UCC2805 Overview
Description
The UCCx80x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count. These devices have the same Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) UCC1800 LCC (20) CDIP (8) 8.89 mm × 8.89 mm 6.67 mm × 9.60 mm UCC1801, UCC1802, UCC1803, UCC1804, UCC1805 CDIP (8) 6.67 mm × 9.60 mm UCC2800, UCC2801, UCC2802, UCC2803, UCC2804, UCC2805, UCC3800, UCC3801, UCC3802, UCC3803, UCC3804, UCC3805 TSSOP (8) SOIC (8) PDIP (8) 4.40 mm × 3.00 mm 3.91 mm × 4.90 mm 6.35 mm × 9.81 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
Key Features
- 1 100-μA Typical Starting Supply Current
- 500-μA Typical Operating Supply Current
- Operation up to 1 MHz
- Internal Soft Start
- Internal Fault Soft Start
- Internal Leading-Edge Blanking of the Current Sense Signal
- 1-A Totem-Pole Output
- 70-ns Typical Response from Current-Sense to Gate Drive Output
- 1.5% Tolerance Voltage Reference
- Same Pinout as UC3842 and UC3842A
