Current Mode PWM Controller

The UCx84xA family of control devices

is a pin-for-pin compatible improved version of the UCx84x family. Providing the

necessary features to control current-mode or switched-mode power supplies, this

family of devices has many improved features: startup current is less than 0.5mA,

oscillator discharge is trimmed to 8.3mA, and during UVLO, the output stage can sink

at least 10mA at less than 1.2V for VCC over 5V.