The UC3844B, UC3845B 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 an oscillator, 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.
Features
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz Output Switching Frequency
• Output Deadtime Adjustable from 50% to 70%
• Automatic Feed Forward Compensation
• Latching PWM for Cycle−By−Cycle Current Limiting
• Internally Trimmed Reference with Undervoltage Lockout
• High Current Totem Pole Output
• Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
• Pb−Free Packages are Available
Brand Product | Generic |
---|---|
GTIN | 1, |
IC type | N/A |
Is Featured | No |
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Stock |
Shipping Method |
ETA |
Cost |
|
Available |
Self Pickup |
1 Day |
Free |
|
Available |
inside UAE |
2 - 3 Days |
22 AED / Free Above 50 AED |
|
Available |
International |
4 - 7 Days |
180 AED / 49 $ |
|
pre-order |
General |
2 Weeks |