onsemi UC2843BN
$ 0.65
Obsolete
Alternate Parts
This Part
Alternate Parts
Price @ 1000
$ 0.65
$ 0.52
$ 0.52
Stock
71,126
1,428,914
1,428,914
Authorized Distributors
3
6
6
Topology
Buck-Boost
Boost, Flyback
Boost, Flyback
Output Voltage
5.05 V
5.05 V
5.05 V
Min Input Voltage
8.2 V
8.2 V
8.2 V
Max Input Voltage
25 V
30 V
30 V
Max Input Current
-
-
-
Efficiency
-
-
-
Max Switching Frequency
500 kHz
500 kHz
500 kHz
Output Voltage Accuracy
-
-
-
Fault Protection
-
-
-
Synchronous Rectifier
-
-
-
Case/Package
DIP
DIP
DIP
Number of Pins
-
8
8
Supply Chain
Export Control Classification Number (ECCN) CodeEAR99
Harmonized Tariff Schedule (HTS) Code8542.39.00.60
Introduction Date1993-01-01
Lifecycle StatusObsolete (Last Updated: 1 month ago)
LTB Date2008-06-30
LTD Date2008-12-31
Descriptions
Descriptions of onsemi UC2843BN provided by its distributors.
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8
Current Mode PWM Controller 1A 500kHz 8-Pin PDIP Rail
Off-Line Controllers 52kHz 1A Current PWM No-Cancel/No-Return
Boost，Flyback No Up~500KHz Transistor Driver 1 5.05V 4.95V 30V PDIP-8 Through hole mounting 5.33mm(height)
CURRENT MODE PWM CNTRLR 1A 8PDIP
IC REG CTRLR BST/FLYBK 8-MINIDIP
Switching Controllers 0.5mA Current Mode
UC2843A CURRENT MODE PWM CONTROLLER;
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 Semiconductor / Fairchild
- ON SEMICOND
- SCG
- ON Semiconductor Cor
- ON SEMICO
- ONSM
- onsemi / Fairchild
- ON SEMICONDUCTOR CORP
- 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
Number of Terminals8
Technical
Fall Time50 ns
Max Duty Cycle96 %
Max Input Voltage25 V
Max Operating Temperature85 °C
Max Output Current1 A
Max Supply Current17 mA
Max Switching Frequency500 kHz
Min Input Voltage8.2 V
Min Operating Temperature-25 °C
Nominal Input Voltage15 V
Nominal Output Voltage2.5 V
Number of Circuits1
Number of Outputs1
Operating Supply Voltage30 V
Output Current1 A
Output Voltage5.05 V
Quiescent Current12 mA
Rise Time50 ns
Switching Frequency500 kHz
TopologyBuck-Boost
Dimensions
Height - Seated (Max)4.45 mm
Length9.78 mm
Terminal Pitch2.54 mm
Width7.62 mm
Compliance
Environmental Classification
China RoHSNon-Compliant
Lead FreeLead Free
REACH SVHCAffected
RoHSNon-Compliant
Compliance Statements