The UC1842A/3A/4A/5A family of control ICs is a pin-for-pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features.
| Part Number | Manufacturer | Description |
|---|---|---|
| UC1842B-D | Unisonic Technologies | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC1843A | LINFINITY | CURRENT MODE PWM CONTROLLER |
| UC1841 | Unitrode | Programmable Off-Line PWM Controller |
| UC1844A | LINFINITY | CURRENT MODE PWM CONTROLLER |
| UC1843B-D | Unisonic Technologies | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC1845A | Unitrode | Current Mode PWM Controller |
