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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

Never worry about a stable current not being supplied by using this UC3844BN current controller by STMicroelectronics. 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. In order to ensure parts aren"t damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This current mode controller has an operating temperature range of 0 °C to 70 °C. This device has a maximum of 30 V. This current mode controller"s maximum duty cycle is 50 %.

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UC3844BN Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Through Hole
Number of Pins	8 Pin
Case/Package	DIP-8
Frequency	250 kHz
Supply Voltage (DC)	12.0V (min)
Power Rating	1.25 W
Number of Outputs	1 Output
Input Voltage (DC)	25.0 V
Output Voltage	13.5 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	50 %
Maximum Duty Cycle	50 %
Fall Time	50 ns
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	1250 mW
Supply Voltage	11.5V ~ 25V
Supply Voltage (Max)	25 V
Supply Voltage (Min)	12 V
Input Voltage	25 V
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Size-Length	10.92 mm
Size-Width	6.6 mm
Size-Height	3.32 mm
Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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