High Speed PWM Controller

The UC1823 family of PWM control ICs is optimized for high frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the Comparators and Logic circuitry while maximizing bandwidth and slew rate of the error Amplifier This controller is designed for use in either current-mode or voltage-mode systems with the capability for input voltage feed-forward.
Protection circuitry includes a current limit Comparator a TTL compatible shutdown port, and a soft start pin which will double as a maximum duty cycle clamp. The Logic is fully latched to provide jitter free operation and prohibit multiple pulses at the output. An under-voltage lockout section with 800mV of hysteresis assures low start up current. During under-voltage lockout, the output is high impedance. The current limit reference (pin 11) is a DC input voltage to the current limit Comparator Consult specifications for details.
These devices feature a totem pole output designed to source and sink high peak currents from capacitive loads, such as the Gate of a Power MOSFET The on state is defined as a high level.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
UC1823BJ883B Rochester Electronics LLC Switching Controller, Voltage-mode, 2.2A, 1150kHz Switching Freq-Max, BICMOS, CDIP16, CERAMIC, DIP-16
UC1823L Rochester Electronics LLC Controller
UC1823AJ Rochester Electronics LLC Switching Controller, Voltage-mode, 2.2A, 1150kHz Switching Freq-Max, BICMOS, CDIP16, CERAMIC, DIP-16
UC1823AL Rochester Electronics LLC Switching Controller, Voltage-mode, 2.2A, 1150kHz Switching Freq-Max, BICMOS, CQCC20, CERAMIC, LCC-20
UC1823J883B Rochester Electronics LLC Controller
UC1823J Rochester Electronics LLC Controller
UC1823L883B Rochester Electronics LLC Controller
UC1823AL883B Texas Instruments High Speed PWM Controller 20-LCCC -55 to 125
UC1823AJ883B Texas Instruments High Speed PWM Controller 16-CDIP -55 to 125
UC1823AL Texas Instruments High Speed PWM Controller 20-LCCC -55 to 125
UC1823 's PackagesUC1823 's pdf datasheet
5962-89905012A LCCC
5962-8990501EA DIP
UC1823J DIP
UC1823J883B DIP
UC1823L LCCC
UC1823L883B LCCC




UC1823 Pinout, Pinouts
UC1823 pinout,Pin out
This is one package pinout of UC1823,If you need more pinouts please download UC1823's pdf datasheet.

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