UC3845B Current Mode PWM Controller

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Rs: 100 /- PKR

Availability: 1

Brand: Circuit PK

Product SKU: CKT-2150

Sepcifications

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

Description
Reviews (1)

The UC3844B, UC3845B series are mode controllers with high performance fixed frequency current mode controllers. They are designed specifically for O-Line and dc-to - dc converter applications which oer a cost-effective solution with minimal external components. Such built-in circuits feature an oscillator, an compensated reference temperature, high gain loss amplifier, current sensing comparator r, and a hig current totem pole output ideally suited for driving a power MOSFET.