UC3843P - TI

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

Part No

UC3843P
Manufacturer

TI
ChipWorker Part#

CW322766583
Category

Audio Amplifier IC
Package

DIP
Description

Current Mode PWM Controller 1A 8Pin PDIP Tube
Documentation

Datasheet

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UC3843P Specifications

Attribute	Attribute Value

Part Number	UC3843P
Manufacturer	TI
ChipWorker Part#	CW322766583
Category	Audio Amplifier IC
Documentation	Datasheet
Number of Pins	8 Pin
Case/Package	DIP
Number of Regulated Outputs	1 Output
Topology	Buck, Boost, Flyback, Forward
	expand all
Product Lifecycle Status	Obsolete
RoHS	Non-Compliant
Lead-Free Status	Contains Lead

Product Description

DESCRIPTION
The UC1842/3/4/5 family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched
operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N Channel MOSFETs, is low in the off state.
FEATURES
• Optimized For Off-line And DC To DC Converters
• Low Start Up Current (<1mA)
• Automatic Feed Forward Compensation
• Pulse-by-pulse Current Limiting
• Enhanced Load Response Characteristics
• Under-voltage Lockout With Hysteresis
• Double Pulse Suppression
• High Current Totem Pole Output
• Internally Trimmed Bandgap Reference
• 500khz Operation
• Low ROError Amp

expand all

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