UC2844BD1R2G - ON Semiconductor

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

Part No

UC2844BD1R2G
Manufacturer

ON Semiconductor
ChipWorker Part#

CW69421
Category

Voltage Regulator
RoHS

Lead free / RoHS Compliant
Description

UC2844BD1R2G, PWM Current Mode Controller, 1A, 250kHz, 30V, 8Pin SOIC
Documentation

Datasheet

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UC2844BD1R2G Specifications

Attribute	Attribute Value

Part Number	UC2844BD1R2G
Manufacturer	ON Semiconductor
ChipWorker Part#	CW69421
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Frequency	250 kHz
Supply Voltage (DC)	12.0V (min)
Operating Voltage	10V ~ 36V
Halogen Free Status	Halogen Free
Number of Outputs	1 Output
Input Voltage (DC)	30.0 V
Output Voltage	13.4 V
Output Current	12 mA
Supply Current	12 mA
Number of Positions	8 Position
Power Dissipation	0.702 W
Rise Time	50 ns
Switching Frequency	500 kHz
Topology	Flyback
Duty Cycle	48 %
Maximum Duty Cycle	48 %
Fall Time	50 ns
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-25 ℃
Power Dissipation (Max)	702 mW
Supply Voltage	10V ~ 30V
Supply Voltage (Max)	25 V
Supply Voltage (Min)	12 V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.5 mm
Operating Temperature	-25℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The UC2844BD1R2G is a high-performance fixed frequency current-mode Pulse Width Modulation (PWM) Controller specifically designed for off-line and DC to DC converter applications offering the designer a cost-effective solution with minimal external components. It features an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, a latch for single pulse metering and a flip-flop which blanks the output off every other oscillator cycle, allowing output deadtimes to be programmed from 50 to 70%.
Trimmed oscillator for precise frequency control
Automatic feed forward compensation
Internally trimmed reference with undervoltage lockout
High current totem pole output
Undervoltage lockout with hysteresis
Low startup and operating current

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