch2.54 mm
Width7.62 mm
Compliance
Environmental Classification
China RoHSNon-Compliant
REACH SVHCNo
RoHSCompliant
Compliance Statements