UC3846DW ,Voltage Regulator - TI

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

Popularity Score

208 points

Part No

UC3846DW
Manufacturer

TI
ChipWorker Part#

CW4616984
Category

Voltage Regulator
Package

SOIC-16
Description

Current Mode PWM Controller 500mA 500kHz 16Pin SOIC Tube
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

$ 3.27

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UC3846DW Specifications

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Attribute	Attribute Value

Part Number	UC3846DW
Manufacturer	TI
ChipWorker Part#	CW4616984
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	450 kHz
Supply Voltage (DC)	8.00V (min)
Number of Outputs	2 Output
Input Voltage (DC)	15.0 V
Output Voltage	5.1 V
Output Current	500 mA
Supply Current	21 mA
Number of Positions	16 Position
Power Dissipation	1 W
Quiescent Current	17.0 mA
Number of Regulated Outputs	2 Output
Rise Time	50 ns
Switching Frequency	500 kHz
Topology	Buck, Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty Cycle	50 %
Maximum Duty Cycle	50 %
Fall Time	50 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Power Dissipation (Max)	1000 mW
Supply Voltage	7.7V ~ 40V
Supply Voltage (Max)	40 V
Supply Voltage (Min)	8 V
Input Voltage	15 V
	expand all
Size-Length	10.28 mm
Size-Width	7.52 mm
Size-Height	2.35 mm
Operating Temperature	0℃ ~ 70℃ (TA)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99
HK STC License	NLR

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Product Description

The UC3846DW is a current-mode Pulse Width Modulation (PWM) Controller provides all of the necessary features to implement fixed-frequency, current-mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters and the ability to parallel while maintaining equal current sharing. The protection circuitry includes built-in under-voltage lockout and programmable current limit, in addition to soft-start capability. A shutdown function is also available, which can initiate either a complete shutdown with automatic restart or latch the supply off. Other features include fully-latched operation, double-pulse suppression.
Automatic feed forward compensation
Programmable pulse-by-pulse current limiting
Automatic symmetry correction in push-pull configuration
Enhanced load response characteristics
Parallel operation capability for modular power systems
Differential current sense amplifier with wide common mode range
Double-pulse suppression
500mA (Peak) Totem-pole outputs
±1% Band gap reference
Undervoltage lockout
Soft-start capability
Shutdown terminal
Error amplifier
Green product and no Sb/Br

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