UC1843AMDREP - TI

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

Part No

UC1843AMDREP
Manufacturer

TI
ChipWorker Part#

CW7854661
Category

PWM Controller IC
Package

SOIC-8
Description

Current Mode PWM Controller 1A 500kHz 8Pin SOIC T/R
Documentation

Datasheet

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UC1843AMDREP Specifications

Attribute	Attribute Value

Part Number	UC1843AMDREP
Manufacturer	TI
ChipWorker Part#	CW7854661
Category	PWM Controller IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Frequency	500 kHz
Supply Voltage (DC)	12.0V (min)
Number of Outputs	1 Output
Output Voltage	13.5 V
Output Current	200 mA
Supply Current	17 mA
Number of Positions	8 Position
Power Dissipation	1 W
Number of Regulated Outputs	1 Output
Rise Time	50 ns
Switching Frequency	500 kHz
Duty Cycle	100 %
Maximum Duty Cycle	100 %
Fall Time	50 ns
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-55 ℃
Power Dissipation (Max)	1000 mW
Supply Voltage	7.6V ~ 30V
Supply Voltage (Max)	25 V
Supply Voltage (Min)	12 V
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Size-Height	1.5 mm
Operating Temperature	-55℃ ~ 125℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UC1843AMDREP is an enhanced current-mode Pulse Width Modulation (PWM) Controller features to control current-mode switched mode power supplies, this family has the following improved features. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
Controlled baseline
One assembly/test site, one fabrication site
Enhanced diminishing manufacturing sources (DMS) support
Qualification pedigree
Optimized for off-line and dc-to-dc converters
<0.5mA Low start up current
Trimmed oscillator discharge current
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
Low RO Error amplifier
Green product and no Sb/Br

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