UC3845N PWM Controller, 500 kHz 8-Pin, PDIP

UC3845N PWM Controller, 500 kHz 8-Pin, PDIP

• Low Start up Current
• Maximum Duty Clamp
• UVLO With Hysteresis
• Operating Frequency up to 500KHz

SKU: B12D48S3

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20.00EGP

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Description

UC3845N PWM Controller, 500 kHz 8-Pin, PDIP

The UC3842/UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum 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 totempole output for driving a Power MOSFET The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off), The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within 100% duty cycle. The UC3844 and UC3845 can operate with 50% duty cycle.

Specifications:

Maximum Switching Frequency500 kHz
Output Current1 A
Control MethodCurrent
Number of Outputs1
Mounting TypeThrough Hole
Fall Time50ns
Rise Time50ns
Package TypePDIP
TopologyBoost, Buck, Flyback, Forward
Pin Count8
Dimensions9.81 x 6.35 x 4.57mm
Maximum Duty Cycle50%
PWM Controller TypeCurrent Mode
Length9.81mm
Width6.35mm
Height4.57mm
Minimum Operating Temperature0 °C
Maximum Operating Temperature+70 °C

Package Includes:

  • 1x UC3845

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