ON Semiconductor UC3842BN Hi Performance Current Mode Controller 8PDIP OMA046zm




ON Semiconductor High Performance
Current Mode Controllers

The UC3842B, UC3843B series are high performance fixed
frequency current mode controllers.

They are specifically designed for Off−Line and DC−DC converter applications offering the designer a
cost−effective solution with minimal external components.

These integrated circuits feature a trimmed oscillator for precise duty cycle
control, a temperature compensated reference, high gain error
amplifier, current sensing comparator, and a high current totem pole
output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and
reference undervoltage lockouts each with hysteresis, cycle−by−cycle
current limiting, programmable output deadtime, and a latch for single
pulse metering.
These devices are available here in an 8−pin dual−in−line package

Select 5, 10, 20 or 40 Pieces  

From drop down box above
– the greater the quantity the larger the discount
Stored with us still in manufacturers tubes
– you will receive a cut length of tube containing the quantity ordered.
Attribute Value
Number of PWM Outputs 1
Control Method Current
Topology Boost, Flyback, Forward
Rise Time 50ns
Fall Time 50ns
Maximum Duty Cycle 96%
Maximum Switching Frequency 500 kHz
Mounting Type Through Hole
Package Type PDIP
Pin Count 8
Output Current 1 A
Width 6.6mm
Dimensions 10.16 x 6.6 x 3.44mm
Length 10.16mm
Maximum Operating Temperature +70 °C
Height 3.44mm
Minimum Operating Temperature 0 °C
For datasheet copy and paste: https://www.onsemi.com/pub/Collateral/UC3842B-D.PDF

 As many of our lines come in to us as surplus – sometimes from high end ‘Milspec’ type manufacturers we try to pass on our savings to our customers – often selling industrial grade or military spec components rather than the commercial equivalent. 


Additional information


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