HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS High performance current mode PWM controllers
Features
Product Name: HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS High performance current mode PWM controller
Product model: MC3845
Product Description:
The HG are high performance fixed frequency
current mode controllers that specifically designed for Off-Line and
DC to DC converter applications with minimal external parts count.
The differences between UC3844 and UC3845 are the maximum
duty cycle ranges and under-voltage lockout thresholds. The
UC3844 ideally suited to off-line applications with UVLO thresholds
of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of
8.5V(ON) and 7.6V(OFF) for lower voltage applications.
parameter:
Total Power Supply and Zener Current (ICC+Iz) 30 mA
Output Current, Source or Sink (Note 2) IOUT 1.0 A
Output Energy (Capacitive Load per cycle) W 5.0 μJ
Current Sense and Voltage feedback Inputs VIN -0.3 ~ +5.5 V
Error Amp Output Sink Current ISINK 10 mA
Power Dissipation PD SOP-8 862 mW
PD DIP-8 1250 mW
Junction Temperature TJ +150 °C
Operation Temperature Range TOPR 0 ~ 70 °C
Storage Temperature Range TSTG -65 ~ +150 °C
Package: DIP-8 SOP-8
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