UC3843BN - ST Microelectronics

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

Part No

UC3843BN
Manufacturer

ST Microelectronics
ChipWorker Part#

CW648940
Category

PWM Controller IC
Package

PDIP-8
Description

Current Mode PWM Controller 1A 500kHz 8Pin PDIP Tube
Documentation

Datasheet

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UC3843BN Specifications

Attribute	Attribute Value

Part Number	UC3843BN
Manufacturer	ST Microelectronics
ChipWorker Part#	CW648940
Category	PWM Controller IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	8 Pin
Case/Package	PDIP-8
Frequency	250 kHz
Supply Voltage (DC)	12.0V (min)
Power Rating	1.25 W
Number of Outputs	1 Output
Input Voltage (DC)	15.0 V
Output Voltage	5.05 V
Output Current	1 A
Supply Current	17 mA
Number of Channels	1 Channel
Number of Positions	8 Position
Power Dissipation	1.25 W
Rise Time	50 ns
Switching Frequency	500 kHz
Thermal Resistance	100 ℃/W
Duty Cycle	100 %
Maximum Duty Cycle	100 %
Fall Time	50 ns
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-25 ℃
Power Dissipation (Max)	1250 mW
Supply Voltage	10.30 V
Supply Voltage (Max)	25 V
Supply Voltage (Min)	12 V
Input Voltage	15 V
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Size-Length	10.92 mm
Size-Width	6.6 mm
Size-Height	3.32 mm
Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99
HK STC License	NLR

Product Description

Varying voltages can be harmful to some microprocessor-based circuits. The UC3843BN current controller from STMicroelectronics is a great tool to modulate these levels to meet your requirements. This current mode controller supports boost|flyback topology. Its single PWM output produces a current of 1000(Max) mA. This part offers a switching frequency of 500 kHz in order to work properly. This current mode controller has a minimum operating temperature of 0 °C and a maximum of 70 °C. This current mode controller"s maximum duty cycle is 100 %. This device has a maximum of 30 V.

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