UCC3803 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UCC3803
Manufacturer

TI
ChipWorker Part#

CW248723033
RoHS

Lead free / RoHS Compliant
Description

Low-Power BiCMOS Current-Mode PWM
Documentation

Datasheet

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UCC3803 Specifications

Attribute	Attribute Value

Part Number	UCC3803
Manufacturer	TI
ChipWorker Part#	CW248723033
Documentation	Datasheet
Case/Package	TSSOP-8
	expand all
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product 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 pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
The UCCx80x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery-operated systems, while the higher reference and higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.
The UCC180x series is specified for operation from 55°C to 125°C, the UCC280x series is specified for operation from 40°C to 85°C, and the UCC380x series is specified for operation from 0°C to 70°C.
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

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